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各位同学！6 }1 f* i+ e/ u8 P6 l- U$ C: Y2 @
灯具III 结构除了以下要求外，还有别的要求吗？谢谢！ K9 m8 b5 v$ U1 i% g7 }
c) Class III luminaires may have exposed current carrying parts in the SELV circuit under the
. G4 O8 f [( O0 c. l0 vfollowing conditions. ' J0 e. A0 C& _- C! f9 a
– For ordinary luminaires, the voltage under load does not exceed 25 V r.m.s. or 60 V # R7 G" B' Q3 G- v% h) |
ripple-free d.c. and where the voltage exceeds 25 V r.m.s. or 60 V d.c., the touch 8 ~( v1 T9 w7 p2 I( @, g
current does not exceed:
: P4 \8 S4 E+ y1 Z& M; |) }– for a.c.: 0,7 mA (peak);
& O# F; [$ g) y1 w, E: [+ O( |– for d.c.: 2,0 mA. $ r- z+ y; P, p5 z% V
– the no-load voltage does not exceed 35 V peak or 60 V ripple-free d.c. 1 B' ?% S! M& _/ d% w
If the voltages or currents exceed the values given above, at least one of the conductive
! Z! }- ]; d2 Dparts in the SELV circuit shall be insulated by insulation capable of withstanding a test x( a Z4 w$ [8 g% X9 @' m
voltage of 500 V r.m.s. for 1 min. 0 ]5 H$ m, V0 ` P+ Z
– for luminaires which are other than ordinary, the nominal voltage does not exceed 12 V
) f; d0 Z7 I! _, H8 m6 Yr.m.s. or 30 V ripple-free d.c.
0 ?# L3 F; ^4 W$ j0 X0 d J |
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发表于 2013-1-11 15:16
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