8.2.3 For protection against electric shock, the following additional requirements apply:
c) Class III luminaires may have exposed current carrying parts in the SELV circuit under the
following conditions.
– For ordinary luminaires, the voltage under load does not exceed 25 V r.m.s. or 60 V
ripple-free d.c. and where the voltage exceeds 25 V r.m.s. or 60 V d.c., the touch
current does not exceed:
– for a.c.: 0,7 mA (peak);
– for d.c.: 2,0 mA.
– the no-load voltage does not exceed 35 V peak or 60 V ripple-free d.c.
If the voltages or currents exceed the values given above, at least one of the conductive
parts in the SELV circuit shall be insulated by insulation capable of withstanding a test
voltage of 500 V r.m.s. for 1 min.
– for luminaires which are other than ordinary, the nominal voltage does not exceed 12 V
r.m.s. or 30 V ripple-free d.c. 很奇怪。。。商检有这个选项的。。。。
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