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如果适配器是隔离型的,而且输出满足LPS
, v) K. N/ d- n7 _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:
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The following do not require a FIRE ENCLOSURE:
6 s9 k( g: X1 |$ x5 o2 ]...1 g6 a! j# R" k8 k4 _" O: i
- other components in SECONDARY CIRCUITS:# x5 x% A' ~ g: y& m" B
• supplied by limited power sources complying with 2.5 and mounted on V-1- [& ?. B- m4 e( g5 r6 Y& `* F$ A
CLASS MATERIAL;
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: I7 C' e! u% B6 W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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