保护通道中在变量器与高频电缆芯间串入一小电容的绝缘耐压水平应为交流______________.

保护通道中在变量器与高频电缆芯间串入一小电容的绝缘耐压水平应为交流______________.

A.2000V,50Hz,1min

B.2000V,50Hz,3min

C.1500V,50Hz,1min

D.1500V,50Hz,2min

正确答案是A