[{"data":1,"prerenderedAt":1403},["ShallowReactive",2],{"blog-post-de-erdung-tt-tns-belgien":3,"blog-alternates-earthing-tt-vs-tns":330},{"id":4,"title":5,"articleId":6,"body":7,"category":310,"date":311,"description":312,"extension":313,"lastUpdated":311,"locale":314,"meta":315,"navigation":316,"path":317,"publishDate":311,"readTime":318,"refreshInterval":319,"seo":320,"slug":321,"stem":322,"tags":323,"__hash__":329},"blog\u002Fblog\u002Fearthing-tt-vs-tns.de.md","Erdung in Belgien: TT- vs. TN-S-System erklärt","earthing-tt-vs-tns",{"type":8,"value":9,"toc":298},"minimark",[10,15,23,28,35,39,46,50,164,168,230,234,249,252,265,269,276,280,283,287],[11,12,14],"h1",{"id":13},"erdung-in-belgien-tt-vs-tn-s","Erdung in Belgien: TT vs. TN-S",[16,17,18,22],"p",{},[19,20,21],"strong",{},"In Belgien ist das TT-System der Standard für Wohninstallationen."," Dabei erhält jedes Gebäude einen eigenen Erdspieß (Erder), der unabhängig vom Versorgungsnetz die Erdung sicherstellt. Das TN-S-System, bei dem der Schutzleiter vom Netzbetreiber mitgeliefert wird, kommt vor allem bei Neubauten und Industriegebäuden zum Einsatz.",[24,25,27],"h2",{"id":26},"was-ist-ein-tt-system","Was ist ein TT-System?",[16,29,30,31,34],{},"Beim TT-System (Terra-Terra) hat das Versorgungsnetz seinen eigenen Erder beim Transformator, und die Verbraucheranlage hat einen ",[19,32,33],{},"separaten, lokalen Erder"," (typischerweise ein Erdspieß oder Fundamenterder). Der Schutzleiter (PE) ist nicht mit dem Neutralleiter des Netzes verbunden.",[24,36,38],{"id":37},"was-ist-ein-tn-s-system","Was ist ein TN-S-System?",[16,40,41,42,45],{},"Beim TN-S-System (Terra-Neutral-Separé) wird der Schutzleiter (PE) vom Netzbetreiber ab dem Transformator ",[19,43,44],{},"separat vom Neutralleiter (N)"," geführt. Die Erdung erfolgt über die Netzverbindung, nicht über einen lokalen Erder.",[24,47,49],{"id":48},"vergleichstabelle","Vergleichstabelle",[51,52,53,69],"table",{},[54,55,56],"thead",{},[57,58,59,63,66],"tr",{},[60,61,62],"th",{},"Eigenschaft",[60,64,65],{},"TT-System",[60,67,68],{},"TN-S-System",[70,71,72,86,99,112,125,138,151],"tbody",{},[57,73,74,80,83],{},[75,76,77],"td",{},[19,78,79],{},"Erdungsquelle",[75,81,82],{},"Eigener Erdspieß\u002FFundamenterder",[75,84,85],{},"Schutzleiter vom Netzbetreiber",[57,87,88,93,96],{},[75,89,90],{},[19,91,92],{},"Verbreitung in Belgien",[75,94,95],{},"Standard (Bestand + Neubau)",[75,97,98],{},"Neubauten, Industrie",[57,100,101,106,109],{},[75,102,103],{},[19,104,105],{},"RCD-Pflicht",[75,107,108],{},"300 mA Haupt-RCD + 30 mA Gruppen-RCDs für Steckdosen\u002Fbesondere Räume (Art. 4.2.4.3)",[75,110,111],{},"Seit AREI 2020: 30 mA RCD für Steckdosenstromkreise ebenfalls Pflicht (Art. 4.2.4.3)",[57,113,114,119,122],{},[75,115,116],{},[19,117,118],{},"Erdungswiderstand",[75,120,121],{},"Max. 100 Ω absoluter Grenzwert (Art. 4.2.3.2); 30 Ω ist regulatorische Schwelle (Art. 4.2.4.3_b) — bei Überschreitung zusätzliche RCDs erforderlich",[75,123,124],{},"Vom Netzbetreiber garantiert",[57,126,127,132,135],{},[75,128,129],{},[19,130,131],{},"Vorteil",[75,133,134],{},"Unabhängig vom Netz",[75,136,137],{},"Zuverlässigere Erdung",[57,139,140,145,148],{},[75,141,142],{},[19,143,144],{},"Nachteil",[75,146,147],{},"Erdspieß muss gewartet werden",[75,149,150],{},"Abhängig vom Netzbetreiber",[57,152,153,158,161],{},[75,154,155],{},[19,156,157],{},"Fehlerstromabschaltung",[75,159,160],{},"Nur über RCD möglich",[75,162,163],{},"Auch über Sicherung möglich",[24,165,167],{"id":166},"arei-anforderungen","AREI-Anforderungen",[51,169,170,180],{},[54,171,172],{},[57,173,174,177],{},[60,175,176],{},"AREI Artikel",[60,178,179],{},"Anforderung",[70,181,182,190,198,206,214,222],{},[57,183,184,187],{},[75,185,186],{},"Art. 4.2.3.2",[75,188,189],{},"Erdungswiderstand in hauswirtschaftlichen Anlagen muss unter 100 Ω liegen (absoluter Grenzwert)",[57,191,192,195],{},[75,193,194],{},"Art. 4.2.4.3_b",[75,196,197],{},"30 Ω ist regulatorische Schwelle: bei Überschreitung sind mindestens zwei 30-mA-RCDs mit je