New progress in coal slurry grouting technology

1 Overview The adverse effects of mining coal mine water project construction progress and quality, the deterioration of the working environment of workers, increase drainage and drainage fees mine, mine production has brought to insecurity, even severe submergence accident, cause life and property.....

What are the characteristics of zinc oxide arrester?

Zinc Oxide Arrester is a new arrester developed in the 1970s. It is mainly composed of zinc oxide varistors. Each varistor has a certain switching voltage (called varistor voltage) when it is manufactured. Under normal operating voltage (ie, less than varistor voltage), the varistor has a large va.....