Electrical DB pictures

I have uploaded below a few pictures of electrical DB being installed at a high-rise office-building project. I only have enough time for these few pictures today, but I will be sending a more detailed post on the DB installation soon. Plus a few more of the DB pictures maybe.In the meantime, if you have the time, check out the following link. It is a link on how to convert your car into an

Electrical DB installation

The electrical DB (distribution boards) for high-rise office installations shall be non-ventilated, naturally cooled, metal enclosed type, flush fronted and suitable for front access and shall be built to comply with IEC 60439-1. All louvers shall be covered with wire mesh.The distribution boards shall contain MCCB (moulded case circuit breakers), MCB (miniature circuit breakers), RCD (residual

Electrical busbars

The electrical busbars inside the switchboards shall be of plain hard-drawn, high conductivity, electrolytic copper bars in accordance with BS EN 13601: 2002, and of adequate rectangular cross-section to carry continuously the specified current without overheating and shall be rigidly mounted on non-hygroscopic insulators so as to withstand any mechanical forces to which they may be subjected

Electrical DB wiring

Following is a sample specifications for the wiring of an electrical DB. Refer the section on Electrical DB installation for specification details on the construction of distribution boards.

Photo 1 - Internal wiring of an electrical DB

Terminals for external conductors All conductor terminals shall be suitable for copper conductors.

All cable termination assemblies shall have facilities for

Switchboard electrical earthing

Following is a picture showing the earthing busbar of a main switchboard. Below the picture is a simple performance specifications for the grounding of the switchboard.
The are also two more posts on switchboard installation check and switchboard electrical tests. The latter is a general list of tests and inspections that are usually required of a major switchboard such as main switchboards and

Electrical switchboard installation

The following is a sample perfomance specifications for the assembly and installation of switchboards in an electrical contract for a new multi-storey office building.ScopeThe scope of this section is to set down briefly the requirements, methods, materials, workmanship, standards and regulations in connection with the complete assembly of switches, starters, and/ or control devices as used in an