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根据60950标准2.2.3 Voltages under fault conditions: 3 b8 z! n$ N: l
Except as permitted in 2.3.2.1 b), in the event of a single fault (see 1.4.14), the voltages between
) |' V4 S* f6 ~& F* Dany two conductors of the SELV CIRCUIT or CIRCUITS and between any one such conductor and earth
/ t" J0 o# A+ ]; o0 o(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.
6 w7 f4 R# q, z% `Moreover, the voltage shall not exceed 71 V peak or 120 V d.c., (V2 in Figure 2E). : i2 p+ h# y, M+ F) c
, m, \5 ^- w9 q9 Y- T7 Z, e, {. z0 R1 `& N; B
就是说60950故障条件下0-200ms之内可是71V peak 或者120V dc。
( p$ k2 W9 o' u& A& ]200ms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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