max. 16 Steckdosen erforderlich",[57,199,200,203],{},[75,201,202],{},"Art. 4.2.3.4_c",[75,204,205],{},"Formel R_E ≤ U_L \u002F I_A — bei 300 mA und U_L = 50 V ergibt sich max. ~166 Ω",[57,207,208,211],{},[75,209,210],{},"Part 6, Art. 6.4.6",[75,212,213],{},"Erdungsanlage muss regelmäßig geprüft werden (periodische Kontrolle)",[57,215,216,219],{},[75,217,218],{},"Art. 4.2.4.3",[75,220,221],{},"RCD (Fehlerstromschutz) ist Pflicht — bei TT und seit AREI 2020 auch bei TN-S für Steckdosenstromkreise",[57,223,224,227],{},[75,225,226],{},"Art. 9.1",[75,228,229],{},"Art des Erdungssystems muss dokumentiert werden (Dokumentationspflichten)",[24,231,233],{"id":232},"erdspieß-prüfen","Erdspieß prüfen",[16,235,236,237,240,241,244,245,248],{},"Beim TT-System muss der Erdungswiderstand bei jeder ",[19,238,239],{},"Elektrokontrolle (Keuring)"," gemessen werden. AREI Art. 4.2.3.2 legt für hauswirtschaftliche Anlagen einen absoluten Grenzwert von ",[19,242,243],{},"100 Ω"," fest. Art. 4.2.3.4_c definiert die Formel R_E ≤ U_L \u002F I_A (bei 300 mA Haupt-RCD und U_L = 50 V ergibt sich max. ~166 Ω). Der Wert ",[19,246,247],{},"30 Ω"," ist eine regulatorische Schwelle (Art. 4.2.4.3_b): Bei Überschreitung schreibt das AREI zusätzliche 30-mA-RCDs vor. Ist der Widerstand zu hoch, kann ein zusätzlicher Erdspieß oder ein Tiefenerder erforderlich sein.",[16,250,251],{},"Typische Ursachen für zu hohen Erdungswiderstand:",[253,254,255,259,262],"ul",{},[256,257,258],"li",{},"Trockener, sandiger Boden",[256,260,261],{},"Korrodierter Erdspieß",[256,263,264],{},"Zu kurzer Erdspieß (mindestens 1,50 m Tiefe empfohlen)",[24,266,268],{"id":267},"tt-oder-tn-s-was-ist-besser","TT oder TN-S: Was ist besser?",[16,270,271,272,275],{},"Beide Systeme sind sicher, wenn sie korrekt installiert sind. In der Praxis hat das TT-System den Vorteil der ",[19,273,274],{},"Unabhängigkeit"," vom Versorgungsnetz — ein Fehler im Netz beeinflusst nicht die lokale Erdung. Seit dem AREI 2020 ist auch bei TN-S-Systemen ein 30 mA RCD für Steckdosenstromkreise (Art. 4.2.4.3) Pflicht. Die Befreiung von der RCD-Pflicht bei TN-S gilt nur für bestimmte ältere Installationen (Part 8).",[24,277,279],{"id":278},"tn-c-s-system","TN-C-S-System",[16,281,282],{},"In Belgien kommt auch das TN-C-S-System vor (häufig bei älteren Installationen). Dabei wird der PEN-Leiter am Hausanschluss in Schutzleiter (PE) und Neutralleiter (N) aufgeteilt.",[24,284,286],{"id":285},"verwandte-artikel","Verwandte Artikel",[16,288,289,290,297],{},"Dokumentieren Sie Ihr Erdungssystem normgerecht mit ",[291,292,296],"a",{"href":293,"rel":294},"https:\u002F\u002Fwww.planelec.be",[295],"nofollow","PlanElec"," — AREI-konforme Schemata automatisch erstellt.",{"title":299,"searchDepth":300,"depth":300,"links":301},"",2,[302,303,304,305,306,307,308,309],{"id":26,"depth":300,"text":27},{"id":37,"depth":300,"text":38},{"id":48,"depth":300,"text":49},{"id":166,"depth":300,"text":167},{"id":232,"depth":300,"text":233},{"id":267,"depth":300,"text":268},{"id":278,"depth":300,"text":279},{"id":285,"depth":300,"text":286},"faq","2026-03-20","Unterschiede zwischen TT- und TN-S-Erdungssystem für belgische Elektroinstallationen nach AREI Art. 4.2.3.2 und 4.2.4.3.","md","de",{},true,"\u002Fblog\u002Fearthing-tt-vs-tns.de","4 min",12,{"title":5,"description":312},"erdung-tt-tns-belgien","blog\u002Fearthing-tt-vs-tns.de",[324,325,326,327,328],"erdung","tt-system","tn-s","arei","belgien","MQwqHiC4DLqNU-dvG408RkkCSK29vu2OXh8JfLtZKzY",[331,538,829,1121],{"id":4,"title":5,"articleId":6,"body":332,"category":310,"date":311,"description":312,"extension":313,"lastUpdated":311,"locale":314,"meta":535,"navigation":316,"path":317,"publishDate":311,"readTime":318,"refreshInterval":319,"seo":536,"slug":321,"stem":322,"tags":537,"__hash__":329},{"type":8,"value":333,"toc":525},[334,336,340,342,346,348,352,354,438,440,488,490,498,500,508,510,514,516,518,520],[11,335,14],{"id":13},[16,337,338,22],{},[19,339,21],{},[24,341,27],{"id":26},[16,343,30,344,34],{},[19,345,33],{},[24,347,38],