[{"data":1,"prerenderedAt":2295},["ShallowReactive",2],{"blog-post-en-cable-cross-section-breaker":3,"blog-alternates-cable-cross-section-breaker":524},{"id":4,"title":5,"articleId":6,"body":7,"category":505,"date":506,"description":507,"extension":508,"lastUpdated":509,"locale":510,"meta":511,"navigation":512,"path":513,"publishDate":506,"readTime":514,"refreshInterval":515,"seo":516,"slug":6,"stem":517,"tags":518,"__hash__":523},"blog\u002Fblog\u002Fcable-cross-section-breaker.en.md","Cable Cross-Section per Circuit Breaker: Which Cable for Which Protection?","cable-cross-section-breaker",{"type":8,"value":9,"toc":492},"minimark",[10,15,23,28,35,155,166,170,317,320,324,339,342,367,370,374,377,412,415,419,430,434,444,448,451,455,468,472],[11,12,14],"h1",{"id":13},"cable-cross-section-per-circuit-breaker","Cable Cross-Section per Circuit Breaker",[16,17,18,22],"p",{},[19,20,21],"strong",{},"The protective device protects the wiring, not the connected appliance."," A breaker that is too large for the wiring can allow the wiring to heat for too long during an overload. But choosing correctly involves more than looking up a size: the load, the cable and the installation conditions must be assessed together. This guide explains what AREI Book 1 V06 Table 4.11 does establish and what a complete design still has to check.",[24,25,27],"h2",{"id":26},"reading-table-411-in-the-other-direction","Reading Table 4.11 in the other direction",[16,29,30,31,34],{},"Table 4.11 in subsection 4.4.1.4 gives, for domestic installations, the maximum rated current of a fuse and a circuit breaker for each conductor cross-section. The inverse overview below is therefore a ",[19,32,33],{},"legal table ceiling for the cross-section",", not a universal guarantee that a cable of that size is adequately designed in every situation.",[36,37,38,54],"table",{},[39,40,41],"thead",{},[42,43,44,48,51],"tr",{},[45,46,47],"th",{},"Circuit breaker",[45,49,50],{},"Smallest cross-section shown by Table 4.11",[45,52,53],{},"Example use",[55,56,57,69,80,91,102,113,123,134,145],"tbody",{},[42,58,59,63,66],{},[60,61,62],"td",{},"10 A",[60,64,65],{},"1.5 mm² for fixed domestic circuits; 1 mm² appears in the table but not in Table 5.1 for new fixed wiring",[60,67,68],{},"Lighting without socket outlets",[42,70,71,74,77],{},[60,72,73],{},"16 A",[60,75,76],{},"1.5 mm² under Table 4.11, but socket circuits require at least 2.5 mm² under 5.2.1.2",[60,78,79],{},"Lighting or a circuit without sockets",[42,81,82,85,88],{},[60,83,84],{},"20 A",[60,86,87],{},"2.5 mm² as the table ceiling",[60,89,90],{},"Dedicated final circuit, if other checks allow it",[42,92,93,96,99],{},[60,94,95],{},"25 A",[60,97,98],{},"4 mm²",[60,100,101],{},"Final circuit with a higher load",[42,103,104,107,110],{},[60,105,106],{},"32 A",[60,108,109],{},"6 mm²",[60,111,112],{},"Dedicated higher-power load",[42,114,115,118,120],{},[60,116,117],{},"40 A",[60,119,109],{},[60,121,122],{},"Supply or heavy final circuit, after a complete calculation",[42,124,125,128,131],{},[60,126,127],{},"63 A",[60,129,130],{},"10 mm²",[60,132,133],{},"Sub-distribution board supply, after a complete calculation",[42,135,136,139,142],{},[60,137,138],{},"80 A",[60,140,141],{},"16 mm²",[60,143,144],{},"Supply wiring, after a complete calculation",[42,146,147,150,153],{},[60,148,149],{},"100 A",[60,151,152],{},"25 mm²",[60,154,144],{},[16,156,157,158,161,162,165],{},"The 2.5 mm² detail matters: Table 4.11 gives ",[19,159,160],{},"16 A as the maximum rated current for a fuse"," and ",[19,163,164],{},"20 A for a circuit breaker",". That does not automatically make a 20 A breaker correct on every 2.5 mm² cable. Installation method, load, voltage drop, short-circuit conditions and cable type still need checking. For a socket circuit, the minimum cross-section from 5.2.1.2 still applies even if a lower-rated protective device is selected.",[24,167,169],{"id":168},"the-complete-table-411","The complete Table 4.11",[36,171,172,189],{},[39,173,174],{},[42,175,176,179,183,186],{},[45,177,178],{},"Conductor cross-section",[45,180,182],{"align":181},"right","Max. fuse",[45,184,185],{"align":181},"Max. circuit breaker",[45,187,188],{},"Meaning",[55,190,191,205,218,230,242,254,264,274,285,295,305],{},[42,192,193,196,199,202],{},[60,194,195],{},"0.5 mm²",[60,197,198],{"align":181},"2 A",[60,200,201],{"align":181},"4 A",[60,203,204],{},"Control, monitoring, signalling and measurement circuits only",[42,206,207,210,212,215],{},[60,208,209],{},"0.75 mm²",[60,211,201],{"align":181},[60,213,214],{"align":181},"6 A",[60,216,217],{},"Circuits built into distribution and switchgear assemblies",[42,219,220,223,225,227],{},[60,221,222],{},"1 mm²",[60,224,214],{"align":181},[60,226,62],{"align":181},[60,228,229],{},"No new fixed-wiring exception in Table 5.1",[42,231,232,235,237,239],{},[60,233,234],{},"1.5 mm²",[60,236,62],{"align":181},[60,238,73],{"align":181},[60,240,241],{},"Circuits without socket outlets",[42,243,244,247,249,251],{},[60,245,246],{},"2.5 mm²",[60,248,73],{"align":181},[60,250,84],{"align":181},[60,252,253],{},"General Table 4.11 category",[42,255,256,258,260,262],{},[60,257,98],{},[60,259,84],{"align":181},[60,261,95],{"align":181},[60,263,253],{},[42,265,266,268,270,272],{},[60,267,109],{},[60,269,106],{"align":181},[60,271,117],{"align":181},[60,273,253],{},[42,275,276,278,281,283],{},[60,277,130],{},[60,279,280],{"align":181},"50 A",[60,282,127],{"align":181},[60,284,253],{},[42,286,287,289,291,293],{},[60,288,141],{},[60,290,127],{"align":181},[60,292,138],{"align":181},[60,294,253],{},[42,296,297,299,301,303],{},[60,298,152],{},[60,300,138],{"align":181},[60,302,149],{"align":181},[60,304,253],{},[42,306,307,310,312,315],{},[60,308,309],{},"35 mm²",[60,311,149],{"align":181},[60,313,314],{"align":181},"125 A",[60,316,253],{},[16,318,319],{},"The two protection columns are not interchangeable. Replacing a 16 A fuse with a 20 A breaker on 2.5 mm² increases the permitted rated current and therefore calls for a new assessment; the table only places both maximum values next to each other.",[24,321,323],{"id":322},"why-the-table-is-not-enough","Why the table is not enough",[16,325,326,327,330,331,334,335,338],{},"A correct design starts with the design current ",[19,328,329],{},"Ib",", meaning the current expected from the load. The rated current ",[19,332,333],{},"In"," of the protective device and the permissible current-carrying capacity ",[19,336,337],{},"Iz"," of the wiring are then selected. A common check is Ib ≤ In ≤ Iz, together with the required protective-device characteristics. Iz is not a fixed value determined by cross-section alone.",[16,340,341],{},"The assessment must include, among other things:",[343,344,345,349,352,355,358,361,364],"ul",{},[346,347,348],"li",{},"conductor material, insulation and cable construction;",[346,350,351],{},"installation method (in conduit, in thermal insulation, on a wall, in a bundle or on a cable tray);",[346,353,354],{},"the number of simultaneously loaded