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60598-1:2008 & 2012:
1 h @: C) M7 w( v+ m, I$ k# ~3 }SELV (safety extra low voltage)7 }3 P2 y( \0 A
ELV in a circuit which is insulated from the mains supply by an insulation not less than that between the primary and secondary circuits of a safety isolating transformer according to IEC 61558-2-6 or equivalent
" O4 W4 j5 ~& O" p' X- C, x' bNOTE Maximum voltage lower than 50 V a.c. r.m.s. or 120 V ripple free d.c. may be specified in particular requirements, especially when direct contact with current-carrying parts is allowed.1 t/ C5 k. D' k( L D5 r8 _
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GB7000.1-2007/IEC60598-1:2003
: ~* f: d! j( N, LSELV :在通过有单独绕组的安全隔离变压器或转换器与供电电源隔离开来的电路中,导体之间或在任何导体与地之间,不超过50V 的交流有效电压值(注直流电压数值正在考虑中)
+ o% I- R7 j1 l' H注:假定任何变压器或转换器在其额定电源电压下工作,无论是在满载或空载,都不应超过此电压限值。 |
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