Electrical conduit for bringing armoured cable into house?

[flanagaj]

I have been putting in foul drainage this week and now need to put the conduit in for the 2 * 23 KVa cables that will come under the lintels and into the plant room.  I do have a 54mm diameter hockey stick and was wondering whether to just put two of those in, or am I better off using another type of conduit?

Thanks 

[Nickfromwales]

22 minutes ago, flanagaj said:

I have been putting in foul drainage this week and now need to put the conduit in for the 2 * 23 KVa cables that will come under the lintels and into the plant room.  I do have a 54mm diameter hockey stick and was wondering whether to just put two of those in, or am I better off using another type of conduit?

Thanks 

Ok, so we need cable sizes, eg outside diameter, to comment.

 

What are these cables for?

[flanagaj]

32 minutes ago, Nickfromwales said:

Ok, so we need cable sizes, eg outside diameter, to comment.

 

What are these cables for?

25mm2 

The cable will be from the meter to the CU in the house.

[Nickfromwales]

1 hour ago, flanagaj said:

the 2 * 23 KVa cables

Singular or plural, squire?

 

100mm duct is the easiest, as you only need a hockey stick when outside afaik. 2 will come up that with ease.

[Onoff]

I brought 63/50mm flexible conduit into the house from the garage recently. Inside that is a 16mm² SWA along with two 20mm flexible conduits for data etc. With hindsight I should have gone for 100mm especially as I'm now considering another EV charger. I was mind (still am) tight for money so the 63/50mm came off FB marketplace cheap. 

 

Ah well! 

[flanagaj]

With regards to the 100mm ducting.  Do you simply just put a bend in it or do you buy a preformed smooth bore bend?  If such a thing exists.

[Mr Punter]

Where we are, if you don't have the right ducting the DNO (UKPN) won't run the cable.  They will tell you what they need.

 

Just re read and I see this is your side of the meter, so 100mm rigid duct will be OK.

Edited 1 hour ago by Mr Punter

[Nickfromwales]

2 hours ago, flanagaj said:

With regards to the 100mm ducting.  Do you simply just put a bend in it or do you buy a preformed smooth bore bend?  If such a thing exists.

Just observe a reasonable bending radius and it’ll be fine. Stopping and starting with fittings causes a snag, so one continuous piece, joints in a perfectly straight section only, if needed, and get a 6mm nylon draw rope in it when you lay it.