conductors and grouping factors;",[346,356,357],{},"ambient temperature, heat dissipation and external influences;",[346,359,360],{},"length, load and permissible voltage drop;",[346,362,363],{},"disconnection conditions during a short circuit and fault-loop impedance;",[346,365,366],{},"the protective device’s breaking capacity compared with the prospective short-circuit current.",[16,368,369],{},"The protection must therefore be compatible with the cross-section thermally and with the real circuit. A long cable run may need a larger cross-section to control voltage drop. An unfavourable installation method can reduce Iz. A breaker with an acceptable rated current can still be unsuitable if the fault loop does not permit the required automatic disconnection or if its breaking capacity is too low for the prospective fault current.",[24,371,373],{"id":372},"table-51-limited-exceptions-below-25-mm","Table 5.1: limited exceptions below 2.5 mm²",[16,375,376],{},"Subsection 5.2.1.2 generally prohibits insulated conductors smaller than 2.5 mm² when they are not an integral part of a machine or appliance. Table 5.1 lists the exceptions:",[36,378,379,389],{},[39,380,381],{},[42,382,383,386],{},[45,384,385],{},"Minimum",[45,387,388],{},"Only for",[55,390,391,398,405],{},[42,392,393,395],{},[60,394,234],{},[60,396,397],{},"Wiring in circuits without sockets, except an individual socket rated no more than 2.5 A that is built into a luminaire",[42,399,400,402],{},[60,401,209],{},[60,403,404],{},"Circuits built into distribution and switchgear assemblies that supply one single socket outlet; the protection must be suitable for that cross-section",[42,406,407,409],{},[60,408,195],{},[60,410,411],{},"Control, monitoring, signalling and measurement circuits",[16,413,414],{},"The 1 mm² row in Table 4.11 is therefore not, by itself, permission to install new fixed 1 mm² wiring in a home. Table 4.11 sets the maximum protective rating when another applicable rule permits that cross-section; Table 5.1 defines the field of use here.",[24,416,418],{"id":417},"existing-1-mm-emcb-and-emcvb-wiring","Existing 1 mm² EMCB and EMCVB wiring",[16,420,421,422,425,426,429],{},"Part 8 matters for existing sections of an installation. For installations whose on-site execution began before ",[19,423,424],{},"17 May 1986",", the derogation can allow an ",[19,427,428],{},"EMCB or EMCVB 1 mm²"," wiring system to remain in service when it forms part of a circuit without socket outlets, subject to the conditions of that derogation. Its protective device must be adapted to the cross-section. This is an allowance for existing wiring, not a rule permitting 1 mm² in a new installation. The actual condition, date and available documentation must be established during an inspection.",[24,431,433],{"id":432},"voltage-drop-3-and-5-are-not-arei-limits","Voltage drop: 3% and 5% are not AREI limits",[16,435,436,437,161,440,443],{},"For a preliminary check, designers often use ",[19,438,439],{},"3% for lighting",[19,441,442],{},"5% for other final circuits",". These are useful design or calculation assumptions, but they are not percentages that AREI 5.2.5 sets as general hard limits. That provision refers to the rules of the trade. Present 3% and 5% explicitly as a non-binding preliminary check. A long run, a motor, an EV charging point or sensitive equipment may require a larger cross-section after the actual conditions are calculated.",[24,445,447],{"id":446},"replacing-an-old-fuse","Replacing an old fuse",[16,449,450],{},"On an existing circuit, first identify the wiring actually installed, its installation method, the expected load and any derogations that apply to its construction date. The Table 4.11 columns come afterwards. For 2.5 mm², 16 A for a fuse and 20 A for a breaker are the table ceilings; they are not instructions to increase the protective rating. For 1.5 mm², the breaker ceiling is 16 A, while a socket circuit remains subject to the applicable minimum cross-section.",[24,452,454],{"id":453},"design-and-document","Design and document",[16,456,457,458,463,464,467],{},"With ",[459,460,462],"a",{"href":461},"\u002Fen","PlanElec",", you can record cross-sections, protective devices, circuits and lengths in the editor, export a PDF and run an ",[19,465,466],{},"orientational self-check",". The tool helps organise data and open points. It is not a complete cable calculation, an AREI compliance certificate or a replacement for measurements or an official inspection.",[24,469,471],{"id":470},"further-reading","Further reading",[343,473,474,480,486],{},[346,475,476],{},[459,477,479],{"href":478},"\u002Fen\u002Fblog\u002Fvoltage-drop-cable-sizing","Voltage drop and cable sizing",[346,481,482],{},[459,483,485],{"href":484},"\u002Fen\u002Fblog\u002Felectrical-inspection","Electrical inspection in Belgium",[346,487,488],{},[459,489,491],{"href":490},"\u002Fen\u002Fblog\u002Fsingle-line-diagram","Create a single-line diagram",{"title":493,"searchDepth":494,"depth":494,"links":495},"",2,[496,497,498,499,500,501,502,503,504],{"id":26,"depth":494,"text":27},{"id":168,"depth":494,"text":169},{"id":322,"depth":494,"text":323},{"id":372,"depth":494,"text":373},{"id":417,"depth":494,"text":418},{"id":432,"depth":494,"text":433},{"id":446,"depth":494,"text":447},{"id":453,"depth":494,"text":454},{"id":470,"depth":494,"text":471},"faq","2026-03-18","Read AREI Book 1 V06 Table 4.11 correctly: its legal ceiling is not a complete cable calculation. See Table 5.1, old EMCB and EMCVB wiring, and voltage drop.","md","2026-08-29","en",{},true,"\u002Fblog\u002Fcable-cross-section-breaker.en","8 min",12,{"title":5,"description":507},"blog\u002Fcable-cross-section-breaker.en",[519,520,521,522],"cable-cross-section","circuit-breaker","arei","electrical-installation","ZTE40C6SyIaO4w8gvJn5MRCWRyafZ9NedK0PblB8Fck",[525,1003,1364,1830],{"id":526,"title":527,"articleId":6,"body":528,"category":505,"date":506,"description":990,"extension":508,"lastUpdated":509,"locale":991,"meta":992,"navigation":512,"path":993,"publishDate":506,"readTime":994,"refreshInterval":515,"seo":995,"slug":996,"stem":997,"tags":998,"__hash__":1002},"blog\u002Fblog\u002Fcable-cross-section-breaker.de.md","Kabelquerschnitt für Sicherungsautomat: Welches Kabel für welche Sicherung?",{"type":8,"value":529,"toc":981},[530,534,540,544,547,648,652,655,661,800,811,834,838,892,896,906,910,917,930,934,941,944,947,951,969,976],[11,531,533],{"id":532},"kabelquerschnitt-für-sicherungsautomat","Kabelquerschnitt für Sicherungsautomat",[16,535,536,539],{},[19,537,538],{},"Die Sicherung schützt das Kabel, nicht das Gerät."," Wird ein zu dünnes Kabel an einem zu großen Sicherungsautomaten betrieben, kann das Kabel überhitzen und einen Brand verursachen. Die richtige Zuordnung von Kabelquerschnitt und Sicherungsnennstrom ist daher sicherheitskritisch und in der AREI-Norm verbindlich geregelt.",[24,541,543],{"id":542},"schnellübersicht-automat-mindestquerschnitt","Schnellübersicht: Automat → Mindestquerschnitt",[16,545,546],{},"Diese Übersicht liest Tabelle 4.11 in der Richtung, in der auf der Baustelle gefragt wird: Der Automat steht fest, gesucht ist der kleinste zulässige Querschnitt in Kupfer.",[36,548,549,562],{},[39,550,551],{},[42,552,553,556,559],{},[45,554,555],{},"Sicherungsautomat",[45,557,558],{},"Mindest-Kabelquerschnitt",[45,560,561],{},"Typische Anwendung",[55,563,564,574,584,594,603,612,622,631,640],{},[42,565,566,568,571],{},[60,567,62],{},[60,569,570],{},"1,5 mm² (Tabelle 4.11 erlaubt 1 mm², Tabelle 5.1 lässt diesen Querschnitt in festen Leitungen jedoch nicht zu)",[60,572,573],{},"Beleuchtung",[42,575,576,578,581],{},[60,577,73],{},[60,579,580],{},"1,5 mm² nach Tabelle 4.11; für Steckdosenstromkreise jedoch mindestens 2,5 mm² nach 5.2.1.2",[60,582,583],{},"Beleuchtung, Kreise ohne Steckdosen",[42,585,586,588,591],{},[60,587,84],{},[60,589,590],{},"2,5 mm² als Grenze aus Tabelle 4.11; Verlegeart, Umgebung und Spannungsfall können einen größeren Querschnitt verlangen",[60,592,593],{},"Zugeordneter Endstromkreis",[42,595,596,598,600],{},[60,597,95],{},[60,599,98],{},[60,601,602],{},"Endstromkreis mit höherer Last",[42,604,605,607,609],{},[60,606,106],{},[60,608,109],{},[60,610,611],{},"Kochfeld, Durchlauferhitzer",[42,613,614,616,619],{},[60,615,117],{},[60,617,618],{},"6 mm² als Tabellenobergrenze; die vollständige Dimensionierung kann einen größeren Querschnitt ergeben",[60,620,621],{},"Endstromkreis oder Zuleitung",[42,623,624,626,628],{},[60,625,127],{},[60,627,130],{},[60,629,630],{},"Zuleitung Unterverteilung",[42,632,633,635,637],{},[60,634,138],{},[60,636,141],{},[60,638,639],{},"Zuleitung, Hauptschalter",[42,641,642,644,646],{},[60,643,149],{},[60,645,152],{},[60,647,639],{},[24,649,651],{"id":650},"die-vollständige-tabelle-411","Die vollständige Tabelle 4.11",[16,653,654],{},"Im AREI selbst steht die Zuordnung in der umgekehrten Richtung: je Leiterquerschnitt das größte zulässige Kaliber der Schutzeinrichtung — und zwar getrennt für Schmelzsicherung und Leitungsschutzschalter. Für dieselbe Leitung liegt die Grenze der Schmelzsicherung deshalb stets ein Kaliber unter der des Automaten.",[16,656,657],{},[658,659,660],"em",{},"Tabelle 4.11 — Kaliber der Schutzeinrichtung je nach Leiterquerschnitt (AREI 4.4.1.4)",[36,662,663,679],{},[39,664,665],{},[42,666,667,670,673,676],{},[45,668,669],{},"Leiterquerschnitt",[45,671,672],{},"Max. Sicherung",[45,674,675],{},"Max. Leitungsschutzschalter",[45,677,678],{},"Einsatz in hauswirtschaftlichen Anlagen",[55,680,681,693,705,716,728,740,750,760,770,780,790],{},[42,682,683,686,688,690],{},[60,684,685],{},"0,5 mm²",[60,687,198],{},[60,689,201],{},[60,691,692],{},"nur Steuer-, Überwachungs-, Melde- und Messkreise",[42,694,695,698,700,702],{},[60,696,697],{},"0,75 mm²",[60,699,201],{},[60,701,214],{},[60,703,704],{},"nur integrierte Stromkreise in Verteilern",[42,706,707,709,711,713],{},[60,708,222],{},[60,710,214],{},[60,712,62],{},[60,714,715],{},"nur im ausdrücklich geregelten Altanlagen-Sonderfall",[42,717,718,721,723,725],{},[60,719,720],{},"1,5 mm²",[60,722,62],{},[60,724,73],{},[60,726,727],{},"Stromkreise ohne Steckdosen",[42,729,730,733,735,737],{},[60,731,732],{},"2,5 mm²",[60,734,73],{},[60,736,84],{},[60,738,739],{},"allgemein zulässig",[42,741,742,744,746,748],{},[60,743,98],{},[60,745,84],{},[60,747,95],{},[60,749,739],{},[42,751,752,754,756,758],{},[60,753,109],{},[60,755,106],{},[60,757,117],{},[60,759,739],{},[42,761,762,764,766,768],{},[60,763,130],{},[60,765,280],{},[60,767,127],{},[60,769,739],{},[42,771,772,774,776,778],{},[60,773,141],{},[60,775,127],{},[60,777,138],{},[60,779,739],{},[42,781,782,784,786,788],{},[60,783,152],{},[60,785,138],{},[60,787,149],{},[60,789,739],{},[42,791,792,794,796,798],{},[60,793,309],{},[60,795,149],{},[60,797,314],{},[60,799,739],{},[16,801,802,803,806,807,810],{},"Die kleinsten Zeilen sind keine allgemeine Auswahl für beliebige Endstromkreise, aber auch nicht bedeutungslos. Tabelle 5.1 erlaubt 1,5 mm² für Stromkreise ohne Steckdosen, 0,75 mm² für in Verteilern integrierte Stromkreise mit einer einzelnen Steckdose sowie 0,5 mm² für Steuer-, Überwachungs-, Melde- und Messkreise. Für ",[19,804,805],{},"bestehende häusliche Anlagen"," enthält Buch 1, Teil 8 außerdem eine eng begrenzte Ausnahme: Leitungen des Typs EMCB oder EMCVB mit 1 mm² dürfen in Anlagen, mit deren Errichtung vor Ort vor dem ",[19,808,809],{},"17. Mai 1986"," begonnen wurde, unter den dort genannten Bedingungen in Stromkreisen ohne Steckdosen erhalten bleiben. Daraus folgt keine Freigabe für neue 1-mm²-Leitungen.",[16,812,813,816,817,821,822,825,826,829,830,833],{},[19,814,815],{},"Wichtig:"," Tabelle 4.11 nennt das größte zulässige Kaliber je Querschnitt für häusliche Anlagen. Sie weist nicht allein nach, dass eine Leitung unter den realen Bedingungen ausreichend belastbar ist. Die vollständige Auswahl verknüpft Bemessungsstrom der Last ",[818,819,820],"code",{},"I_B",", Nennstrom des Schutzorgans ",[818,823,824],{},"I_n"," und zulässige Strombelastbarkeit der Leitung ",[818,827,828],{},"I_Z",": grundsätzlich ",[818,831,832],{},"I_B ≤ I_n ≤ I_Z",". Zusätzlich sind Abschaltbedingungen, Kurzschlussbeanspruchung und Selektivität zu prüfen. Isolierung, Leitungsaufbau, Verlegeart, Häufung, Umgebungstemperatur und Spannungsfall können einen größeren Querschnitt oder kleineren Schutz erfordern. Für nicht-häusliche Anlagen gilt Tabelle 4.11 nicht als diese pauschale Obergrenze.",[24,835,837],{"id":836},"arei-grundlagen","AREI-Grundlagen",[36,839,840,850],{},[39,841,842],{},[42,843,844,847],{},[45,845,846],{},"AREI Artikel",[45,848,849],{},"Regelung",[55,851,852,860,868,876,884],{},[42,853,854,857],{},[60,855,856],{},"Art. 4.4.1.4",[60,858,859],{},"Tabelle 4.11: Maximale Nennstromstärke von Sicherung und Leitungsschutzschalter je Leiterquerschnitt für hauswirtschaftliche Anlagen",[42,861,862,865],{},[60,863,864],{},"Art. 5.2.1.2",[60,866,867],{},"Wahl elektrischer Leitungen: grundsätzlich mindestens 2,5 mm²; abschließend beschriebene Ausnahmen in Tabelle 5.1",[42,869,870,873],{},[60,871,872],{},"Tabelle 5.1",[60,874,875],{},"Elektrische Leitungen, bei denen der Querschnitt weniger als 2,5 mm² betragen darf: 1,5 mm², 0,75 mm² und 0,5 mm² mit jeweils festgelegtem Einsatz",[42,877,878,881],{},[60,879,880],{},"Art. 5.2.5",[60,882,883],{},"Spannungsänderung ist auf Werte zu begrenzen, die einen einwandfreien Betrieb der Betriebsmittel sicherstellen; Fachregeln ergänzen die Auslegung",[42,885,886,889],{},[60,887,888],{},"Teil 8",[60,890,891],{},"Bestandsschutz für bestimmte Anlagen vor dem 17. Mai 1986 mit 1-mm²-Leitungen EMCB\u002FEMCVB unter den dort festgelegten Bedingungen",[24,893,895],{"id":894},"warum-ist-das-wichtig","Warum ist das wichtig?",[16,897,898,899,902,903],{},"Ein Kabel mit zu kleinem Querschnitt wird bei hoher Last warm. Wenn die Sicherung zu groß dimensioniert ist, löst sie nicht rechtzeitig aus — das Kabel überhitzt und es entsteht ",[19,900,901],{},"Brandgefahr",". Deshalb gilt immer: ",[19,904,905],{},"Die Sicherung