Methods and skills of secondary wiring of distribution cabinet

Requirements for secondary wiring construction: construction according to the drawing and correct wiring; Wires and electrical components shall be connected by means of bolts, plugs, welding or crimping. Solid and reliable, good connection; The wiring is neat, clear and beautiful; Wire insulation is good, no damage; There should be no wire connector in the cabinet; The circulation number is correct and the handwriting is clear.

The wiring current loop in the cabinet shall be insulated with copper core, with a voltage of not less than 500V and a cross section of not less than 2.5_2, and the cross sections of other loops shall not be less than 1.5_2. When the electronic component circuit is connected with the weak current circuit by welding, the insulated copper conductor with a cross section of not less than 0.5_2 can be used under the condition of meeting the current carrying capacity and voltage drop and having sufficient mechanical strength. The connecting wire between cabinets must pass through the terminal board. According to the wiring diagram, straighten enough wires and tie them neatly, and then connect them to the terminal board after setting the wire number.

The wiring mode should be as consistent as possible with the wiring mode of the cabinet itself. The wiring of the secondary circuit shall meet the following requirements: the construction shall be carried out according to the drawings and the wiring shall be correct; Bolt connection, plug connection, welding or press connection between wires and electrical components are firm and reliable; The conductor wire core in the cabinet should be free from damage, and there should be no joint in the middle of the conductor; The end of the core wire and conductor of the control cable shall be marked with the number of turns, which shall be correct, clear and indelible; Wiring should be neat, clear and beautiful; Cables introduced into the cabinet should be arranged neatly, numbered clearly, avoid crossing, and fixed firmly to avoid pressing the terminal.