3 core flex.

[Bright.Spark]

I'm adding a outside light to an. Existing install. The lights have been wired in an rb4. Can I add my light fitting to the circuit but wire it in 3 core flex instead of 1.5 twin and earth?

 

[Hawk81]

yes. why would you not be allowed to?

 

[ian.settle1]

I'm adding a outside light to an. Existing install. The lights have been wired in an rb4. Can I add my light fitting to the circuit but wire it in 3 core flex instead of 1.5 twin and earth?

whats an rb4 when it is at home?

 

[nickblake]

agree with hawks no probs its easier than TWE as the cable entries on most outside lights are round so would fit better and less change of water penitration

 

[J@mes]

I always use black 3 core flex because I think it looks neater than having T&E on the walls and as Nick says, the cable glands on most fittings are designed for round cable.

 

[Olec]

hi guys, im doing a similar job. Just to clarify, flex can be clipped direct on exterior walls for lighting without conduit for protection?

 

[malcolmsanford]

No use something like hi-tuf

 

[ian]

No use something like hi-tuf

Where does it say in the BRB, or OSG that you cant use flex clipped direct to an outside wall without protection?

Ian

 

[DurhamSparky]

seen the price oh hi tuf!!!

 

[sparks1234]

Theres nothing to say flex cant be used outside, but just consider mechanical damage etc

 

[ian]

It’s unlikely to get damaged when wiring at high level such as installing a light, however, if flex or hi tuf etc is routed at low level where it can be damaged it should certainly have some form of mechanical protection.

ian

 

[davelerave]

is flex is suitable for cliiping direct outside?-i doubt it

nym is suitable for clipping direct outside-when shaded from direct sunlight

 

[DurhamSparky]

pvc flex = no
rubber = yes

 

[ian]

pvc flex = no
rubber = yes

You are going to have to convince me of that. i have read the technical specs on flex recently and it does not say it cannot be clipped outside.
If we were discussing grey T&E i would agree because it perishes in direct sunlight, but black or white flex, there is no problem with.

ian

 

[brucelee]

only thing i can find is it should be preferably black if outside as it has a reasonable life