muss kleiner oder gleich der Strombelastbarkeit des Kabels sein.",[24,907,909],{"id":908},"spannungsfall-beachten","Spannungsfall beachten",[16,911,912,913,916],{},"Bei langen Leitungsstrecken (z. B. vom Verteiler im Keller zur Garage) kann der Spannungsfall zu groß werden. AREI 5.2.5 – in der deutschen Fassung „Spannungsänderung“ – nennt selbst keine pauschalen ",[19,914,915],{},"3 % oder 5 %",", sondern verlangt einen einwandfreien Betrieb und verweist damit auf die Regeln des Fachs. Solche Prozentwerte aus Planungsleitfäden dürfen daher nicht als wörtlicher AREI-Grenzwert ausgegeben werden. Für die Berechnung braucht man mindestens Leitungslänge, Material, Querschnitt, Strom, Leistungsfaktor sowie Ein- oder Dreiphasensystem.",[16,918,919,920,924,925,929],{},"Wie Länge, Last und Phase zusammenwirken, erklärt der Leitfaden ",[459,921,923],{"href":922},"\u002Fde\u002Fblog\u002Fspannungsfall-berechnen-kabelquerschnitt","Spannungsfall berechnen und Kabelquerschnitt wählen",". Alternativ können Sie direkt den ",[459,926,928],{"href":927},"\u002Fde\u002Ftools\u002Fkabelquerschnitt-rechner","kostenlosen Rechner"," verwenden.",[24,931,933],{"id":932},"fehlerbild-bei-der-keuring","Fehlerbild bei der Keuring",[16,935,936,937,940],{},"Ein nachvollziehbarer Mangel bei der Elektrokontrolle ist ein ",[19,938,939],{},"zu großes Schutzorgan für den installierten Leiterquerschnitt",". Ob dies zu den häufigsten Beanstandungen zählt, lässt sich ohne veröffentlichte Statistik nicht seriös behaupten. Besonders genau ist bei Altinstallationen mit 1,5-mm²-Leitungen hinzusehen, wenn Schutzorgane später ersetzt wurden.",[16,942,943],{},"Beim Austausch alter Schmelzsicherungen gegen Automaten lohnt ein Blick in beide Spalten: Für eine zulässige 1,5-mm²-Kupferleitung nennt Tabelle 4.11 höchstens 10 A bei einer Schmelzsicherung und 16 A bei einem Automaten. Diese Tabellenwerte erlauben aber nicht automatisch jeden Einsatz: Neue Steckdosenstromkreise bleiben an den vorgeschriebenen Mindestquerschnitt gebunden, und auch Verlegeart, Belastung sowie weitere Schutzbedingungen müssen passen. Ein 20-A-Automat ist für 1,5 mm² nicht zulässig.",[16,945,946],{},"Die Tabellenwerte gelten für Kupferleiter. Andere Leiterwerkstoffe oder besondere Leitungssysteme dürfen nicht durch bloßes Übernehmen derselben Querschnitte dimensioniert werden.",[24,948,950],{"id":949},"verwandte-artikel","Verwandte Artikel",[343,952,953,957,963],{},[346,954,955],{},[459,956,923],{"href":922},[346,958,959],{},[459,960,962],{"href":961},"\u002Fde\u002Fblog\u002Feindrahtschema-erstellen","Eindrahtschema Schritt für Schritt erstellen",[346,964,965],{},[459,966,968],{"href":967},"\u002Fde\u002Fblog\u002Finspektions-checkliste","Was kontrolliert der Prüfer bei der Elektrokontrolle?",[16,970,971,972,975],{},"Dokumentieren Sie Kabelquerschnitte und Schutzgeräte mit ",[459,973,462],{"href":974},"\u002Fde"," und exportieren Sie Ihre Pläne als PDF. Der orientierende Selbstcheck ersetzt weder die vollständige Dimensionierung durch eine Elektrofachkraft noch die Kontrolle einer zugelassenen Prüfstelle.",[16,977,978],{},[658,979,980],{},"Regelgrundlage: AREI\u002FRGIE Buch 1, insbesondere 4.4.1.4, 5.2.1.2, 5.2.5 und die Bestandsabweichungen in Teil 8. Maßgeblich bleibt die amtliche Fassung für die konkrete Anlage.",{"title":493,"searchDepth":494,"depth":494,"links":982},[983,984,985,986,987,988,989],{"id":542,"depth":494,"text":543},{"id":650,"depth":494,"text":651},{"id":836,"depth":494,"text":837},{"id":894,"depth":494,"text":895},{"id":908,"depth":494,"text":909},{"id":932,"depth":494,"text":933},{"id":949,"depth":494,"text":950},"Kabelquerschnitte und Schutzorgane nach AREI: Tabelle 4.11 richtig als Obergrenze lesen und Strombelastbarkeit, Verlegeart, Spannungsfall sowie Sonderfälle vollständig dimensionieren.","de",{},"\u002Fblog\u002Fcable-cross-section-breaker.de","6 min",{"title":527,"description":990},"kabelquerschnitt-sicherungsautomat","blog\u002Fcable-cross-section-breaker.de",[999,1000,521,1001],"kabelquerschnitt","sicherungsautomat","elektroinstallation","WyQ3PzpBavaAJ_0lP19ThshqLgakoMbqiDkKx9Q7er4",{"id":4,"title":5,"articleId":6,"body":1004,"category":505,"date":506,"description":507,"extension":508,"lastUpdated":509,"locale":510,"meta":1361,"navigation":512,"path":513,"publishDate":506,"readTime":514,"refreshInterval":515,"seo":1362,"slug":6,"stem":517,"tags":1363,"__hash__":523},{"type":8,"value":1005,"toc":1350},[1006,1008,1012,1014,1018,1104,1110,1112,1238,1240,1242,1250,1252,1268,1270,1272,1274,1304,1306,1308,1314,1316,1322,1324,1326,1328,1334,1336],[11,1007,14],{"id":13},[16,1009,1010,22],{},[19,1011,21],{},[24,1013,27],{"id":26},[16,1015,30,1016,34],{},[19,1017,33],{},[36,1019,1020,1030],{},[39,1021,1022],{},[42,1023,1024,1026,1028],{},[45,1025,47],{},[45,1027,50],{},[45,1029,53],{},[55,1031,1032,1040,1048,1056,1064,1072,1080,1088,1096],{},[42,1033,1034,1036,1038],{},[60,1035,62],{},[60,1037,65],{},[60,1039,68],{},[42,1041,1042,1044,1046],{},[60,1043,73],{},[60,1045,76],{},[60,1047,79],{},[42,1049,1050,1052,1054],{},[60,1051,84],{},[60,1053,87],{},[60,1055,90],{},[42,1057,1058,1060,1062],{},[60,1059,95],{},[60,1061,98],{},[60,1063,101],{},[42,1065,1066,1068,1070],{},[60,1067,106],{},[60,1069,109],{},[60,1071,112],{},[42,1073,1074,1076,1078],{},[60,1075,117],{},[60,1077,109],{},[60,1079,122],{},[42,1081,1082,1084,1086],{},[60,1083,127],{},[60,1085,130],{},[60,1087,133],{},[42,1089,1090,1092,1094],{},[60,1091,138],{},[60,1093,141],{},[60,1095,144],{},[42,1097,1098,1100,1102],{},[60,1099,149],{},[60,1101,152],{},[60,1103,144],{},[16,1105,157,1106,161,1108,165],{},[19,1107,160],{},[19,1109,164],{},[24,1111,169],{"id":168},[36,1113,1114,1126],{},[39,1115,1116],{},[42,1117,1118,1120,1122,1124],{},[45,1119,178],{},[45,1121,182],{"align":181},[45,1123,185],{"align":181},[45,1125,188],{},[55,1127,1128,1138,1148,1158,1168,1178,1188,1198,1208,1218,1228],{},[42,1129,1130,1132,1134,1136],{},[60,1131,195],{},[60,1133,198],{"align":181},[60,1135,201],{"align":181},[60,1137,204],{},[42,1139,1140,1142,1144,1146],{},[60,1141,209],{},[60,1143,201],{"align":181},[60,1145,214],{"align":181},[60,1147,217],{},[42,1149,1150,1152,1154,1156],{},[60,1151,222],{},[60,1153,214],{"align":181},[60,1155,62],{"align":181},[60,1157,229],{},[42,1159,1160,1162,1164,1166],{},[60,1161,234],{},[60,1163,62],{"align":181},[60,1165,73],{"align":181},[60,1167,241],{},[42,1169,1170,1172,1174,1176],{},[60,1171,246],{},[60,1173,73],{"align":181},[60,1175,84],{"align":181},[60,1177,253],{},[42,1179,1180,1182,1184,1186],{},[60,1181,98],{},[60,1183,84],{"align":181},[60,1185,95],{"align":181},[60,1187,253],{},[42,1189,1190,1192,1194,1196],{},[60,1191,109],{},[60,1193,106],{"align":181},[60,1195,117],{"align":181},[60,1197,253],{},[42,1199,1200,1202,1204,1206],{},[60,1201,130],{},[60,1203,280],{"align":181},[60,1205,127],{"align":181},[60,1207,253],{},[42,1209,1210,1212,1214,1216],{},[60,1211,141],{},[60,1213,127],{"align":181},[60,1215,138],{"align":181},[60,1217,253],{},[42,1219,1220,1222