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Running Cable

Skill Level: Intermediate

Introduction

If you are extending or altering your house wiring, your main objective, apart from doing the job tight, and safely, is to cause as little disruption possible to your decorating and furnishings.

 

Plan the route of the cable

First start by working out the easiest route of the cable run from its connection point on an existing circuit to the new fitting or wiring accessory it is supplying.
 
Check out the intended route, taking into account the different wall, ceiling and floor types you will have to cross. Remember, using extra cable to get from A to B may be cheaper than taking the more direct route and having to carry out a lot of restoration
and decorating work to make good.

Cable protection

Any new cable runs that are buried in walls must be protected by conduit or channelling to comply with wiring regulations.
 
Cables that run beneath floors and across joists must pass through holes drilled in the joists centres where practical; otherwise they need some form of special protection.
 
Cables that are running parallel to joists can be clipped to the joist sides or left lying on ceilings.

Partition walls

If you are planning on running cable inside an existing partition wall, gain access to the walls head plate ( the top horizontal frame member)
 
Drill through it at the position of the cable drop and lower a weight into the void. If the weight encounters an obstruction such as a noggin, pull it back up and measure the length of the blockage.
 
Next, cut a window in the plasterboard over the noggin and notch it out so the weight can pass it. Feed it on down to its destination, cut another window for the new mounting box, tie on the cable and draw it up through the void.

Running cable in solid walls

The first thing to do is mark out the line where the cable will run. Use a pencil and a straight edge, with a plumbline on vertical runs, and a spirit level on the horizontal runs.

 
Next, Using a bolster and club hammer, cut along the marked lines to the required depth, and rake out the loose debris. A cold chisel is ideal for this.
 

 

 

 

 

Fixing the conduit

Cut the conduit to length and secure in place with galvanised plasterboard nails driven in beside the conduit at intervals of approximately 300mm.

Finishing off

When the cable has been run – has reached its final destination point – the next job is concealing the cable and conduit. This is done by filling out the area flush with plaster or filler.

 

It only remains now to attach your electrical fitting or accessory at the end of the cable.

Tools you will need:
Faithfull 1.8Kg / 4Lb Fibreglass Handled Club Hammer
Faithfull 1.8Kg / 4Lb Fibreglass Handled Club Hammer
- Roughneck 300mm x 25mm Cold Chisel & Grip
Roughneck 300mm x 25mm Cold Chisel & Grip
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