Common fault isolation switch cited what? A: The common fault isolation switch are: (1) contact part overheating. (2) ceramic insulation damage and flashover discharge. (3) refusing to pull, closing. (4) the error pull closing. Welcome to inquire buy, thank you for your attention! Disconnectors are equipped with the hand actuator, the general CS6-1 type. Unplug first operation pin, decisive action to open and close rapidly, while careful not to overexert end Texas isolation switch, the operation is completed must use dowel pins sold live in Linyi disconnectors, and visually it is moving contact position to meet the requirements. When using single-pole isolation switch lever insulation, closing should be combined with both sides, after closing phase; sub-gate, the order to the contrary. Zibo isolation switch _ Huayi Electric Power (certified) _ isolating switch is provided by Xian Huayi power plant. Xian Huayi power plant (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. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.