
Specification for degrees of protection of enclosures of switchgear and controlgear for voltages up to and including 1000 V a.c. and 1200 V d.c
出版:British Standards Institution

专家解读视频
System of classification of ability of enclosures to protect against contact with live or moving parts inside, ingress of solid foreign bodies and ingress of liquid, together with proving tests.
© British Standards Institution 2013
Replaces notes:
Replaces appendix B of BS 775:Part 1:1969 and appendix D of BS 4752:1971.
IEC 60144 Ed. 1.0 - Identical