Indoor medium voltage switchgear room some installations requirements

• Selected rooms are far from groundwater and flooding.
• Easy access for operation, transport and firefighting services
• Walls, ceilings and floors must be dry
• In, over and under the rooms containing switchgear, the piping for liquids, steam and combustible gases should be avoided
• Room dimensions must be appropriate to the nature, size and arrangement of equipment
• The escape route from exit doors must not be longer than 40 m
• Inside surfaces of switchgear room walls should be as smooth as possible to avoid dust deposits
• The floor surface must be easy to clean,pressure-resistant, non slip and water resistant
• Steps or sloping floor surfaces in switchgear rooms must be avoided in all circumstances
• The rooms must be sufficiently ventilated to prevent condensation
• In areas with heavily polluted air, the rooms should be kept at slight positive pressure using filtered air.
• In conventional switchgear installations, the arcing faults can create considerable pressure in the equipment room. Using pressure-relief vents can avoid any probable damage to walls and ceiling resulting from excessive high pressure.

Photo show a example of MV switchgear room by POWINS company.

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