{"id":37},[16,349,41,350,45],{},[19,351,44],{},[24,353,49],{"id":48},[51,355,356,366],{},[54,357,358],{},[57,359,360,362,364],{},[60,361,62],{},[60,363,65],{},[60,365,68],{},[70,367,368,378,388,398,408,418,428],{},[57,369,370,374,376],{},[75,371,372],{},[19,373,79],{},[75,375,82],{},[75,377,85],{},[57,379,380,384,386],{},[75,381,382],{},[19,383,92],{},[75,385,95],{},[75,387,98],{},[57,389,390,394,396],{},[75,391,392],{},[19,393,105],{},[75,395,108],{},[75,397,111],{},[57,399,400,404,406],{},[75,401,402],{},[19,403,118],{},[75,405,121],{},[75,407,124],{},[57,409,410,414,416],{},[75,411,412],{},[19,413,131],{},[75,415,134],{},[75,417,137],{},[57,419,420,424,426],{},[75,421,422],{},[19,423,144],{},[75,425,147],{},[75,427,150],{},[57,429,430,434,436],{},[75,431,432],{},[19,433,157],{},[75,435,160],{},[75,437,163],{},[24,439,167],{"id":166},[51,441,442,450],{},[54,443,444],{},[57,445,446,448],{},[60,447,176],{},[60,449,179],{},[70,451,452,458,464,470,476,482],{},[57,453,454,456],{},[75,455,186],{},[75,457,189],{},[57,459,460,462],{},[75,461,194],{},[75,463,197],{},[57,465,466,468],{},[75,467,202],{},[75,469,205],{},[57,471,472,474],{},[75,473,210],{},[75,475,213],{},[57,477,478,480],{},[75,479,218],{},[75,481,221],{},[57,483,484,486],{},[75,485,226],{},[75,487,229],{},[24,489,233],{"id":232},[16,491,236,492,240,494,244,496,248],{},[19,493,239],{},[19,495,243],{},[19,497,247],{},[16,499,251],{},[253,501,502,504,506],{},[256,503,258],{},[256,505,261],{},[256,507,264],{},[24,509,268],{"id":267},[16,511,271,512,275],{},[19,513,274],{},[24,515,279],{"id":278},[16,517,282],{},[24,519,286],{"id":285},[16,521,289,522,297],{},[291,523,296],{"href":293,"rel":524},[295],{"title":299,"searchDepth":300,"depth":300,"links":526},[527,528,529,530,531,532,533,534],{"id":26,"depth":300,"text":27},{"id":37,"depth":300,"text":38},{"id":48,"depth":300,"text":49},{"id":166,"depth":300,"text":167},{"id":232,"depth":300,"text":233},{"id":267,"depth":300,"text":268},{"id":278,"depth":300,"text":279},{"id":285,"depth":300,"text":286},{},{"title":5,"description":312},[324,325,326,327,328],{"id":539,"title":540,"articleId":6,"body":541,"category":310,"date":311,"description":818,"extension":313,"lastUpdated":311,"locale":819,"meta":820,"navigation":316,"path":821,"publishDate":311,"readTime":318,"refreshInterval":319,"seo":822,"slug":823,"stem":824,"tags":825,"__hash__":828},"blog\u002Fblog\u002Fearthing-tt-vs-tns.en.md","Earthing in Belgium: TT vs. TN-S System Explained",{"type":8,"value":542,"toc":808},[543,547,553,557,564,568,575,579,687,691,747,751,766,769,780,784,791,794,797,801],[11,544,546],{"id":545},"earthing-in-belgium-tt-vs-tn-s","Earthing in Belgium: TT vs. TN-S",[16,548,549,552],{},[19,550,551],{},"In Belgium, the TT system is the standard for residential installations."," Each building has its own earth electrode (earth rod), which provides earthing independently from the distribution network. The TN-S system, where the protective conductor is supplied by the grid operator, is mainly used in new constructions and industrial buildings.",[24,554,556],{"id":555},"what-is-a-tt-system","What Is a TT System?",[16,558,559,560,563],{},"In the TT system (Terra-Terra), the distribution network has its own earth electrode at the transformer, and the consumer installation has a ",[19,561,562],{},"separate, local earth electrode"," (typically an earth rod or foundation earth). The protective conductor (PE) is not connected to the network neutral.",[24,565,567],{"id":566},"what-is-a-tn-s-system","What Is a TN-S System?",[16,569,570,571,574],{},"In the TN-S system (Terra-Neutral-Separate), the protective conductor (PE) is routed by the grid operator from the transformer ",[19,572,573],{},"separately from the neutral (N)",". Earthing is achieved through the network connection, not through a local earth electrode.",[24,576,578],{"id":577},"comparison-table","Comparison Table",[51,580,581,594],{},[54,582,583],{},[57,584,585,588,591],{},[60,586,587],{},"Property",[60,589,590],{},"TT