(来学网)变压器绝缘油的绝缘性能要求是
  • A.
    (来学网)2.5kV/3.5mm
  • B.
    (来学网)3.5kV/2.5mm
  • C.
    (来学网)2.5kV/2.5mm
  • D.
    (来学网)2.5kV/1.5mm
  • E.
    (来学网)3.5kV/1.5mm