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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：) e+ Z% b1 Y) P
1. 25Vac or 60Vdc
' J2 f: s3 W+ h: @2. 不满足1的条件就touch current 有要求.
* p1 F6 x0 C& f- X$ X, A最新版的598 还分了IP20灯具跟非IP20灯具,5 a* _4 W- { I$ \ F
非IP20 12AC or 30VDC1 |5 N7 L8 S1 x$ \8 u8 Q$ m. B
10.4 Controlgears providing SELV may have accessible conductive parts in the SELV circuit;& j$ v# o! o( Y* ?+ u3 W" r/ E
if: the rated output voltage under load does not exceed 25 V r.m.s. or 60 V d.c. ripple free d.c.3 ^6 S# V& n, R2 J
where the voltage exceeds 25 V r.m.s. or 60 V ripple free d.c., the touch current does not# ?2 \$ W- h, `$ f
exceed:
, W* d. U3 y2 ~– for a.c.: 0,7 mA (peak);, W! `* D2 o W$ J/ U* Q' `4 K
– for d.c.: 2,0 mA;* Z$ Z) Q0 [. @5 a* y% l/ u! R& d
– the no-load output does not exceed 35 V peak or 60 V ripple free d.c.
; A& e! q0 N/ R& a$ J0 \: V7 M
c) SELV circuits may have exposed current carrying parts under the following conditions." u3 k5 _) d: U, a
– For ordinary luminaires:,
1 B5 K) o7 V. h• the voltage under load does not exceed 25 V r.m.s. or 60 V ripple-free d.c. and( e9 i: \, r0 Z, G. O
• the no-load voltage does not exceed 35 V peak or 60 V ripple-free d.c.4 Y- d! Q9 X/ D; ~: w2 ?
where the voltage exceeds 25 V r.m.s. or 60 V d.c., the touch current does not exceed:
' Z _$ ^1 r4 I( y& Y• for a.c.: 0,7 mA (peak);' P0 }6 x. k* n) F( _/ X# ?9 J
• for d.c.: 2,0 mA.
# O% U5 [: E! [ d& cIf the voltages or currents exceed the values given above, at least one of the conductive
5 ?8 J( A1 d2 L$ y' N# jparts in the SELV circuit shall be insulated by insulation capable of withstanding a test1 [% o! d: |% L% t, j6 j
voltage of 500 V r.m.s. for 1 min.
1 v9 ^" P* u( i5 R+ k– For luminaires which are other than ordinary the nominal voltage (under load and under
- U; W) U1 F0 N& Gno load) does not exceed 12 V r.m.s. or 30 V ripple-free d.c.. When the luminaire is
- E8 s0 D6 k/ ]0 g9 nopened for light source replacement, the voltage limits for ordinary luminaires are
( i! x9 y8 N {applicable (for parts only accessible during maintenance) |
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发表于 2015-12-23 16:30
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