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各位同学!
6 F; X: u4 O0 Y. l) [, ~- ~灯具III 结构除了以下要求外,还有别的要求吗?谢谢!
( k' I1 h B' n- m) Hc) Class III luminaires may have exposed current carrying parts in the SELV circuit under the ( B7 x* d$ a! W' F
following conditions.
$ P: O+ M( l* W0 \2 V0 m, _: l– For ordinary luminaires, the voltage under load does not exceed 25 V r.m.s. or 60 V 2 d8 M& n5 {& @: {' G
ripple-free d.c. and where the voltage exceeds 25 V r.m.s. or 60 V d.c., the touch
8 J3 R8 q% l, O" M& ]6 x" S# i6 c! Rcurrent does not exceed: ! n9 q6 ~. W- Y, m& O+ L
– for a.c.: 0,7 mA (peak); 2 p- @" U5 J7 X
– for d.c.: 2,0 mA.
# C! [" K$ w" T7 @8 y) W' B– the no-load voltage does not exceed 35 V peak or 60 V ripple-free d.c. " u4 S. g5 t! B. Z2 a4 j6 {, ?/ i x4 w
If the voltages or currents exceed the values given above, at least one of the conductive
8 K( J7 y3 h7 d( F4 \. Z) E( [parts in the SELV circuit shall be insulated by insulation capable of withstanding a test 5 H0 P" y% K0 `# R* \
voltage of 500 V r.m.s. for 1 min.
- ]$ R' [/ U! G# A& P0 e- R) D! B– for luminaires which are other than ordinary, the nominal voltage does not exceed 12 V
2 o/ S' g9 }' F8 [+ k6 xr.m.s. or 30 V ripple-free d.c.
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