System",[60,592,593],{},"TN-S System",[70,595,596,609,622,635,648,661,674],{},[57,597,598,603,606],{},[75,599,600],{},[19,601,602],{},"Earthing source",[75,604,605],{},"Own earth rod\u002Ffoundation earth",[75,607,608],{},"Protective conductor from grid operator",[57,610,611,616,619],{},[75,612,613],{},[19,614,615],{},"Prevalence in Belgium",[75,617,618],{},"Standard (existing + new)",[75,620,621],{},"New builds, industrial",[57,623,624,629,632],{},[75,625,626],{},[19,627,628],{},"RCD mandatory",[75,630,631],{},"300 mA main RCD + 30 mA group RCDs for sockets\u002Fspecial rooms (Art. 4.2.4.3)",[75,633,634],{},"Since AREI 2020: 30 mA RCD for socket circuits also mandatory (Art. 4.2.4.3)",[57,636,637,642,645],{},[75,638,639],{},[19,640,641],{},"Earth resistance",[75,643,644],{},"Max. 100 Ohm absolute limit (Art. 4.2.3.2); 30 Ohm is regulatory threshold (Art. 4.2.4.3_b) — if exceeded, additional RCDs required",[75,646,647],{},"Guaranteed by grid operator",[57,649,650,655,658],{},[75,651,652],{},[19,653,654],{},"Advantage",[75,656,657],{},"Independent from the grid",[75,659,660],{},"More reliable earthing",[57,662,663,668,671],{},[75,664,665],{},[19,666,667],{},"Disadvantage",[75,669,670],{},"Earth rod must be maintained",[75,672,673],{},"Dependent on grid operator",[57,675,676,681,684],{},[75,677,678],{},[19,679,680],{},"Fault current disconnection",[75,682,683],{},"Only via RCD",[75,685,686],{},"Also via breaker",[24,688,690],{"id":689},"arei-requirements","AREI Requirements",[51,692,693,703],{},[54,694,695],{},[57,696,697,700],{},[60,698,699],{},"AREI Article",[60,701,702],{},"Requirement",[70,704,705,712,719,726,733,740],{},[57,706,707,709],{},[75,708,186],{},[75,710,711],{},"Earth resistance in residential installations must be below 100 Ohm (absolute limit)",[57,713,714,716],{},[75,715,194],{},[75,717,718],{},"30 Ohm is regulatory threshold: if exceeded, at least two 30 mA RCDs with max. 16 sockets each are required",[57,720,721,723],{},[75,722,202],{},[75,724,725],{},"Formula R_E ≤ U_L \u002F I_A — with 300 mA and U_L = 50 V this yields max. ~166 Ohm",[57,727,728,730],{},[75,729,210],{},[75,731,732],{},"Earthing installation must be inspected regularly (periodic inspection)",[57,734,735,737],{},[75,736,218],{},[75,738,739],{},"RCD (residual current protection) is mandatory — for TT and since AREI 2020 also for TN-S socket circuits",[57,741,742,744],{},[75,743,226],{},[75,745,746],{},"The type of earthing system must be documented (documentation requirements)",[24,748,750],{"id":749},"checking-the-earth-rod","Checking the Earth Rod",[16,752,753,754,757,758,761,762,765],{},"In a TT system, the earth resistance must be measured at every ",[19,755,756],{},"electrical inspection (keuring)",". AREI Art. 4.2.3.2 sets an absolute limit of ",[19,759,760],{},"100 Ohm"," for residential installations. Art. 4.2.3.4_c defines the formula R_E ≤ U_L \u002F I_A (with a 300 mA main RCD and U_L = 50 V this yields max. ~166 Ohm). The value ",[19,763,764],{},"30 Ohm"," is a regulatory threshold (Art. 4.2.4.3_b): if exceeded, the AREI requires additional 30 mA RCDs. If the resistance is too high, an additional earth rod or deep-driven earth electrode may be required.",[16,767,768],{},"Typical causes of excessive earth resistance:",[253,770,771,774,777],{},[256,772,773],{},"Dry, sandy soil",[256,775,776],{},"Corroded earth rod",[256,778,779],{},"Earth rod too short (minimum 1.50 m depth recommended)",[24,781,783],{"id":782},"tt-or-tn-s-which-is-better","TT or TN-S: Which Is Better?",[16,785,786,787,790],{},"Both systems are safe when correctly installed. In practice, the TT system has the advantage of ",[19,788,789],{},"independence"," from the distribution network — a fault on the network does not affect the local earthing. Since AREI 2020, a 30 mA RCD for socket circuits (Art. 4.2.4.3) is also mandatory in TN-S systems. The exemption from the RCD requirement in TN-S only applies to certain older installations (Part 8).",[24,792,793],{"id":278},"TN-C-S System",[16,795,796],{},"In