Maintenance of isolating switch

1. Clean the dust on the surface of the porcelain parts, check whether the surface of the porcelain parts is glazed, damaged, whether there are cracks and flash marks, and whether the iron and porcelain joints of the insulator are firm. If it is seriously damaged, it should be replaced.

2. Use gasoline to clean the oil stains on the blades, contacts or fingers, and check whether the contact surfaces are clean, whether there are mechanical damage, signs of oxidation and overheating, as well as distortion and deformation.

3. Check whether the accessories on the contacts or blades are complete and damaged.
4. Check whether the leads connecting the isolating switch, the busbar and the circuit breaker are firm and whether there is overheating.

5. Check whether the soft connection parts are damaged or broken.

6. Check and clean the operating mechanism and transmission parts, and add an appropriate amount of lubricating grease.

7. Check whether the distance between the transmission part and the live part meets the requirements; Whether the positioner and braking device are firm, and whether the action is correct.

8. Check whether the base of the isolating switch is in good condition and whether the grounding is reliable.