If the distribution box of household distribution box needs to be perforated, the edge of the hole shall be smooth and smooth. Learn how to install a distribution box safely and correctly. Covers wiring, placement, standards, and expert tips for a compliant setup. The bolt length is generally the sum of the embedded depth (75-150 mm), the thickness of the box bottom plate, the thickness of the nut and. According to standards, the height from the bottom edge of a distribution box to the floor is generally 1. However, this height can be adjusted higher or lower appropriately for operational and maintenance convenience, provided design. Residential line box: Compact in size, suitable for home electrical systems, used to distribute power for lighting, outlets, and household appliances. Commercial line box: Designed for commercial facilities such as office buildings and shopping malls, it has a larger carrying capacity and. There are two types of domestic distribution box: metal shell and plastic shell.
[PDF Version]