The rules for all eletrical appliances apply in a computer room.
*There should be no trailing wires.
*Food and drink should not be placed near a machine.
*Electrical sockets must not be overloaded.
*Suitable heating and ventilation.
*Adequate space around the machine. Bags and obtacles should be stored out of the way so that people can't trip over them.
*Suitable lighting with no glare or reflections.
*Benches must be strong enough to support the computers.
*All electrical equipment must be tested for safety at regular intervals.
*Fire extinguishers should be available, including specialist ones to deal with electrical fires.
*Fire exists should be clearly marked and free from clutter.