1.1 Was the extension cable bought ready assembled (Good company)
1.2 - Is there any RCD/ELCB/RCCB/GFCI(30mA) protection ?
Name of Line Manager
1.3 - Extension cables fitted with suitably insulated connectors and plugs(Water proof recommended) ?
1.4 - Check if cable, plugs and sockets are damaged(cable cut, nicked or damaged)
1.5 - Check the extension cable plug contains the correctly rated fuse for the equipment being used
1.6 - Is there any sign of temporary work,joints, repairs with insulating tape of damaged extension cables with tape ?
(If yes never repair them. Tape won’t provide enough protection from electric shock)
2.1 - Is the cable securely attached to the appliance and the plug(No coloured plug wires are showing) ?
2.2 - Look for cracks or damage on the casing
2.3 - Is there any signs of overheating, such as discoloured casing or plug or cable ?
3.1 - Is the tool/machine connected to proper rated Socket
3.2 - Is there space enough for the tool for Heat transfer/exhaust air ?
(If No, make sufficient space available)
3.3 - Look for cracks or damage on the casing
3.4 - Is the equipment clean, dry and free from signs of spillage, chemical ingress (If No immediately make it safe)
3.5 - Is there any highly flammable liquids near electrical equipment
3.6 - Is the equipment producing a tingle(Small residual current) ,if yes it should be disconnected and reported promptly for repair
General precaution for electrical safety-
-If using a cable drum extension, the cable should be less than 20 meters and it should be completely unwound to avoid overheating
-Winding up of a electric cable shall only be done after disconnection of the plug to avoid the risk on electric shock due to unnoticed wire damage
-When it is necessary to touch electrical equipment , use the back of the hand. Thus, if accidental shock were to cause muscular contraction, you would contract away from the electrical contact.
-If it is safe to do so, work with only one hand, keeping the other hand at your side or in your pocket, away from all conductive material. This precaution reduces the likelihood of accidents that result in current passing through the chest cavity (most dangerous path)