1.Normal Current: First we must know the normal current size that flows through the fuse in the circuit used. Usually we have to set a reduction in advance, and then choose according to the following principle: that is, the normal current must be less than the product of the rated current and the...

1) The ambient temperature rise of more than 25 ℃ will reduce the current speed through the recoverable fuse. 2) when the ambient temperature 25 ℃ by the current 100% can restore the fuse online, but if more than twice times the rated current, can restore the fuse will move. 3) The higher the amb...

Common miniature fuses are, for example, glass tubular fuses and flake fuses in cars. As a protective element of electronic equipment, glass tubular fuses are used for a long time, but because of its large size, easy to break, can not achieve automatic installation and other shortcomings, so the ...

There are many types of lightning arresters, including metal oxide arresters, line metal oxide arresters, gapless line metal oxide arresters, fully insulated composite jacket metal oxide arresters, and removable arresters. The main types of arresters are tubular arresters, valve arresters and zin...

1. The current capacity of the zinc oxide arrester is large This is mainly reflected in the ability of lightning arresters to absorb various lightning overvoltages, power frequency transient overvoltages, and operating overvoltages. The current flow capacity of the zinc oxide arrester produced by...

On April 7, qinghai electric power maintenance company completed the 330 – kilovolt li ning Ⅰ, new Ⅱ line lightning arrester installation work, before the thunderstorm season, with the use of new technologies for controlling the transmission line lightning protection, to promote the safe an...