IEC 60364-5-523:1983 Electrical installations of buildings. Part 5 : Selection and erection of electrical equipment. Chapter 52: Wiring systems - Section 523 - Current-carrying capacities
1999IEC 60364-5-523:1999 Electrical installations of buildings - Part 5: Selection and erection of electrical equipment - Section 523: Current-carrying capacities in wiring systems
1983IEC 60364-5-523:1983 Electrical installations of buildings. Part 5 : Selection and erection of electrical equipment. Chapter 52: Wiring systems - Section 523 - Current-carrying capacities