[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"blog-post-nl-ledstrip-voeding-berekenen":3,"blog-alternates-blog-post-nl-ledstrip-voeding-berekenen-led-strip-power-supply":611,"blog-next-steps-blog-post-nl-ledstrip-voeding-berekenen-led-strip-power-supply":2589},{"id":4,"title":5,"articleId":6,"body":7,"category":589,"date":590,"description":591,"extension":592,"lastUpdated":590,"locale":593,"meta":594,"navigation":595,"path":596,"publishDate":590,"readTime":597,"refreshInterval":598,"seo":599,"seoTitle":600,"slug":601,"stem":602,"tags":603,"__hash__":610},"blog\u002Fblog\u002Fled-strip-power-supply.nl.md","Ledstrip berekenen: welke voeding, hoeveel voedingspunten, welke doorsnede?","led-strip-power-supply",{"type":8,"value":9,"toc":566},"minimark",[10,24,29,32,49,52,183,186,190,197,200,204,207,269,275,279,286,293,297,300,314,317,389,401,405,408,428,432,438,444,454,458,465,468,471,475,480,483,487,490,494,497,501,504,508,511,515,518,522,535,539,556],[11,12,13,17,18,23],"p",{},[14,15,16],"strong",{},"Een ledstrip verbruikt watt per meter maal lengte, de stroom is dat vermogen gedeeld door de spanning, en de voeding kies je met ongeveer 20 % reserve. Vijf meter strip van 14,4 W\u002Fm op 24 V vraagt 72 W en 3 A: een voeding van 100 W volstaat."," Daarna bepalen twee lengtes de kwaliteit: hoe ver je de strip in één stuk mag voeden en hoe lang de kabel van de voeding naar de strip is. Beide reken je in een minuut uit met de ",[19,20,22],"a",{"href":21},"\u002Ftools\u002Fled-strip-berekenen","gratis ledstripcalculator",", waarna je de installatie in PlanElec uitwerkt tot in het eendraadschema.",[25,26,28],"h2",{"id":27},"hoe-bereken-je-vermogen-en-stroom-van-een-ledstrip","Hoe bereken je vermogen en stroom van een ledstrip?",[11,30,31],{},"Twee formules volstaan:",[33,34,35,43],"ul",{},[36,37,38,39],"li",{},"vermogen: ",[40,41,42],"code",{},"P = W\u002Fm × lengte",[36,44,45,46],{},"stroom: ",[40,47,48],{},"I = P \u002F U",[11,50,51],{},"Het vermogen per meter staat in de datasheet en geldt bij volle helderheid. Bij strips met meerdere kanalen (CCT, RGB, RGBW) is het de waarde met alle kanalen op vollast. Reken met die waarde, ook als je de kleuren later zelden tegelijk voluit zet. Neem de lengte die je echt plaatst: een strip knip je alleen op de knipmarkeringen, meestal elke 50 of 100 mm. Van 2,37 m wordt dan 2,35 m bij een knipmaat van 50 mm.",[53,54,55,77],"table",{},[56,57,58],"thead",{},[59,60,61,65,68,71,74],"tr",{},[62,63,64],"th",{},"Strip 24 V, 14,4 W\u002Fm",[62,66,67],{},"Vermogen",[62,69,70],{},"Stroom",[62,72,73],{},"Nodig met 20 % reserve",[62,75,76],{},"Voeding",[78,79,80,98,115,132,149,166],"tbody",{},[59,81,82,86,89,92,95],{},[83,84,85],"td",{},"2 m",[83,87,88],{},"28,8 W",[83,90,91],{},"1,2 A",[83,93,94],{},"34,6 W",[83,96,97],{},"36 W",[59,99,100,103,106,109,112],{},[83,101,102],{},"3 m",[83,104,105],{},"43,2 W",[83,107,108],{},"1,8 A",[83,110,111],{},"51,8 W",[83,113,114],{},"60 W",[59,116,117,120,123,126,129],{},[83,118,119],{},"5 m",[83,121,122],{},"72 W",[83,124,125],{},"3,0 A",[83,127,128],{},"86,4 W",[83,130,131],{},"100 W",[59,133,134,137,140,143,146],{},[83,135,136],{},"8 m",[83,138,139],{},"115,2 W",[83,141,142],{},"4,8 A",[83,144,145],{},"138,2 W",[83,147,148],{},"150 W",[59,150,151,154,157,160,163],{},[83,152,153],{},"10 m",[83,155,156],{},"144 W",[83,158,159],{},"6,0 A",[83,161,162],{},"172,8 W",[83,164,165],{},"185 W",[59,167,168,171,174,177,180],{},[83,169,170],{},"15 m",[83,172,173],{},"216 W",[83,175,176],{},"9,0 A",[83,178,179],{},"259,2 W",[83,181,182],{},"320 W",[11,184,185],{},"De kolom voeding toont de eerstvolgende gangbare handelsmaat. De datasheet van je voeding bepaalt de werkelijke reeks.",[25,187,189],{"id":188},"hoe-groot-moet-de-voeding-zijn","Hoe groot moet de voeding zijn?",[11,191,192,193,196],{},"Reken ",[40,194,195],{},"voeding ≥ P × 1,2",". De 20 % reserve houdt de voeding koel en duurzaam en vangt toleranties van strip en voeding op. Zit de voeding in een krap vals plafond, in een meubel of bij hoge omgevingstemperatuur, dan geldt bovendien de derating uit de datasheet: veel toestellen leveren daar minder dan hun nominaal vermogen.",[11,198,199],{},"Zo beantwoord je ook de omgekeerde vraag: hoeveel strip past op een bestaande voeding? Een voeding van 60 W levert met reserve 50 W, dus ruim 5 m strip van 9,6 W\u002Fm of bijna 3,5 m van 14,4 W\u002Fm. Volstaat de grootste voeding niet, dan verdeel je de installatie in delen met elk een eigen voeding.",[25,201,203],{"id":202},"_12-v-24-v-of-48-v","12 V, 24 V of 48 V?",[11,205,206],{},"Bij hetzelfde vermogen halveert de dubbele spanning de stroom, en de spanningsval in de kabel daalt in dezelfde verhouding. Voor 60 W over 5 m voedingskabel van 1,5 mm² koper:",[53,208,209,225],{},[56,210,211],{},[59,212,213,216,219,222],{},[62,214,215],{},"Spanning",[62,217,218],{},"Stroom bij 60 W",[62,220,221],{},"Spanningsval kabel",[62,223,224],{},"in %",[78,226,227,241,255],{},[59,228,229,232,235,238],{},[83,230,231],{},"12 V",[83,233,234],{},"5,0 A",[83,236,237],{},"0,58 V",[83,239,240],{},"4,9 %",[59,242,243,246,249,252],{},[83,244,245],{},"24 V",[83,247,248],{},"2,5 A",[83,250,251],{},"0,29 V",[83,253,254],{},"1,2 %",[59,256,257,260,263,266],{},[83,258,259],{},"48 V",[83,261,262],{},"1,25 A",[83,264,265],{},"0,15 V",[83,267,268],{},"0,3 %",[11,270,271,274],{},[14,272,273],{},"24 V is de standaard in woningen:"," ruim verkrijgbaar, langere stukken per voedingspunt dan 12 V en in de badkamer binnen de ZLVS-grenzen (zie verder). 12 V blijft zinvol voor korte strips in meubels en nissen of bij bestaande 12V-componenten. 48 V komt tot zijn recht bij lange lijnen en profielsystemen. 5 V is voorbehouden aan digitale pixelstrips en heel korte stukken.",[25,276,278],{"id":277},"wanneer-heeft-een-ledstrip-meerdere-voedingspunten-nodig","Wanneer heeft een ledstrip meerdere voedingspunten nodig?",[11,280,281,282,285],{},"Ook op de strip zelf valt spanning weg. Voed je hem te lang in één stuk, dan brandt het einde zichtbaar zwakker en verschuift bij RGB- en RGBW-strips de kleur. Fabrikanten geven daarom een ",[14,283,284],{},"maximale lengte per voedingspunt"," op. Die staat in de datasheet en daalt naarmate het vermogen per meter stijgt.",[11,287,288,289,292],{},"De berekening: ",[40,290,291],{},"voedingspunten = lengte ÷ maximale lengte per voedingspunt",", naar boven afgerond. Een strip van 12 m met 5 m fabrikantlengte heeft drie voedingspunten nodig; elk draagt dan een derde van de stroom. Elk voedingspunt krijgt een eigen kabel vanaf de voeding, parallel getrokken. Voor een lichtkoof rondom betekent dat: voeding centraal, voedingspunten in de hoeken, in plaats van één lange band vanaf één kant.",[25,294,296],{"id":295},"welke-doorsnede-voor-de-kabel-van-voeding-naar-strip","Welke doorsnede voor de kabel van voeding naar strip?",[11,298,299],{},"Zeer lage spanning betekent hoge stromen bij een lage spanning, dus elke meter kabel telt. De formule is de bekende eenfasige formule zonder arbeidsfactor:",[11,301,302,305,306,309,310,313],{},[40,303,304],{},"ΔU = 2 × ρ × L × I \u002F S",", met ",[40,307,308],{},"ρ"," = 0,0175 Ω·mm²\u002Fm voor koper en ",[40,311,312],{},"L"," de enkele lengte.",[11,315,316],{},"Voor een strip van 24 V met 3 A:",[53,318,319,335],{},[56,320,321],{},[59,322,323,326,329,332],{},[62,324,325],{},"Voedingskabel",[62,327,328],{},"0,75 mm²",[62,330,331],{},"1,5 mm²",[62,333,334],{},"2,5 mm²",[78,336,337,350,362,375],{},[59,338,339,341,344,347],{},[83,340,119],{},[83,342,343],{},"0,70 V · 2,9 %",[83,345,346],{},"0,35 V · 1,5 %",[83,348,349],{},"0,21 V · 0,9 %",[59,351,352,354,357,359],{},[83,353,153],{},[83,355,356],{},"1,40 V · 5,8 %",[83,358,343],{},[83,360,361],{},"0,42 V · 1,8 %",[59,363,364,366,369,372],{},[83,365,170],{},[83,367,368],{},"2,10 V · 8,8 %",[83,370,371],{},"1,05 V · 4,4 %",[83,373,374],{},"0,63 V · 2,6 %",[59,376,377,380,383,386],{},[83,378,379],{},"max. bij 3 %",[83,381,382],{},"5,1 m",[83,384,385],{},"10,3 m",[83,387,388],{},"17,1 m",[11,390,391,392,395,396,400],{},"We plannen met ",[14,393,394],{},"hoogstens 3 % spanningsval"," op de voedingskabel, zodat de strip gelijkmatig brandt. Het AREI noemt voor voedingskabels op zeer lage spanning geen vast percentage; we nemen de 3 % over die voor verlichtingskringen gebruikelijk is, als planningsgrens. De stroombelastbaarheid van dunne kabels controleer je bijkomend volgens de fabrikant; de calculator stelt daarom pas vanaf 0,75 mm² een doorsnede voor. De basis voor spanningsval op 230 V lees je in ",[19,397,399],{"href":398},"\u002Fblog\u002Fspanningsval-berekenen-kabeldoorsnede","Spanningsval berekenen",".",[25,402,404],{"id":403},"wat-verandert-er-bij-rgb-rgbw-en-tunable-white","Wat verandert er bij RGB, RGBW en tunable white?",[11,406,407],{},"Strips met meerdere kanalen verdelen hun vermogen over de kanalen: twee bij CCT (tunable white), drie bij RGB, vier bij RGBW, vijf bij RGB+CCT. Een RGBW-strip van 19,2 W\u002Fm over 4 m vraagt 76,8 W en 3,2 A, dus 0,8 A per kanaal. Daaruit volgen drie planningspunten:",[33,409,410,416,422],{},[36,411,412,415],{},[14,413,414],{},"Controller:"," hij moet de stroom per kanaal leveren. 