Duct Bank Conduit Spacers (5063-DB)— 管道组导管垫片 - 地下电气管道组导管垫片(用于预制电气地下建筑) - 电气承包商利用地下管道组导管垫片和钻孔垫片来安装沟槽/套管内的导管线路。电气管道组垫片和钻孔垫片可让电信和电力公用事业提供商快速轻松地在沟槽内安装地下线路,以便在道路、铁路线或任何其他结构下方保持...
Conductors on roofs and the connections of air-termination rods may be fixed to the roof using both conductive or non-conductive spacers and fixtures. The conductors may also be positioned on the surface of a wall if the wall is made of non-combustible material. Recommended fixing centers for...