The conductor bending shall be consistent and there shall be no dead bending to prevent damage to the conductor insulation and internal copper core. Second, disconnect wiring 1. Phase A is yellow, phase B is green and phase C is red. 2. Lighting and socket circuits generally use 2.5mm2 wires, and the number of empty wires in series shall not exceed 3.

Air conditioning circuit generally adopts 2.5mm2 or 4.0mm2 conductor, and one conductor is equipped with an empty conductor.

3. The zero line between each wire distributed by each phase of the main switch shall not be shared. If the yellow line allocated by a is connected to two 16A lighting openings, the side zero line of the two lighting openings is allocated only from the primary side of the two openings and directly connected to the zero line terminal. 4. The wiring between the main port and each port in the cabinet is generally left wiring, and the outgoing line of the distribution box is generally right wiring

5. The wiring in the cabinet shall be straight, and the low-voltage distribution box shall have no threaded connection. The conductor shall be bound with plastic ties, with appropriate size and uniform spacing. 6. The conductor bending shall be consistent and there shall be no dead bending to prevent damage to the conductor insulation and internal copper core iron wire binding 1

Wires shall be bound with plastic ties with appropriate size and uniform spacing, generally 100mm. 2. After the tie is tied, the unused part of the low-voltage distribution box shall be cut off with pliers. Three phase five wire connection method three-phase five wire system includes three-phase line (a, B, C line) and zero line (N line) of three-phase electricity; And grounding wire (PE wire). The neutral line (N line) is the zero line. When the three-phase load is symmetrical, the sum of current vectors flowing into the neutral line of the three-phase line is zero, but for single-phase, the current is not zero. When the three-phase load is asymmetric, the sum of neutral current vectors is not zero, which will produce voltage to ground.