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 isolation switch long-term wholesale, if the operating current is large, the temperature rise exceeds the allowable value, it will make it elastic variation, the vicious cycle of load isolation switch, eventually leading to burning, which is caused by contact heat the main reason. In addition, the contact silver coating process is poor, easy to wear exposed copper isolation switch, the contact surface is dirty gas pressure isolation switch, contact insert enough, clamp bolt corrosion caused by the contact surface pressure is reduced and so is the cause of fever of porcelain Fracture need for comprehensive treatment, we must first ensure the overall structure of the isolation switch, followed by even strengthen the porcelain manufacturer of choice, you can specify an isolation switch production companies use superior quality and good reputation manufacturer of porcelain products. In addition, it can conduct non-destructive testing technology, porcelain regularly tested. Operating personnel to strengthen surveillance, particularly the observation of porcelain glued surface. To the right way when you run the operation, such as when operating difficulties should not by force. High voltage isolation switch isolation switch _ _ Nanning Xi'an by the Xi'an high Huayi power plant. 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!