IEC 61534-21 Ed. 1.0被替代
Powertrack systems Part 21: Particular requirements for powertrack systems intended for wall and ceiling mounting
出版：International Electrotechnical Committee
专家解读视频
This standard 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.
CEI EN 61534-21 Ed. 1 (2007) - Identical
NF EN 61534-21:2006 - Identical
BS EN 61534-21:2006 - Identical
DIN EN 61534-21 (2007-06) - Identical
I.S. EN 61534-21:2006 - Identical
VDE 0604-121:2007 - Identical
UNE EN 61534-21:2007 - Identical
SS EN 61534-21 Ed. 1 (2006) - Identical
NEN EN IEC 61534-21:2006 - Identical
PN EN 61534-21:2007 - Identical
OVE/ONORM EN 61534-21:2007 - Identical
