IEC 60364-4-473:1977+AMD1:1998 CSV
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
01-08-2001
English - French
05-03-1999
FOREWORD
MEASURES OF PROTECTION AGAINST OVERCURRENT
1 Measures of protection against overload
1.1 Position of devices for overload protection
1.2 Omission of devices for protection against overload
1.3 Position or omission of devices for protection
against overload in IT systems
1.4 Cases where omission of devices for overload
protection its recommended for safety reasons
1.5 Overload protection of conductors in parallel
1.5.1 Equal current sharing between conductors
1.5.2 Unequal current sharing between conductors
2 Protection against short circuit
2.1 Position of devices for short-circuit protection
2.2 Alternative position of devices for short-circuit
protection
2.3 Omission of devices for short circuit protection
2.4 Short-circuit protection for conductors in parallel
3 Requirements according to the nature of the circuits
3.1 Protection of phase conductors
3.2 Protection of the neutral conductor
3.2.1 TT or TN systems
3.2.2 IT systems
3.3 Disconnection and reconnection of the neutral
conductor
Annex A (informative) Protection of conductors in
parallel against overcurrent
A.1 Introduction
A.2 Overload protection of conductors in parallel
A.3 Short-circuit protection of conductors in parallel
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