0,8 A is geen probleem, 15 m van dezelfde strip met 3 A per kanaal niet meer voor elke controller.",[36,417,418,421],{},[14,419,420],{},"Aantal aders:"," de gemeenschappelijke plus en één geleider per kanaal. Mono heeft 2 aders, CCT 3, RGB 4, RGBW 5, RGB+CCT 6.",[36,423,424,427],{},[14,425,426],{},"Spanningsval:"," de gemeenschappelijke plusgeleider voert de stroom van alle kanalen, elke kanaalgeleider alleen zijn deel. De werkzame stroom is daardoor kleiner dan bij een even sterke strip met één kanaal. In het voorbeeld met 5 m en 0,75 mm² geeft dat 1,9 % in plaats van 3,1 %. De calculator houdt daar automatisch rekening mee.",[25,429,431],{"id":430},"wat-eist-het-arei-bij-ledstrips","Wat eist het AREI bij ledstrips?",[11,433,434,437],{},[14,435,436],{},"Spanning en aard van de stroom staan op het eendraadschema."," Onderafdeling 3.1.2.1 a vraagt dat voor elke huishoudelijke installatie. Een strip achter een voeding documenteer je dus met „24 V ⎓“, niet alleen met de 230V-kring ervoor. Tabel 2.23 heeft daarvoor een eigen symbool gelijkrichter AC↔DC; een veiligheidstransformator met AC-uitgang krijgt het transformatorsymbool.",[11,439,440,443],{},[14,441,442],{},"ZLVS vraagt een toegelaten bron en een correcte scheiding."," Onderafdeling 4.2.5.3 a bepaalt de toegelaten bronnen: een ledvoeding met ZLVS-uitgang voldoet daaraan, „lage spanning“ op zich nog niet. Volgens 4.2.5.3 c leg je ZLVS-geleiders met 10 mm afstand tot andere kringen, met bijkomende isolatie of in een kabel die volledig geïsoleerd is voor de hoogste aanwezige spanning. Dat speelt vooral in gedeelde dozen met drukknop, controller en 230V-bedrading.",[11,445,446,449,450,400],{},[14,447,448],{},"In de badkamer tellen volume en spanning."," Tabel 7.2 bij onderafdeling 7.1.4.2 a laat in de volumes 0 en 1 hoogstens 12 V wisselspanning of 30 V rimpelvrije gelijkspanning toe, in volume 2 tot 25 V AC of 60 V DC. Een strip van 24 V DC in een douchenis mag dus, als hij geschikt is voor dat volume. De ZLVS-bron, dus de voeding, staat volgens onderafdeling 7.1.5.2 buiten de volumes 0 en 1. Welke kabels in welk volume mogen, lees je in ",[19,451,453],{"href":452},"\u002Fblog\u002Fbadkamer-kabels-arei-zones","Kabels in de badkamer volgens de AREI-volumes",[25,455,457],{"id":456},"zo-reken-je-online","Zo reken je online",[11,459,460,461,464],{},"De ",[19,462,463],{"href":21},"ledstripcalculator"," geeft alle waarden uit dit artikel in één overzicht: vermogen, stroom totaal en per kanaal, nodige voedingspunten, grootte van de voeding, aanbevolen doorsnede van de voedingskabel en de vergelijking van doorsneden met spanningsval, eindspanning en maximale lengte. Hij dekt 5, 12, 24 en 48 V, strips met één kleur, CCT, RGB, RGBW en RGB+CCT, start met typische striptypes en neemt je eigen datasheetwaarden over.",[11,466,467],{},"Elk resultaat deel je als link of druk je af, handig om af te stemmen met klant en leverancier. AI-assistenten in de browser gebruiken de calculator rechtstreeks via WebMCP en geven dezelfde deelbare link terug.",[11,469,470],{},"De rollen zijn duidelijk: de calculator levert het ontwerp op basis van je datasheetwaarden. De fabrikantgegevens over lengte per voedingspunt, derating, warmteafvoer in het profiel en stroombelastbaarheid van de kabel bevestigt de betreffende datasheet.",[25,472,474],{"id":473},"veelgestelde-vragen","Veelgestelde vragen",[476,477,479],"h3",{"id":478},"mag-ik-de-strip-in-het-midden-voeden","Mag ik de strip in het midden voeden?",[11,481,482],{},"Ja. Een voeding in het midden halveert de lengte naar elke kant en telt als twee voedingspunten over elk de halve striplengte. Voor lange lijnen is dat vaak eleganter dan twee kabels naar beide uiteinden.",[476,484,486],{"id":485},"heeft-elke-ledstrip-een-aluminium-profiel-nodig","Heeft elke ledstrip een aluminium profiel nodig?",[11,488,489],{},"Vanaf een gemiddeld vermogen wel: het profiel voert de warmte af en bepaalt samen met de afdekking het lichtbeeld. Hoeveel vermogen per meter zonder profiel mag, bepaalt de fabrikant.",[476,491,493],{"id":492},"hoeveel-meter-past-op-een-voeding-van-100-w","Hoeveel meter past op een voeding van 100 W?",[11,495,496],{},"Met 20 % reserve heb je ruim 83 W: ongeveer 5,8 m bij 14,4 W\u002Fm, 8,7 m bij 9,6 W\u002Fm of 4,3 m bij 19,2 W\u002Fm (RGBW).",[476,498,500],{"id":499},"mag-ik-twee-voedingen-op-één-strip-aansluiten","Mag ik twee voedingen op één strip aansluiten?",[11,502,503],{},"Plan liever aparte delen met elk een eigen voeding. Of voedingen parallel of op een doorlopende strip mogen werken, beslist uitsluitend de fabrikant.",[476,505,507],{"id":506},"hoort-de-voeding-in-het-verdeelbord-of-bij-de-strip","Hoort de voeding in het verdeelbord of bij de strip?",[11,509,510],{},"Beide werken. Op de DIN-rail in het verdeelbord is ze bereikbaar en koel, maar vraagt ze lange kabels op zeer lage spanning; dan beslist de doorsnedetabel hierboven. Decentraal dicht bij de strip blijft de voedingskabel kort, maar de voeding moet bereikbaar en geschikt zijn voor de inbouwplaats.",[476,512,514],{"id":513},"welke-kabel-komt-tussen-controller-en-rgbw-strip","Welke kabel komt tussen controller en RGBW-strip?",[11,516,517],{},"Een vijfaderige kabel (gemeenschappelijke plus en vier kanalen), gedimensioneerd op de kanaalstroom en de lengte. Bij RGB+CCT zijn het zes aders.",[25,519,521],{"id":520},"ledverlichting-plannen-in-planelec","Ledverlichting plannen in PlanElec",[11,523,524,525,529,530,534],{},"In ",[19,526,528],{"href":527},"\u002F","PlanElec"," plaats je armaturen, voeding, schakelaars en drukknoppen rechtstreeks op het grondplan, wijs je ze toe aan stroomkringen en maak je er eendraadschema, situatieplan en materiaallijst van. De zelfcontrole bewaakt onder meer het aantal lichtpunten per kring en de spanningsval. Sturingen met Shelly- of KNX-actoren en drukknoppen plan je in hetzelfde project. ",[19,531,533],{"href":532},"\u002Fauth\u002Fregister","Registreer je gratis"," en start je eerste verlichtingsplan.",[25,536,538],{"id":537},"gerelateerde-artikels","Gerelateerde artikels",[33,540,541,546,550],{},[36,542,543],{},[19,544,545],{"href":398},"Spanningsval berekenen: hoe lang mag je kabel zijn?",[36,547,548],{},[19,549,453],{"href":452},[36,551,552],{},[19,553,555],{"href":554},"\u002Fblog\u002Fdomotica-arei","Smart Home en AREI: waar let je op bij domotica?",[11,557,558,559,565],{},"Officiële basis: ",[19,560,564],{"href":561,"rel":562},"https:\u002F\u002Feconomie.fgov.be\u002Fnl\u002Fpublicaties\u002Falgemeen-reglement-op-de",[563],"nofollow","FOD Economie, AREI Boek 1 V06",", in het bijzonder onderafdeling 3.1.2.1, tabel 2.23, onderafdeling 4.2.5.3 en de onderafdelingen 7.1.4.2 en 7.1.5.2.",{"title":567,"searchDepth":568,"depth":568,"links":569},"",2,[570,571,572,573,574,575,576,577,578,587,588],{"id":27,"depth":568,"text":28},{"id":188,"depth":568,"text":189},{"id":202,"depth":568,"text":203},{"id":277,"depth":568,"text":278},{"id":295,"depth":568,"text":296},{"id":403,"depth":568,"text":404},{"id":430,"depth":568,"text":431},{"id":456,"depth":568,"text":457},{"id":473,"depth":568,"text":474,"children":579},[580,582,583,584,585,586],{"id":478,"depth":581,"text":479},3,{"id":485,"depth":581,"text":486},{"id":492,"depth":581,"text":493},{"id":499,"depth":581,"text":500},{"id":506,"depth":581,"text":507},{"id":513,"depth":581,"text":514},{"id":520,"depth":568,"text":521},{"id":537,"depth":568,"text":538},"guide","2026-10-05","Bereken vermogen, stroom, voeding, voedingspunten en voedingskabel voor ledstrips op 12, 24 en 48 V. Met formules, tabellen, het RGBW-geval, de AREI-regels voor ZLVS en badkamer en een gratis calculator.","md","nl",{},true,"\u002Fblog\u002Fled-strip-power-supply.nl","9 min",12,{"title":5,"description":591},"Ledstrip berekenen: voeding, voedingspunten, doorsnede","ledstrip-voeding-berekenen","blog\u002Fled-strip-power-supply.nl",[604,605,606,607,608,609],"ledstrip","voeding","verlichting","spanningsval","zlvs","calculator","pVzMQaxANc16K7b3EnvdgOsmGxzna59s-m_yLg0g2sw",[612,1128,1684,2202],{"id":613,"title":614,"articleId":6,"body":615,"category":589,"date":590,"description":1112,"extension":592,"lastUpdated":590,"locale":1113,"meta":1114,"navigation":595,"path":1115,"publishDate":590,"readTime":597,"refreshInterval":598,"seo":1116,"seoTitle":1117,"slug":1118,"stem":1119,"tags":1120,"__hash__":1127},"blog\u002Fblog\u002Fled-strip-power-supply.de.md","LED-Streifen berechnen: Welches Netzteil, wie viele Einspeisungen, welcher Querschnitt?",{"type":8,"value":616,"toc":1092},[617,628,632,635,648,651,746,749,753,760,763,767,770,819,825,829,836,843,847,850,861,864,922,933,937,940,959,963,969,975,985,989,996,999,1002,1006,1010,1013,1017,1020,1024,1027,1031,1034,1038,1041,1045,1048,1052,1062,1066,1083],[11,618,619,622,623,627],{},[14,620,621],{},"Ein LED-Streifen braucht so viel Leistung wie Watt je Meter mal Länge, sein Strom ist diese Leistung geteilt durch die Spannung, und das Netzteil plant man mit rund 20 % Reserve darüber. Fünf Meter Streifen mit 14,4 W\u002Fm an 24 V ziehen 72 W und 3 A – ein 100-W-Netzteil passt."," Danach entscheiden zwei Längen über die Qualität: wie weit der Streifen am Stück gespeist werden darf und wie lang die Leitung vom Netzteil zum Streifen ist. Beides rechnest du in einer Minute mit dem ",[19,624,626],{"href":625},"\u002Fde\u002Ftools\u002Fled-streifen-rechner","kostenlosen