IEC 61534-21-2021 電力軌道系統--第21部分：用于墻壁和天花板安裝的電力軌道系統的特殊要求 Powertrack systems – Part 21: Particular requirements for powertrack systems intended for wall and ceiling mounting

Clause 1 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 is applicable except as follows: 1.1 Addition: This part of IEC 61534 specifies the particular requirements and tests for PT systems intended for mounting on walls and/or ceiling. They may be installed flush or semi-flush, surface mounted, suspended or spaced away from the surface using fixing devices.dition 2.1 2021-07 CONSOLIDATED VERSION INTERNATIONAL STANDARD NORME INTERNATIONALE colour inside Powertrack systems – Part 21: Particular requirements for powertrack systems intended for wall and ceiling mounting Systèmes de conducteurs préfabriqués – Partie 21: Exigences particulières pour les systèmes de conducteurs préfabriqués destinés au montage sur des murs et des plafonds IEC 61534-21:2014-06+AMD1:2021-07 CSV(en-fr) THIS PUBL