{"id":232,"date":"2019-12-26T17:45:05","date_gmt":"2019-12-26T16:45:05","guid":{"rendered":"https:\/\/www.theta-dresden.de\/?page_id=232"},"modified":"2025-09-30T09:21:41","modified_gmt":"2025-09-30T08:21:41","slug":"internal-arc-fault","status":"publish","type":"page","link":"https:\/\/www.theta-dresden.de\/en\/internal-arc-fault","title":{"rendered":"Internal Arc Fault"},"content":{"rendered":"

in Medium Voltage Switchgear and their Buildings<\/h1>\n

Tar\u00adget:<\/span><\/p>\n

For the oper\u00ada\u00adtors of elec\u00adtri\u00adcal switchgears, the reli\u00ada\u00adbil\u00adi\u00adty of the sys\u00adtem is an essen\u00adtial char\u00adac\u00adter\u00adis\u00adtic. An extrem\u00adly crit\u00adi\u00adcal oper\u00ada\u00adtional con\u00addi\u00adtion is the arc\u00ading load in the event of a short cir\u00adcuit. The pro\u00adtec\u00adtion of per\u00adsons and sys\u00adtems in the case of an arc fault is giv\u00aden great atten\u00adtion by sys\u00adtem man\u00adu\u00adfac\u00adtur\u00aders and oper\u00ada\u00adtors despite the low prob\u00ada\u00adbil\u00adi\u00adty of a fault occur\u00adring. An arc fault in medi\u00adum-volt\u00adage switchgear can lead to con\u00adsid\u00ader\u00adable pres\u00adsure and ther\u00admal stress on the switchgears, the switchgear build\u00ading and endan\u00adger the oper\u00adat\u00ading per\u00adson\u00adnel. Today, the arc resis\u00adtance of fac\u00adto\u00adry-fab\u00adri\u00adcat\u00aded switchgear pan\u00adels is gen\u00ader\u00adal\u00adly ver\u00adi\u00adfied by a type test. For switchgear rooms, DIN<\/span> EN<\/span> IEC<\/span> 61936 Part 1 requires that the inter\u00adnal pres\u00adsure in the event of a short-cir\u00adcuit arc must be tak\u00aden into account in the con\u00adstruc\u00adtion of the building.<\/p>\n

Con\u00adtent:<\/span><\/p>\n