[{"data":1,"prerenderedAt":1442},["ShallowReactive",2],{"blog-post-de-preflex-vs-freie-verlegung":3,"blog-alternates-preflex-vs-open-wiring":337},{"id":4,"title":5,"articleId":6,"body":7,"category":315,"date":316,"description":317,"extension":318,"lastUpdated":316,"locale":319,"meta":320,"navigation":321,"path":322,"publishDate":316,"readTime":323,"refreshInterval":324,"seo":325,"slug":326,"stem":327,"tags":328,"__hash__":336},"blog\u002Fblog\u002Fpreflex-vs-open-wiring.de.md","Preflex vs. freie Verlegung: Welche Kabelmethode für Ihr Projekt?","preflex-vs-open-wiring",{"type":8,"value":9,"toc":304},"minimark",[10,15,23,28,31,35,156,160,182,186,206,210,229,236,240,260,263,267,288,290],[11,12,14],"h1",{"id":13},"preflex-vs-freie-verlegung-welche-methode-passt-zu-ihrem-projekt","Preflex vs. freie Verlegung: Welche Methode passt zu Ihrem Projekt?",[16,17,18,22],"p",{},[19,20,21],"strong",{},"Kurzantwort:"," Preflex ist ein vorkonfektioniertes Leerrohr mit bereits eingezogenen Kabeln — ideal für Neubau, wo es direkt in den Beton eingegossen wird. Freie Verlegung (z. B. XVB auf Putz oder im Kabelkanal) eignet sich besser für Renovierungen, bei denen Schlitze und Leerrohre schwer nachzurüsten sind.",[24,25,27],"h2",{"id":26},"was-ist-preflex","Was ist Preflex?",[16,29,30],{},"Preflex ist ein flexibles Wellrohr (Leerrohr), in das werkseitig bereits die passenden Kabel eingezogen sind. In Belgien ist diese Methode bei Neubauten extrem verbreitet: Die Rohre werden in der Rohbauphase auf der Betondecke oder im Estrich verlegt und dann eingegossen. Dadurch sind die Kabel vollständig geschützt und bei Bedarf später austauschbar.",[24,32,34],{"id":33},"vergleich-preflex-safe-vs-normaler-preflex-vs-freie-verlegung","Vergleich: Preflex Safe vs. normaler Preflex vs. freie Verlegung",[36,37,38,57],"table",{},[39,40,41],"thead",{},[42,43,44,48,51,54],"tr",{},[45,46,47],"th",{},"Kriterium",[45,49,50],{},"Preflex Safe",[45,52,53],{},"Normaler Preflex",[45,55,56],{},"Freie Verlegung (XVB)",[58,59,60,77,93,109,124,140],"tbody",{},[42,61,62,68,71,74],{},[63,64,65],"td",{},[19,66,67],{},"Mantel",[63,69,70],{},"Halogenfrei (LSOH)",[63,72,73],{},"Standard-PVC",[63,75,76],{},"Kein Rohr, Kabel direkt",[42,78,79,84,87,90],{},[63,80,81],{},[19,82,83],{},"CPR-Brandschutzklasse",[63,85,86],{},"Cca-s1,d1,a1 (Kabel im Rohr)",[63,88,89],{},"Eca (Kabel im Rohr; die CPR-Klasse bezieht sich auf das Kabel, nicht auf das Rohr selbst)",[63,91,92],{},"XVB mit CPR-Kennzeichnung Cca-s1,d2,a1 (bei Neuinstallationen in bestimmten Verlegearten vorgeschrieben; ältere Bestände können noch als Eca klassifiziert sein)",[42,94,95,100,103,106],{},[63,96,97],{},[19,98,99],{},"Einsatzbereich",[63,101,102],{},"Neubau, öffentliche Gebäude",[63,104,105],{},"Neubau Wohnbau",[63,107,108],{},"Renovierung, Aufputz",[42,110,111,116,119,121],{},[63,112,113],{},[19,114,115],{},"Kabelwechsel möglich",[63,117,118],{},"Ja",[63,120,118],{},[63,122,123],{},"Nein (fest verlegt)",[42,125,126,131,134,137],{},[63,127,128],{},[19,129,130],{},"Kosten",[63,132,133],{},"Am höchsten",[63,135,136],{},"Mittel",[63,138,139],{},"Am günstigsten",[42,141,142,147,150,153],{},[63,143,144],{},[19,145,146],{},"AREI-Konformität",[63,148,149],{},"Alle Bereiche",[63,151,152],{},"Wohnbau erlaubt",[63,154,155],{},"Alle Bereiche (wenn Kabeltyp stimmt)",[24,157,159],{"id":158},"vorteile-von-preflex","Vorteile von Preflex",[161,162,163,170,176],"ul",{},[164,165,166,169],"li",{},[19,167,168],{},"Saubere Installation:"," Keine sichtbaren Kabel, alles verputzt oder eingegossen.",[164,171,172,175],{},[19,173,174],{},"Zukunftssicher:"," Kabel können nachträglich ausgetauscht oder ergänzt werden, ohne Wände aufzustemmen.",[164,177,178,181],{},[19,179,180],{},"Schutz:"," Das Rohr schützt vor mechanischer Beschädigung.",[24,183,185],{"id":184},"nachteile-von-preflex","Nachteile von