Bus duct laying mobile measures using building structure

Enclosed bus duct installation overall structure should be horizontal even vertical, horizontal laying off the ground when the installation height not less than 2.2 m, the vertical run away from the ground 1.8 m above, the corner of bus duct and the plug box joint should be added support. Stents neat rows when installation should be uniform spacing, the distance between the support should not be greater than 2 m. When the bus duct terminal box, head box impending bracket, should be adopted on the walls, roof support must be fixed with two bolts, expansion bolts should add flat washers and spring washers.Vertical through the roof installation, bus duct should be used through the floor of u-steel support fixed. Enclosed bus duct cross building expansion joints and settlement joints, adopted the structure of mobile measures, to prevent the bus duct joint horizontal movements cause fracture, affect the normal power supply and distribution of the bus duct.