Junction isolation switch connector plate for overheating, discoloration, indicating poor contact, contact resistance, maintenance should be open junction isolation switch, the contact surface of the flat file and then sandpapering (but the switch connector plate zinc plated Do removal), Then tighten the screw, and use the spring lock washer. Moving contacts exist beside hammer, screw rotatably fixed contact, or slightly move the position of supporting insulator to eliminate next attack; three-phase different period, you can adjust the screws at both ends of the rod insulators, in order to change the effective length to overcome. The contact pressure between the contacts can be achieved by adjusting the clamping spring, and the extent of the clamp can be used to check the feeler. Contact between the generally coated with Vaseline to reduce friction Xi'an disconnectors, extend life, but also to prevent contact oxidation. When isolating switch is in the off position, the angle of contact between the opened or distance does not meet the requirements should be adjusted by rod insulators. Disconnectors Maintenance 1) Clean the porcelain surface dust, check the porcelain enamel surface off, broken, cracks and signs of flashover, insulators iron, porcelain-binding site is secure. If the damage is serious, it should be replaced; 2) gasoline wipe blade, contacts or fingers on the oil, check whether the contact surfaces clean isolation switch price, mechanical damage, oxidation, and signs of overheating and distortion, deformation and so on; 3) Check the contacts or blade attachments are complete, no damage; 4) Check the connections disconnectors and busbars, wiring circuit breaker is solid, with or without overheating; 5) Check flexible connection parts for impairment, broken shares and so on; 6) Check and clean the operating mechanism and transmission parts disconnectors, and adding an appropriate amount of grease; partial distance 7) Check drive and live part to meet the requirements; localization and braking device is solid, the action is correct ; 8) Check isolation switch base is good, grounding reliability. Vacuum pressure isolation switch isolation switch, Huayi Electric Power (certified), isolating switch is provided by Xian Huayi power plant. Xian Huayi Electric Power Equipment Factory (www.xahy.com) is a leader in Xi'an high-voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Huayi Electric Power leadership with the staff warmly welcome all inquiries negotiations to create Huayi electricity better future.