The main fuse from the melt, housing and bearing three parts, which are key components to control the melt fuse characteristics. Material, size and shape determine the melt fusing characteristics. The melt material is divided into two types of low melting point and high melting point. Low melting point materials such as lead and lead alloys, it is easy to fuse the low melting point, due to its greater resistance, it made a larger cross-sectional dimensions of the melt, fuse metal vapor produced when more capacity is only applicable to low-scoring off the fuse device. Refractory material such as copper, silver, Wuhan high voltage fuse having a melting point, is not easy to blow the fuse, but because of its low resistivity Yichang high voltage fuses, the melt can be made smaller than the low-melting-sectional dimension, when fuse metal vapor produced less suitable for high breaking capacity fuses. The shape of the melt into filaments and two ribbon. Variable cross-section shape change can significantly alter the characteristics of the fuse. There are various fuses fusing characteristic curve, can be applied to the needs of different types of protected objects. 2, replace them melt required: 1) before installing the new melt, melt blown to find out the cause of Hebi high voltage fuses, fuse undetermined reasons, do not try to replace them melt delivery; 2) replacement fuse When the body, to check whether the melt ratings match the device to be protected; 3) replacement of the melt, to check the fuse burns inside of the tube and, if severe burns, should also replace the fuse tube. Porcelain fused pipe damage, not allowed to use other materials pipe instead. When packing melt fuse replacement, pay attention to fill the filler. Huzhou high-voltage fuse fuse _ _ Huayi electricity provided by the Xi'an Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!