,1224,1226],{},[60,1221,152],{},[60,1223,138],{"align":181},[60,1225,149],{"align":181},[60,1227,253],{},[42,1229,1230,1232,1234,1236],{},[60,1231,309],{},[60,1233,149],{"align":181},[60,1235,314],{"align":181},[60,1237,253],{},[16,1239,319],{},[24,1241,323],{"id":322},[16,1243,326,1244,330,1246,334,1248,338],{},[19,1245,329],{},[19,1247,333],{},[19,1249,337],{},[16,1251,341],{},[343,1253,1254,1256,1258,1260,1262,1264,1266],{},[346,1255,348],{},[346,1257,351],{},[346,1259,354],{},[346,1261,357],{},[346,1263,360],{},[346,1265,363],{},[346,1267,366],{},[16,1269,369],{},[24,1271,373],{"id":372},[16,1273,376],{},[36,1275,1276,1284],{},[39,1277,1278],{},[42,1279,1280,1282],{},[45,1281,385],{},[45,1283,388],{},[55,1285,1286,1292,1298],{},[42,1287,1288,1290],{},[60,1289,234],{},[60,1291,397],{},[42,1293,1294,1296],{},[60,1295,209],{},[60,1297,404],{},[42,1299,1300,1302],{},[60,1301,195],{},[60,1303,411],{},[16,1305,414],{},[24,1307,418],{"id":417},[16,1309,421,1310,425,1312,429],{},[19,1311,424],{},[19,1313,428],{},[24,1315,433],{"id":432},[16,1317,436,1318,161,1320,443],{},[19,1319,439],{},[19,1321,442],{},[24,1323,447],{"id":446},[16,1325,450],{},[24,1327,454],{"id":453},[16,1329,457,1330,463,1332,467],{},[459,1331,462],{"href":461},[19,1333,466],{},[24,1335,471],{"id":470},[343,1337,1338,1342,1346],{},[346,1339,1340],{},[459,1341,479],{"href":478},[346,1343,1344],{},[459,1345,485],{"href":484},[346,1347,1348],{},[459,1349,491],{"href":490},{"title":493,"searchDepth":494,"depth":494,"links":1351},[1352,1353,1354,1355,1356,1357,1358,1359,1360],{"id":26,"depth":494,"text":27},{"id":168,"depth":494,"text":169},{"id":322,"depth":494,"text":323},{"id":372,"depth":494,"text":373},{"id":417,"depth":494,"text":418},{"id":432,"depth":494,"text":433},{"id":446,"depth":494,"text":447},{"id":453,"depth":494,"text":454},{"id":470,"depth":494,"text":471},{},{"title":5,"description":507},[519,520,521,522],{"id":1365,"title":1366,"articleId":6,"body":1367,"category":505,"date":506,"description":1817,"extension":508,"lastUpdated":509,"locale":1818,"meta":1819,"navigation":512,"path":1820,"publishDate":506,"readTime":514,"refreshInterval":515,"seo":1821,"slug":1822,"stem":1823,"tags":1824,"__hash__":1829},"blog\u002Fblog\u002Fcable-cross-section-breaker.fr.md","Section de câble par disjoncteur : quel câble pour quelle protection ?",{"type":8,"value":1368,"toc":1806},[1369,1373,1379,1383,1390,1490,1501,1505,1640,1643,1647,1659,1662,1685,1688,1692,1695,1729,1732,1736,1746,1750,1760,1764,1767,1771,1782,1786],[11,1370,1372],{"id":1371},"section-de-câble-par-disjoncteur","Section de câble par disjoncteur",[16,1374,1375,1378],{},[19,1376,1377],{},"La protection protège la canalisation, pas l’appareil raccordé."," Un disjoncteur trop puissant pour la canalisation peut la laisser chauffer trop longtemps en cas de surcharge. Mais le bon choix ne se résume pas à chercher une section dans un tableau : la charge, le câble et les conditions de pose doivent être examinés ensemble. Voici ce que le tableau 4.11 du RGIE Livre 1 V06 permet réellement de conclure et ce qu’un dimensionnement complet doit encore vérifier.",[24,1380,1382],{"id":1381},"lire-le-tableau-411-dans-lautre-sens","Lire le tableau 4.11 dans l’autre sens",[16,1384,1385,1386,1389],{},"Le tableau 4.11 de la sous-section 4.4.1.4 donne, pour les installations domestiques, le courant nominal maximal d’un coupe-circuit à fusible et d’un disjoncteur selon la section du conducteur. Le tableau ci-dessous est donc une ",[19,1387,1388],{},"limite légale indicative pour la section",", et non la garantie universelle qu’un câble de cette section est dimensionné dans toute situation.",[36,1391,1392,1405],{},[39,1393,1394],{},[42,1395,1396,1399,1402],{},[45,1397,1398],{},"Disjoncteur",[45,1400,1401],{},"Plus petite section qui ressort du tableau 4.11",[45,1403,1404],{},"Exemple d’utilisation",[55,1406,1407,1417,1427,1437,1446,1455,1464,1473,1482],{},[42,1408,1409,1411,1414],{},[60,1410,62],{},[60,1412,1413],{},"1,5 mm² pour un circuit domestique fixe ; 1 mm² figure au tableau mais pas dans le tableau 5.1 pour une canalisation fixe neuve",[60,1415,1416],{},"Éclairage sans prises",[42,1418,1419,1421,1424],{},[60,1420,73],{},[60,1422,1423],{},"1,5 mm² selon le tableau 4.11, mais un circuit de prises exige au moins 2,5 mm² selon 5.2.1.2",[60,1425,1426],{},"Éclairage ou circuit sans prises",[42,1428,1429,1431,1434],{},[60,1430,84],{},[60,1432,1433],{},"2,5 mm² comme plafond du tableau",[60,1435,1436],{},"Circuit terminal dédié, si les autres vérifications l’autorisent",[42,1438,1439,1441,1443],{},[60,1440,95],{},[60,1442,98],{},[60,1444,1445],{},"Circuit terminal de charge plus élevée",[42,1447,1448,1450,1452],{},[60,1449,106],{},[60,1451,109],{},[60,1453,1454],{},"Récepteur dédié plus puissant",[42,1456,1457,1459,1461],{},[60,1458,117],{},[60,1460,109],{},[60,1462,1463],{},"Alimentation ou circuit terminal lourd, après calcul complet",[42,1465,1466,1468,1470],{},[60,1467,127],{},[60,1469,130],{},[60,1471,1472],{},"Alimentation d’un tableau divisionnaire, après calcul complet",[42,1474,1475,1477,1479],{},[60,1476,138],{},[60,1478,141],{},[60,1480,1481],{},"Canalisation d’alimentation, après calcul complet",[42,1483,1484,1486,1488],{},[60,1485,149],{},[60,1487,152],{},[60,1489,1481],{},[16,1491,1492,1493,1496,1497,1500],{},"Pour 2,5 mm², le tableau indique ",[19,1494,1495],{},"16 A comme maximum du fusible"," et ",[19,1498,1499],{},"20 A comme maximum du disjoncteur",". Cela ne rend pas automatiquement correct un disjoncteur de 20 A : pose, charge, chute de tension, court-circuit et type de canalisation restent à vérifier. Pour un circuit de prises, la section minimale de 5.2.1.2 reste applicable, même avec une protection plus faible.",[24,1502,1504],{"id":1503},"le-tableau-411-complet","Le tableau 4.11 complet",[36,1506,1507,1523],{},[39,1508,1509],{},[42,1510,1511,1514,1517,1520],{},[45,1512,1513],{},"Section du conducteur",[45,1515,1516],{"align":181},"Fusible max.",[45,1518,1519],{"align":181},"Disjoncteur max.",[45,1521,1522],{},"Signification",[55,1524,1525,1536,1547,1558,1569,1580,1590,1600,1610,1620,1630],{},[42,1526,1527,1529,1531,1533],{},[60,1528,685],{},[60,1530,198],{"align":181},[60,1532,201],{"align":181},[60,1534,1535],{},"Circuits de commande, contrôle, signalisation et mesure uniquement",[42,1537,1538,1540,1542,1544],{},[60,1539,697],{},[60,1541,201],{"align":181},[60,1543,214],{"align":181},[60,1545,1546],{},"Circuits intégrés dans les tableaux et ensembles de connexion",[42,1548,1549,1551,1553,1555],{},[60,1550,222],{},[60,1552,214],{"align":181},[60,1554,62],{"align":181},[60,1556,1557],{},"Pas d’exception neuve dans le tableau 5.1",[42,1559,1560,1562,1564,1566],{},[60,1561,720],{},[60,1563,62],{"align":181},[60,1565,73],{"align":181},[60,1567,1568],{},"Circuits sans socles de prise de courant",[42,1570,1571,1573,1575,1577],{},[60,1572,732],{},[60,1574,73],{"align":181},[60,1576,84],{"align":181},[60,1578,1579],{},"Catégorie générale du