Requirements And Specifications For Installation Of Distribution Boxes
The installation requirements and specifications of Distribution box involve many aspects, including site selection, fixing method, wiring specifications and safety protection.
Site selection requirements:
The distribution box should be installed in an area close to the power supply to reduce power loss and ensure safety.
Avoid installing in a humid and corrosive environment to prevent equipment damage.
Select a well-ventilated and dry place to avoid poor heat dissipation causing equipment overheating.
Installation height and fixing method:
The bottom edge of the distribution box is usually between 1.5 meters and 1.8 meters above the ground, which is convenient for operation and inspection.
The fixing method should be firm and reliable to avoid movement or tilting of the box due to vibration or collision. It is recommended to use a suitable mounting bracket or screw for fixing.
Wiring specifications:
The power should be turned off during wiring to ensure safety.
Use high-temperature resistant copper core wire, and the cross-sectional area should meet the load current requirements.
The wiring process should be standardized to avoid copper wire exposure or unclear wire number identification.
All cable inlets and cover joints should have no visible gaps to ensure good sealing.
Safety protection:
The metal box of the distribution box, the electrical installation board, and the metal base and casing of the electrical appliances in the box must be grounded.
The protective neutral wire should be reliably connected through the terminal board.
A leakage protector should be installed in the distribution box to provide additional safety protection.
Installation requirements in special environments:
In flammable and explosive environments, explosion-proof distribution boxes should be selected and explosion-proof treatment should be carried out.
The installation of explosion-proof distribution boxes should follow specific explosion-proof grades and material requirements to ensure their safety and reliability.
