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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
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* s+ `( z1 D/ }3 J/ P# I7 R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。2 Y8 R* _( N- h# c7 }' o! s" A; h4 a
在实际操作中,大家如何定义"距离受磨损、变形、装配等影响".
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7 W* N/ A e3 @* o7 k% j- t: S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?
: H' E1 y& H6 ^注 PCB线路板整体灌胶.
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