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如果适配器是隔离型的,而且输出满足LPS, o, q/ M% z" B. L/ N+ k0 A
产品的PCB在V-1级或者以上,外壳材料可以是HB等级的,依据IEC/UL 60950-1 4.7.2.2:
5 h; } e" o8 S3 M5 f* E$ O* t) ?, f: L! Q8 ^
The following do not require a FIRE ENCLOSURE:' N- B6 F# f3 \( m) O0 M' t4 H. ?
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0 ?: C& h* g' R7 d* ]- other components in SECONDARY CIRCUITS:
$ j/ Y& g% K4 w6 [: y' `# C3 D• supplied by limited power sources complying with 2.5 and mounted on V-15 |9 m& f) \! c/ Y
CLASS MATERIAL;
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# ?, Z5 I% l3 h0 {9 o! O如果不满足要求,外壳的防火等级就要看Table 4E - Summary of material flammability requirements 的要求了 |
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