Belgium, the TN-C-S system also occurs (common in older installations). In this system, the PEN conductor is split into a protective conductor (PE) and neutral (N) at the building's service entrance.",[24,798,800],{"id":799},"related-articles","Related Articles",[16,802,803,804,807],{},"Document your earthing system to code with ",[291,805,296],{"href":293,"rel":806},[295]," — AREI-compliant schematics generated automatically.",{"title":299,"searchDepth":300,"depth":300,"links":809},[810,811,812,813,814,815,816,817],{"id":555,"depth":300,"text":556},{"id":566,"depth":300,"text":567},{"id":577,"depth":300,"text":578},{"id":689,"depth":300,"text":690},{"id":749,"depth":300,"text":750},{"id":782,"depth":300,"text":783},{"id":278,"depth":300,"text":793},{"id":799,"depth":300,"text":800},"Differences between TT and TN-S earthing systems for Belgian electrical installations according to AREI Art. 4.2.3.2 and 4.2.4.3.","en",{},"\u002Fblog\u002Fearthing-tt-vs-tns.en",{"title":540,"description":818},"earthing-tt-vs-tns-belgium","blog\u002Fearthing-tt-vs-tns.en",[826,325,326,327,827],"earthing","belgium","9tBshwaPyxzVZ4eHDtVdQyjNfJpz9pREWlT2UnSWsR0",{"id":830,"title":831,"articleId":6,"body":832,"category":310,"date":311,"description":1108,"extension":313,"lastUpdated":311,"locale":1109,"meta":1110,"navigation":316,"path":1111,"publishDate":311,"readTime":318,"refreshInterval":319,"seo":1112,"slug":1113,"stem":1114,"tags":1115,"__hash__":1120},"blog\u002Fblog\u002Fearthing-tt-vs-tns.fr.md","Mise à la terre en Belgique : système TT vs. TN-S expliqué",{"type":8,"value":833,"toc":1098},[834,838,844,848,855,859,866,870,978,982,1038,1042,1055,1058,1069,1073,1080,1084,1087,1091],[11,835,837],{"id":836},"mise-à-la-terre-en-belgique-tt-vs-tn-s","Mise à la terre en Belgique : TT vs. TN-S",[16,839,840,843],{},[19,841,842],{},"En Belgique, le système TT est la norme pour les installations résidentielles."," Chaque bâtiment dispose de sa propre prise de terre (électrode de terre), qui assure la mise à la terre indépendamment du réseau de distribution. Le système TN-S, dans lequel le conducteur de protection est fourni par le gestionnaire de réseau, est principalement utilisé pour les nouvelles constructions et les bâtiments industriels.",[24,845,847],{"id":846},"quest-ce-quun-système-tt","Qu'est-ce qu'un système TT ?",[16,849,850,851,854],{},"Dans le système TT (Terra-Terra), le réseau de distribution a sa propre électrode de terre au transformateur, et l'installation du consommateur dispose d'une ",[19,852,853],{},"électrode de terre locale et séparée"," (typiquement un piquet de terre ou une prise de terre de fondation). Le conducteur de protection (PE) n'est pas connecté au neutre du réseau.",[24,856,858],{"id":857},"quest-ce-quun-système-tn-s","Qu'est-ce qu'un système TN-S ?",[16,860,861,862,865],{},"Dans le système TN-S (Terra-Neutre-Séparé), le conducteur de protection (PE) est acheminé par le gestionnaire de réseau depuis le transformateur ",[19,863,864],{},"séparément du neutre (N)",". La mise à la terre se fait via la connexion au réseau, pas via une électrode locale.",[24,867,869],{"id":868},"tableau-comparatif","Tableau comparatif",[51,871,872,885],{},[54,873,874],{},[57,875,876,879,882],{},[60,877,878],{},"Caractéristique",[60,880,881],{},"Système TT",[60,883,884],{},"Système TN-S",[70,886,887,900,913,926,939,952,965],{},[57,888,889,894,897],{},[75,890,891],{},[19,892,893],{},"Source de terre",[75,895,896],{},"Piquet de terre\u002Ffondation propre",[75,898,899],{},"Conducteur de protection du GRD",[57,901,902,907,910],{},[75,903,904],{},[19,905,906],{},"Prévalence en Belgique",[75,908,909],{},"Standard (existant + neuf)",[75,911,912],{},"Neuf, industriel",[57,914,915,920,923],{},[75,916,917],{},[19,918,919],{},"Différentiel obligatoire",[75,921,922],{},"300 mA DDR principal + 30 mA DDR de groupe pour prises\u002Flocaux spéciaux (Art. 4.2.4.3)",[75,924,925],{},"Depuis RGIE 2020 : DDR 30 mA pour circuits de prises également obligatoire (Art. 