Megohm inspection method is to form a terminal connected to the electric cable line, another terminal connected to the motor casing, the shake table megohm observed value of insulation resistance.

• 检查方法是将兆欧表上的一个接线柱接在电泵电缆线上，另一接线柱接在电机外壳上，摇动兆欧表，观察绝缘电阻值。