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29.1 部分节选:if the construction is such that the distances could be affected by wear, by
1 ^- K) s+ j& G" e/ Edistortion, by movement of the parts or during assembly, the clearances for rated impulse
; x. f/ P: H3 w+ q4 bvoltages of 1 500 V and above are increased by 0,5 mm and the impulse voltage test is not
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. ?' Q. Y) N/ k' _2 J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。% r4 h! f8 j- G1 p
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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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?: w- c/ n" E/ O" Q1 j
注 PCB线路板整体灌胶.
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