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Protection against electric shock in low-voltage installations by the automatic disconnection of the supply must be provided in compliance with applicable national or international standards. Such regulations take into account different earthing types for installations. To realize the protection against indirect contact, the disconnection of the supply must occur within a permissible safe time. To...
Protection against electric shock in low-voltage installations by automatic disconnection of the supply must be provided in compliance with applicable national or international standards. Such regulations (e.g. National Electrical Code in the U.S., IEC 60364, BS 7671 in the U.K., etc.) take into account the earthing system of the installation, such as TT, TN-C-S, or IT systems. To realize the protection...
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