An electrical circuit overload occurs when more electrical demand is placed on a circuit than it can handle. This can happen for a number of reasons, but is primarily related to not having enough electrical outlets available for use. For example during potlucks, the use of slow cookers, coffee makers and roasters are all plugged into outlets in the kitchen, and are most likely all on the same branch circuit. This overloads the circuit and causes nuisance tripping of the breakers or blowing of fuses. Frequent tripping of breakers or blown fuses may be an indicator of other more serious electrical issues, including loose or corroded wires and connections, short circuit or a ground fault, which are all issues that can lead to a serious fire. To help avoid a serious situation at your organization, follow the safety guidelines outlined below.
Electrical Inspection
If the breakers are continually tripping or the fuses are blowing, hire a certified electrician to inspect the electrical system. This inspection will identify the electrical demands needed and any necessary corrections.
Fuses
The presence of fuses in the electrical system indicates older wiring, and every attempt should be made to replace fuses with circuit breakers. Where fuses still exist, an all too common practice to stop a fuse from continually blowing is to install a higher-rated fuse in the circuit (i.e., installing a 15-amp fuse with a 20-amp fuse). This is a recipe for disaster, as this allows for more current into the circuit than it was designed for, which can lead to overheating of the wire and probable fire.
To prevent mismatching or over fusing of the circuit, install type “S” tamper-proof fuses in all screw-in fuse panels. These come in different amperage sizes, and each tamper-proof fuse will only screw into the correct tamper-proof base.
Loose Connections or Corroded Wires
Circuit overloads also can be caused by loose or corroded wires and connections. This could be at the service panel circuit connections or a splice in a junction box from moisture or a missing wire nut. Again, if you are experiencing tripping breakers or blown fuses, contact a certified electrician.
Circuit Breakers
Temporary Wiring
Temporary wiring, including the use of extension cords and power strips, indicates that additional electrical services are needed. They are not designed to be installed in a permanent manner, and if this becomes the case, a licensed electrician should be hired to install additional electrical platforms. The following safety precautions should be followed if temporary wiring will be used:
Multi-tap Electrical Adapters
Multi-tap electrical adapters allow for plugging in several appliances at once into the outlet. This can cause overloading and overheating of the circuit. Multiple adapters are not recommended for use.
To help identify hidden electrical hazards and reduce your chances of an electrical fire, have a certified electrician conduct a preventative maintenance inspection every three years. For further information on the items listed above and other electrical safety resources, please visit SafeChurch.com and click on the Facility Safety/Electrical Resources tab or GuideOne.com.
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