BTLY挤铝护套电缆外径 btly电缆铝护套两头都要接地吗？

NG-A(BTLY)是什么电缆 NG-A(BTLY)是一种铜管护套替换成铝管护套的柔性矿物质绝缘电缆。NG-A(BTLY)电缆在安装完毕后能够保证32313133353236313431303231363533e59b9ee7ad94313...