试题与答案

金属氧化物避雷器U1mA初值差不超过()。A.±1% B.±2% C.±3% D.±

题型:单项选择题

题目:

金属氧化物避雷器U1mA初值差不超过()。

A.±1%

B.±2%

C.±3%

D.±5%

答案:

参考答案:D

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