Insulation refers to a material that wraps around or covers an electrical element to protect the electrical element from the environment. Via touching or rubbing or corrosion. 电气 什么是selv和pelv？felv是什么意思保护特低电压pelv (protective extra low voltage, 缩写 pelv) ，只作为保护接地系统的安全特低电压用防护。安全特低电压 selv (safety extra low.
Insulation Board At Menards
电介质；绝缘体 [网络] 介电质；介质 [专业] 介电 [电子、通信与自动控制技术]；介电 [化学]；介质 [物理学] insulation n.
