To replace a blown fuse, unplug the appliance that is the cause of the problem, locate the blown fuse, unscrew the fuse, and replace it with an exact match. When working with a fuse box, it is essential to have dry hands and stand on a dry surface.Know More
Fuses blow because the circuit is overloaded, there is a ground fault or there is a short circuit. Without fixing the underlying cause of the blown fuse, it blows again. As the number of electrical appliances operating in the average home today may be greater than was common at the time of the home's construction, many circuits are overloaded. The solution is finding another circuit to power the appliance or updating the wiring to meet current needs.
One method of determining the cause of the blown fuse is unplugging all the appliances from the circuit and turning off the lights before replacing the fuse. If the fuse blows with no appliances or lights, the problem is in the wiring. The next step is turning on the lights one at a time to determine if a light is the problem. If the lights are not the problem, the final step is plugging in each appliance individually to determine the one causing trouble. When the problem-causing appliance is identified, it should be removed from service, then replaced or repaired.Learn more about Electrical
Fuses have the advantages of being inexpensive, readily available and easily replaced. Their disadvantages are being inadequate to safely, efficiently assume the load of many modern electrical systems and difficult to identify once blown. Homes with electrical systems installed prior to 1965 typically use fuses as electric-overload protection.Full Answer >
A fuse is a strip of metal or a wire constructed of copper, zinc, silver or aluminum. Some fuses are made of alloys of these metals. Some fuses use two strips with one designed to melt quickly to prevent a short circuit and another designed to fail in the event of a long-term overload.Full Answer >
You should never replace 15-amp fuses with 20-amp fuses. If you use the incorrect amp fuse, then you have a serious risk of an electrical fire.Full Answer >
A fuse box is an important electrical safety device designed to serve as a first point of failure in an electrical system. Fuses are intentionally designed to fail at electrical loads below the capacity of the circuit, ensuring that any overload damages a replaceable fuse instead of causing wiring damage.Full Answer >