Main Switchboard Room Requirements

Design criteria for room ventilation.

Main switchboard room requirements.

Main lv switchrooms will typically contain free standing switchboards and motor control centres mcc along with auxiliary equipment required for the room to function bus ducts cable containment distribution boards lighting small power air conditioning equipment fire fighting etc. Integrated facilities switchboard ifs. Stand alone packages. 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.

Each switchroom is unique and needs to be considered in relation to the specific equipment which will be installed. Space requirements for electrical rooms remote switchgear. Switchboard ifs that requires access from the front only. An electrical room is a room or space in a building dedicated to electrical equipment.

The most important is not to exceed the permissible maximum temperature. Main equipment rooms distribution pathways and local branch equipment rooms. Electrical equipment may be for power distribution equipment or for communications equipment. Together with the actual equipment sizes this defines the overall minimum dimensional requirements of the room.

There are three types of general interior electrical spaces that factor into new building design. In order to design a good ventilation of switchgear and transformer rooms the air in the room must meet various requirements. Dust content may also be set. Large buildings may have a main electrical room and subsidiary electrical rooms.

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. 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. Its size is usually proportional to the size of the building. 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. 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. Limit values for humidity and air quality e g.