4.2.4.3)",[57,927,928,933,936],{},[75,929,930],{},[19,931,932],{},"Résistance de terre",[75,934,935],{},"Max. 100 Ω limite absolue (Art. 4.2.3.2) ; 30 Ω est le seuil réglementaire (Art. 4.2.4.3_b) — en cas de dépassement, des DDR supplémentaires sont requis",[75,937,938],{},"Garantie par le GRD",[57,940,941,946,949],{},[75,942,943],{},[19,944,945],{},"Avantage",[75,947,948],{},"Indépendant du réseau",[75,950,951],{},"Mise à la terre plus fiable",[57,953,954,959,962],{},[75,955,956],{},[19,957,958],{},"Inconvénient",[75,960,961],{},"Le piquet doit être entretenu",[75,963,964],{},"Dépendant du GRD",[57,966,967,972,975],{},[75,968,969],{},[19,970,971],{},"Coupure du courant de défaut",[75,973,974],{},"Uniquement via différentiel",[75,976,977],{},"Aussi via disjoncteur",[24,979,981],{"id":980},"exigences-rgie","Exigences RGIE",[51,983,984,994],{},[54,985,986],{},[57,987,988,991],{},[60,989,990],{},"Article RGIE",[60,992,993],{},"Exigence",[70,995,996,1003,1010,1017,1024,1031],{},[57,997,998,1000],{},[75,999,186],{},[75,1001,1002],{},"La résistance de terre dans les installations domestiques doit être inférieure à 100 Ω (limite absolue)",[57,1004,1005,1007],{},[75,1006,194],{},[75,1008,1009],{},"30 Ω est le seuil réglementaire : en cas de dépassement, au minimum deux DDR 30 mA avec max. 16 prises chacun sont requis",[57,1011,1012,1014],{},[75,1013,202],{},[75,1015,1016],{},"Formule R_E ≤ U_L \u002F I_A — avec 300 mA et U_L = 50 V, le maximum est d'env. 166 Ω",[57,1018,1019,1021],{},[75,1020,210],{},[75,1022,1023],{},"L'installation de terre doit être contrôlée régulièrement (contrôle périodique)",[57,1025,1026,1028],{},[75,1027,218],{},[75,1029,1030],{},"Le DDR (protection différentielle) est obligatoire — en TT et depuis le RGIE 2020 aussi en TN-S pour les circuits de prises",[57,1032,1033,1035],{},[75,1034,226],{},[75,1036,1037],{},"Le type de système de mise à la terre doit être documenté (obligations de documentation)",[24,1039,1041],{"id":1040},"vérifier-le-piquet-de-terre","Vérifier le piquet de terre",[16,1043,1044,1045,1048,1049,1051,1052,1054],{},"Dans un système TT, la résistance de terre doit être mesurée lors de chaque ",[19,1046,1047],{},"contrôle électrique",". Le RGIE Art. 4.2.3.2 fixe pour les installations domestiques une limite absolue de ",[19,1050,243],{},". L'Art. 4.2.3.4_c définit la formule R_E ≤ U_L \u002F I_A (avec un DDR principal de 300 mA et U_L = 50 V, le maximum est d'env. 166 Ω). La valeur de ",[19,1053,247],{}," est un seuil réglementaire (Art. 4.2.4.3_b) : en cas de dépassement, le RGIE impose des DDR 30 mA supplémentaires. Si la résistance est trop élevée, un piquet de terre supplémentaire ou une prise de terre profonde peut être nécessaire.",[16,1056,1057],{},"Causes typiques d'une résistance de terre trop élevée :",[253,1059,1060,1063,1066],{},[256,1061,1062],{},"Sol sec et sableux",[256,1064,1065],{},"Piquet de terre corrodé",[256,1067,1068],{},"Piquet trop court (minimum 1,50 m de profondeur recommandé)",[24,1070,1072],{"id":1071},"tt-ou-tn-s-lequel-est-meilleur","TT ou TN-S : lequel est meilleur ?",[16,1074,1075,1076,1079],{},"Les deux systèmes sont sûrs s'ils sont correctement installés. En pratique, le système TT a l'avantage de l'",[19,1077,1078],{},"indépendance"," vis-à-vis du réseau de distribution — un défaut sur le réseau n'affecte pas la mise à la terre locale. Depuis le RGIE 2020, un DDR 30 mA pour les circuits de prises (Art. 4.2.4.3) est également obligatoire en TN-S. L'exemption de l'obligation DDR en TN-S ne s'applique qu'à certaines anciennes installations (Part 8).",[24,1081,1083],{"id":1082},"système-tn-c-s","Système TN-C-S",[16,1085,1086],{},"En Belgique, on rencontre aussi le système TN-C-S (fréquent dans les anciennes installations). Le conducteur PEN y est séparé au point de raccordement en conducteur de protection (PE) et neutre (N).",[24,1088,1090],{"id":1089},"articles-connexes","Articles connexes",[16,1092,1093,1094,1097],{},"Documentez votre système de mise à la terre conforme aux normes avec ",[291,1095,296],{"href":293,"rel":1096},[295]," — schémas