tableau",[42,1581,1582,1584,1586,1588],{},[60,1583,98],{},[60,1585,84],{"align":181},[60,1587,95],{"align":181},[60,1589,1579],{},[42,1591,1592,1594,1596,1598],{},[60,1593,109],{},[60,1595,106],{"align":181},[60,1597,117],{"align":181},[60,1599,1579],{},[42,1601,1602,1604,1606,1608],{},[60,1603,130],{},[60,1605,280],{"align":181},[60,1607,127],{"align":181},[60,1609,1579],{},[42,1611,1612,1614,1616,1618],{},[60,1613,141],{},[60,1615,127],{"align":181},[60,1617,138],{"align":181},[60,1619,1579],{},[42,1621,1622,1624,1626,1628],{},[60,1623,152],{},[60,1625,138],{"align":181},[60,1627,149],{"align":181},[60,1629,1579],{},[42,1631,1632,1634,1636,1638],{},[60,1633,309],{},[60,1635,149],{"align":181},[60,1637,314],{"align":181},[60,1639,1579],{},[16,1641,1642],{},"Les deux colonnes ne sont pas interchangeables. Remplacer un fusible de 16 A par un disjoncteur de 20 A sur 2,5 mm² augmente le courant nominal et demande une nouvelle vérification ; le tableau juxtapose seulement deux plafonds.",[24,1644,1646],{"id":1645},"pourquoi-le-tableau-ne-suffit-pas","Pourquoi le tableau ne suffit pas",[16,1648,1649,1650,1652,1653,1655,1656,1658],{},"Un dimensionnement correct commence par le courant de conception ",[19,1651,329],{},", attendu de la charge. On choisit ensuite le courant nominal ",[19,1654,333],{}," et la capacité de transport ",[19,1657,337],{}," de la canalisation. Une vérification courante est Ib ≤ In ≤ Iz, avec les caractéristiques exigées de la protection. Iz ne dépend pas de la seule section.",[16,1660,1661],{},"Il faut notamment considérer :",[343,1663,1664,1667,1670,1673,1676,1679,1682],{},[346,1665,1666],{},"le matériau, l’isolation et la constitution du câble ou de la canalisation ;",[346,1668,1669],{},"le mode de pose (tube, isolation thermique, paroi, faisceau ou chemin de câbles) ;",[346,1671,1672],{},"le nombre de conducteurs chargés simultanément et les facteurs de groupement ;",[346,1674,1675],{},"la température ambiante, l’évacuation de la chaleur et les influences externes ;",[346,1677,1678],{},"la longueur, la charge et la chute de tension admissible ;",[346,1680,1681],{},"les conditions de coupure en cas de court-circuit et l’impédance de boucle de défaut ;",[346,1683,1684],{},"le pouvoir de coupure de la protection par rapport au courant de court-circuit présumé.",[16,1686,1687],{},"La protection doit donc être compatible avec la section et le circuit réel. Une longue liaison peut nécessiter une section supérieure pour la chute de tension ; une pose défavorable peut diminuer Iz. Un calibre acceptable reste inadéquat si l’impédance de boucle ne permet pas la coupure automatique ou si le pouvoir de coupure est insuffisant.",[24,1689,1691],{"id":1690},"tableau-51-les-exceptions-limitées-sous-25-mm","Tableau 5.1 : les exceptions limitées sous 2,5 mm²",[16,1693,1694],{},"La sous-section 5.2.1.2 interdit en principe les conducteurs isolés de moins de 2,5 mm² lorsqu’ils ne font pas partie intégrante d’une machine ou d’un appareil. Le tableau 5.1 énumère les exceptions :",[36,1696,1697,1706],{},[39,1698,1699],{},[42,1700,1701,1703],{},[45,1702,385],{},[45,1704,1705],{},"Uniquement pour",[55,1707,1708,1715,1722],{},[42,1709,1710,1712],{},[60,1711,720],{},[60,1713,1714],{},"Canalisations de circuits sans prises, sauf une prise individuelle d’au plus 2,5 A intégrée dans un luminaire",[42,1716,1717,1719],{},[60,1718,697],{},[60,1720,1721],{},"Circuits intégrés dans les tableaux et ensembles de connexion alimentant un seul socle de prise ; la protection doit être adaptée à cette section",[42,1723,1724,1726],{},[60,1725,685],{},[60,1727,1728],{},"Circuits de commande, contrôle, signalisation et mesure",[16,1730,1731],{},"La ligne 1 mm² du tableau 4.11 n’est donc pas, à elle seule, une autorisation de poser aujourd’hui une canalisation fixe de 1 mm² dans une habitation. Le tableau fixe la protection maximale lorsqu’une règle applicable permet cette section ; le tableau 5.1 en fixe ici le domaine d’emploi.",[24,1733,1735],{"id":1734},"câbles-emcb-et-emcvb-de-1-mm-dans-lexistant","Câbles EMCB et EMCVB de 1 mm² dans l’existant",[16,1737,1738,1739,1742,1743,1745],{},"Pour les parties existantes, les dérogations de la Partie 8 sont pertinentes. Pour les installations dont l’exécution sur place a commencé avant le ",[19,1740,1741],{},"17 mai 1986",", une canalisation EMCB ou EMCVB de ",[19,1744,222],{}," peut rester en service, sous les conditions de la disposition dérogatoire, lorsqu’elle appartient à un circuit sans prises. Le dispositif de protection doit être adapté à la section. Il s’agit d’une tolérance pour une installation existante et non d’une règle permettant de poser du 1 mm² dans une installation neuve. L’état réel, la date et les documents disponibles doivent pouvoir être établis lors du contrôle.",[24,1747,1749],{"id":1748},"chute-de-tension-3-et-5-ne-sont-pas-une-limite-rgie","Chute de tension : 3 % et 5 % ne sont pas une limite RGIE",[16,1751,1752,1753,1496,1756,1759],{},"Pour une vérification préalable, on utilise souvent ",[19,1754,1755],{},"3 % pour l’éclairage",[19,1757,1758],{},"5 % pour les autres circuits terminaux",". Ce sont des hypothèses utiles, pas des limites générales imposées par le RGIE 5.2.5, qui renvoie aux règles de l’art. Présentez-les comme un contrôle non contraignant : une longue liaison, un moteur, une borne de recharge ou un matériel sensible peut demander davantage après calcul.",[24,1761,1763],{"id":1762},"remplacer-un-ancien-fusible","Remplacer un ancien fusible",[16,1765,1766],{},"Sur un circuit existant, il faut d’abord identifier la canalisation réellement posée, son mode de pose, la charge attendue et les éventuelles dérogations liées à l’époque de construction. Les colonnes du tableau 4.11 viennent ensuite. Pour 2,5 mm², 16 A pour un fusible et 20 A pour un disjoncteur sont les plafonds du tableau ; ce ne sont pas des consignes d’augmenter la protection. Pour 1,5 mm², la limite du disjoncteur est 16 A, tandis qu’un circuit de prises reste soumis à la section minimale applicable.",[24,1768,1770],{"id":1769},"concevoir-et-documenter","Concevoir et documenter",[16,1772,1773,1774,1777,1778,1781],{},"Avec ",[459,1775,462],{"href":1776},"\u002Ffr",", vous pouvez saisir sections, protections, circuits et longueurs dans l’éditeur, exporter un PDF et lancer un ",[19,1779,1780],{},"auto-contrôle indicatif",". L’outil aide à organiser les données et les points ouverts. Il ne constitue ni un dimensionnement complet, ni une attestation de conformité RGIE, ni un remplacement des mesures ou du contrôle officiel.",[24,1783,1785],{"id":1784},"pour-aller-plus-loin","Pour aller plus loin",[343,1787,1788,1794,1800],{},[346,1789,1790],{},[459,1791,1793],{"href":1792},"\u002Ffr\u002Fblog\u002Fchute-de-tension-section-cable","Calcul de chute de tension et choix de la section",[346,1795,1796],{},[459,1797,1799],{"href":1798},"\u002Ffr\u002Fblog\u002Fcontrole-electrique","Contrôle électrique en Belgique",[346,1801,1802],{},[459,1803,1805],{"href":1804},"\u002Ffr\u002Fblog\u002Fschema-unifilaire","Créer