Stabbing is a common Wiring Problem that is performed by striping the wire and then stabbing the wiring in the back of a receptacle or light switch. Although this practice is allowed for only #14 AWG copper it still has a propensity to loosen contact with the devices spring lock lever. To avoid problems and guarantee a secure and dependable fitting always wrap around the receptacle’s terminals.
Loose nuts are common in homes and can be attributed to not making them tight in the first place or a wire nut that has been previously used may be the wiring problem. Nuts should only be used once, there is a square wire that coiled within the plastic cap and can become dull or worse disengage from the plastic shell itself from over torquing. The most common remedy is to use a new nut.
Improperly made up wiring splices are also a common problem a lot of the time. Here is a technique to ensure that you have a good splice. Make sure the conductors that you are connecting are all striped longer than they need to be and then match the insulation so that they all align of the stripped wiring. Once the strands are aligned then hold them together with one hand to prevent movement and then with the opposite hand twist the stripped lines with a pair of common linemen pliers until a uniform bundle is observed. Trim excess lengths to avoid common problems and install connector.
Sometimes a broken wire can be the cause of your problem when an outlet or switch is not working. Problems commonly get there start during the prepping stage. Electrical lines are stripped and manipulated during the prepping stage and sometimes get nicked during the process. This nicks and abrasions are small and often go unnoticed during trimming out an outlet. Over time the outlet gets used often and this repeated action causes metal fatigue and fails at the nick or cut in the conductor. Problems can be prevented by Taking time and treating the wiring carefully.
Corrosion in the electrical field is a common problem, especially if you live near water or have high humidity or even caused by acids and salts in our fingers coming into contact with the copper. When making connections be carful not to come in contact with the cables and your bare hands. All connections should be clean and free of any deteriorating substances. You can use a thin coating of an Oxide inhibitor to prevent future problems with corrosion.
Conductors having different characteristics such as copper and aluminum are a type of metallic material and sized differently based on temperature and ampacity of the wires used. It is important when mixing different conductors that you only use connectors listed for the metals you are joining. Since copper and aluminum are different metals, they exhibit different behaviors such as thermal expansion and elongation. Connect copper to aluminum using the listed connectors and pig tail to the outlet with copper conductors only. Use an oxide inhibitor to stop problems in the future.