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29.1 部分节选:if the construction is such that the distances could be affected by wear, by
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voltages of 1 500 V and above are increased by 0,5 mm and the impulse voltage test is not* a; G1 ?$ \! S& R" [
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1 `5 C5 W Y" p& g; p$ W/ _- [8 v: z标准中说假如距离受磨损、变形、装配等影响时,1500V脉冲电压或以上所对应的电气间隙需要增加0.5mm。
4 J" c( j. l+ u e在实际操作中,大家如何定义"距离受磨损、变形、装配等影响".$ g" a; D* S) k) l) Z& N; J9 p
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" B& g3 @+ k$ ?9 ]) g% c目前由于是宁可杀错不放过的态势,脉冲电压1500V以上都增加了0.5mm,我想听听大家是怎么操作的?3 A/ s7 a* E5 R8 Q7 I# A6 j$ B
注 PCB线路板整体灌胶.
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