un schéma unifilaire",{"title":493,"searchDepth":494,"depth":494,"links":1807},[1808,1809,1810,1811,1812,1813,1814,1815,1816],{"id":1381,"depth":494,"text":1382},{"id":1503,"depth":494,"text":1504},{"id":1645,"depth":494,"text":1646},{"id":1690,"depth":494,"text":1691},{"id":1734,"depth":494,"text":1735},{"id":1748,"depth":494,"text":1749},{"id":1762,"depth":494,"text":1763},{"id":1769,"depth":494,"text":1770},{"id":1784,"depth":494,"text":1785},"Lisez correctement le tableau 4.11 du RGIE Livre 1 V06 : son plafond légal ne remplace pas le dimensionnement complet. Voyez aussi le tableau 5.1, les câbles EMCB et EMCVB anciens et la chute de tension.","fr",{},"\u002Fblog\u002Fcable-cross-section-breaker.fr",{"title":1366,"description":1817},"section-cable-disjoncteur","blog\u002Fcable-cross-section-breaker.fr",[1825,1826,1827,1828],"section-cable","disjoncteur","rgie","installation-electrique","MBYBMaV5-RrnhLT9FlG908vEUWtprBLtqr26bXd1gKg",{"id":1831,"title":1832,"articleId":6,"body":1833,"category":505,"date":506,"description":2283,"extension":508,"lastUpdated":509,"locale":2284,"meta":2285,"navigation":512,"path":2286,"publishDate":506,"readTime":514,"refreshInterval":515,"seo":2287,"slug":2288,"stem":2289,"tags":2290,"__hash__":2294},"blog\u002Fblog\u002Fcable-cross-section-breaker.nl.md","Kabeldoorsnede per automaat: welke kabel bij welke zekering?",{"type":8,"value":1834,"toc":2272},[1835,1839,1845,1849,1856,1956,1967,1971,2106,2109,2113,2125,2128,2151,2154,2158,2161,2195,2198,2202,2212,2216,2226,2230,2233,2237,2248,2252],[11,1836,1838],{"id":1837},"kabeldoorsnede-per-automaat","Kabeldoorsnede per automaat",[16,1840,1841,1844],{},[19,1842,1843],{},"De beveiliging beschermt de leiding, niet het aangesloten toestel."," Een automaat die te groot is voor de leiding kan de leiding bij overbelasting te lang laten opwarmen. De juiste keuze is echter meer dan een tabel opzoeken: de belasting, de leiding en de omstandigheden moeten samen worden beoordeeld. Hieronder staat wat AREI Boek 1 V06 wél uit Tabel 4.11 afleidt en wat een volledige dimensionering nog vereist.",[24,1846,1848],{"id":1847},"tabel-411-omgekeerd-gelezen","Tabel 4.11 omgekeerd gelezen",[16,1850,1851,1852,1855],{},"Tabel 4.11 in onderafdeling 4.4.1.4 vermeldt voor huishoudelijke installaties per geleidersdoorsnede de maximale nominale stroom van een smeltzekering en van een leidingbeveiligingsschakelaar (automaat). De volgende omgekeerde weergave is dus een ",[19,1853,1854],{},"wettelijke tabelgrens voor de doorsnede",", geen universele garantie dat elke kabelsituatie daarmee gedimensioneerd is.",[36,1857,1858,1871],{},[39,1859,1860],{},[42,1861,1862,1865,1868],{},[45,1863,1864],{},"Automaat",[45,1866,1867],{},"Kleinste doorsnede die uit Tabel 4.11 volgt",[45,1869,1870],{},"Voorbeeld van gebruik",[55,1872,1873,1883,1893,1903,1912,1921,1930,1939,1948],{},[42,1874,1875,1877,1880],{},[60,1876,62],{},[60,1878,1879],{},"1,5 mm² voor vaste huishoudelijke kringen; 1 mm² staat wel in de tabel maar niet in Tabel 5.1 voor nieuwe vaste leidingen",[60,1881,1882],{},"Verlichting zonder stopcontacten",[42,1884,1885,1887,1890],{},[60,1886,73],{},[60,1888,1889],{},"1,5 mm² volgens Tabel 4.11, maar stopcontactkringen hebben minstens 2,5 mm² volgens 5.2.1.2",[60,1891,1892],{},"Verlichting of kring zonder stopcontacten",[42,1894,1895,1897,1900],{},[60,1896,84],{},[60,1898,1899],{},"2,5 mm² als tabelgrens",[60,1901,1902],{},"Toegewijde eindkring, als alle andere controles dit toelaten",[42,1904,1905,1907,1909],{},[60,1906,95],{},[60,1908,98],{},[60,1910,1911],{},"Eindkring met hogere belasting",[42,1913,1914,1916,1918],{},[60,1915,106],{},[60,1917,109],{},[60,1919,1920],{},"Zwaardere toegewijde verbruiker",[42,1922,1923,1925,1927],{},[60,1924,117],{},[60,1926,109],{},[60,1928,1929],{},"Voeding of zware eindkring, na volledige berekening",[42,1931,1932,1934,1936],{},[60,1933,127],{},[60,1935,130],{},[60,1937,1938],{},"Voeding van een onderverdeling, na volledige berekening",[42,1940,1941,1943,1945],{},[60,1942,138],{},[60,1944,141],{},[60,1946,1947],{},"Voedingsleiding, na volledige berekening",[42,1949,1950,1952,1954],{},[60,1951,149],{},[60,1953,152],{},[60,1955,1947],{},[16,1957,1958,1959,1962,1963,1966],{},"De relevante nuance bij 2,5 mm² is belangrijk: volgens Tabel 4.11 is ",[19,1960,1961],{},"16 A de maximale nominale stroom voor een smeltzekering"," en ",[19,1964,1965],{},"20 A voor een automaat",". Dat maakt een 20 A-automaat op 2,5 mm² niet automatisch de juiste keuze. De plaatsing, de belasting, de spanningsval, de kortsluitvoorwaarden en het leidingtype blijven van belang. Bij een stopcontactkring blijft de minimumdoorsnede uit 5.2.1.2 gelden, ook wanneer een lichtere beveiliging wordt gekozen.",[24,1968,1970],{"id":1969},"de-volledige-tabel-411","De volledige Tabel 4.11",[36,1972,1973,1989],{},[39,1974,1975],{},[42,1976,1977,1980,1983,1986],{},[45,1978,1979],{},"Doorsnede geleider",[45,1981,1982],{"align":181},"Max. smeltzekering",[45,1984,1985],{"align":181},"Max. automaat",[45,1987,1988],{},"Betekenis",[55,1990,1991,2002,2013,2024,2035,2046,2056,2066,2076,2086,2096],{},[42,1992,1993,1995,1997,1999],{},[60,1994,685],{},[60,1996,198],{"align":181},[60,1998,201],{"align":181},[60,2000,2001],{},"Alleen stuur-, controle-, meld- en meetkringen",[42,2003,2004,2006,2008,2010],{},[60,2005,697],{},[60,2007,201],{"align":181},[60,2009,214],{"align":181},[60,2011,2012],{},"Ingebouwde kringen in verdeel- en schakelcombinaties",[42,2014,2015,2017,2019,2021],{},[60,2016,222],{},[60,2018,214],{"align":181},[60,2020,62],{"align":181},[60,2022,2023],{},"Geen nieuwe vaste uitzondering in Tabel 5.1",[42,2025,2026,2028,2030,2032],{},[60,2027,720],{},[60,2029,62],{"align":181},[60,2031,73],{"align":181},[60,2033,2034],{},"Kringen zonder stopcontacten",[42,2036,2037,2039,2041,2043],{},[60,2038,732],{},[60,2040,73],{"align":181},[60,2042,84],{"align":181},[60,2044,2045],{},"Algemeen toegelaten tabelcategorie",[42,2047,2048,2050,2052,2054],{},[60,2049,98],{},[60,2051,84],{"align":181},[60,2053,95],{"align":181},[60,2055,2045],{},[42,2057,2058,2060,2062,2064],{},[60,2059,109],{},[60,2061,106],{"align":181},[60,2063,117],{"align":181},[60,2065,2045],{},[42,2067,2068,2070,2072,2074],{},[60,2069,130],{},[60,2071,280],{"align":181},[60,2073,127],{"align":181},[60,2075,2045],{},[42,2077,2078,2080,2082,2084],{},[60,2079,141],{},[60,2081,127],{"align":181},[60,2083,138],{"align":181},[60,2085,2045],{},[42,2087,2088,2090,2092,2094],{},[60,2089,152],{},[60,2091,138],{"align":181},[60,2093,149],{"align":181},[60,2095,2045],{},[42,2097,2098,2100,2102,2104],{},[60,2099,309],{},[60,2101,149],{"align":181},[60,2103,314],{"align":181},[60,2105,2045],{},[16,2107,2108],{},"De twee beschermingskolommen zijn niet uitwisselbaar. Een bestaande smeltzekering van 16 A vervangen door een automaat van 20 A is een verhoging van de toegelaten nominale stroom en vraagt dus een nieuwe beoordeling; de tabel zegt alleen dat beide waarden bij 2,5 mm² als maximum naast elkaar