Single or multicore in 20mm conduit?

[JohnnyG]

I'm going to install a couple of domestic radials (2.5mm) as part of an assessment, plus a distribution circuit in 6mm, all will have partial conduit runs <5m.
The conduit for the DC will also have a short run of <2m of 2.5mm inside branching off and feeding another s/o.
I've applied all the neccessary rating factors and done all the calculations based on the cable being T&E, is there anything to stop me using single core cables in a situation like this as I fancy working with them

 

[GaryMo]

No, single insulated PVC sheathed conductors (6491X) are perfect for conduit work.

 

[JohnnyG]

Excellent, can I just strip the P&N cables out of some T&E I have or is the insulation different?

 

[sparkwright]

Excellent, can I just strip the P&N cables out of some T&E I have or is the insulation different?

If you did this you would still need an insulated green and yellow core.

The cores in 2.5 t&e will almost certainly be solid.
Stranded single cores are easier for drawing through conduit.

 

[JohnnyG]

I realised about getting some G&Y but not having used dedicated single core before I didn't even know they were stranded at small CSA's, I thought there had to be a physical difference though
I'll buy some new in that case

 

[Paul_C]

not having used dedicated single core before I didn't even know they were stranded at small CSA's

6491X singles are available as both solid and stranded in the 1.5 and 2.5 sq. mm sizes. But I'd echo the comment about the stranded being easier to work with, certainly in 2.5 sq. mm.

 

[1john]

if they are short runs without bends then you may aswell strip the 2.5 and get a coil of 1.5mm CPC, it's useful for al sorts of fishing around houses and conduits so will be used where if you get coils of 2.5 stranded singles you may not use them again or for a long time and fora 2m run it seems a waste of money.