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15 Easy DIY Steps for You to Change a Fuse Box to a Circuit Breaker

Changing a fuse box to a circuit breaker requires certain level of expertise. Thus, the average DIY enthusiasts usually do not try this out. A licensed electrician in London explains the work has to be done while the circuit is on and electric current is flowing through it. Alternatively, you can request the power supplier to cut off the connection to your fuse box temporarily. When fuse box replacement is concerned, it is utmost crucial that you understand the basics of electricity clearly and are confident working with it.

In the following sections of the blog post, let us explore how to do it safely step by step.

Changing a fuse box to a circuit breaker is simple steps

  • Step 1

Uninstall all the fuses from the fuse box. Point to note, this will make your home run out of power.

  • Step 2

In the next step, disconnect all the wires and cables that are connected to the fuse box.

  • Step 3

The connection or circuit that runs from the meter box to the fuse box includes two live wires and one neutral wire. The neutral wire is either wrapped in a white casing or comes as bare copper. You have to disconnect the neutral wire first. If it has an insulated casing, wrap electrical tape around the bare, exposed portion of the wire.

  • Step 4

Make use of pliers and screwdrivers with insulated handles to disconnect one of the live wires. Be careful not to touch the bare wire.

  • Step 5

Tape the terminal end of the wire as soon as you disconnect it. Similarly disconnect the other live wire and tape its terminal end too.

  • Step 6

Is the fuse box mounted outside the house? If yes, then there’s some kind of ground wire inside the box that is connected to a rod inserted into the ground. At this stage of your DIY project you have to disconnect this wire.

  • Step 7

Licensed electricians, who deal in fuse box replacement in London, suggest removing all the cable clamps in the next step. Then you have to channel the connections from the fuse box. Uninstall the fuse box from its wall mount and pull out the wires carefully.

  • Step 8

You have to remove the inner cover of the breaker box. Select the locations at which the wires enter the box. Punch out holes at the selected locations. Do not remove knock-outs unnecessarily where holes are not required.

  • Step 9

Mount breaker box carefully on the wall.

  • Step 10

Channel the disconnected wires into the box and reattach the cable clamps to ensure the circuit is re-established.

  • Step 11

At this stage at least one or two neutral or grounding wire is present inside the breaker box with a number of connections. Just select a connector and loosen its screw to slide the ground wire into it. Then tighten the screw to make sure the wire remains in its place.

  • Step 12

There are two large connectors at the top of the breaker box. Take the tape off one of the live wires and connect it to one of the connectors. Repeat the same with the other live wire too and connect it to another connector. Now connect the neutral wire to one of the neutral or ground bus bar connectors. You better be very cautious and careful while working out this phase.

  • Step 13

Re-connect all the white wires coming from the house circuits to the ground or neutral bus bar.

  • Step 14

At this stage you have to connect each black wire to different breakers. Then you have to snap the breaker into one of the many hot bus bars.

  • Step 15

Now turn on the breakers one after the other. If a breaker snaps off, you can bet a bare wire somewhere in the set or circuit is touching another bare wire or metal. However, this problem also arises when you fail making the connection properly. In such circumstance, you should retrace your steps to locate the fault or problem. If the problem cannot be identified, you should better call a licensed electrician.

The tips discussed above are shared by technically sound and licensed electricians associated with Electric Works London. Please feel free to contact us for more information.

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