What else do i need with conduit?

[jcaan]

Hey guys

I'm going to spur a socket from upstairs socket to external wall dropping down to ground level for an external socket.

So I'll need a conduit to protect a twin n earth cable. It might be about 2 meters drop.

So what else do I need. From the top where the external hole to the external socket to connect the conduit to the accessories?

 

[pete01]

1 end box
1 box lid
3 saddles
1 Bush coupler

 

[ericmark]

Conduit box, 3 x 4 mm screws, 2 for lid on for earth, gasket, and lid, conduit coupler flanged, and saddles. Plus a way to thread the conduit if it needs cutting. Oh, and of course the socket box. And maybe a 20 mm hole cutter for socket box.

I would get the conduit box etc, but to thread the conduit is a problem, so would use SWA if you really need that mechanical protection, plastic conduit no better than the cable, in the main used to make things look neat.

 

[jcaan]

Conduit box, 3 x 4 mm screws, 2 for lid on for earth, gasket, and lid, conduit coupler flanged, and saddles. Plus a way to thread the conduit if it needs cutting. Oh, and of course the socket box. And maybe a 20 mm hole cutter for socket box.

I would get the conduit box etc, but to thread the conduit is a problem, so would use SWA if you really need that mechanical protection, plastic conduit no better than the cable, in the main used to make things look neat.

Thanks

I just checked the pvc conduit on google it states that it's weatherproof and the black ones usually are also UV proof.

I've never done any work with SWA . Not sure if I will be able to cut it properly and get it in the sockets properly etc

 

[ericmark]

Cut my teeth on the stuff, junior hack saw, or at least fine hack saw blade 32t to inch about right, you half cut the SWA before you remove the outer, keeps hack saw in the cut, and I would do the SWA before you screw the socket to the wall, then if a little long or short you can alter place on wall slightly.

But seems no point in plastic conduit, it is not tougher than the cable. And steel conduit makes SWA look like a walk in the park. Could cheat and use a stuffing gland for the SWA, but since I find SWA so easy to gland off, I am not the right person to ask.

 

[pete01]

Err what's wrong with plastic conduit? Asking for a friend....

 

[Murdochcat]

There is absolutely nothing wrong with using plastic conduit in this situation

 

[SUNRAY]

I agree plastic conduit will be acceptable for this, however if you specifically wish to use metal it is a very similar approach apart from the additional requirement to ensure the metal conduit is earthed.

Backwards from the socket:

20mm hole
Brassbush, flange coupler, threaded end of conduit, saddle clips conlock box with back entry, lid with gasket and brass screws also important to add an earthing arrangement at that position (brass screw, crimp tag, single wire from existing socket), short length of conduit to the rear of the existing socket.

Some will say (incorrectly according to manufacturers documentation) that Conlock fittings to not provided adequate earth continuity, to aleviate that concern the conduit can additionally be earthed using a banjo at the outside socket.

 

[sparkwright]

Personally, if using PVC conduit,I wouldn't let the conduit enter the top of the outdoor socket.
Because you risk water getting into the socket.
I would elbow across, and then up, so the conduit enters the bottom of the outdoor socket.
I would drill small drainage holes in appropriate places in the lowest points of the conduit system.

 

[securespark]

Is the OP putting SWA inside PVC conduit?

 

[SUNRAY]

Is the OP putting SWA inside PVC conduit?

...So I'll need a conduit to protect a twin n earth cable...

 

[securespark]

DOH....

 

[Harry Bloomfield]

So what else do I need. From the top where the external hole to the external socket to connect the conduit to the accessories?

2m of plastic conduit, one bush/20mm-end, 3x 20mm plastic saddles, and the socket, plus box. If the top end of the conduit is exposed to rain, then add a one-way box, plus lid, hole drilled in the back, for cable entry. you can run 2.5mm T&E, inside the conduit, all the way to the new socket.

An armoured cable instead, would add numerous extra, unnecessary complications, and cost to the job.

 

[SUNRAY]

DOH....

I do it all the time