Distribution Box Wiring Steps
Preparation phase
Box installation: Make sure that Distribution box has been correctly installed and fixed.
Material preparation: Prepare the required circuit breakers, wires, wiring ties and other materials, and ensure that they meet the design drawings and installation requirements.
Circuit breaker installation
Location determination: Determine the installation position of the circuit breaker according to the position of the circuit breaker installation hole on the box cover.
Arrangement order: The circuit breakers should be arranged from left to right, and the reserved position is generally placed on the right side of the distribution box.
Wire selection and connection
Wire color: The neutral wire is blue, and the color of the phase wire (A phase is yellow, B phase is green, and C phase is red) should meet the standard.
Wire specification: Select the appropriate wire specification according to the circuit load. The lighting and socket circuits generally use 2.5mm² wires, and the air conditioning circuit can use 2.5mm² or 4.0mm² wires.
Connection method: Each switch takes a wire from the incoming point and connects it to the incoming end of the switch, or uses parallel connection to reduce the difficulty of wiring.
Wiring and Binding
Wiring Direction: Wiring between the main circuit breaker and each branch circuit breaker in the box generally goes on the left, and the wiring out of the distribution box generally goes on the right.
Binding Requirements: The wires should be bound with plastic ties. The size of the ties should be appropriate and the spacing should be uniform to ensure that the wires are straight and without ribs.
Marking and Inspection
Power Supply Marking: The AC, DC or different voltage levels of the power supply in the distribution box should be clearly marked.
Safety Inspection: After the wiring is completed, a safety inspection should be carried out to ensure that there are no safety hazards such as short circuits and overloads.
