The electrical system installed in any living or working space will have voltages that can be hazardous when people are exposed to them. These electrical hazards must be anticipated and we must see that action is taken to prevent them from happening.
To start with, before you move into a new or previously owned home, it can make sense to have all the circuits tested, broken or missing wall plates replaced, and proper circuit breakers that interrupt ground faults installed, especially for circuits that have outlets in areas where water is used, like bathrooms, kitchens, and laundries.
You must also have a proper knowledge of the main switches and breakers that control all the circuits in your electrical system, as one of the first things that must be done to avoid electrical hazards connected with faulty wiring, switches, and appliances is to switch off the power before you take any action to repair the fault. If your main panel has fuses, it can do no harm to remove the fuses before calling in a qualified and experienced electrician to deal with the problem.
Defective appliances can often become electrical hazards, and if they are not working, have them seen to, by qualified and knowledgeable electricians. Continuing to use an appliance that is not working as it should, will often become an electrical hazard. Lamps that are flickering, or plug points that show sparks can turn into dangerous devices that best attended to immediately.
Power cords must run freely and not be under strain or under furniture or carpets, as walking on them can lead to their damage and make them a source of danger. Do not overload any plug point by using too many devices from a single outlet with adapters and the like, as this can overload the circuit and cause overheating that leads to fire or blown fuses. Check your power cords at regular intervals for frayed wires or loose connections. Read ratings of all electrical gadgets that you use and see that any adapters or other devices you use are of the correct capacity.
Other electrical hazards can come from drilling into walls for hanging wall decor, especially where you have concealed cabling. You can avoid danger from electrical hazards if you make it a practice to always unplug equipment when it is not in use. This is especially important for those devices that are close to sources of water. If any appliance is not working, make sure that you unplug it from the electrical outlet, before you open it to check for the source of the problem.
Faulty wiring or appliances will give warning signals like constantly blown fuses and tripping circuit breakers, and while replacing the fuse or resetting the breaker can get your appliance working once again, it does point to some problem that is better attended to before it becomes a hazard. A constant flickering of lights can point to loose connections. A burning smell from an electrical outlet can point to overload