Install high and low voltage switch cabinet method step.
First, take the inspection, to open packaging switch cabinet, to be in accordance with the design and package insert carefully check on quantity, specifications, check whether meet the requirements, high voltage switch cabinet shell if there is any damage, corrosion situation, check the attachment spare parts are complete. After unpacking, check the factory certificate, copy and internal wiring diagram and other technical documents. After the high voltage power distribution cabinet is opened, the distribution cabinet number shall be numbered according to the design drawing, and then it will be moved to the installation position in the substation.
After the switch cabinet is placed on the channel steel, the thickness of the high pressure cabinet will be adjusted by using the thin cushion iron, and then one of them will be used as the benchmark, and the rest will be adjusted, so that all the high pressure cabinets will be uniformly and evenly spaced. After the bolt is fixed, the cabinet is maintained between 2 and 3~ cracks. Finally, the cabinet is permanently fixed to the base channel with a fixed bolt or welding method. For the sake of aesthetics, the weld shall be welded to the inside of the cabinet, and not less than 4 places, each of which is 80 -- 00~.
Connect the bus. The main bus on the switchboard, the meter is provided by the switch factory, and can be made according to the design pattern at the construction site. Lady mistress line connection, and lead the busbar and busbar connected to the instrument connected to the bolt connection, in the bus bar junction surface should be coated with electricity compound, the degree of screw down the bolt and the junction surface connection status, by torque wrench screw down the bolt according to the prescribed torque value.
The installation of hand-operated high voltage switchgear. The installation method of the fixed high voltage switchgear is basically the same, and the difference is to ensure the interchangeability of the handcart. Each handcart type of the dynamic contact must be adjusted to be consistent and close to the center of the moving and static contact, to ensure interchangeability. Check the plug of secondary loop of high voltage distribution cabinet and auxiliary contact, and welding is reliable. The electrical or mechanical locking device is correct, so that the handcart can not be pulled out when the closing position. The safety barrier is open and closed, and can move in and out of the car. The grounding device of the handcar is in good contact with the fixed frame of the high voltage distribution cabinet. High and low voltage switch cabinet internal control cable fixed firmly, do not affect the mobile mobile.
Electrical equipment, appliances as well as the maintenance of the charged metal parts grounded feeder installation shall meet the following requirements: compact connection, strong, maintenance of ground wire section to choose right, should be part of anticorrosive paint evenly without omission. The route goes to the right, the color standard is true, the coating does not pollute the equipment and the building. Check the distribution cabinet "5 prevent" chain, the function is complete and reliable.