Preflex",[161,187,188,194,200],{},[164,189,190,193],{},[19,191,192],{},"Teurer"," als direkte Kabelverlegung (Material + Arbeitsaufwand).",[164,195,196,199],{},[19,197,198],{},"Nur bei Neubau\u002FKernsanierung"," sinnvoll — bei einfacher Renovierung kaum nachzurüsten.",[164,201,202,205],{},[19,203,204],{},"Biegeradien"," beachten: Enge Kurven können das spätere Nachziehen erschweren.",[24,207,209],{"id":208},"was-sagt-das-arei","Was sagt das AREI?",[16,211,212,213,216,217,220,221,224,225,228],{},"Das AREI schreibt keine bestimmte Verlegemethode vor — beide sind erlaubt. Entscheidend ist die ",[19,214,215],{},"Brandschutzklasse"," (CPR-Verordnung): Einzeln verlegte Kabel müssen mindestens ",[19,218,219],{},"Eca"," aufweisen (Art. 5.2.7.2). In ",[19,222,223],{},"Bündeln, Hohlwänden und baulichen Hohlräumen"," ist mindestens ",[19,226,227],{},"Cca"," vorgeschrieben (Art. 5.2.7.3, Art. 4.3.3.5b). Achtung: Holzständerwände (bei Renovierungen häufig) zählen als baulicher Hohlraum!",[16,230,231,232,235],{},"Das Leerrohr darf maximal zu ",[19,233,234],{},"40 %"," mit Kabeln gefüllt sein (allgemeine Installationsregel nach den Regeln des Fachs), damit späteres Nachziehen möglich bleibt.",[24,237,239],{"id":238},"wann-welche-methode","Wann welche Methode?",[161,241,242,248,254],{},[164,243,244,247],{},[19,245,246],{},"Neubau"," → Preflex (Safe für höchsten Brandschutz)",[164,249,250,253],{},[19,251,252],{},"Renovierung"," → XVB-Kabel im Kabelkanal oder Aufputz",[164,255,256,259],{},[19,257,258],{},"Teilrenovierung"," → Kombination möglich (neue Kreise in Preflex, bestehende belassen)",[261,262],"hr",{},[24,264,266],{"id":265},"verwandte-artikel","Verwandte Artikel",[161,268,269,276,282],{},[164,270,271],{},[272,273,275],"a",{"href":274},"\u002Fde\u002Fblog\u002Farei-2026-aenderungen","Was ändert sich mit dem AREI 2026?",[164,277,278],{},[272,279,281],{"href":280},"\u002Fde\u002Fblog\u002Fbadezimmer-kabel-arei-zonen","Badezimmer-Elektrik: Zonen und Kabeltypen",[164,283,284],{},[272,285,287],{"href":286},"\u002Fde\u002Fblog\u002Faltbau-arei-part-8","Altbau und AREI Part 8",[261,289],{},[16,291,292],{},[293,294,295,296,299,300],"em",{},"Planen Sie Ihre Elektroinstallation normgerecht mit ",[19,297,298],{},"PlanElec"," — ob Neubau mit Preflex oder Renovierung mit freier Verlegung. Unser Tool erstellt automatisch das passende Eindrahtschema und den Situationsplan. ",[272,301,303],{"href":302},"\u002F","Jetzt kostenlos starten →",{"title":305,"searchDepth":306,"depth":306,"links":307},"",2,[308,309,310,311,312,313,314],{"id":26,"depth":306,"text":27},{"id":33,"depth":306,"text":34},{"id":158,"depth":306,"text":159},{"id":184,"depth":306,"text":185},{"id":208,"depth":306,"text":209},{"id":238,"depth":306,"text":239},{"id":265,"depth":306,"text":266},"faq","2026-03-27","Vergleich von Preflex-Leerrohren und freier Kabelverlegung in Belgien. Vorteile, Nachteile und AREI-Brandschutzklassen auf einen Blick.","md","de",{},true,"\u002Fblog\u002Fpreflex-vs-open-wiring.de","3 min",12,{"title":5,"description":317},"preflex-vs-freie-verlegung","blog\u002Fpreflex-vs-open-wiring.de",[329,330,331,332,333,334,335],"preflex","kabelverlegung","neubau","renovierung","AREI","brandschutz","XVB","Fw5Et1FtGKFVN_RqtcEmAbTZjTsWAyc-cl1RULUS-4c",[338,545,845,1145],{"id":4,"title":5,"articleId":6,"body":339,"category":315,"date":316,"description":317,"extension":318,"lastUpdated":316,"locale":319,"meta":542,"navigation":321,"path":322,"publishDate":316,"readTime":323,"refreshInterval":324,"seo":543,"slug":326,"stem":327,"tags":544,"__hash__":336},{"type":8,"value":340,"toc":533},[341,343,347,349,351,353,441,443,457,459,473,475,485,489,491,505,507,509,523,525],[11,342,14],{"id":13},[16,344,345,22],{},[19,346,21],{},[24,348,27],{"id":26},[16,350,30],{},[24,352,34],{"id":33},[36,354,355,367],{},[39,356,357],{},[42,358,359,361,363,365],{},[45,360,47],{