LED-Streifen-Rechner"," – und planst die Anlage anschließend in PlanElec bis ins Eindrahtschema.",[25,629,631],{"id":630},"wie-berechne-ich-leistung-und-strom-eines-led-streifens","Wie berechne ich Leistung und Strom eines LED-Streifens?",[11,633,634],{},"Zwei Formeln reichen:",[33,636,637,643],{},[36,638,639,640],{},"Leistung: ",[40,641,642],{},"P = W\u002Fm × Länge",[36,644,645,646],{},"Strom: ",[40,647,48],{},[11,649,650],{},"Die Leistung je Meter steht im Datenblatt und gilt bei voller Helligkeit. Bei Mehrkanal-Streifen (CCT, RGB, RGBW) ist es der Wert mit allen Kanälen auf Volllast – plane mit diesem Wert, auch wenn du die Farben später selten gleichzeitig aufdrehst. Rechne mit der Länge, die du tatsächlich verbaust: Ein Streifen lässt sich nur an den Schnittmarken kürzen, typisch alle 50 oder 100 mm. Aus 2,37 m werden bei 50-mm-Teilung also 2,35 m.",[53,652,653,672],{},[56,654,655],{},[59,656,657,660,663,666,669],{},[62,658,659],{},"Streifen 24 V, 14,4 W\u002Fm",[62,661,662],{},"Leistung",[62,664,665],{},"Strom",[62,667,668],{},"Bedarf mit 20 % Reserve",[62,670,671],{},"Netzteil",[78,673,674,686,698,710,722,734],{},[59,675,676,678,680,682,684],{},[83,677,85],{},[83,679,88],{},[83,681,91],{},[83,683,94],{},[83,685,97],{},[59,687,688,690,692,694,696],{},[83,689,102],{},[83,691,105],{},[83,693,108],{},[83,695,111],{},[83,697,114],{},[59,699,700,702,704,706,708],{},[83,701,119],{},[83,703,122],{},[83,705,125],{},[83,707,128],{},[83,709,131],{},[59,711,712,714,716,718,720],{},[83,713,136],{},[83,715,139],{},[83,717,142],{},[83,719,145],{},[83,721,148],{},[59,723,724,726,728,730,732],{},[83,725,153],{},[83,727,156],{},[83,729,159],{},[83,731,162],{},[83,733,165],{},[59,735,736,738,740,742,744],{},[83,737,170],{},[83,739,173],{},[83,741,176],{},[83,743,179],{},[83,745,182],{},[11,747,748],{},"Die Netzteilspalte nennt die nächste gängige Handelsgröße. Das Datenblatt deines Netzteils entscheidet über die tatsächliche Typenreihe.",[25,750,752],{"id":751},"wie-groß-muss-das-netzteil-sein","Wie groß muss das Netzteil sein?",[11,754,755,756,759],{},"Rechne ",[40,757,758],{},"Netzteil ≥ P × 1,2",". Die 20 % Reserve halten das Netzteil kühl und langlebig und decken Toleranzen von Streifen und Netzteil ab. Sitzt das Netzteil in einer engen Zwischendecke, in einem Möbel oder bei hoher Umgebungstemperatur, gilt zusätzlich das Derating aus dem Datenblatt: Viele Geräte liefern dort weniger als ihre Nennleistung.",[11,761,762],{},"Umgekehrt beantwortest du so auch die häufige Frage, wie viel Streifen an ein vorhandenes Netzteil passt: Ein 60-W-Netzteil liefert mit Reserve 50 W, also gut 5 m eines 9,6-W\u002Fm-Streifens oder knapp 3,5 m eines 14,4-W\u002Fm-Streifens. Reicht das größte Netzteil nicht, teilst du die Anlage in Abschnitte mit je eigenem Netzteil.",[25,764,766],{"id":765},"_12-v-24-v-oder-48-v","12 V, 24 V oder 48 V?",[11,768,769],{},"Bei gleicher Leistung halbiert die doppelte Spannung den Strom – und der Spannungsfall in der Leitung sinkt im selben Verhältnis. Für 60 W über 5 m Zuleitung mit 1,5 mm² Kupfer:",[53,771,772,787],{},[56,773,774],{},[59,775,776,779,782,785],{},[62,777,778],{},"Spannung",[62,780,781],{},"Strom bei 60 W",[62,783,784],{},"Spannungsfall Zuleitung",[62,786,224],{},[78,788,789,799,809],{},[59,790,791,793,795,797],{},[83,792,231],{},[83,794,234],{},[83,796,237],{},[83,798,240],{},[59,800,801,803,805,807],{},[83,802,245],{},[83,804,248],{},[83,806,251],{},[83,808,254],{},[59,810,811,813,815,817],{},[83,812,259],{},[83,814,262],{},[83,816,265],{},[83,818,268],{},[11,820,821,824],{},[14,822,823],{},"24 V ist der Standard für Wohnräume:"," gut verfügbar, längere Strecken je Einspeisung als 12 V und im Badezimmer innerhalb der SELV-Grenzen (siehe unten). 12 V bleibt sinnvoll bei kurzen Möbel- und Nischenstreifen oder vorhandenen 12-V-Komponenten. 48 V spielt seine Stärke bei langen Linien und Profilsystemen aus. 5 V ist digitalen Pixelstreifen und sehr kurzen Stücken vorbehalten.",[25,826,828],{"id":827},"wann-braucht-ein-led-streifen-mehrere-einspeisungen","Wann braucht ein LED-Streifen mehrere Einspeisungen?",[11,830,831,832,835],{},"Auch auf dem Streifen selbst fällt Spannung ab. Wird er zu lang am Stück gespeist, leuchtet das Ende sichtbar dunkler, und bei RGB- und RGBW-Streifen verschiebt sich die Farbe. Die Hersteller geben deshalb eine ",[14,833,834],{},"maximale Länge je Einspeisung"," an. Sie steht im Datenblatt und sinkt mit steigender Leistung je Meter.",[11,837,838,839,842],{},"Die Rechnung: ",[40,840,841],{},"Einspeisungen = Länge ÷ maximale Länge je Einspeisung",", aufgerundet. Ein 12-m-Streifen mit 5 m Herstellerangabe braucht drei Einspeisungen; jede führt dann ein Drittel des Stroms. Jede Einspeisung bekommt ihre eigene Leitung vom Netzteil, parallel geführt. Für eine umlaufende Deckenvoute bedeutet das: Netzteil zentral, Einspeisungen an den Ecken, statt eines langen Bandes von einer Seite.",[25,844,846],{"id":845},"welcher-querschnitt-für-die-leitung-vom-netzteil-zum-streifen","Welcher Querschnitt für die Leitung vom Netzteil zum Streifen?",[11,848,849],{},"Kleinspannung bedeutet hohe Ströme bei kleiner Spannung – deshalb zählt jeder Meter Zuleitung. Die Formel ist die bekannte Einphasenformel ohne Leistungsfaktor:",[11,851,852,854,855,857,858,860],{},[40,853,304],{},", mit ",[40,856,308],{}," = 0,0175 Ω·mm²\u002Fm für Kupfer und ",[40,859,312],{}," als einfacher Länge.",[11,862,863],{},"Für einen 24-V-Streifen mit 3 A:",[53,865,866,879],{},[56,867,868],{},[59,869,870,873,875,877],{},[62,871,872],{},"Zuleitung",[62,874,328],{},[62,876,331],{},[62,878,334],{},[78,880,881,891,901,911],{},[59,882,883,885,887,889],{},[83,884,119],{},[83,886,343],{},[83,888,346],{},[83,890,349],{},[59,892,893,895,897,899],{},[83,894,153],{},[83,896,356],{},[83,898,343],{},[83,900,361],{},[59,902,903,905,907,909],{},[83,904,170],{},[83,906,368],{},[83,908,371],{},[83,910,374],{},[59,912,913,916,918,920],{},[83,914,915],{},"max. bei 3 %",[83,917,382],{},[83,919,385],{},[83,921,388],{},[11,923,924,925,928,929,400],{},"Wir planen mit ",[14,926,927],{},"höchstens 3 % Spannungsfall"," auf der Zuleitung, damit der Streifen gleichmäßig leuchtet. Das AREI nennt für Kleinspannungs-Zuleitungen keinen festen Prozentwert; wir übernehmen die 3 %, die für Beleuchtungsstromkreise üblich sind, als Planungsgrenze. Die Strombelastbarkeit dünner Leitungen prüfst du zusätzlich nach Herstellerangabe – der Rechner schlägt deshalb erst ab 0,75 mm² vor. Die Grundlagen zum Spannungsfall im 230-V-Netz stehen in ",[19,930,932],{"href":931},"\u002Fde\u002Fblog\u002Fspannungsfall-berechnen-kabelquerschnitt","Spannungsfall berechnen",[25,934,936],{"id":935},"was-ändert-sich-bei-rgb-rgbw-und-tunable-white","Was ändert sich bei RGB, RGBW und Tunable White?",[11,938,939],{},"Mehrkanal-Streifen teilen ihre Leistung auf die Kanäle auf: zwei bei CCT (Tunable White), drei bei RGB, vier bei RGBW, fünf bei RGB+CCT. Ein RGBW-Streifen mit 19,2 W\u002Fm über 4 m zieht 76,8 W und 3,2 A, also 0,8 A je Kanal. Daraus folgen drei Planungspunkte:",[33,941,942,947,953],{},[36,943,944,946],{},[14,945,414],{}," Er muss den Strom je Kanal liefern. 0,8 A sind unkritisch, 15 m desselben Streifens mit 3 A je Kanal nicht mehr für jeden Controller.",[36,948,949,952],{},[14,950,951],{},"Aderzahl:"," Der gemeinsame Pluspol plus ein Leiter je Kanal – mono 2, CCT 3, RGB 4, RGBW 5, RGB+CCT 6 Adern.",[36,954,955,958],{},[14,956,957],{},"Spannungsfall:"," Der gemeinsame Plusleiter führt den Strom aller Kanäle, jeder Kanalleiter nur seinen Anteil. Der wirksame Strom ist deshalb kleiner als beim gleich starken Einkanal-Streifen. Im Beispiel mit 5 m und 0,75 mm² ergibt das 1,9 % statt 3,1 %. Der Rechner berücksichtigt das automatisch.",[25,960,962],{"id":961},"was-verlangt-das-arei-bei-led-streifen","Was verlangt das AREI bei LED-Streifen?",[11,964,965,968],{},[14,966,967],{},"Spannung und Stromart gehören auf das Eindrahtschema."," Unterabschnitt 3.1.2.1 a verlangt sie für jede Haushaltsanlage. Ein Streifen hinter einem Netzteil wird also mit „24 V ⎓“ dokumentiert, nicht nur mit dem 230-V-Stromkreis davor. Tabelle 2.23 sieht dafür ein eigenes Symbol für Gleichrichter AC↔DC vor; ein AC-Sicherheitstransformator hat das Transformatorsymbol.",[11,970,971,974],{},[14,972,973],{},"SELV braucht eine zugelassene Quelle und saubere Trennung."," Unterabschnitt 4.2.5.3 a regelt die zulässigen Quellen – ein LED-Netzteil mit SELV-Ausgang erfüllt das, „Kleinspannung“ allein noch nicht. Nach 4.2.5.3 c führst du SELV-Leitungen mit 10 mm Abstand zu anderen Stromkreisen, mit zusätzlicher Isolierung oder in einem Kabel, das insgesamt für die höchste vorkommende Spannung isoliert ist. Das betrifft vor allem gemeinsame Dosen von Taster, Controller und 230-V-Verdrahtung.",[11,976,977,980,981,400],{},[14,978,979],{},"Im Bad zählen Bereich und Spannung."," Tabelle 7.2 zu Unterabschnitt 7.1.4.2 a erlaubt in den Bereichen 0 und 1 höchstens 12 V Wechselspannung oder 30 V oberschwingungsfreie Gleichspannung, in Bereich 2 bis 25 V AC bzw. 60 V DC. Ein 24-V-DC-Streifen in einer Duschnische ist damit zulässig, wenn er für den Bereich geeignet ist. Die SELV-Quelle – also das Netzteil – sitzt nach Unterabschnitt 7.1.5.2 außerhalb der Bereiche 0 und 1. Welche Kabel in welchen