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根据60950标准2.2.3 Voltages under fault conditions: 7 c# y# o( f0 O- j! s+ J, M4 `$ M
Except as permitted in 2.3.2.1 b), in the event of a single fault (see 1.4.14), the voltages between
8 s8 t2 z& [: m0 n* sany two conductors of the SELV CIRCUIT or CIRCUITS and between any one such conductor and earth
! Q9 r/ w2 Y3 g. Q8 K6 n(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. , Y2 q& D* Z0 p+ ]
Moreover, the voltage shall not exceed 71 V peak or 120 V d.c., (V2 in Figure 2E).
( g, X/ Z# v- M9 J6 D# W$ \1 G
2 K1 [. ?3 H1 P3 O9 B( L
' \3 `5 E, W1 O9 k0 [ | m就是说60950故障条件下0-200ms之内可是71V peak 或者120V dc。
: q& X* n- m3 E8 l+ v% V- o200ms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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