1) The groove is smooth without distortion, the inner wall is free from burr, the joint is tight and straight, and all kinds of accessories are complete.
2) The joint of the groove shall be flat, the joint shall be tight and straight, the groove cover shall be flat, there shall be no warp Angle, and the outlet position shall be correct.
3) When the wire slot passes through the deformation joints, the wire slot itself shall be disconnected, and the wire slot shall be connected with the connecting plate within the wire slot, which shall not be fixed, and the protective ground wire shall have a compensation allowance. The wire slot CT300*100 shall be fixed with the horizontal anchor for 1 bolt, and the wire slot CT400*100 or above shall be fixed with 2 bolts.
4) All non-conductive parts of the non-metallic wire slot should be connected and bonded accordingly to make them into a whole and be connected as a whole.
5) For the line trenches laid in the shaft and those crossing different fire zones, fire isolation measures shall be set according to the design requirements.
6) The length of the steel groove at the straight end is more than 30m with expansion joints, and the compensation device is set at the deformation joints across the cable groove.
7) The metal cable trough and its support shall be connected with the ground (PE) or zero (PEN) main line at no less than 2 parts of the whole length.
8) The two ends of the connecting plates between the channels of non-galvanized cables shall be bonded to the copper conductor ground wire, and the minimum allowable cross-sectional area of the ground wire shall not be less than BVR-4mm.
9) The two ends of the connecting plate between the slots of the galvanized cable shall not be bonded to the ground wire, but the two ends of the connecting plate shall not be less than two connection fixing bolts with anti-loosen nuts or gaskets.