Bereich dürfen, erklärt ",[19,982,984],{"href":983},"\u002Fde\u002Fblog\u002Fbadezimmer-kabel-arei-zonen","Kabel im Badezimmer nach AREI-Bereichen",[25,986,988],{"id":987},"so-rechnest-du-online","So rechnest du online",[11,990,991,992,995],{},"Der ",[19,993,994],{"href":625},"LED-Streifen-Rechner"," liefert alle Werte dieses Artikels auf einen Blick: Leistung, Strom gesamt und je Kanal, nötige Einspeisungen, Netzteilgröße, empfohlenen Querschnitt der Zuleitung und den Querschnittsvergleich mit Spannungsfall, Endspannung und maximaler Länge. Er deckt 5, 12, 24 und 48 V ab, einfarbige, CCT-, RGB-, RGBW- und RGB+CCT-Streifen, startet mit typischen Streifentypen und übernimmt deine Datenblattwerte.",[11,997,998],{},"Jedes Ergebnis lässt sich als Link teilen oder drucken – praktisch für die Abstimmung mit Kunde und Lieferant. KI-Assistenten im Browser nutzen den Rechner direkt über WebMCP und geben denselben teilbaren Link zurück.",[11,1000,1001],{},"Die Rollen sind klar verteilt: Der Rechner liefert die Auslegung aus deinen Datenblattwerten. Herstellerangaben zu Einspeiselänge, Derating, Wärmeabfuhr im Profil und Strombelastbarkeit der Leitung bestätigt das jeweilige Datenblatt.",[25,1003,1005],{"id":1004},"häufig-gestellte-fragen","Häufig gestellte Fragen",[476,1007,1009],{"id":1008},"darf-ich-den-streifen-in-der-mitte-einspeisen","Darf ich den Streifen in der Mitte einspeisen?",[11,1011,1012],{},"Ja. Eine Mitteneinspeisung halbiert die Länge in jede Richtung und zählt wie zwei Einspeisungen über je die halbe Streifenlänge. Für lange Linien ist das oft eleganter als zwei Leitungen zu beiden Enden.",[476,1014,1016],{"id":1015},"braucht-jeder-led-streifen-ein-aluminiumprofil","Braucht jeder LED-Streifen ein Aluminiumprofil?",[11,1018,1019],{},"Ab mittlerer Leistung ja: Das Profil führt die Wärme ab und bestimmt mit der Abdeckung das Lichtbild. Wie viel Leistung je Meter ohne Profil zulässig ist, legt der Hersteller fest.",[476,1021,1023],{"id":1022},"wie-viele-meter-passen-an-ein-100-w-netzteil","Wie viele Meter passen an ein 100-W-Netzteil?",[11,1025,1026],{},"Mit 20 % Reserve stehen gut 83 W zur Verfügung: rund 5,8 m bei 14,4 W\u002Fm, 8,7 m bei 9,6 W\u002Fm oder 4,3 m bei 19,2 W\u002Fm (RGBW).",[476,1028,1030],{"id":1029},"kann-ich-zwei-netzteile-an-einen-streifen-hängen","Kann ich zwei Netzteile an einen Streifen hängen?",[11,1032,1033],{},"Plane stattdessen getrennte Abschnitte mit je eigenem Netzteil. Ob Netzteile parallel oder an einem durchgehenden Streifen betrieben werden dürfen, entscheidet ausschließlich der Hersteller.",[476,1035,1037],{"id":1036},"gehört-das-netzteil-in-den-verteiler-oder-an-den-streifen","Gehört das Netzteil in den Verteiler oder an den Streifen?",[11,1039,1040],{},"Beides funktioniert. Im Verteiler auf der Hutschiene ist es zugänglich und kühl, braucht aber lange Kleinspannungsleitungen – dann entscheidet die Querschnittstabelle oben. Dezentral nahe am Streifen bleibt die Zuleitung kurz, das Netzteil muss aber erreichbar und für den Einbauort geeignet sein.",[476,1042,1044],{"id":1043},"welche-leitung-kommt-zwischen-controller-und-rgbw-streifen","Welche Leitung kommt zwischen Controller und RGBW-Streifen?",[11,1046,1047],{},"Eine fünfadrige Leitung (gemeinsamer Plus plus vier Kanäle), dimensioniert auf den Kanalstrom und die Länge. Bei RGB+CCT sind es sechs Adern.",[25,1049,1051],{"id":1050},"led-beleuchtung-in-planelec-planen","LED-Beleuchtung in PlanElec planen",[11,1053,524,1054,1057,1058,1061],{},[19,1055,528],{"href":1056},"\u002Fde"," platzierst du Leuchten, Netzteil, Schalter und Taster direkt im Grundriss, ordnest sie den Stromkreisen zu und erzeugst daraus Eindrahtschema, Positionsplan und Materialliste. Die Selbstprüfung kontrolliert unter anderem die Zahl der Lichtpunkte je Stromkreis und den Spannungsfall. Steuerungen mit Shelly- oder KNX-Aktoren und Tastern planst du im selben Projekt. ",[19,1059,1060],{"href":532},"Jetzt kostenlos registrieren"," und deine erste Lichtplanung starten.",[25,1063,1065],{"id":1064},"verwandte-artikel","Verwandte Artikel",[33,1067,1068,1073,1077],{},[36,1069,1070],{},[19,1071,1072],{"href":931},"Spannungsfall berechnen: Wie lang darf das Kabel sein?",[36,1074,1075],{},[19,1076,984],{"href":983},[36,1078,1079],{},[19,1080,1082],{"href":1081},"\u002Fde\u002Fblog\u002Fsmart-home-domotica-arei","Smart Home und AREI: Was bei der Domotica zu beachten ist",[11,1084,1085,1086,1091],{},"Amtliche Grundlage: ",[19,1087,1090],{"href":1088,"rel":1089},"https:\u002F\u002Feconomie.fgov.be\u002Fde\u002Fpublication\u002Fallgemeine-vorschriften-fuer",[563],"FÖD Wirtschaft, AREI Buch 1 V06",", insbesondere Unterabschnitt 3.1.2.1, Tabelle 2.23, Unterabschnitt 4.2.5.3 sowie Unterabschnitte 7.1.4.2 und 7.1.5.2.",{"title":567,"searchDepth":568,"depth":568,"links":1093},[1094,1095,1096,1097,1098,1099,1100,1101,1102,1110,1111],{"id":630,"depth":568,"text":631},{"id":751,"depth":568,"text":752},{"id":765,"depth":568,"text":766},{"id":827,"depth":568,"text":828},{"id":845,"depth":568,"text":846},{"id":935,"depth":568,"text":936},{"id":961,"depth":568,"text":962},{"id":987,"depth":568,"text":988},{"id":1004,"depth":568,"text":1005,"children":1103},[1104,1105,1106,1107,1108,1109],{"id":1008,"depth":581,"text":1009},{"id":1015,"depth":581,"text":1016},{"id":1022,"depth":581,"text":1023},{"id":1029,"depth":581,"text":1030},{"id":1036,"depth":581,"text":1037},{"id":1043,"depth":581,"text":1044},{"id":1050,"depth":568,"text":1051},{"id":1064,"depth":568,"text":1065},"Leistung, Strom, Netzteilgröße, Einspeisungen und Zuleitung für 12-, 24- und 48-V-LED-Streifen berechnen – mit Formeln, Tabellen, RGBW-Sonderfall, AREI-Regeln für SELV und Bad und kostenlosem Rechner.","de",{},"\u002Fblog\u002Fled-strip-power-supply.de",{"title":614,"description":1112},"LED-Streifen berechnen: Netzteil, Einspeisung, Querschnitt","led-streifen-netzteil-berechnen","blog\u002Fled-strip-power-supply.de",[1121,1122,1123,1124,1125,1126],"led-streifen","netzteil","beleuchtung","spannungsfall","selv","rechner","Etv6D5FCXhP8u0YZ0c_83hopUIeNnazobW1PR09Lvhg",{"id":1129,"title":1130,"articleId":6,"body":1131,"category":589,"date":590,"description":1670,"extension":592,"lastUpdated":590,"locale":1671,"meta":1672,"navigation":595,"path":1673,"publishDate":590,"readTime":597,"refreshInterval":598,"seo":1674,"seoTitle":1675,"slug":1676,"stem":1677,"tags":1678,"__hash__":1683},"blog\u002Fblog\u002Fled-strip-power-supply.en.md","LED Strip Calculation: Which Power Supply, How Many Feed Points, Which Cable Size?",{"type":8,"value":1132,"toc":1650},[1133,1144,1148,1151,1164,1167,1277,1280,1284,1291,1294,1298,1301,1359,1365,1369,1376,1383,1387,1390,1401,1404,1476,1487,1491,1494,1513,1517,1520,1526,1532,1542,1546,1553,1556,1559,1563,1567,1570,1574,1577,1581,1584,1588,1591,1595,1598,1602,1605,1609,1619,1623,1641],[11,1134,1135,1138,1139,1143],{},[14,1136,1137],{},"An LED strip draws its watts per metre times its length, its current is that power divided by the voltage, and you size the power supply with about 20% reserve. Five metres of 14.4 W\u002Fm strip at 24 V need 72 W and 3 A, so a 100 W power supply fits."," Two lengths then decide the quality: how far the strip may run from one feed point, and how long the cable from the power supply to the strip is. You calculate both in a minute with the ",[19,1140,1142],{"href":1141},"\u002Fen\u002Ftools\u002Fled-strip-calculator","free LED strip calculator",", then plan the installation in PlanElec all the way to the single-line diagram.",[25,1145,1147],{"id":1146},"how-do-you-calculate-the-power-and-current-of-an-led-strip","How do you calculate the power and current of an LED strip?",[11,1149,1150],{},"Two formulas are enough:",[33,1152,1153,1159],{},[36,1154,1155,1156],{},"power: ",[40,1157,1158],{},"P = W\u002Fm × length",[36,1160,1161,1162],{},"current: ",[40,1163,48],{},[11,1165,1166],{},"Power per metre is in the datasheet and applies at full brightness. For multi-channel strips (CCT, RGB, RGBW) it is the value with all channels at full load. Plan with that value, even if you rarely run all colours at once. Use the length you actually install: a strip can only be cut at its cut marks, typically every 50 or 100 mm. With a 50 mm cut unit, 2.37 m becomes 2.35 m.",[53,1168,1169,1188],{},[56,1170,1171],{},[59,1172,1173,1176,1179,1182,1185],{},[62,1174,1175],{},"Strip 24 V, 14.4 W\u002Fm",[62,1177,1178],{},"Power",[62,1180,1181],{},"Current",[62,1183,1184],{},"Required with 20% reserve",[62,1186,1187],{},"Power supply",[78,1189,1190,1205,1220,1234,1249,1263],{},[59,1191,1192,1194,1197,1200,1203],{},[83,1193,85],{},[83,1195,1196],{},"28.8 W",[83,1198,1199],{},"1.2 A",[83,1201,1202],{},"34.6 W",[83,1204,97],{},[59,1206,1207,1209,1212,1215,1218],{},[83,1208,102],{},[83,1210,1211],{},"43.2 W",[83,1213,1214],{},"1.8 A",[83,1216,1217],{},"51.8 W",[83,1219,114],{},[59,1221,1222,1224,1226,1229,1232],{},[83,1223,119],{},[83,1225,122],{},[83,1227,1228],{},"3.0 A",[83,1230,1231],{},"86.4 W",[83,1233,131],{},[59,1235,1236,1238,1241,1244,1247],{},[83,1237,136],{},[83,1239,1240],{},"115.2 W",[83,1242,1243],{},"4.8 A",[83,1245,1246],{},"138.2 W",[83,1248,148],{},[59,1250,1251,1253,1255,1258,1261],{},[83,1252,153],{},[83,1254,156],{},[83,1256,1257],{},"6.0 