},[45,362,50],{},[45,364,53],{},[45,366,56],{},[58,368,369,381,393,405,417,429],{},[42,370,371,375,377,379],{},[63,372,373],{},[19,374,67],{},[63,376,70],{},[63,378,73],{},[63,380,76],{},[42,382,383,387,389,391],{},[63,384,385],{},[19,386,83],{},[63,388,86],{},[63,390,89],{},[63,392,92],{},[42,394,395,399,401,403],{},[63,396,397],{},[19,398,99],{},[63,400,102],{},[63,402,105],{},[63,404,108],{},[42,406,407,411,413,415],{},[63,408,409],{},[19,410,115],{},[63,412,118],{},[63,414,118],{},[63,416,123],{},[42,418,419,423,425,427],{},[63,420,421],{},[19,422,130],{},[63,424,133],{},[63,426,136],{},[63,428,139],{},[42,430,431,435,437,439],{},[63,432,433],{},[19,434,146],{},[63,436,149],{},[63,438,152],{},[63,440,155],{},[24,442,159],{"id":158},[161,444,445,449,453],{},[164,446,447,169],{},[19,448,168],{},[164,450,451,175],{},[19,452,174],{},[164,454,455,181],{},[19,456,180],{},[24,458,185],{"id":184},[161,460,461,465,469],{},[164,462,463,193],{},[19,464,192],{},[164,466,467,199],{},[19,468,198],{},[164,470,471,205],{},[19,472,204],{},[24,474,209],{"id":208},[16,476,212,477,216,479,220,481,224,483,228],{},[19,478,215],{},[19,480,219],{},[19,482,223],{},[19,484,227],{},[16,486,231,487,235],{},[19,488,234],{},[24,490,239],{"id":238},[161,492,493,497,501],{},[164,494,495,247],{},[19,496,246],{},[164,498,499,253],{},[19,500,252],{},[164,502,503,259],{},[19,504,258],{},[261,506],{},[24,508,266],{"id":265},[161,510,511,515,519],{},[164,512,513],{},[272,514,275],{"href":274},[164,516,517],{},[272,518,281],{"href":280},[164,520,521],{},[272,522,287],{"href":286},[261,524],{},[16,526,527],{},[293,528,295,529,299,531],{},[19,530,298],{},[272,532,303],{"href":302},{"title":305,"searchDepth":306,"depth":306,"links":534},[535,536,537,538,539,540,541],{"id":26,"depth":306,"text":27},{"id":33,"depth":306,"text":34},{"id":158,"depth":306,"text":159},{"id":184,"depth":306,"text":185},{"id":208,"depth":306,"text":209},{"id":238,"depth":306,"text":239},{"id":265,"depth":306,"text":266},{},{"title":5,"description":317},[329,330,331,332,333,334,335],{"id":546,"title":547,"articleId":6,"body":548,"category":315,"date":316,"description":833,"extension":318,"lastUpdated":316,"locale":834,"meta":835,"navigation":321,"path":836,"publishDate":316,"readTime":323,"refreshInterval":324,"seo":837,"slug":6,"stem":838,"tags":839,"__hash__":844},"blog\u002Fblog\u002Fpreflex-vs-open-wiring.en.md","Preflex vs. Open Wiring: Which Cable Method for Your Project?",{"type":8,"value":549,"toc":824},[550,554,560,564,567,571,685,689,709,713,733,737,754,761,765,785,787,791,811,813],[11,551,553],{"id":552},"preflex-vs-open-wiring-which-method-suits-your-project","Preflex vs. Open Wiring: Which Method Suits Your Project?",[16,555,556,559],{},[19,557,558],{},"Short answer:"," Preflex is a pre-assembled conduit with cables already pulled through — ideal for new builds, where it is cast directly into concrete. Open wiring (e.g., XVB surface-mounted or in cable trunking) is better suited for renovations, where conduits are difficult to retrofit.",[24,561,563],{"id":562},"what-is-preflex","What Is Preflex?",[16,565,566],{},"Preflex is a flexible corrugated tube (conduit) with the appropriate cables already pulled through at the factory. In Belgium, this method is extremely popular for new construction: the conduits are laid during the shell construction phase on the concrete slab or in the screed, then cast in. This way, cables are fully protected and can be replaced later if needed.",[24,568,570],{"id":569},"comparison-preflex-safe-vs-standard-preflex-vs-open-wiring","Comparison: Preflex Safe vs. Standard Preflex vs. Open Wiring",[36,572,573,588],{},[39,574,575],{},[42,576,577,580,582,585],{},[45,578,579],{},"Criterion",[45,581,50],{},[45,583,584],{},"Standard Preflex",[45,586,587],{},"Open Wiring (XVB)",[58,589,590,606,622,638,653,669],{},[42,591,592,597,600,603],{},[63,593,594],{},[19,595,596],{},"Sheath",[63,598,599],{},"Halogen-free (LSOH)",[63,601,602],{},"Standard PVC",[63,604,605],{},"No conduit, cable direct",[42,607,608,613,616,619],{},[63,609,610],{},[19,611,612],{},"CPR fire class",[63,614,615],{},"Cca-s1,d1,a1 (cable in conduit)",[63,617,618],{},"Eca (cable in conduit; the CPR class refers to the cable, not the conduit itself)",[63,620,621],{},"XVB with CPR marking Cca-s1,d2,a1 (required for new installations in certain installation methods; older stock may still be classified as Eca)",[42,623,624,629,632,635],{},[63,625,626],{},[19,627,628],{},"Application",[63,630,631],{},"New build, public buildings",[63,633,634],{},"New build residential",[63,636,637],{},"Renovation, surface mount",[42,639,640,645,648,650],{},[63,641,642],{},[19,643,644],{},"Cable replacement",[63,646,647],{},"Yes",[63,649,647],{},[63,651,652],{},"No (permanently installed)",[42,654,655,660,663,666],{},[63,656,657],{},[19,658,659],{},"Cost",[63,661,662],{},"Highest",[63,664,665],{},"Medium",[63,667,668],{},"Lowest",[42,670,671,676,679,682],{},[63,672,673],{},[19,674,675],{},"AREI compliance",[63,677,678],{},"All applications",[63,680,681],{},"Residential allowed",[63,683,684],{},"All applications (if cable type correct)",[24,686,688],{"id":687},"advantages-of-preflex","Advantages of Preflex",[161,690,691,697,703],{},[164,692,693,696],{},[19,694,695],{},"Clean installation:"," No visible cables, everything is concealed or cast in.",[164,698,699,702],{},[19,700,701],{},"Future-proof:"," Cables can be replaced or added later without breaking open walls.",[164,704,705,708],{},[19,706,707],{},"Protection:"," The conduit protects against mechanical damage.",[24,710,712],{"id":711},"disadvantages-of-preflex","Disadvantages of Preflex",[161,714,715,721,727],{},[164,716,717,720],{},[19,718,719],{},"More expensive"," than direct cable installation (materials + labour).",[164,722,723,726],{},[19,724,725],{},"Only practical for new builds\u002Fmajor renovations"," — difficult to retrofit in simple renovations.",[164,728,729,732],{},[19,730,731],{},"Bending radii"," must be respected: tight curves make future cable pulling difficult.",[24,734,736],{"id":735},"what-does-the-areirgie-say","What Does the AREI\u002FRGIE Say?",[16,738,739,740,743,744,746,747,750,751,753],{},"The AREI does not prescribe a specific installation method — both are permitted. What matters is the ",[19,741,742],{},"fire reaction class"," (CPR regulation): individually installed cables require at least ",[19,745,219],{}," (Art. 5.2.7.2). In ",[19,748,749],{},"bundles, hollow walls, and building cavities",", at least ",[19,752,227],{}," is required (Art. 5.2.7.3, Art. 4.3.3.5b). Note: timber-framed walls (common in renovations) count as building cavities!",[16,755,756,757,760],{},"The conduit may be filled to a maximum of ",[19,758,759],{},"40%"," with cables (general installation rule per trade standards), so that future cable pulling remains possible.",[24,762,764],{"id":763},"when-to-use-which-method","When to Use Which Method?",[161,766,767,773,779],{},[164,768,769,772],{},[19,770,771],{},"New build"," → Preflex (Safe for highest fire protection)",[164,774,775,778],{},[19,776,777],{},"Renovation"," → XVB cable in trunking or surface-mounted",[164,780,781,784],{},[19,782,783],{},"Partial renovation"," → Combination possible (new circuits in Preflex, existing ones kept)",[261,786],{},[24,788,790],{"id":789},"related-articles","Related Articles",[161,792,793,799,805],{},[164,794,795],{},[272,796,798],{"href":797},"\u002Fen\u002Fblog\u002Farei-2026-changes","What Changes with the AREI 2026?",[164,800,801],{},[272,802,804],{"href":803},"\u002Fen\u002Fblog\u002Fbathroom-cables-arei-zones","Bathroom Electrics: Zones and Cable Types",[164,806,807],{},[272,808,810],{"href":809},"\u002Fen\u002Fblog\u002Fold-building-arei-part-8","Old