It’s important to learn how to replace a fuse in your home, to ensure that electrical systems don’t become faulty and dangerous. If a fuse blows, then it’s an indication that the electrical systems in your house are currently faulty. You should, therefore, make a hasty point of rectifying the situation before it gets any worse or poses any additional danger. The good news is that there is clear information on how you can go about correcting it. Here are the steps you should consider in order to correctly replace a fuse in a fuse box.
Turn off the Main Power Switch
Once you notice that a fuse has blown in your house, the first thing you need to do is switch off the main power supply. You should start off by turning off the main power switch at the switchboard to prevent any dangers of being electrocuted. You can try to identify which fuse has blown by looking carefully inside the switchboard for the equipment the fuse controls. If one of the pieces of metal inside has melted a little, or the glass window near the top of fuse now has discolouration, it is a clear sign the fuse has blown. Once you identify it clearly you can get started, having done this, the next thing is to do is switching all the lights then unplug all the appliances that are in the faulty circuit.
Replacing the Fuse Wire
When it comes to replacing the fuse wire, there are many types of fuses that work quite differently. If you are unsure of how your particular fuse works, you can examine one of the intact fuses and see the wiring as it runs. While replacing the fuse wire, it’s important to consider the correct rating for your fuse box and electrical circuit, with the current usually indicated on the front side of the fuse carrier. Depending on the equipment you’re using, you’ll have to use certain ratings as recommended.
For instance, lighting circuits use 5 amp wires which shouldn’t ever surpass 10 amps. Socket outlets require 10 amp wires that shouldn’t go beyond 15 amps and finally, large appliances like electric stoves will require a larger amp. While replacing the fuse wire, ensure that no excess wire is left out of the fuse carrier as it may be dangerous. After successfully doing all these things, you can go ahead to replace the fuse wire.
Precautions
While replacing a fuse in the fuse box, you need to take into account some precautions so that you do a great deal in reducing the likelihood of the danger of being harmed. To begin with, you should never attempt to replace a fuse wire with a larger fuse wire or any other object that is not appropriate. Additionally, if you follow all these procedures after a fuse blows with no noticeable change, it’s recommendable to call a qualified electrician owing to the fact that the underlying fault may be more complex and call for professional attention.
from
http://www.electricalwarehouse.com/blog/2017/02/28/how-to-replace-fuse-in-fuse-box/