A",[83,1259,1260],{},"172.8 W",[83,1262,165],{},[59,1264,1265,1267,1269,1272,1275],{},[83,1266,170],{},[83,1268,173],{},[83,1270,1271],{},"9.0 A",[83,1273,1274],{},"259.2 W",[83,1276,182],{},[11,1278,1279],{},"The power-supply column shows the next common commercial rating. Your power supply's datasheet sets the actual range.",[25,1281,1283],{"id":1282},"how-large-must-the-power-supply-be","How large must the power supply be?",[11,1285,1286,1287,1290],{},"Calculate ",[40,1288,1289],{},"power supply ≥ P × 1.2",". The 20% reserve keeps the power supply cool and long-lived and covers strip and supply tolerances. If the supply sits in a tight suspended ceiling, inside furniture or at high ambient temperature, the datasheet derating applies on top: many units deliver less than their rated power there.",[11,1292,1293],{},"The same formula answers the reverse question of how much strip an existing supply can carry. A 60 W supply delivers 50 W with reserve: just over 5 m of a 9.6 W\u002Fm strip or almost 3.5 m of a 14.4 W\u002Fm strip. If the largest supply is not enough, split the installation into sections, each with its own power supply.",[25,1295,1297],{"id":1296},"_12-v-24-v-or-48-v","12 V, 24 V or 48 V?",[11,1299,1300],{},"At the same power, doubling the voltage halves the current, and the voltage drop in the cable falls in the same ratio. For 60 W over a 5 m feed cable of 1.5 mm² copper:",[53,1302,1303,1318],{},[56,1304,1305],{},[59,1306,1307,1310,1313,1316],{},[62,1308,1309],{},"Voltage",[62,1311,1312],{},"Current at 60 W",[62,1314,1315],{},"Feed-cable voltage drop",[62,1317,224],{},[78,1319,1320,1333,1346],{},[59,1321,1322,1324,1327,1330],{},[83,1323,231],{},[83,1325,1326],{},"5.0 A",[83,1328,1329],{},"0.58 V",[83,1331,1332],{},"4.9%",[59,1334,1335,1337,1340,1343],{},[83,1336,245],{},[83,1338,1339],{},"2.5 A",[83,1341,1342],{},"0.29 V",[83,1344,1345],{},"1.2%",[59,1347,1348,1350,1353,1356],{},[83,1349,259],{},[83,1351,1352],{},"1.25 A",[83,1354,1355],{},"0.15 V",[83,1357,1358],{},"0.3%",[11,1360,1361,1364],{},[14,1362,1363],{},"24 V is the standard for homes:"," widely available, longer runs per feed point than 12 V and, in bathrooms, within the SELV limits (see below). 12 V still makes sense for short furniture and niche strips or existing 12 V components. 48 V plays to its strengths on long lines and profile systems. 5 V is for digital pixel strips and very short pieces.",[25,1366,1368],{"id":1367},"when-does-an-led-strip-need-several-feed-points","When does an LED strip need several feed points?",[11,1370,1371,1372,1375],{},"Voltage also drops along the strip itself. Fed too far from one end, the far end becomes visibly dimmer, and RGB and RGBW strips shift in colour. Manufacturers therefore state a ",[14,1373,1374],{},"maximum length per feed point",". It is in the datasheet and decreases as the power per metre rises.",[11,1377,1378,1379,1382],{},"The calculation: ",[40,1380,1381],{},"feed points = length ÷ maximum length per feed point",", rounded up. A 12 m strip with a 5 m manufacturer length needs three feed points; each then carries a third of the current. Every feed point gets its own cable from the power supply, run in parallel. For a light cove around a room this means a central power supply and feed points at the corners, rather than one long band fed from one side.",[25,1384,1386],{"id":1385},"which-cross-section-for-the-cable-from-power-supply-to-strip","Which cross-section for the cable from power supply to strip?",[11,1388,1389],{},"Extra-low voltage means high currents at a low voltage, so every metre of cable counts. The formula is the familiar single-phase one without a power factor:",[11,1391,1392,1394,1395,1397,1398,1400],{},[40,1393,304],{},", with ",[40,1396,308],{}," = 0.0175 Ω·mm²\u002Fm for copper and ",[40,1399,312],{}," the one-way length.",[11,1402,1403],{},"For a 24 V strip drawing 3 A:",[53,1405,1406,1422],{},[56,1407,1408],{},[59,1409,1410,1413,1416,1419],{},[62,1411,1412],{},"Feed cable",[62,1414,1415],{},"0.75 mm²",[62,1417,1418],{},"1.5 mm²",[62,1420,1421],{},"2.5 mm²",[78,1423,1424,1437,1449,1462],{},[59,1425,1426,1428,1431,1434],{},[83,1427,119],{},[83,1429,1430],{},"0.70 V · 2.9%",[83,1432,1433],{},"0.35 V · 1.5%",[83,1435,1436],{},"0.21 V · 0.9%",[59,1438,1439,1441,1444,1446],{},[83,1440,153],{},[83,1442,1443],{},"1.40 V · 5.8%",[83,1445,1430],{},[83,1447,1448],{},"0.42 V · 1.8%",[59,1450,1451,1453,1456,1459],{},[83,1452,170],{},[83,1454,1455],{},"2.10 V · 8.8%",[83,1457,1458],{},"1.05 V · 4.4%",[83,1460,1461],{},"0.63 V · 2.6%",[59,1463,1464,1467,1470,1473],{},[83,1465,1466],{},"max. at 3%",[83,1468,1469],{},"5.1 m",[83,1471,1472],{},"10.3 m",[83,1474,1475],{},"17.1 m",[11,1477,1478,1479,1482,1483,400],{},"We design for ",[14,1480,1481],{},"at most 3% voltage drop"," on the feed cable so the strip lights evenly. The AREI\u002FRGIE sets no fixed percentage for extra-low-voltage feed cables; we adopt the 3% customary for lighting circuits as the design limit. Check the current-carrying capacity of thin cables separately against the manufacturer's data; the calculator therefore only proposes cross-sections from 0.75 mm². The basics of voltage drop at 230 V are in ",[19,1484,1486],{"href":1485},"\u002Fen\u002Fblog\u002Fvoltage-drop-cable-sizing","Voltage drop calculation",[25,1488,1490],{"id":1489},"what-changes-with-rgb-rgbw-and-tunable-white","What changes with RGB, RGBW and tunable white?",[11,1492,1493],{},"Multi-channel strips split their power across channels: two for CCT (tunable white), three for RGB, four for RGBW, five for RGB+CCT. An RGBW strip of 19.2 W\u002Fm over 4 m draws 76.8 W and 3.2 A, i.e. 0.8 A per channel. That leads to three design points:",[33,1495,1496,1501,1507],{},[36,1497,1498,1500],{},[14,1499,414],{}," it must supply the current per channel. 0.8 A is easy; 15 m of the same strip at 3 A per channel is beyond some controllers.",[36,1502,1503,1506],{},[14,1504,1505],{},"Number of cores:"," the common positive plus one conductor per channel. Mono needs 2 cores, CCT 3, RGB 4, RGBW 5, RGB+CCT 6.",[36,1508,1509,1512],{},[14,1510,1511],{},"Voltage drop:"," the common positive conductor carries the current of all channels, each channel conductor only its share. The effective current is therefore lower than for a single-channel strip of the same power. In the example with 5 m and 0.75 mm², that gives 1.9% instead of 3.1%. The calculator accounts for this automatically.",[25,1514,1516],{"id":1515},"what-does-the-areirgie-require-for-led-strips","What does the AREI\u002FRGIE require for LED strips?",[11,1518,1519],{},"The AREI (RGIE in French) is the Belgian wiring regulation, Book 1 of the general regulation on electrical installations.",[11,1521,1522,1525],{},[14,1523,1524],{},"Voltage and type of current belong on the single-line diagram."," Subsection 3.1.2.1 a requires them for every domestic installation. A strip behind a power supply is therefore documented as \"24 V ⎓\", not only with the 230 V circuit in front of it. Table 2.23 has its own symbol for this, the AC↔DC rectifier; a safety transformer with AC output gets the transformer symbol.",[11,1527,1528,1531],{},[14,1529,1530],{},"SELV needs an approved source and proper separation."," Subsection 4.2.5.3 a defines the approved sources: an LED power supply with a SELV output qualifies, \"low voltage\" on its own does not. Under 4.2.5.3 c you run SELV conductors 10 mm away from other circuits, with additional insulation, or in a cable that is fully insulated for the highest voltage present. This matters mostly in boxes shared by push button, controller and 230 V wiring.",[11,1533,1534,1537,1538,400],{},[14,1535,1536],{},"In bathrooms, zone and voltage count."," Table 7.2 under subsection 7.1.4.2 a allows at most 12 V AC or 30 V ripple-free DC in zones 0 and 1, and up to 25 V AC or 60 V DC in zone 2. A 24 V DC strip in a shower niche is therefore permitted if it is suitable for that zone. The SELV source, i.e. the power supply, sits outside zones 0 and 1 according to subsection 7.1.5.2. Which cables go into which zone is covered in ",[19,1539,1541],{"href":1540},"\u002Fen\u002Fblog\u002Fbathroom-cables-arei-zones","Which cables can I use in the bathroom?",[25,1543,1545],{"id":1544},"calculate-online","Calculate online",[11,1547,1548,1549,1552],{},"The ",[19,1550,1551],{"href":1141},"LED strip calculator"," shows every value from this article at a glance: power, total and per-channel current, required feed points, power-supply size, recommended feed-cable cross-section and the cross-section comparison with voltage drop, end voltage and maximum length. It covers 5, 12, 24 and 48 V, single-colour, CCT, RGB, RGBW and RGB+CCT strips, starts from typical strip types and takes your own datasheet values.",[11,1554,1555],{},"Every result can be shared as a link or printed, which makes it easy to agree with clients and suppliers. AI assistants in the browser use the calculator directly via WebMCP and return the same shareable link.",[11,1557,1558],{},"The roles are clear: the calculator delivers the design from your datasheet values. The manufacturer's datasheet confirms length per feed point, derating, heat dissipation in the profile and the cable's current-carrying