staan.",[24,2110,2112],{"id":2111},"waarom-de-tabel-niet-volstaat","Waarom de tabel niet volstaat",[16,2114,2115,2116,2118,2119,2121,2122,2124],{},"Een correcte dimensionering begint bij de ontwerpstroom ",[19,2117,329],{},": de verwachte stroom van de belasting. Daarna worden de nominale stroom ",[19,2120,333],{}," en de toelaatbare stroombelastbaarheid ",[19,2123,337],{}," van de leiding gekozen. Een gebruikelijke controle is Ib ≤ In ≤ Iz, samen met de vereiste eigenschappen van de beveiliging. Iz is geen vaste waarde die uitsluitend uit mm² volgt.",[16,2126,2127],{},"De berekening moet onder meer rekening houden met:",[343,2129,2130,2133,2136,2139,2142,2145,2148],{},[346,2131,2132],{},"het materiaal, de isolatie en de opbouw van de kabel of leiding;",[346,2134,2135],{},"de plaatsingswijze (in buis, in isolatie, op een wand, in een bundel of in een kabelgoot);",[346,2137,2138],{},"het aantal gelijktijdig belaste geleiders en de groeperingsfactor;",[346,2140,2141],{},"omgevingstemperatuur, warmteafvoer en bijzondere invloeden;",[346,2143,2144],{},"de lengte, de belasting en de toegelaten spanningsval;",[346,2146,2147],{},"de uitschakelvoorwaarden bij kortsluiting en de beschikbare foutlusimpedantie;",[346,2149,2150],{},"het uitschakelvermogen van de beveiliging tegenover de te verwachten kortsluitstroom.",[16,2152,2153],{},"De beveiliging moet dus niet alleen thermisch bij de doorsnede passen. Een lange leiding kan door spanningsval een grotere doorsnede nodig hebben. Een ongunstige plaatsingswijze kan de stroombelastbaarheid verlagen. En een automaat met voldoende nominale stroom kan nog altijd ongeschikt zijn als de foutlus geen snelle automatische uitschakeling garandeert of het kortsluitvermogen niet volstaat.",[24,2155,2157],{"id":2156},"tabel-51-de-beperkte-uitzonderingen-onder-25-mm","Tabel 5.1: de beperkte uitzonderingen onder 2,5 mm²",[16,2159,2160],{},"Onder 5.2.1.2 zijn geïsoleerde geleiders kleiner dan 2,5 mm² in principe verboden wanneer ze geen integraal deel van een machine of toestel zijn. Tabel 5.1 somt de uitzonderingen op:",[36,2162,2163,2172],{},[39,2164,2165],{},[42,2166,2167,2169],{},[45,2168,385],{},[45,2170,2171],{},"Alleen voor",[55,2173,2174,2181,2188],{},[42,2175,2176,2178],{},[60,2177,720],{},[60,2179,2180],{},"Leidingen van kringen zonder stopcontacten, behalve een afzonderlijk stopcontact van maximaal 2,5 A dat in een verlichtingsarmatuur is ingebouwd",[42,2182,2183,2185],{},[60,2184,697],{},[60,2186,2187],{},"In verdeel- en schakelcombinaties ingebouwde kringen die één enkel stopcontact voeden; de beveiliging moet voor die doorsnede geschikt zijn",[42,2189,2190,2192],{},[60,2191,685],{},[60,2193,2194],{},"Stuur-, controle-, meld- en meetkringen",[16,2196,2197],{},"De rij 1 mm² uit Tabel 4.11 is dus niet op zichzelf een toestemming voor een nieuwe vaste 1 mm²-leiding in een woning. De tabel bepaalt de maximale beveiliging wanneer die doorsnede volgens een toepasselijke regel mag voorkomen; Tabel 5.1 bepaalt hier het toepassingsgebied.",[24,2199,2201],{"id":2200},"bestaande-emcb-en-emcvb-leidingen-van-1-mm","Bestaande EMCB- en EMCVB-leidingen van 1 mm²",[16,2203,2204,2205,2208,2209,2211],{},"Voor bestaande delen is Deel 8 relevant. Voor elektrische installaties waarvan de uitvoering ter plaatse vóór ",[19,2206,2207],{},"17 mei 1986"," werd aangevat, mag onder de voorwaarden van de afwijkingsbepaling een EMCB- of EMCVB-leiding van ",[19,2210,222],{}," in dienst blijven wanneer ze deel uitmaakt van een kring zonder stopcontacten. De beschermingsinrichting moet aangepast zijn aan de doorsnede. Dit is een overgang voor bestaande installaties, geen voorschrift om vandaag 1 mm² nieuw te leggen. De exacte bestaande toestand, datum en documentatie moeten bij een controle aantoonbaar zijn.",[24,2213,2215],{"id":2214},"spanningsval-3-en-5-zijn-geen-arei-grens","Spanningsval: 3% en 5% zijn geen AREI-grens",[16,2217,2218,2219,1962,2222,2225],{},"Voor een voorcontrole worden vaak ",[19,2220,2221],{},"3% voor verlichting",[19,2223,2224],{},"5% voor andere eindkringen"," gebruikt. Dat zijn nuttige ontwerp- of rekenaannames, maar geen percentage dat AREI 5.2.5 als harde algemene grens voorschrijft. De bepaling verwijst naar de regels van het vak. Noteer daarom duidelijk dat 3% en 5% een onverbindende voorafgaande toets zijn. Bij een lange leiding, een motor, een laadpunt of gevoelige apparatuur kan een berekening volgens de concrete omstandigheden een grotere doorsnede vragen.",[24,2227,2229],{"id":2228},"praktische-vraag-een-oude-zekering-vervangen","Praktische vraag: een oude zekering vervangen",[16,2231,2232],{},"Bij een bestaand circuit moet eerst worden vastgesteld welke leiding werkelijk ligt, hoe ze is geplaatst, welke belasting wordt verwacht en welke afwijkingen voor het bouwjaar gelden. Daarna kunnen de kolommen van Tabel 4.11 worden geraadpleegd. Voor 2,5 mm² is 16 A bij een smeltzekering en 20 A bij een automaat de tabelmatige bovengrens; dat is geen opdracht om de beveiliging te verhogen. Bij 1,5 mm² is de automaatgrens 16 A, maar een stopcontactkring blijft door de regel voor de leidingen beperkt tot de toepasselijke doorsnede.",[24,2234,2236],{"id":2235},"ontwerpen-en-documenteren","Ontwerpen en documenteren",[16,2238,2239,2240,2243,2244,2247],{},"Met ",[459,2241,462],{"href":2242},"\u002F"," kunt u leidingdoorsneden, beveiligingen, kringen en lengtes in de editor vastleggen, een PDF exporteren en een ",[19,2245,2246],{},"oriënterende zelfcheck"," uitvoeren. De tool helpt bij het structureren van gegevens en open punten. Ze is geen volledige dimensionering, geen AREI-conformiteitsattest en geen vervanging van metingen of een officiële keuring.",[24,2249,2251],{"id":2250},"verder-lezen","Verder lezen",[343,2253,2254,2260,2266],{},[346,2255,2256],{},[459,2257,2259],{"href":2258},"\u002Fblog\u002Fspanningsval-berekenen-kabeldoorsnede","Spanningsval berekenen en kabeldoorsnede kiezen",[346,2261,2262],{},[459,2263,2265],{"href":2264},"\u002Fblog\u002Felektrische-keuring","Elektrische keuring in België",[346,2267,2268],{},[459,2269,2271],{"href":2270},"\u002Fblog\u002Feendraadschema-maken","Een eendraadschema maken",{"title":493,"searchDepth":494,"depth":494,"links":2273},[2274,2275,2276,2277,2278,2279,2280,2281,2282],{"id":1847,"depth":494,"text":1848},{"id":1969,"depth":494,"text":1970},{"id":2111,"depth":494,"text":2112},{"id":2156,"depth":494,"text":2157},{"id":2200,"depth":494,"text":2201},{"id":2214,"depth":494,"text":2215},{"id":2228,"depth":494,"text":2229},{"id":2235,"depth":494,"text":2236},{"id":2250,"depth":494,"text":2251},"Lees Tabel 4.11 van AREI Boek 1 V06 correct: de wettelijke bovengrens is niet de volledige kabelberekening. Bekijk ook Tabel 5.1, oude EMCB- en EMCVB-leidingen en spanningsval.","nl",{},"\u002Fblog\u002Fcable-cross-section-breaker.nl",{"title":1832,"description":2283},"kabeldoorsnede-automaat","blog\u002Fcable-cross-section-breaker.nl",[2291,2292,521,2293],"kabeldoorsnede","automaat","elektro-installatie","hfrnk9o1wRZfv92XkZssr_1LAUbCPHNv1orETEcDcek",1788389264359]