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根据60950标准2.2.3 Voltages under fault conditions: , L b( n9 W- N- l/ E2 |: {8 i
Except as permitted in 2.3.2.1 b), in the event of a single fault (see 1.4.14), the voltages between
3 R! ]! L% f; Q) p& E6 Gany two conductors of the SELV CIRCUIT or CIRCUITS and between any one such conductor and earth 1 t4 F! E- Z7 F- i
(see 1.4.9) shall not exceed 42,4 V peak, or 60 V d.c. (V1 in Figure 2E) for longer than 200 ms.
5 E3 X/ M8 O1 q6 B6 T+ XMoreover, the voltage shall not exceed 71 V peak or 120 V d.c., (V2 in Figure 2E). 8 ?3 _, n( k3 j# d8 }/ p8 x
+ A( h# U( q" M( K* X' T8 D& t& J. u I; R4 f# |; N
就是说60950故障条件下0-200ms之内可是71V peak 或者120V dc。
! N( g) ?' p' R: I7 s200ms之后电压时间内的故障电压不能超过42,4 V peak, or 60 V d.c.。 |
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