capacity.",[25,1560,1562],{"id":1561},"frequently-asked-questions","Frequently asked questions",[476,1564,1566],{"id":1565},"can-i-feed-the-strip-in-the-middle","Can I feed the strip in the middle?",[11,1568,1569],{},"Yes. A centre feed halves the length in each direction and counts as two feed points over half the strip length each. For long lines it is often neater than two cables to both ends.",[476,1571,1573],{"id":1572},"does-every-led-strip-need-an-aluminium-profile","Does every LED strip need an aluminium profile?",[11,1575,1576],{},"From medium power upwards, yes: the profile dissipates heat and, together with the diffuser, shapes the light. The manufacturer sets how much power per metre is allowed without a profile.",[476,1578,1580],{"id":1579},"how-many-metres-fit-on-a-100-w-power-supply","How many metres fit on a 100 W power supply?",[11,1582,1583],{},"With 20% reserve, just over 83 W is available: about 5.8 m at 14.4 W\u002Fm, 8.7 m at 9.6 W\u002Fm or 4.3 m at 19.2 W\u002Fm (RGBW).",[476,1585,1587],{"id":1586},"can-i-connect-two-power-supplies-to-one-strip","Can I connect two power supplies to one strip?",[11,1589,1590],{},"Plan separate sections, each with its own power supply, instead. Only the manufacturer decides whether supplies may run in parallel or on a continuous strip.",[476,1592,1594],{"id":1593},"does-the-power-supply-go-in-the-distribution-board-or-next-to-the-strip","Does the power supply go in the distribution board or next to the strip?",[11,1596,1597],{},"Both work. On the DIN rail in the board it stays accessible and cool, but needs long extra-low-voltage cables, so the cross-section table above decides. Placed near the strip, the feed cable stays short, but the supply must be accessible and suitable for its location.",[476,1599,1601],{"id":1600},"which-cable-goes-between-controller-and-rgbw-strip","Which cable goes between controller and RGBW strip?",[11,1603,1604],{},"A five-core cable (common positive plus four channels), sized for the channel current and the length. RGB+CCT needs six cores.",[25,1606,1608],{"id":1607},"plan-led-lighting-in-planelec","Plan LED lighting in PlanElec",[11,1610,524,1611,1614,1615,1618],{},[19,1612,528],{"href":1613},"\u002Fen"," you place luminaires, power supply, switches and push buttons directly on the floor plan, assign them to circuits and generate the single-line diagram, situation plan and material list. The self-check monitors, among other things, the number of light points per circuit and the voltage drop. Controls with Shelly or KNX actuators and push buttons are planned in the same project. ",[19,1616,1617],{"href":532},"Sign up for free"," and start your first lighting plan.",[25,1620,1622],{"id":1621},"related-articles","Related articles",[33,1624,1625,1630,1635],{},[36,1626,1627],{},[19,1628,1629],{"href":1485},"Voltage drop calculation: how long can your cable be?",[36,1631,1632],{},[19,1633,1634],{"href":1540},"Which cables can I use in the bathroom? (AREI zones)",[36,1636,1637],{},[19,1638,1640],{"href":1639},"\u002Fen\u002Fblog\u002Fsmart-home-domotica-arei","Smart home and AREI: what you need to know about home automation",[11,1642,1643,1644,1649],{},"Official basis: ",[19,1645,1648],{"href":1646,"rel":1647},"https:\u002F\u002Feconomie.fgov.be\u002Ffr\u002Fpublications\u002Freglement-general-sur-les",[563],"FPS Economy, AREI\u002FRGIE Book 1 V06",", in particular subsection 3.1.2.1, table 2.23, subsection 4.2.5.3 and subsections 7.1.4.2 and 7.1.5.2.",{"title":567,"searchDepth":568,"depth":568,"links":1651},[1652,1653,1654,1655,1656,1657,1658,1659,1660,1668,1669],{"id":1146,"depth":568,"text":1147},{"id":1282,"depth":568,"text":1283},{"id":1296,"depth":568,"text":1297},{"id":1367,"depth":568,"text":1368},{"id":1385,"depth":568,"text":1386},{"id":1489,"depth":568,"text":1490},{"id":1515,"depth":568,"text":1516},{"id":1544,"depth":568,"text":1545},{"id":1561,"depth":568,"text":1562,"children":1661},[1662,1663,1664,1665,1666,1667],{"id":1565,"depth":581,"text":1566},{"id":1572,"depth":581,"text":1573},{"id":1579,"depth":581,"text":1580},{"id":1586,"depth":581,"text":1587},{"id":1593,"depth":581,"text":1594},{"id":1600,"depth":581,"text":1601},{"id":1607,"depth":568,"text":1608},{"id":1621,"depth":568,"text":1622},"Calculate power, current, power-supply size, feed points and feed cable for 12, 24 and 48 V LED strips. Formulas, tables, the RGBW case, AREI\u002FRGIE rules for SELV and bathrooms, and a free calculator.","en",{},"\u002Fblog\u002Fled-strip-power-supply.en",{"title":1130,"description":1670},"LED Strip Calculation: Power Supply, Feeds, Cable Size","led-strip-power-supply-calculation","blog\u002Fled-strip-power-supply.en",[1679,1680,1681,1682,1125,609],"led-strip","power-supply","lighting","voltage-drop","7M8Y1DGfkY2NQrbxv2BI7e_kChpOK95VEj0wgtqsXFI",{"id":1685,"title":1686,"articleId":6,"body":1687,"category":589,"date":590,"description":2186,"extension":592,"lastUpdated":590,"locale":2187,"meta":2188,"navigation":595,"path":2189,"publishDate":590,"readTime":597,"refreshInterval":598,"seo":2190,"seoTitle":2191,"slug":2192,"stem":2193,"tags":2194,"__hash__":2201},"blog\u002Fblog\u002Fled-strip-power-supply.fr.md","Calculer un ruban LED : quelle alimentation, combien de points d’alimentation, quelle section ?",{"type":8,"value":1688,"toc":2166},[1689,1700,1704,1707,1720,1723,1818,1821,1825,1832,1835,1839,1842,1892,1898,1902,1909,1916,1920,1923,1934,1937,1995,2006,2010,2013,2033,2037,2043,2049,2059,2063,2070,2073,2076,2080,2084,2087,2091,2094,2098,2101,2105,2108,2112,2115,2119,2122,2126,2137,2141,2158],[11,1690,1691,1694,1695,1699],{},[14,1692,1693],{},"Un ruban LED consomme ses watts par mètre multipliés par sa longueur, son courant est cette puissance divisée par la tension, et l’alimentation se choisit avec environ 20 % de réserve. Cinq mètres de ruban à 14,4 W\u002Fm en 24 V demandent 72 W et 3 A : une alimentation de 100 W convient."," Deux longueurs décident ensuite de la qualité : la longueur que le ruban peut couvrir avec un seul point d’alimentation et la longueur du câble entre l’alimentation et le ruban. Vous calculez les deux en une minute avec le ",[19,1696,1698],{"href":1697},"\u002Ffr\u002Ftools\u002Fcalcul-ruban-led","calculateur gratuit de ruban LED",", puis vous concevez l’installation dans PlanElec jusqu’au schéma unifilaire.",[25,1701,1703],{"id":1702},"comment-calculer-la-puissance-et-le-courant-dun-ruban-led","Comment calculer la puissance et le courant d’un ruban LED ?",[11,1705,1706],{},"Deux formules suffisent :",[33,1708,1709,1715],{},[36,1710,1711,1712],{},"puissance : ",[40,1713,1714],{},"P = W\u002Fm × longueur",[36,1716,1717,1718],{},"courant : ",[40,1719,48],{},[11,1721,1722],{},"La puissance par mètre figure dans la fiche technique et s’entend à pleine luminosité. Pour les rubans multicanaux (CCT, RGB, RGBW), c’est la valeur avec tous les canaux à pleine charge. Calculez avec cette valeur, même si vous poussez rarement toutes les couleurs en même temps. Prenez la longueur réellement posée : un ruban se coupe uniquement aux repères de découpe, en général tous les 50 ou 100 mm. Avec un pas de 50 mm, 2,37 m deviennent 2,35 m.",[53,1724,1725,1744],{},[56,1726,1727],{},[59,1728,1729,1732,1735,1738,1741],{},[62,1730,1731],{},"Ruban 24 V, 14,4 W\u002Fm",[62,1733,1734],{},"Puissance",[62,1736,1737],{},"Courant",[62,1739,1740],{},"Besoin avec 20 % de réserve",[62,1742,1743],{},"Alimentation",[78,1745,1746,1758,1770,1782,1794,1806],{},[59,1747,1748,1750,1752,1754,1756],{},[83,1749,85],{},[83,1751,88],{},[83,1753,91],{},[83,1755,94],{},[83,1757,97],{},[59,1759,1760,1762,1764,1766,1768],{},[83,1761,102],{},[83,1763,105],{},[83,1765,108],{},[83,1767,111],{},[83,1769,114],{},[59,1771,1772,1774,1776,1778,1780],{},[83,1773,119],{},[83,1775,122],{},[83,1777,125],{},[83,1779,128],{},[83,1781,131],{},[59,1783,1784,1786,1788,1790,1792],{},[83,1785,136],{},[83,1787,139],{},[83,1789,142],{},[83,1791,145],{},[83,1793,148],{},[59,1795,1796,1798,1800,1802,1804],{},[83,1797,153],{},[83,1799,156],{},[83,1801,159],{},[83,1803,162],{},[83,1805,165],{},[59,1807,1808,1810,1812,1814,1816],{},[83,1809,170],{},[83,1811,173],{},[83,1813,176],{},[83,1815,179],{},[83,1817,182],{},[11,1819,1820],{},"La colonne alimentation indique la puissance commerciale courante suivante. La fiche technique de votre alimentation fixe la gamme réelle.",[25,1822,1824],{"id":1823},"quelle-puissance-dalimentation-choisir","Quelle puissance d’alimentation choisir ?",[11,1826,1827,1828,1831],{},"Calculez ",[40,1829,1830],{},"alimentation ≥ P × 1,2",". Les 20 % de réserve gardent l’alimentation froide et durable et couvrent les tolérances du ruban et de l’alimentation. Si l’alimentation est logée dans un faux plafond étroit, dans un meuble ou à température ambiante élevée, le déclassement de la fiche technique s’applique en plus : beaucoup d’appareils y fournissent moins que leur puissance nominale.",[11,1833,1834],{},"La même formule répond à la question inverse : combien de ruban sur une alimentation existante ? Une alimentation de 60 W fournit 50 W avec la réserve, soit un peu plus de 5 m d’un ruban de 9,6 W\u002Fm ou près de 3,5 m d’un ruban de 14,4 W\u002Fm. Si la plus grande alimentation ne suffit pas, découpez l’installation en tronçons, chacun avec sa