Electrical room

Additional ventilation or air conditioning may be needed, since electrical apparatus gives off heat but the temperature must not rise beyond the tolerance of equipment.

Electrical rooms may have electromagnetic shielding to prevent interference to nearby sensitive audio or video equipment.

In industrial buildings that handle flammable gases or liquids, or combustible dusts, special electrical rooms may be prepared that have ventilation and other measures to prevent an explosion hazard that would otherwise exist with electrical equipment in hazardous areas.

Similarly, in wet or corrosive environments, electrical equipment may be separated in a room that can be protected from the atmospheric conditions.

Practical design of an electrical room will consider layout of the initial equipment and allow for additions over the economic life of the facility.

Main electrical distribution room in a large building.
The back of an antique electrical room, still operational at a US plant as of 2014. All conducting busbars are open and operators must be careful not to touch them.