Elevator trunking operation process (5)

Trunking installation
(1) Installation requirements for the trunking: 1 inside and outside of the slot should be smooth and flat, without ribs, and there should be no distortion or warping, and all kinds of accessories. The connection of the 2 wire trough should be flat, the joint should be tight and straight, the groove cover should be flat after installation, no warping angle, and the position of the outlet □ is accurate. 3 When laying in the ceiling, if the ceiling cannot stand, there should be a manhole. 4 It is not allowed to wipe the slot of the wall and the hole in the wall. All the non-conductive parts of the 5 wire troughs should be connected and bridged to each other to form a continuous conductor and be grounded as a whole. After the 6-slot installation, it should be horizontal and vertical, the horizontal and vertical deviations are not more than 2/1 000, the maximum deviation of the full length should be no more than 20mm, the connection between the trunking and the trunking should be straight, and the slot cover should be full. After covering, it should be flat without warping.
(2) Trunking installation: The connecting line of the linear section of the 1 line slot is connected by bolts, nuts, flat washers and spring washers, and the joints should be tightly leveled. When the 2 line slots are crossed, when turning and "D" is connected, the single-pass, two-way, three-way, four-way or planar two-way, flat three-way, etc. should be used for the flexible connection, and the junction box should be provided with a junction box or The wire connector is placed inside the electrical appliance. When the 3 line slot is connected with the box, box, cabinet, etc., the incoming line and the outgoing line □ should be connected by the foot and fastened with bolts, and the terminal should be installed with plugging. When the 4 slots are installed side by side, the slot cover should be easy to open. The bolts of the 5-wire groove foot plate should be stable, and the exposed slot cover should be no more than 10mm.