Observance of the following rules will control this hazard:

Never condone overloading of circuits. Remember a tripped circuit breaker is a warning. If the total current demand (amps) of connected equipment is greater than that which wiring or socket outlets are designed to supply there is potential for an electrical fire.
Where flammable gases or vapours may be present, use only electrical equipment approved for such an application.
Do not use faulty equipment or misuse equipment.
Repair loose wire connections or cables which are kinked, frayed or other wise damaged. Broken strands may pierce the insulated covering and become a shock or short circuit hazard.
Poorly fitting plugs in socket connections should be changed. Use a standard receptacle and plug.
Shut off the power on any electrical machine such as computers, photocopiers, and calculators when the machine is not in use.
Treat extension cords with care. Broken insulation can start fires. Cords should not exceed 2 m in length. Replace them if they are damaged or show wear. Cords should not be strung around door jambs or placed under rugs as the use of tacks or other fasteners and the friction wear will lead to insulation failure. Wherever practicable they should be replaced by fixed wiring.
Be sure the extension cords being used are approved by a recognized testing laboratory and inspect them regularly.
When using self-coiling extension cords, fully draw out the cord.
Keep lamps well clear of drapes, papers, and other combustible materials.
Report unsafe conditions without delay. Check to ensure that the condition is remedied as soon as