The bus duct bracket has to be firmly installed, and the bus duct should be correctly placed according to the segment sequence number, phase sequence, number, direction and device mark, and when the sections are connected, the adjacent section of the bus duct should be aligned, and the conductor and shell of the bus duct should not accept mechanical stress after the connection.
Articulation Process:
1. First check whether the conductor connection surface at one end of the bus duct and the connector are damaged, and after confirming that there are no drawbacks, the two bus ducts should be docked to the connector busbar, and the conductor of the bus duct should be pierced into the connector, and the torque wrench should be used to lock it after ensuring that it is in place;
2. For the butted bus duct, the end parts of the two bus duct conductors that need to be connected should be aligned parallel to each other, and then the copper connector and the insulating partition should be pierced into the interphase gap at the end of the bus bar (a copper connector is clamped on the left and right sides of each phase busbar, and an insulating partition is placed between the copper connectors. After confirming that there are no defects, penetrate the insulating bolts, and pay attention to whether the connecting holes of the copper connector, bus end, and insulating partition are aligned, and whether the copper connector and insulating partition are stuck in place, and tighten the bolts.
3. Bolt tightening torque (M10 bolt torque value 17.7-22.6N. M, M12 bolt torque value 31.4 - 39.2N. M, M14 bolt torque value 51.O - 60.8 N.M, M16 bolt torque value 78.5 - 98.IN. M)。 Check with O.1 mm feeler gauge, the plugging degree is less than 10mm to qualify, tighten the left and right side plates and the upper and lower cover plate screws.
4. After the bus duct is fully connected, it is necessary to check the grounding resistance with the 1Ω file of the multimeter, and the resistance value is less than O.1Ω to ensure the grounding requirements.
5. Before the bus duct plug-in box device, the safety baffle at the bus duct jack should be opened, and the switch in the box should be pushed to the OFF disconnection position first, and the plug-in box pins should be pierced into the bus duct from the bus duct socket in phase order, and ensure that the plug is in place. It is forbidden to plug and unplug with electricity! After plugging the box device, the front and rear claw clampboards should be fixed on both sides of the bus duct, and the screws should be tightened. When the plug-in box with a large switch is installed vertically, a load-bearing arm should be installed at the bottom; When the horizontal device is installed, a load-bearing hoop should be installed.
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