Buildings and AREI Part 8",[261,812],{},[16,814,815],{},[293,816,817,818,820,821],{},"Plan your electrical installation to code with ",[19,819,298],{}," — whether it's a new build with Preflex or a renovation with open wiring. Our tool automatically creates the appropriate single-line diagram and situation plan. ",[272,822,823],{"href":302},"Start for free →",{"title":305,"searchDepth":306,"depth":306,"links":825},[826,827,828,829,830,831,832],{"id":562,"depth":306,"text":563},{"id":569,"depth":306,"text":570},{"id":687,"depth":306,"text":688},{"id":711,"depth":306,"text":712},{"id":735,"depth":306,"text":736},{"id":763,"depth":306,"text":764},{"id":789,"depth":306,"text":790},"Comparison of Preflex conduit systems and open cable installation in Belgium. Advantages, disadvantages, and AREI\u002FRGIE fire safety classes at a glance.","en",{},"\u002Fblog\u002Fpreflex-vs-open-wiring.en",{"title":547,"description":833},"blog\u002Fpreflex-vs-open-wiring.en",[329,840,841,842,333,843,335],"wiring","new build","renovation","fire safety","5nT_OFwYA6MxQEZqYWSkLzdfJ5dHEqCKpd_JLK-OqJA",{"id":846,"title":847,"articleId":6,"body":848,"category":315,"date":316,"description":1131,"extension":318,"lastUpdated":316,"locale":1132,"meta":1133,"navigation":321,"path":1134,"publishDate":316,"readTime":323,"refreshInterval":324,"seo":1135,"slug":1136,"stem":1137,"tags":1138,"__hash__":1144},"blog\u002Fblog\u002Fpreflex-vs-open-wiring.fr.md","Preflex vs. pose libre : Quelle méthode de câblage pour votre projet ?",{"type":8,"value":849,"toc":1122},[850,854,860,864,867,871,984,988,1008,1012,1032,1036,1053,1059,1063,1083,1085,1089,1109,1111],[11,851,853],{"id":852},"preflex-vs-pose-libre-quelle-méthode-convient-à-votre-projet","Preflex vs. pose libre : Quelle méthode convient à votre projet ?",[16,855,856,859],{},[19,857,858],{},"Réponse courte :"," Le Preflex est une gaine préfabriquée avec des câbles déjà tirés — idéal pour la construction neuve, où il est directement coulé dans le béton. La pose libre (par ex. XVB en apparent ou en goulotte) convient mieux aux rénovations, où les gaines sont difficiles à installer après coup.",[24,861,863],{"id":862},"quest-ce-que-le-preflex","Qu'est-ce que le Preflex ?",[16,865,866],{},"Le Preflex est un tube annelé flexible (gaine d'attente) dans lequel les câbles appropriés sont déjà tirés en usine. En Belgique, cette méthode est extrêmement répandue dans la construction neuve : les gaines sont posées pendant la phase de gros œuvre sur la dalle en béton ou dans la chape, puis coulées. Les câbles sont ainsi entièrement protégés et remplaçables ultérieurement si nécessaire.",[24,868,870],{"id":869},"comparaison-preflex-safe-vs-preflex-normal-vs-pose-libre","Comparaison : Preflex Safe vs. Preflex normal vs. pose libre",[36,872,873,888],{},[39,874,875],{},[42,876,877,880,882,885],{},[45,878,879],{},"Critère",[45,881,50],{},[45,883,884],{},"Preflex normal",[45,886,887],{},"Pose libre (XVB)",[58,889,890,906,922,937,952,968],{},[42,891,892,897,900,903],{},[63,893,894],{},[19,895,896],{},"Gaine",[63,898,899],{},"Sans halogène (LSOH)",[63,901,902],{},"PVC standard",[63,904,905],{},"Pas de gaine, câble direct",[42,907,908,913,916,919],{},[63,909,910],{},[19,911,912],{},"Classe CPR",[63,914,915],{},"Cca-s1,d1,a1 (câble dans conduit)",[63,917,918],{},"Eca (câble dans conduit ; la classe CPR se réfère au câble, pas au conduit lui-même)",[63,920,921],{},"XVB avec marquage CPR Cca-s1,d2,a1 (exigé dans certains modes de pose pour les nouvelles installations ; les stocks anciens peuvent encore être classés Eca)",[42,923,924,928,931,934],{},[63,925,926],{},[19,927,628],{},[63,929,930],{},"Neuf, bâtiments publics",[63,932,933],{},"Neuf résidentiel",[63,935,936],{},"Rénovation, apparent",[42,938,939,944,947,949],{},[63,940,941],{},[19,942,943],{},"Remplacement