• Electrical circuits that become overloaded pose a threat of fire. 
• The right wiring size is vital in protecting electronics by providing the right amount of power. 
• Should switches, outlets or fixtures not be installed correctly there’s a higher potential for fire due to excessive heat accumulation.
• Any projects that involve an open breaker box increase the chance of exposure to high electrical voltage. 
• It’s critical to make certain that the circuit breakers are matched accurately with the circuit of wiring, something most do-it-yourselfers don’t have knowledge of. 

One aspect that many don’t consider when it comes to plugging devices such as computers and video games into a receptacle is that there is only a certain amount of electricity that the outlet can handle.  Should excessive power go through the line it increases the chance for damaging the electric circuits of a device as well as raising the risk of fire. Equally as significant as proper wattage are the wire connections, should a wire not be properly fastened and tightened it leads to resistance.  This resistance causes heat from the electrical circuit which in turn can cause an electrical fire.  Electrical contractors like this one are aware of the dangers involving adding new circuit breakers.  This requires opening the breaker box and exposing live electricity in order to connect the new breakers.  The slightest mistake could potentially cause serious injury and even death. 
It’s important to remember that the amount of electricity that can travel through a certain gauge of wire and the right circuit breaker size is a balancing act. Ideally, an excessive amount of electricity traveling this path would result in the breaker to ‘trip’ or shut off. However, somebody who tackles this as a do-it-yourself project may very well do something so that more electricity than is safe is allowed to flow without interruption.  This is regarded as a definite hazard that can cause a potential fire hazard. 
Even though it may seem like an economical idea to perform electrical repairs and alterations to the home yourself, keep in mind that cutting corners in order to save a few bucks isn’t worth the potential issues and dangers these shortcuts could quite possibly cause you down the road.