CLC/TC 64/WG 05 - Selection and erection of electrical equipment – Common rules

2013-06-18: Publication allocated to svandreissche@cencenelec.eu
2021: CLC legacy converted by DCLab NISOSTS

Deals with the selection of equipment and its erection. It provides common rules for compliance with measures of protection for safety, requirements for proper functioning for intended use of the installation, and requirements appropriate to the external influences foreseen. The main changes with respect to the previous edition are listed below: - corrections of misprints in Table 51 based on Table 321 derived from the old Part 3; - introduction of a new Clause 516 dealing with measures for mitigation of protective conductor currents; - introduction of an informative Annex B extracted from IEC 61140 in Annex E of this standard. Annex B of IEC 61140 deals with protective conductor currents.

This Harmonization Document applies to the identification of cores of rigid and flexible cables and cords for which the rated voltage does not exceed the upper limit of Voltage Band II (according to HD 193). This HD applies to: - electrical installations, - distribution systems, - supplies to fixed or mobile current-using equipment and - cords for portable equipment. NOTE For distribution systems, the identification by numbers is permitted. This HD is not intended to apply to: - cables or insulated conductors used in the internal wiring of current-using equipment or factory built assemblies manufactured according to their own European Standards, or - cables and cords used in d.c applications, or - cables and cords having more cores than the number indicated in Tables 1 and 2, or - circuits intended for uses other than solely the supply of power to equipment, or - covered overhead lines and insulated overhead conductors according to HD 626.