câble",[63,945,946],{},"Oui",[63,948,946],{},[63,950,951],{},"Non (installation fixe)",[42,953,954,959,962,965],{},[63,955,956],{},[19,957,958],{},"Coût",[63,960,961],{},"Le plus élevé",[63,963,964],{},"Moyen",[63,966,967],{},"Le plus bas",[42,969,970,975,978,981],{},[63,971,972],{},[19,973,974],{},"Conformité RGIE",[63,976,977],{},"Toutes applications",[63,979,980],{},"Résidentiel autorisé",[63,982,983],{},"Toutes applications (si type de câble correct)",[24,985,987],{"id":986},"avantages-du-preflex","Avantages du Preflex",[161,989,990,996,1002],{},[164,991,992,995],{},[19,993,994],{},"Installation soignée :"," Pas de câbles visibles, tout est encastré ou coulé.",[164,997,998,1001],{},[19,999,1000],{},"Pérennité :"," Les câbles peuvent être remplacés ou ajoutés ultérieurement sans casser les murs.",[164,1003,1004,1007],{},[19,1005,1006],{},"Protection :"," La gaine protège contre les dommages mécaniques.",[24,1009,1011],{"id":1010},"inconvénients-du-preflex","Inconvénients du Preflex",[161,1013,1014,1020,1026],{},[164,1015,1016,1019],{},[19,1017,1018],{},"Plus cher"," que la pose directe de câbles (matériel + main-d'œuvre).",[164,1021,1022,1025],{},[19,1023,1024],{},"Uniquement en construction neuve\u002Frénovation lourde"," — difficilement installable lors d'une simple rénovation.",[164,1027,1028,1031],{},[19,1029,1030],{},"Rayons de courbure"," à respecter : des courbes trop serrées compliquent le retirage ultérieur.",[24,1033,1035],{"id":1034},"que-dit-le-rgie","Que dit le RGIE ?",[16,1037,1038,1039,1042,1043,1045,1046,1049,1050,1052],{},"Le RGIE ne prescrit pas de méthode d'installation particulière — les deux sont autorisées. Ce qui compte, c'est la ",[19,1040,1041],{},"classe de réaction au feu"," (règlement CPR) : les câbles posés individuellement doivent avoir au minimum ",[19,1044,219],{}," (art. 5.2.7.2). En ",[19,1047,1048],{},"faisceaux, cloisons creuses et cavités constructives",", la classe minimale ",[19,1051,227],{}," est exigée (art. 5.2.7.3, art. 4.3.3.5b). Attention : les murs à ossature bois (fréquents en rénovation) comptent comme cavité constructive !",[16,1054,1055,1056,1058],{},"Le conduit ne doit pas être rempli à plus de ",[19,1057,234],{}," par des câbles (règle d'installation générale selon les règles de l'art), afin de permettre le retirage ultérieur.",[24,1060,1062],{"id":1061},"quelle-méthode-choisir","Quelle méthode choisir ?",[161,1064,1065,1071,1077],{},[164,1066,1067,1070],{},[19,1068,1069],{},"Construction neuve"," → Preflex (Safe pour la meilleure protection incendie)",[164,1072,1073,1076],{},[19,1074,1075],{},"Rénovation"," → Câble XVB en goulotte ou en apparent",[164,1078,1079,1082],{},[19,1080,1081],{},"Rénovation partielle"," → Combinaison possible (nouveaux circuits en Preflex, existants conservés)",[261,1084],{},[24,1086,1088],{"id":1087},"articles-connexes","Articles connexes",[161,1090,1091,1097,1103],{},[164,1092,1093],{},[272,1094,1096],{"href":1095},"\u002Ffr\u002Fblog\u002Frgie-2026-changements","Que change le RGIE 2026 ?",[164,1098,1099],{},[272,1100,1102],{"href":1101},"\u002Ffr\u002Fblog\u002Fsalle-de-bain-cables-rgie-zones","Électricité salle de bain : Zones et types de câbles",[164,1104,1105],{},[272,1106,1108],{"href":1107},"\u002Ffr\u002Fblog\u002Fancien-rgie-part-8","Ancien bâtiment et RGIE Partie 8",[261,1110],{},[16,1112,1113],{},[293,1114,1115,1116,1118,1119],{},"Planifiez votre installation électrique conforme aux normes avec ",[19,1117,298],{}," — que ce soit en construction neuve avec Preflex ou en rénovation avec pose libre. Notre outil crée automatiquement le schéma unifilaire et le plan de situation adaptés. ",[272,1120,1121],{"href":302},"Commencer gratuitement →",{"title":305,"searchDepth":306,"depth":306,"links":1123},[1124,1125,1126,1127,1128,1129,1130],{"id":862,"depth":306,"text":863},{"id":869,"depth":306,"text":870},{"id":986,"depth":306,"text":987},{"id":1010,"depth":306,"text":1011},{"id":1034,"depth":306,"text":1035},{"id":1061,"depth":306,"text":1062},{"id":1087,"depth":306,"text":1088},"Comparaison des gaines Preflex et de la pose libre de câbles en Belgique. Avantages, inconvénients et classes de réaction au feu RGIE.","fr",{},"\u002Fblog\u002Fpreflex-vs-open-wiring.fr",{"title":847,"description":1131},"preflex-vs-pose-libre","blog\u002Fpreflex-vs-open-wiring.fr",[329,1139,1140,1141,1142,1143,335],"câblage","construction neuve","rénovation","RGIE","sécurité incendie","0E6RS7hErpFqgjK6GK9XE1Lgj-QIWpYerJsUJqPAZRY",{"id":1146,"title":1147,"articleId":6,"body":1148,"category":315,"date":316,"description":1429,"extension":318,"lastUpdated":316,"locale":1430,"meta":1431,"navigation":321,"path":1432,"publishDate":316,"readTime":323,"refreshInterval":324,"seo":1433,"slug":1434,"stem":1435,"tags":1436,"__hash__":1441},"blog\u002Fblog\u002Fpreflex-vs-open-wiring.nl.md","Preflex vs. vrije bedrading: Welke kabelmethode voor uw project?",{"type":8,"value":1149,"toc":1420},[1150,1154,1160,1164,1167,1171,1282,1286,1306,1310,1330,1334,1351,1357,1361,1381,1383,1387,1407,1409],[11,1151,1153],{"id":1152},"preflex-vs-vrije-bedrading-welke-methode-past-bij-uw-project","Preflex vs. vrije bedrading: Welke methode past bij uw project?",[16,1155,1156,1159],{},[19,1157,1158],{},"Kort antwoord:"," Preflex is een voorgeconfectioneerde wachtbuis met reeds ingetrokken kabels — ideaal voor nieuwbouw, waar het direct in het beton wordt gegoten. Vrije bedrading (bijv. XVB opbouw of in kabelgoot) is beter geschikt voor renovaties, waar leidingen moeilijk achteraf te plaatsen zijn.",[24,1161,1163],{"id":1162},"wat-is-preflex","Wat is Preflex?",[16,1165,1166],{},"Preflex is een flexibele golfbuis (wachtbuis), waarin in de fabriek de passende kabels al zijn ingetrokken. In België is deze methode bij nieuwbouw uiterst populair: de buizen worden tijdens de ruwbouwfase op de betonplaat of in de dekvloer gelegd en vervolgens ingegoten. Zo zijn de kabels volledig beschermd en later vervangbaar indien nodig.",[24,1168,1170],{"id":1169},"vergelijking-preflex-safe-vs-gewone-preflex-vs-vrije-bedrading","Vergelijking: Preflex Safe vs. gewone Preflex vs. vrije bedrading",[36,1172,1173,1188],{},[39,1174,1175],{},[42,1176,1177,1180,1182,1185],{},[45,1178,1179],{},"Criterium",[45,1181,50],{},[45,1183,1184],{},"Gewone Preflex",[45,1186,1187],{},"Vrije bedrading (XVB)",[58,1189,1190,1205,1221,1237,1251,1266],{},[42,1191,1192,1196,1199,1202],{},[63,1193,1194],{},[19,1195,67],{},[63,1197,1198],{},"Halogeenvrij (LSOH)",[63,1200,1201],{},"Standaard PVC",[63,1203,1204],{},"Geen buis, kabel direct",[42,1206,1207,1212,1215,1218],{},[63,1208,1209],{},[19,1210,1211],{},"CPR-brandklasse",[63,1213,1214],{},"Cca-s1,d1,a1 (kabel in buis)",[63,1216,1217],{},"Eca (kabel in buis; de CPR-klasse verwijst naar de kabel, niet naar de buis zelf)",[63,1219,1220],{},"XVB met CPR-markering Cca-s1,d2,a1 (bij nieuwbouwinstallaties in bepaalde plaatsingswijzen voorgeschreven; oudere voorraad kan nog als Eca geclassificeerd zijn)",[42,1222,1223,1228,1231,1234],{},[63,1224,1225],{},[19,1226,1227],{},"Toepassing",[63,1229,1230],{},"Nieuwbouw, openbare gebouwen",[63,1232,1233],{},"Nieuwbouw woningbouw",[63,1235,1236],{},"Renovatie, opbouw",[42,1238,1239,1244,1246,1248],{},[63,1240,1241],{},[19,1242,1243],{},"Kabel vervangen mogelijk",[63,1245,118],{},[63,1247,118],{},[63,1249,1250],{},"Nee (vast geïnstalleerd)",[42,1252,1253,1257,1260,1263],{},[63,1254,1255],{},[19,1256,130],{},[63,1258,1259],{},"Hoogst",[63,1261,1262],{},"Gemiddeld",[63,1264,1265],{},"Laagst",[42,1267,1268,1273,1276,1279],{},[63,1269,1270],{},[19,1271,1272],{},"AREI-conform",[63,1274,1275],{},"Alle toepassingen",[63,1277,1278],{},"Woningbouw toegelaten",[63,1280,1281],{},"Alle toepassingen (mits juist