标准摘要
Specifies where overload and short-circuit protective devices have to be placed in the run of the conductor. States particular requirements for protection of phase and neutral conductors according to TN, TT and IT systems. Note: -Requirements do not take account of external influences. For application of protective measures in relation to conditions of external influences, see IEC 60364-4-482.
英文名称Electrical installations of buildings. Part 4: Protection for safety. Chapter 47: Application of protective measures for safety. Section 473: Measures of protection against overcurrent