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各位同学！( S* _* X8 N8 z5 h5 O! p& {# ~* S
灯具III 结构除了以下要求外，还有别的要求吗？谢谢！ 6 C$ \8 n3 l9 ^+ Y4 f: B* Y2 {/ {
c) Class III luminaires may have exposed current carrying parts in the SELV circuit under the
7 m# O+ i$ M9 I2 v5 Vfollowing conditions.
# D: o" j( a, c" \% `– For ordinary luminaires, the voltage under load does not exceed 25 V r.m.s. or 60 V
* y; e3 g! n. W8 u3 jripple-free d.c. and where the voltage exceeds 25 V r.m.s. or 60 V d.c., the touch
: A$ ^8 z) ~9 K% Ocurrent does not exceed:
) l* s1 }9 M( C5 I7 c– for a.c.: 0,7 mA (peak); + q A+ w! z1 Z# G! s/ I
– for d.c.: 2,0 mA.
Y4 t+ p% n b/ t3 s" E% {& y- q) h– the no-load voltage does not exceed 35 V peak or 60 V ripple-free d.c.
# k6 o7 K5 H/ d0 b& T7 }* c If the voltages or currents exceed the values given above, at least one of the conductive
4 `2 y8 h0 K# n/ z, ^; Uparts in the SELV circuit shall be insulated by insulation capable of withstanding a test
4 T. c- h7 ^) Y' Q- Q) L$ ^voltage of 500 V r.m.s. for 1 min. # i2 b. j+ @. q' e
– for luminaires which are other than ordinary, the nominal voltage does not exceed 12 V 4 z7 q h& ^6 i- {5 i+ I
r.m.s. or 30 V ripple-free d.c.
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