kabeltype)",[24,1283,1285],{"id":1284},"voordelen-van-preflex","Voordelen van Preflex",[161,1287,1288,1294,1300],{},[164,1289,1290,1293],{},[19,1291,1292],{},"Nette installatie:"," Geen zichtbare kabels, alles ingewerkt of ingegoten.",[164,1295,1296,1299],{},[19,1297,1298],{},"Toekomstbestendig:"," Kabels kunnen later vervangen of toegevoegd worden zonder muren open te breken.",[164,1301,1302,1305],{},[19,1303,1304],{},"Bescherming:"," De buis beschermt tegen mechanische schade.",[24,1307,1309],{"id":1308},"nadelen-van-preflex","Nadelen van Preflex",[161,1311,1312,1318,1324],{},[164,1313,1314,1317],{},[19,1315,1316],{},"Duurder"," dan directe kabelinstallatie (materiaal + arbeidskosten).",[164,1319,1320,1323],{},[19,1321,1322],{},"Alleen bij nieuwbouw\u002Ftotaalrenovatie"," zinvol — bij eenvoudige renovatie nauwelijks achteraf plaatsbaar.",[164,1325,1326,1329],{},[19,1327,1328],{},"Buigstralen"," respecteren: te scherpe bochten bemoeilijken het latere naftrekken.",[24,1331,1333],{"id":1332},"wat-zegt-het-arei","Wat zegt het AREI?",[16,1335,1336,1337,1340,1341,1343,1344,1347,1348,1350],{},"Het AREI schrijft geen specifieke installatiemethode voor — beide zijn toegelaten. Bepalend is de ",[19,1338,1339],{},"brandveiligheidsklasse"," (CPR-verordening): Afzonderlijk geplaatste kabels moeten minstens ",[19,1342,219],{}," hebben (Art. 5.2.7.2). In ",[19,1345,1346],{},"bundels, holle wanden en bouwkundige holle ruimtes"," is minstens ",[19,1349,227],{}," voorgeschreven (Art. 5.2.7.3, Art. 4.3.3.5b). Let op: houtskeletwanden (bij renovaties veel voorkomend) gelden als bouwkundige holle ruimte!",[16,1352,1353,1354,1356],{},"De buis mag maximaal ",[19,1355,759],{}," met kabels gevuld zijn (algemene installatieregel volgens de regels van het vak), zodat later naftrekken mogelijk blijft.",[24,1358,1360],{"id":1359},"wanneer-welke-methode","Wanneer welke methode?",[161,1362,1363,1369,1375],{},[164,1364,1365,1368],{},[19,1366,1367],{},"Nieuwbouw"," → Preflex (Safe voor hoogste brandveiligheid)",[164,1370,1371,1374],{},[19,1372,1373],{},"Renovatie"," → XVB-kabel in kabelgoot of opbouw",[164,1376,1377,1380],{},[19,1378,1379],{},"Gedeeltelijke renovatie"," → Combinatie mogelijk (nieuwe kringen in Preflex, bestaande behouden)",[261,1382],{},[24,1384,1386],{"id":1385},"gerelateerde-artikelen","Gerelateerde artikelen",[161,1388,1389,1395,1401],{},[164,1390,1391],{},[272,1392,1394],{"href":1393},"\u002Fblog\u002Farei-2026-wijzigingen","Wat verandert er met het AREI 2026?",[164,1396,1397],{},[272,1398,1400],{"href":1399},"\u002Fblog\u002Fbadkamer-kabels-arei-zones","Badkamer-elektriciteit: Zones en kabeltypes",[164,1402,1403],{},[272,1404,1406],{"href":1405},"\u002Fblog\u002Foud-arei-part-8","Oudere installaties en AREI Part 8",[261,1408],{},[16,1410,1411],{},[293,1412,1413,1414,1416,1417],{},"Plan uw elektrische installatie normconform met ",[19,1415,298],{}," — of het nu nieuwbouw met Preflex is of een renovatie met vrije bedrading. Onze tool maakt automatisch het juiste éénlijnschema en situatieschema. ",[272,1418,1419],{"href":302},"Nu gratis starten →",{"title":305,"searchDepth":306,"depth":306,"links":1421},[1422,1423,1424,1425,1426,1427,1428],{"id":1162,"depth":306,"text":1163},{"id":1169,"depth":306,"text":1170},{"id":1284,"depth":306,"text":1285},{"id":1308,"depth":306,"text":1309},{"id":1332,"depth":306,"text":1333},{"id":1359,"depth":306,"text":1360},{"id":1385,"depth":306,"text":1386},"Vergelijking van Preflex-leidingen en vrije kabelinstallatie in België. Voordelen, nadelen en AREI-brandveiligheidsklassen in een overzicht.","nl",{},"\u002Fblog\u002Fpreflex-vs-open-wiring.nl",{"title":1147,"description":1429},"preflex-vs-vrije-bedrading","blog\u002Fpreflex-vs-open-wiring.nl",[329,1437,1438,1439,333,1440,335],"bedrading","nieuwbouw","renovatie","brandveiligheid","e3QQejGeOXOR4swzoaHbRX3YIZ75oRikmp_4yXSuvPU",1775151657845]