conformes au RGIE générés automatiquement.",{"title":299,"searchDepth":300,"depth":300,"links":1099},[1100,1101,1102,1103,1104,1105,1106,1107],{"id":846,"depth":300,"text":847},{"id":857,"depth":300,"text":858},{"id":868,"depth":300,"text":869},{"id":980,"depth":300,"text":981},{"id":1040,"depth":300,"text":1041},{"id":1071,"depth":300,"text":1072},{"id":1082,"depth":300,"text":1083},{"id":1089,"depth":300,"text":1090},"Différences entre les systèmes de mise à la terre TT et TN-S pour les installations électriques belges selon le RGIE Art. 4.2.3.2 et 4.2.4.3.","fr",{},"\u002Fblog\u002Fearthing-tt-vs-tns.fr",{"title":831,"description":1108},"mise-a-la-terre-tt-tns-belgique","blog\u002Fearthing-tt-vs-tns.fr",[1116,1117,326,1118,1119],"mise-a-la-terre","systeme-tt","rgie","belgique","LS9mYtwsYmbitRNEMXEaeVWRdvoE9ZZoU4W5159PNT0",{"id":1122,"title":1123,"articleId":6,"body":1124,"category":310,"date":311,"description":1391,"extension":313,"lastUpdated":311,"locale":1392,"meta":1393,"navigation":316,"path":1394,"publishDate":311,"readTime":318,"refreshInterval":319,"seo":1395,"slug":1396,"stem":1397,"tags":1398,"__hash__":1402},"blog\u002Fblog\u002Fearthing-tt-vs-tns.nl.md","Aarding in België: TT- vs. TN-S-systeem uitgelegd",{"type":8,"value":1125,"toc":1382},[1126,1130,1136,1140,1147,1151,1158,1162,1270,1274,1329,1333,1346,1349,1360,1364,1371,1375],[11,1127,1129],{"id":1128},"aarding-in-belgië-tt-vs-tn-s","Aarding in België: TT vs. TN-S",[16,1131,1132,1135],{},[19,1133,1134],{},"In België is het TT-systeem de standaard voor woninginstallaties."," Elk gebouw krijgt een eigen aardpen (aardelektrode), die onafhankelijk van het distributienet de aarding verzorgt. Het TN-S-systeem, waarbij de beschermgeleider door de netbeheerder wordt meegeleverd, komt vooral voor bij nieuwbouw en industriële gebouwen.",[24,1137,1139],{"id":1138},"wat-is-een-tt-systeem","Wat is een TT-systeem?",[16,1141,1142,1143,1146],{},"Bij het TT-systeem (Terra-Terra) heeft het distributienet zijn eigen aardelektrode bij de transformator, en de verbruikersinstallatie heeft een ",[19,1144,1145],{},"afzonderlijke, lokale aardelektrode"," (typisch een aardpen of funderingsaarder). De beschermgeleider (PE) is niet verbonden met de nulleider van het net.",[24,1148,1150],{"id":1149},"wat-is-een-tn-s-systeem","Wat is een TN-S-systeem?",[16,1152,1153,1154,1157],{},"Bij het TN-S-systeem (Terra-Neutral-Separé) wordt de beschermgeleider (PE) door de netbeheerder vanaf de transformator ",[19,1155,1156],{},"apart van de nulleider (N)"," gevoerd. De aarding gebeurt via de netverbinding, niet via een lokale aardelektrode.",[24,1159,1161],{"id":1160},"vergelijkingstabel","Vergelijkingstabel",[51,1163,1164,1177],{},[54,1165,1166],{},[57,1167,1168,1171,1174],{},[60,1169,1170],{},"Eigenschap",[60,1172,1173],{},"TT-systeem",[60,1175,1176],{},"TN-S-systeem",[70,1178,1179,1192,1205,1218,1231,1244,1257],{},[57,1180,1181,1186,1189],{},[75,1182,1183],{},[19,1184,1185],{},"Aardingsbron",[75,1187,1188],{},"Eigen aardpen\u002Ffunderingsaarder",[75,1190,1191],{},"Beschermgeleider van netbeheerder",[57,1193,1194,1199,1202],{},[75,1195,1196],{},[19,1197,1198],{},"Verspreiding in België",[75,1200,1201],{},"Standaard (bestaand + nieuwbouw)",[75,1203,1204],{},"Nieuwbouw, industrie",[57,1206,1207,1212,1215],{},[75,1208,1209],{},[19,1210,1211],{},"Differentieel verplicht",[75,1213,1214],{},"300 mA hoofd-RCD + 30 mA groeps-RCD's voor stopcontacten\u002Fbijzondere ruimtes (Art. 4.2.4.3)",[75,1216,1217],{},"Sinds AREI 2020: 30 mA RCD voor stopcontactkringen eveneens verplicht (Art. 4.2.4.3)",[57,1219,1220,1225,1228],{},[75,1221,1222],{},[19,1223,1224],{},"Aardingsweerstand",[75,1226,1227],{},"Max. 100 Ω absolute grenswaarde (Art. 4.2.3.2); 30 Ω is regulatorische drempel (Art. 4.2.4.3_b) — bij overschrijding bijkomende RCD's vereist",[75,1229,1230],{},"Door netbeheerder gegarandeerd",[57,1232,1233,1238,1241],{},[75,1234,1235],{},[19,1236,1237],{},"Voordeel",[75,1239,1240],{},"Onafhankelijk van het