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没看过GB的, IEC 61347-1 以及 IEC 60598-1 都是满足下面2个条件一个就OK：
: r% o: Q m$ K {- [. u2 m' C1. 25Vac or 60Vdc1 Q$ N; U# W; E
2. 不满足1的条件就touch current 有要求.* T X" f1 r# M
最新版的598 还分了IP20灯具跟非IP20灯具, M7 k/ K" p! U' e$ i2 @
非IP20 12AC or 30VDC6 y3 e+ g/ ]) ]
10.4 Controlgears providing SELV may have accessible conductive parts in the SELV circuit;# f! ^ a! K: i; o
if: the rated output voltage under load does not exceed 25 V r.m.s. or 60 V d.c. ripple free d.c." E9 `3 q% `! i' R( A* Q: v
where the voltage exceeds 25 V r.m.s. or 60 V ripple free d.c., the touch current does not# m& G P$ d$ S9 u
exceed:2 F1 R# l0 R: `% [
– for a.c.: 0,7 mA (peak);
: V! ~! i; l1 Q3 {– for d.c.: 2,0 mA;/ g$ h9 G* ?5 k! u3 @/ Z. D" H# I2 c) l
– the no-load output does not exceed 35 V peak or 60 V ripple free d.c.
0 E" D& m$ ~* |
- D' }* s \) w( m4 t; t% @c) SELV circuits may have exposed current carrying parts under the following conditions.% Y2 L6 }1 C: {% A1 ]8 F. N" C
– For ordinary luminaires:,
' B: R# V, Q# {• the voltage under load does not exceed 25 V r.m.s. or 60 V ripple-free d.c. and
; i# r7 N* T; d/ L# O• the no-load voltage does not exceed 35 V peak or 60 V ripple-free d.c.4 v- I% i* C* c+ P% m
where the voltage exceeds 25 V r.m.s. or 60 V d.c., the touch current does not exceed:
; d$ g4 n2 p: ?) \• for a.c.: 0,7 mA (peak);
" C* ^9 T5 `$ I% v0 S• for d.c.: 2,0 mA.
) @% H# f6 N0 N2 V y" B% Y( ]. qIf the voltages or currents exceed the values given above, at least one of the conductive9 G& V0 T( w7 O# x6 r5 G: M; v
parts in the SELV circuit shall be insulated by insulation capable of withstanding a test2 Y9 ]0 Z" B0 K3 S# `
voltage of 500 V r.m.s. for 1 min.8 L. H$ Q% @2 `2 Z
– For luminaires which are other than ordinary the nominal voltage (under load and under
2 W6 C, F( U8 f# Rno load) does not exceed 12 V r.m.s. or 30 V ripple-free d.c.. When the luminaire is* Z8 K8 y) Y0 y* A5 } F
opened for light source replacement, the voltage limits for ordinary luminaires are9 ^- ~5 r& v% [* ^& n2 G' L. {
applicable (for parts only accessible during maintenance) |
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发表于 2015-12-23 16:30
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