HD 384.5.523 S1:1991

Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Chapter 52: Wiring systems - Section 523: Current-carrying capacities HD 384.5.523 S1:1991

Scope

The requirements of this section are intended to provide for a satisfactory life of conductor and insulation subjected to the thermal effects of carrying current for sustained periods in normal service - Other considerations affect the choice of cross-sectional area of conductors, such as the requirements for protection against electric shock (see Chapter 41) protection against thermal effects (see Chapter 42), overcurrent protection (see Chapter 43), voltage drop (see Section 52...), and limiting temperatures for terminals of equipment to which the conductors are connected - For the time being, this section relates only to non-armoured cables having a nominal voltage not exceeding 0.6/1 kV