Junction isolation switch connector plate for overheating, discoloration, indicating poor contact, contact resistance, repair should open a connection point, the contact surface of the flat file and then sandpapering (but the switch connector plate zinc plated not removed), then Tighten the screws and use a spring lock washer. Moving contacts exist beside hammer, screw rotatably fixed contact, or slightly move the position of supporting insulator isolation switch to eliminate next attack; three-phase different period, you can adjust the screws at both ends of the rod insulators, in order to change its 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, extend life, but also to prevent contact oxidation. When the isolation switch is in the off position Xi'an isolation between switch contacts opened angle or distance when non-compliance, should be adjusted by rod insulators. Conductive circuit overheating. Operation often occurs abnormal heat conductive loop phenomenon, mostly due to the static compression spring finger fatigue, deterioration of the characteristics, static finger contacts and long-running unilateral increase in contact resistance caused. Run fingers because of static compression spring is compressed long-term, if the operating current is large, the temperature rise exceeds the allowable value, it will make it elastic variation isolation switch, a vicious cycle vacuum pressure isolation switch isolation switch, eventually leading to burning, this Fever is the main cause of the contacts. In addition, the contact silver coating process is poor, easy to wear exposed copper contact surface is dirty, the contact insert is not enough clamp bolt corrosion caused by the contact surface pressure is reduced and so is the cause of fever caused by high-voltage disconnectors | disconnectors | Xi'an high by the Xian Huayi power plant available. Xian Huayi Electric Power Equipment Factory (www.xahy.com) strong, credible, in the Xi'an high-voltage circuit breakers and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi electricity into the brilliant and you work for a better future!