propre alimentation.",[25,1836,1838],{"id":1837},"_12-v-24-v-ou-48-v","12 V, 24 V ou 48 V ?",[11,1840,1841],{},"À puissance égale, doubler la tension divise le courant par deux, et la chute de tension dans le câble baisse dans la même proportion. Pour 60 W sur 5 m de câble d’alimentation en cuivre de 1,5 mm² :",[53,1843,1844,1860],{},[56,1845,1846],{},[59,1847,1848,1851,1854,1857],{},[62,1849,1850],{},"Tension",[62,1852,1853],{},"Courant à 60 W",[62,1855,1856],{},"Chute de tension câble",[62,1858,1859],{},"en %",[78,1861,1862,1872,1882],{},[59,1863,1864,1866,1868,1870],{},[83,1865,231],{},[83,1867,234],{},[83,1869,237],{},[83,1871,240],{},[59,1873,1874,1876,1878,1880],{},[83,1875,245],{},[83,1877,248],{},[83,1879,251],{},[83,1881,254],{},[59,1883,1884,1886,1888,1890],{},[83,1885,259],{},[83,1887,262],{},[83,1889,265],{},[83,1891,268],{},[11,1893,1894,1897],{},[14,1895,1896],{},"Le 24 V est la référence dans le logement :"," largement disponible, des longueurs par point d’alimentation plus grandes qu’en 12 V et, en salle de bain, dans les limites de la TBTS (voir plus bas). Le 12 V reste pertinent pour les rubans courts de meubles et de niches ou avec des composants 12 V existants. Le 48 V montre sa force sur les longues lignes et les systèmes de profilés. Le 5 V est réservé aux rubans numériques à pixels et aux très courtes longueurs.",[25,1899,1901],{"id":1900},"quand-faut-il-plusieurs-points-dalimentation","Quand faut-il plusieurs points d’alimentation ?",[11,1903,1904,1905,1908],{},"La tension chute aussi le long du ruban. Alimenté trop loin d’un seul côté, il éclaire nettement moins en bout de ligne et, pour les rubans RGB et RGBW, la couleur dérive. Les fabricants indiquent donc une ",[14,1906,1907],{},"longueur maximale par point d’alimentation",". Elle figure dans la fiche technique et diminue quand la puissance par mètre augmente.",[11,1910,1911,1912,1915],{},"Le calcul : ",[40,1913,1914],{},"points d’alimentation = longueur ÷ longueur maximale par point",", arrondi à l’unité supérieure. Un ruban de 12 m avec 5 m selon le fabricant demande trois points d’alimentation ; chacun porte un tiers du courant. Chaque point reçoit son propre câble depuis l’alimentation, tiré en parallèle. Pour une gorge lumineuse périphérique, cela signifie : alimentation centrale et points d’alimentation dans les angles, plutôt qu’une longue bande alimentée d’un seul côté.",[25,1917,1919],{"id":1918},"quelle-section-pour-le-câble-entre-alimentation-et-ruban","Quelle section pour le câble entre alimentation et ruban ?",[11,1921,1922],{},"Très basse tension signifie courants élevés sous faible tension : chaque mètre de câble compte. La formule est la formule monophasée connue, sans facteur de puissance :",[11,1924,1925,1927,1928,1930,1931,1933],{},[40,1926,304],{},", avec ",[40,1929,308],{}," = 0,0175 Ω·mm²\u002Fm pour le cuivre et ",[40,1932,312],{}," la longueur simple.",[11,1935,1936],{},"Pour un ruban 24 V de 3 A :",[53,1938,1939,1952],{},[56,1940,1941],{},[59,1942,1943,1946,1948,1950],{},[62,1944,1945],{},"Câble d’alimentation",[62,1947,328],{},[62,1949,331],{},[62,1951,334],{},[78,1953,1954,1964,1974,1984],{},[59,1955,1956,1958,1960,1962],{},[83,1957,119],{},[83,1959,343],{},[83,1961,346],{},[83,1963,349],{},[59,1965,1966,1968,1970,1972],{},[83,1967,153],{},[83,1969,356],{},[83,1971,343],{},[83,1973,361],{},[59,1975,1976,1978,1980,1982],{},[83,1977,170],{},[83,1979,368],{},[83,1981,371],{},[83,1983,374],{},[59,1985,1986,1989,1991,1993],{},[83,1987,1988],{},"max. à 3 %",[83,1990,382],{},[83,1992,385],{},[83,1994,388],{},[11,1996,1997,1998,2001,2002,400],{},"Nous concevons avec ",[14,1999,2000],{},"au plus 3 % de chute de tension"," sur le câble d’alimentation, pour un éclairage homogène du ruban. Le RGIE ne fixe pas de pourcentage pour les câbles d’alimentation en très basse tension ; nous reprenons les 3 % usuels pour les circuits d’éclairage comme limite de conception. Vérifiez en plus le courant admissible des câbles fins selon le fabricant ; c’est pourquoi le calculateur ne propose une section qu’à partir de 0,75 mm². Les bases de la chute de tension en 230 V figurent dans ",[19,2003,2005],{"href":2004},"\u002Ffr\u002Fblog\u002Fchute-de-tension-section-cable","Calculer la chute de tension",[25,2007,2009],{"id":2008},"quest-ce-qui-change-avec-rgb-rgbw-et-blanc-réglable","Qu’est-ce qui change avec RGB, RGBW et blanc réglable ?",[11,2011,2012],{},"Les rubans multicanaux répartissent leur puissance entre les canaux : deux en CCT (blanc réglable), trois en RGB, quatre en RGBW, cinq en RGB+CCT. Un ruban RGBW de 19,2 W\u002Fm sur 4 m demande 76,8 W et 3,2 A, soit 0,8 A par canal. Trois points de conception en découlent :",[33,2014,2015,2021,2027],{},[36,2016,2017,2020],{},[14,2018,2019],{},"Contrôleur :"," il doit fournir le courant par canal. 0,8 A ne pose aucun problème ; 15 m du même ruban, avec 3 A par canal, dépassent déjà certains contrôleurs.",[36,2022,2023,2026],{},[14,2024,2025],{},"Nombre de conducteurs :"," le positif commun plus un conducteur par canal. Mono : 2 conducteurs, CCT : 3, RGB : 4, RGBW : 5, RGB+CCT : 6.",[36,2028,2029,2032],{},[14,2030,2031],{},"Chute de tension :"," le conducteur positif commun porte le courant de tous les canaux, chaque conducteur de canal seulement sa part. Le courant effectif est donc plus faible que pour un ruban monocanal de même puissance. Dans l’exemple avec 5 m et 0,75 mm², cela donne 1,9 % au lieu de 3,1 %. Le calculateur en tient compte automatiquement.",[25,2034,2036],{"id":2035},"quexige-le-rgie-pour-les-rubans-led","Qu’exige le RGIE pour les rubans LED ?",[11,2038,2039,2042],{},[14,2040,2041],{},"La tension et la nature du courant figurent sur le schéma unifilaire."," La sous-section 3.1.2.1 a l’exige pour toute installation domestique. Un ruban derrière une alimentation se documente donc avec « 24 V ⎓ », pas seulement avec le circuit 230 V en amont. Le tableau 2.23 prévoit pour cela un symbole propre, redresseur AC↔DC ; un transformateur de sécurité à sortie alternative reçoit le symbole du transformateur.",[11,2044,2045,2048],{},[14,2046,2047],{},"La TBTS exige une source admise et une séparation correcte."," La sous-section 4.2.5.3 a définit les sources admises : une alimentation LED à sortie TBTS y répond, une « basse tension » en soi non. Selon 4.2.5.3 c, vous posez les conducteurs TBTS à 10 mm des autres circuits, avec une isolation supplémentaire ou dans un câble entièrement isolé pour la tension la plus élevée présente. C’est surtout le cas dans les boîtes partagées entre bouton-poussoir, contrôleur et câblage 230 V.",[11,2050,2051,2054,2055,400],{},[14,2052,2053],{},"En salle de bain, le volume et la tension comptent."," Le tableau 7.2 de la sous-section 7.1.4.2 a admet dans les volumes 0 et 1 au plus 12 V en alternatif ou 30 V en continu lissé, dans le volume 2 jusqu’à 25 V AC ou 60 V DC. Un ruban 24 V DC dans une niche de douche est donc admis s’il convient pour ce volume. La source TBTS, c’est-à-dire l’alimentation, se trouve selon la sous-section 7.1.5.2 en dehors des volumes 0 et 1. Quels câbles vont dans quel volume : voir ",[19,2056,2058],{"href":2057},"\u002Ffr\u002Fblog\u002Fcables-salle-de-bain-rgie","Câbles dans la salle de bain selon les volumes RGIE",[25,2060,2062],{"id":2061},"calculer-en-ligne","Calculer en ligne",[11,2064,2065,2066,2069],{},"Le ",[19,2067,2068],{"href":1697},"calculateur de ruban LED"," affiche toutes les valeurs de cet article d’un coup d’œil : puissance, courant total et par canal, points d’alimentation nécessaires, taille de l’alimentation, section recommandée du câble d’alimentation et comparaison des sections avec chute de tension, tension en bout de ligne et longueur maximale. Il couvre le 5, 12, 24 et 48 V, les rubans monochromes, CCT, RGB, RGBW et RGB+CCT, démarre avec des types de rubans courants et reprend vos valeurs de fiche technique.",[11,2071,2072],{},"Chaque résultat se partage par lien ou s’imprime, pratique pour se coordonner avec le client et le fournisseur. Les assistants IA du navigateur utilisent le calculateur directement via WebMCP et renvoient le même lien partageable.",[11,2074,2075],{},"Les rôles sont clairs : le calculateur fournit le dimensionnement à partir de vos valeurs de fiche technique. Les données du fabricant sur la longueur par point d’alimentation, le déclassement, la dissipation thermique dans le profilé et le courant admissible du câble sont confirmées par la fiche technique concernée.",[25,2077,2079],{"id":2078},"questions-fréquentes","Questions fréquentes",[476,2081,2083],{"id":2082},"puis-je-alimenter-le-ruban-au-milieu","Puis-je alimenter le ruban au milieu ?",[11,2085,2086],{},"Oui. Une alimentation au milieu divise la longueur par deux de chaque côté et compte comme deux points d’alimentation sur chacun une demi-longueur. Pour les longues lignes, c’est souvent plus élégant que deux câbles vers les deux extrémités.",[476,2088,2090],{"id":2089},"chaque-ruban-led-a-t-il-besoin-dun-profilé-en-aluminium","Chaque ruban LED a-t-il besoin d’un profilé en aluminium ?",[11,2092,2093],{},"À partir d’une puissance moyenne, oui : le profilé évacue la chaleur et détermine, avec le diffuseur, le rendu lumineux. La puissance par mètre admise sans profilé est fixée par le