Lightning and lightning protection products The function of the lightning arrester is to protect various electrical equipment in the power system from lightning electrical overvoltage, operating overvoltage, power frequency transient overvoltage and damage. The types of lightning arresters mainly include protection gaps, valve type lightning arresters and zinc oxide lightning arresters. The protection gap is mainly used to limit atmospheric overvoltage, and is generally used for protection of power distribution systems, lines, and substation incoming segments. Valve type lightning arrester and zinc oxide lightning protection device are used for protection of substations and power plants. The system is mainly used to limit atmospheric overvoltage in 500KV and below, and will also be used to limit internal overvoltage or internal in ultra high voltage system. Backup protection for overvoltage. Tape Measure is a commonly used tool in daily life. What you often see is the Steel Tape Measure, which is commonly used in construction and decoration, and is also one of the essential tools for the family. Divided into fiber tape measure, tape measure, waist measurement and so on. Luban ruler, Feng Shui ruler, and Wen Gong ruler are also steel tape measures. Inch Tape Measure,Tape Ruler Measurements,Tape Measure Inches,Imperial Tape Measure Shangqiu Yusheng Tools co.,Ltd. , https://www.cnystools.com
Lightning and lightning protection products