Main Switchboard Room Requirements

Integrated facilities switchboard ifs.

Main switchboard room requirements.

Space requirements for electrical rooms remote switchgear. Switchgear placed in another service area near the genset room opens floor space and helps keep operators out of high decibel areas when gensets are in operation and protects delicate electronics from the heat and vibration associated with these machines. Stand alone packages. Where a clear space of at least 3 m is provided in front of the switchboard and its equipment including its doors only one emergency exit path needs to be provided.

The most important is not to exceed the permissible maximum temperature. Design criteria for room ventilation. Openings or doorways should be at least 0 9 m wide by 2 2 m high to allow access to the switchboard room or enclosure where necessary. In order to design a good ventilation of switchgear and transformer rooms the air in the room must meet various requirements.

An electrical room is a room or space in a building dedicated to electrical equipment. Electrical equipment may be for power distribution equipment or for communications equipment. Its size is usually proportional to the size of the building. Limit values for humidity and air quality e g.

Article 408 contains the requirements for switchboards panelboards and distribution boards for light and power. Unimpeded space of at least 0 6 metres around the switchboards with switchboard doors in any position and switchgear fully racked out position. Switchboard ifs that requires access from the front only. Therefore even if the switchboard is constructed using lift off type doors the switch room walls must be as a minimum 1 metre from all faces of the switchboard to comply with this requirement.

Large buildings may have a main electrical room and subsidiary electrical rooms. As an illustration the diagram below shows simple room layout consisting of a 22 kv switchboard some dc and scada panels click for a larger image. This ifs assembly can incorporate normal main switchboard structures along with structures that incorporate multiple panel boards per structure usually two as well as dry type transform ers. Main equipment rooms distribution pathways and local branch equipment rooms.

Together with the actual equipment sizes this defines the overall minimum dimensional requirements of the room. Dust content may also be set. In some projects switchboard and panelboard installation may be taking on a new twist with distributed generation applications such as small wind and solar installations.