fabricant.",[476,2095,2097],{"id":2096},"combien-de-mètres-sur-une-alimentation-de-100-w","Combien de mètres sur une alimentation de 100 W ?",[11,2099,2100],{},"Avec 20 % de réserve, un peu plus de 83 W sont disponibles : environ 5,8 m à 14,4 W\u002Fm, 8,7 m à 9,6 W\u002Fm ou 4,3 m à 19,2 W\u002Fm (RGBW).",[476,2102,2104],{"id":2103},"puis-je-raccorder-deux-alimentations-sur-un-même-ruban","Puis-je raccorder deux alimentations sur un même ruban ?",[11,2106,2107],{},"Prévoyez plutôt des tronçons séparés, chacun avec sa propre alimentation. Seul le fabricant décide si des alimentations peuvent fonctionner en parallèle ou sur un ruban continu.",[476,2109,2111],{"id":2110},"lalimentation-va-t-elle-dans-le-tableau-électrique-ou-près-du-ruban","L’alimentation va-t-elle dans le tableau électrique ou près du ruban ?",[11,2113,2114],{},"Les deux fonctionnent. Sur rail DIN dans le tableau, elle reste accessible et au frais, mais demande de longs câbles en très basse tension : le tableau des sections ci-dessus tranche alors. Décentralisée près du ruban, le câble d’alimentation reste court, mais l’alimentation doit être accessible et adaptée à son emplacement.",[476,2116,2118],{"id":2117},"quel-câble-entre-le-contrôleur-et-un-ruban-rgbw","Quel câble entre le contrôleur et un ruban RGBW ?",[11,2120,2121],{},"Un câble à cinq conducteurs (positif commun et quatre canaux), dimensionné sur le courant par canal et la longueur. En RGB+CCT, il en faut six.",[25,2123,2125],{"id":2124},"planifier-léclairage-led-dans-planelec","Planifier l’éclairage LED dans PlanElec",[11,2127,2128,2129,2132,2133,2136],{},"Dans ",[19,2130,528],{"href":2131},"\u002Ffr",", vous placez luminaires, alimentation, interrupteurs et boutons-poussoirs directement sur le plan, vous les affectez aux circuits et vous en tirez schéma unifilaire, plan de position et liste de matériel. L’autocontrôle surveille notamment le nombre de points lumineux par circuit et la chute de tension. Les commandes avec actionneurs Shelly ou KNX et boutons-poussoirs se planifient dans le même projet. ",[19,2134,2135],{"href":532},"Inscrivez-vous gratuitement"," et lancez votre premier plan d’éclairage.",[25,2138,2140],{"id":2139},"articles-liés","Articles liés",[33,2142,2143,2148,2152],{},[36,2144,2145],{},[19,2146,2147],{"href":2004},"Calculer la chute de tension : quelle longueur de câble ?",[36,2149,2150],{},[19,2151,2058],{"href":2057},[36,2153,2154],{},[19,2155,2157],{"href":2156},"\u002Ffr\u002Fblog\u002Fdomotique-rgie","Smart Home et RGIE : ce qu’il faut savoir sur la domotique",[11,2159,2160,2161,2165],{},"Base officielle : ",[19,2162,2164],{"href":1646,"rel":2163},[563],"SPF Économie, Livre 1 V06 du RGIE",", en particulier la sous-section 3.1.2.1, le tableau 2.23, la sous-section 4.2.5.3 et les sous-sections 7.1.4.2 et 7.1.5.2.",{"title":567,"searchDepth":568,"depth":568,"links":2167},[2168,2169,2170,2171,2172,2173,2174,2175,2176,2184,2185],{"id":1702,"depth":568,"text":1703},{"id":1823,"depth":568,"text":1824},{"id":1837,"depth":568,"text":1838},{"id":1900,"depth":568,"text":1901},{"id":1918,"depth":568,"text":1919},{"id":2008,"depth":568,"text":2009},{"id":2035,"depth":568,"text":2036},{"id":2061,"depth":568,"text":2062},{"id":2078,"depth":568,"text":2079,"children":2177},[2178,2179,2180,2181,2182,2183],{"id":2082,"depth":581,"text":2083},{"id":2089,"depth":581,"text":2090},{"id":2096,"depth":581,"text":2097},{"id":2103,"depth":581,"text":2104},{"id":2110,"depth":581,"text":2111},{"id":2117,"depth":581,"text":2118},{"id":2124,"depth":568,"text":2125},{"id":2139,"depth":568,"text":2140},"Calculez puissance, courant, alimentation, points d’alimentation et câble d’alimentation des rubans LED 12, 24 et 48 V. Formules, tableaux, cas RGBW, règles du RGIE pour la TBTS et la salle de bain, calculateur gratuit.","fr",{},"\u002Fblog\u002Fled-strip-power-supply.fr",{"title":1686,"description":2186},"Calculer un ruban LED : alimentation, injections, section","ruban-led-alimentation-calcul","blog\u002Fled-strip-power-supply.fr",[2195,2196,2197,2198,2199,2200],"ruban-led","alimentation","eclairage","chute-de-tension","tbts","calculateur","p5EYCfir5yuL3s4sPMaV_-5XXDp1MoLIwCpdYntAx8Y",{"id":4,"title":5,"articleId":6,"body":2203,"category":589,"date":590,"description":591,"extension":592,"lastUpdated":590,"locale":593,"meta":2586,"navigation":595,"path":596,"publishDate":590,"readTime":597,"refreshInterval":598,"seo":2587,"seoTitle":600,"slug":601,"stem":602,"tags":2588,"__hash__":610},{"type":8,"value":2204,"toc":2566},[2205,2211,2213,2215,2225,2227,2317,2319,2321,2325,2327,2329,2331,2377,2381,2383,2387,2391,2393,2395,2403,2405,2461,2467,2469,2471,2485,2487,2491,2495,2501,2503,2507,2509,2511,2513,2515,2517,2519,2521,2523,2525,2527,2529,2531,2533,2535,2537,2539,2545,2547,2561],[11,2206,2207,17,2209,23],{},[14,2208,16],{},[19,2210,22],{"href":21},[25,2212,28],{"id":27},[11,2214,31],{},[33,2216,2217,2221],{},[36,2218,38,2219],{},[40,2220,42],{},[36,2222,45,2223],{},[40,2224,48],{},[11,2226,51],{},[53,2228,2229,2243],{},[56,2230,2231],{},[59,2232,2233,2235,2237,2239,2241],{},[62,2234,64],{},[62,2236,67],{},[62,2238,70],{},[62,2240,73],{},[62,2242,76],{},[78,2244,2245,2257,2269,2281,2293,2305],{},[59,2246,2247,2249,2251,2253,2255],{},[83,2248,85],{},[83,2250,88],{},[83,2252,91],{},[83,2254,94],{},[83,2256,97],{},[59,2258,2259,2261,2263,2265,2267],{},[83,2260,102],{},[83,2262,105],{},[83,2264,108],{},[83,2266,111],{},[83,2268,114],{},[59,2270,2271,2273,2275,2277,2279],{},[83,2272,119],{},[83,2274,122],{},[83,2276,125],{},[83,2278,128],{},[83,2280,131],{},[59,2282,2283,2285,2287,2289,2291],{},[83,2284,136],{},[83,2286,139],{},[83,2288,142],{},[83,2290,145],{},[83,2292,148],{},[59,2294,2295,2297,2299,2301,2303],{},[83,2296,153],{},[83,2298,156],{},[83,2300,159],{},[83,2302,162],{},[83,2304,165],{},[59,2306,2307,2309,2311,2313,2315],{},[83,2308,170],{},[83,2310,173],{},[83,2312,176],{},[83,2314,179],{},[83,2316,182],{},[11,2318,185],{},[25,2320,189],{"id":188},[11,2322,192,2323,196],{},[40,2324,195],{},[11,2326,199],{},[25,2328,203],{"id":202},[11,2330,206],{},[53,2332,2333,2345],{},[56,2334,2335],{},[59,2336,2337,2339,2341,2343],{},[62,2338,215],{},[62,2340,218],{},[62,2342,221],{},[62,2344,224],{},[78,2346,2347,2357,2367],{},[59,2348,2349,2351,2353,2355],{},[83,2350,231],{},[83,2352,234],{},[83,2354,237],{},[83,2356,240],{},[59,2358,2359,2361,2363,2365],{},[83,2360,245],{},[83,2362,248],{},[83,2364,251],{},[83,2366,254],{},[59,2368,2369,2371,2373,2375],{},[83,2370,259],{},[83,2372,262],{},[83,2374,265],{},[83,2376,268],{},[11,2378,2379,274],{},[14,2380,273],{},[25,2382,278],{"id":277},[11,2384,281,2385,285],{},[14,2386,284],{},[11,2388,288,2389,292],{},[40,2390,291],{},[25,2392,296],{"id":295},[11,2394,299],{},[11,2396,2397,305,2399,309,2401,313],{},[40,2398,304],{},[40,2400,308],{},[40,2402,312],{},[11,2404,316],{},[53,2406,2407,2419],{},[56,2408,2409],{},[59,2410,2411,2413,2415,2417],{},[62,2412,325],{},[62,2414,328],{},[62,2416,331],{},[62,2418,334],{},[78,2420,2421,2431,2441,2451],{},[59,2422,2423,2425,2427,2429],{},[83,2424,119],{},[83,2426,343],{},[83,2428,346],{},[83,2430,349],{},[59,2432,2433,2435,2437,2439],{},[83,2434,153],{},[83,2436,356],{},[83,2438,343],{},[83,2440,361],{},[59,2442,2443,2445,2447,2449],{},[83,2444,170],{},[83,2446,368],{},[83,2448,371],{},[83,2450,374],{},[59,2452,2453,2455,2457,2459],{},[83,2454,379],{},[83,2456,382],{},[83,2458,385],{},[83,2460,388],{},[11,2462,391,2463,395,2465,400],{},[14,2464,394],{},[19,2466,399],{"href":398},[25,2468,404],{"id":403},[11,2470,407],{},[33,2472,2473,2477,2481],{},[36,2474,2475,415],{},[14,2476,414],{},[36,2478,2479,421],{},[14,2480,420],{},[36,2482,2483,427],{},[14,2484,426],{},[25,2486,431],{"id":430},[11,2488,2489,437],{},[14,2490,436],{},[11,2492,2493,443],{},[14,2494,442],{},[11,2496,2497,449,2499,400],{},[14,2498,448],{},[19,2500,453],{"href":452},[25,2502,457],{"id":456},[11,2504,460,2505,464],{},[19,2506,463],{"href":21},[11,2508,467],{},[11,2510,470],{},[25,2512,474],{"id":473},[476,2514,479],{"id":478},[11,2516,482],{},[476,2518,486],{"id":485},[11,2520,489],{},[476,2522,493],{"id":492},[11,2524,496],{},[476,2526,500],{"id":499},[11,2528,503],{},[476,2530,507],{"id":506},[11,2532,510],{},[476,2534,514],{"id":513},[11,2536,517],{},[25,2538,521],{"id":520},[11,2540,524,2541,529,2543,534],{},[19,2542,528],{"href":527},[19,2544,533],{"href":532},[25,2546,538],{"id":537},[33,2548,2549,2553,2557],{},[36,2550,2551],{},[19,2552,545],{"href":398},[36,2554,2555],{},[19,2556,453],{"href":452},[36,2558,2559],{},[19,2560,555],{"href":554},[11,2562,558,2563,565],{},[19,2564,564],{"href":561,"rel":2565},[563],{"title":567,"searchDepth":568,"depth":568,"links":2567},[2568,2569,2570,2571,2572,2573,2574,2575,2576,2584,2585],{"id":27,"depth":568,"text":28},{"id":188,"depth":568,"text":189},{"id":202,"depth":568,"text":203},{"id":277,"depth":568,"text":278},{"id":295,"depth":568,"text":296},{"id":403,"depth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kabels mag ik gebruiken in de badkamer? (AREI-volumes)","2026-03-09",{"articleId":2600,"locale":593,"slug":2601,"title":2602,"date":2603,"publishDate":2603},"smart-home-domotica-arei","domotica-arei","Smart Home en AREI: Waar moet je op letten bij domotica?","2026-06-09"]