Resettable fuse: using metallic sodium as a melt, having high electrical conductivity at room temperature. When the circuit is short-circuit fault, short-circuit current rapid vaporization temperature of sodium, sodium vaporous high impedance, and thus limits the short circuit current. After the disappearance of the short circuit current high-voltage fuse Qingdao, the temperature dropped, sodium metal restore the original good conductive properties. Resettable fuse can short-circuit current limiting fuses, not really breaking the circuit. The advantage is that the melt need not be replaced and can be reused. Weihai high-pressure melt blown fuses, fuse must carefully analyze the reasons for Jinan high-voltage fuse, the possible reasons are: 1) short-circuit fault or overload fuse in normal operation; 2) Melt the use of time is too long, the melt due to oxidation or the operation temperature is high, the melt characteristics change Misjudgement; 3) the melt equipped with mechanical damage, so that the cross-sectional area decreases to cause misjudgment in operation. Liaocheng high voltage fuse | Huayi Electric Power (certified) | fuses 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.