Maintaining an electrical system is primarily a matter of routine inspection and keeping connections clean and tight. It is also a matter of having necessary repairs made promptly and professionally. Likewise, a system should only be used within it’s design capability. Expanding an existing system or adding to it to meet current standards of convenience and safety is beyond maintenance. However, it does happen…
Inspect your system every six months or so.
At the main panel, check the circuit breakers when they are not passing current. Flip the breakers off then back on. For those that do not reset, replace the breaker.
On the outside of the house, check the power wires leading to the house for insulation. If the insulation is loose or frayed, call the power company and request repairs. Check the security of the Weatherhead attachment to the house as well as the wire that travels to the meter base. Make sure the caulking around the wire/wall penetration seals well. Check any outdoor wiring for fraying or rusting fixtures. Make sure covers over outdoor receptacles fit weather tight.
Inside the house, check all receptacles to see that they are tight into the wall. Any receptacles showing rust should be replaced (junction box and all). Pay attention to those receptacles in the basement as well. Check appliance plugs to be sure wires are not frayed and that there is cover surrounding the prongs.
With these simple tasks, you can keep “tabs” on the functionality of your electrical system.