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IEC 60364-4-43 Ed. 4.0 b:2023
M00001236
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IEC 60364-4-43 Ed. 4.0 b:2023 Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent
standard by International Electrotechnical Commission, 07/01/2023
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This part of IEC 60364 provides requirements for:
– protection of live conductors, PEN conductors, PEM conductors, and PEL conductors against the harmful effects caused by overcurrent;
– coordination of measures for protection against overcurrent.
NOTE 1 The requirements of this document do not take account of external influences
NOTE 2 Protection of conductors according to this document does not necessarily protect the equipment connected to the conductors.
NOTE 3 Flexible cables connecting equipment by plugs and socket-outlet to fixed installations are not part of the scope of this document and for this reason are not necessarily protected against the harmful effects caused by overcurrent.