net",[75,1242,1243],{},"Betrouwbaardere aarding",[57,1245,1246,1251,1254],{},[75,1247,1248],{},[19,1249,1250],{},"Nadeel",[75,1252,1253],{},"Aardpen moet onderhouden worden",[75,1255,1256],{},"Afhankelijk van netbeheerder",[57,1258,1259,1264,1267],{},[75,1260,1261],{},[19,1262,1263],{},"Foutstroomonderbreking",[75,1265,1266],{},"Enkel via differentieel mogelijk",[75,1268,1269],{},"Ook via zekering mogelijk",[24,1271,1273],{"id":1272},"arei-vereisten","AREI-vereisten",[51,1275,1276,1285],{},[54,1277,1278],{},[57,1279,1280,1282],{},[60,1281,176],{},[60,1283,1284],{},"Vereiste",[70,1286,1287,1294,1301,1308,1315,1322],{},[57,1288,1289,1291],{},[75,1290,186],{},[75,1292,1293],{},"Aardingsweerstand in huishoudelijke installaties moet onder 100 Ω liggen (absolute grenswaarde)",[57,1295,1296,1298],{},[75,1297,194],{},[75,1299,1300],{},"30 Ω is regulatorische drempel: bij overschrijding zijn minstens twee 30 mA-RCD's met elk max. 16 stopcontacten vereist",[57,1302,1303,1305],{},[75,1304,202],{},[75,1306,1307],{},"Formule R_E ≤ U_L \u002F I_A — bij 300 mA en U_L = 50 V geeft dit max. ~166 Ω",[57,1309,1310,1312],{},[75,1311,210],{},[75,1313,1314],{},"Aardingsinstallatie moet regelmatig gecontroleerd worden (periodieke controle)",[57,1316,1317,1319],{},[75,1318,218],{},[75,1320,1321],{},"RCD (differentieelbeveiliging) is verplicht — bij TT en sinds AREI 2020 ook bij TN-S voor stopcontactkringen",[57,1323,1324,1326],{},[75,1325,226],{},[75,1327,1328],{},"Het type aardingssysteem moet gedocumenteerd worden (documentatieverplichtingen)",[24,1330,1332],{"id":1331},"aardpen-controleren","Aardpen controleren",[16,1334,1335,1336,1339,1340,1342,1343,1345],{},"Bij het TT-systeem moet de aardingsweerstand bij elke ",[19,1337,1338],{},"elektrokeuring"," worden gemeten. AREI Art. 4.2.3.2 legt voor huishoudelijke installaties een absolute grenswaarde van ",[19,1341,243],{}," vast. Art. 4.2.3.4_c definieert de formule R_E ≤ U_L \u002F I_A (bij 300 mA hoofd-RCD en U_L = 50 V geeft dit max. ~166 Ω). De waarde ",[19,1344,247],{}," is een regulatorische drempel (Art. 4.2.4.3_b): bij overschrijding schrijft het AREI bijkomende 30 mA-RCD's voor. Als de weerstand te hoog is, kan een bijkomende aardpen of diepteaarder nodig zijn.",[16,1347,1348],{},"Typische oorzaken van een te hoge aardingsweerstand:",[253,1350,1351,1354,1357],{},[256,1352,1353],{},"Droge, zandige grond",[256,1355,1356],{},"Gecorrodeerde aardpen",[256,1358,1359],{},"Te korte aardpen (minimum 1,50 m diepte aanbevolen)",[24,1361,1363],{"id":1362},"tt-of-tn-s-wat-is-beter","TT of TN-S: Wat is beter?",[16,1365,1366,1367,1370],{},"Beide systemen zijn veilig als ze correct geïnstalleerd zijn. In de praktijk heeft het TT-systeem het voordeel van ",[19,1368,1369],{},"onafhankelijkheid"," van het distributienet — een fout in het net beïnvloedt de lokale aarding niet. Sinds het AREI 2020 is ook bij TN-S-systemen een 30 mA RCD voor stopcontactkringen (Art. 4.2.4.3) verplicht. De vrijstelling van de RCD-plicht bij TN-S geldt enkel voor bepaalde oudere installaties (Part 8).",[24,1372,1374],{"id":1373},"gerelateerde-artikelen","Gerelateerde artikelen",[16,1376,1377,1378,1381],{},"Documenteer uw aardingssysteem conform de normen met ",[291,1379,296],{"href":293,"rel":1380},[295]," — AREI-conforme schema's automatisch aangemaakt.",{"title":299,"searchDepth":300,"depth":300,"links":1383},[1384,1385,1386,1387,1388,1389,1390],{"id":1138,"depth":300,"text":1139},{"id":1149,"depth":300,"text":1150},{"id":1160,"depth":300,"text":1161},{"id":1272,"depth":300,"text":1273},{"id":1331,"depth":300,"text":1332},{"id":1362,"depth":300,"text":1363},{"id":1373,"depth":300,"text":1374},"Verschillen tussen het TT- en TN-S-aardingssysteem voor Belgische elektro-installaties volgens AREI Art. 4.2.3.2 en 4.2.4.3.","nl",{},"\u002Fblog\u002Fearthing-tt-vs-tns.nl",{"title":1123,"description":1391},"aarding-tt-tns-belgie","blog\u002Fearthing-tt-vs-tns.nl",[1399,1400,326,327,1401],"aarding","tt-systeem","belgie","-eNZo0TVa1L0veAO4rdov8gaCM_DZTTyTP0-zZHnRlo",1775151657880]