What specifications should be considered for the installation of low voltage distribution cabinet and distribution box

What are the technical specifications for installation of low voltage distribution cabinet and distribution box?

The shell raw materials of low-voltage distribution cabinet, distribution box and switch box are generally made of thick steel plate or insulating layer plate, but it is not suitable to use wood raw materials.

The power supply box and switch box shall be installed upright and consolidated, and shall not be inverted or tilted. The vertical practice between the bottom of mobile distribution box and switch box and the pavement should exceed 1.3

M. The distance between the bottom of portable distribution box and switch box and the vertical pavement should be greater than 0.6 M

M. No more than 1.5m.

It is forbidden to connect the power plug into the low-voltage distribution cabinet with the plug.

The space between the power boxes is not suitable for a long distance. The distance between distribution box and switch box shall not exceed 30m. The level interval between switch box and mobile power consumption machine and equipment is not suitable to exceed 3M.

Each power consumption machine and equipment shall be divided into other special switch boxes. Each power consumption machine and equipment on the construction site shall have its own special switch box, and the regulation of "one machine, one switch (zh á), one leakage" must be considered. It is forbidden to use the same electrical switch to operate two or two power consumption machines and equipment (including power sockets) immediately. Leakage protection switch must be set in the switch box, and its rated value of current at power off attitude shall not exceed 30mA and leakage attitude time shall not exceed 0.1s.

Low voltage power distribution cabinet, in order to ensure safety, all distribution box doors should be equipped with locks. It is not allowed to connect or plug other temporary electrical equipment in the distribution box and switch box. It is forbidden to put dirt in the switch box.

The color of the outer coating of the distribution box (cabinet) shall be subject to electrostatic induction (which is a kind of static positive charge) electrostatic spraying in accordance with the provisions of the bid inviting party. The coating shall be adhered and consolidated, and the color shall be uniform without wrinkles, drops, black spots, leakage of spraying and other safety hazards. No significant color deviation and light return shall be observed at the interval of 1km, and the surface shall be smooth and tidy without dents, scratches and other damages. The parts of other hot-dip galvanized coating used in the box (cabinet) shall also be free from falling, black spots, plating leakage, corrosion and other potential safety hazards, and the surface quality must meet the same requirements. There should be no dirt and dust in the box (cabinet).