Cable zones on a staircase

[smity]

I want to add lights up my stairs like this, never come across this before would wiring point to point be classed in a zone with it running on the stairs or will i need to bury it in conduit?

Thanks

 

[telectrix]

Yeah £87 for 100m and i probably only need 20m
[automerge]1578774914[/automerge]

Ive just done a listed stately home in pyro, dont want to go near it again ?

MICC is beautiful. What's with the negative waves.Moriarty?

 

[smity]

MICC is beautiful. What's with the negative waves.Moriarty?

To be honest in the right setting it is nice stuff, making off sockets 2 inch from the floor with 4mm pyro or 8 cables in a switch. Not so nice. I could maybe get some micc and pots from work tho ?
[automerge]1578776362[/automerge]

You could use bs 8436 cables

I haven't used this cable before, how is it made off and does it require a gland? Thanks

 

[Darkwood]

A reminder that the regs are a guidance and not statutory, if you deem a justifiable reason to make a detour from the regs then do so but you must supply the information to the customer and future trades that you have taken this course, given this is one of those time that it should be blatantly obvious plus in an area where we wouldn't expect drilling etc then personally I would do it in normal wiring, we are in days of rcd coverage too as well, the alternative which isn't mentioned is SELV which maintains regulation satisfaction and gives the same result.

 

[ChipFanDave]

Have to agree with Darkwood, a risk assessment and a detailed note of the departure on the EIC should be OK along with RCD/RCBO protection.

 

[Darkwood]

I will add as a second thought, it is plausible a stair lift could be fitted, this would justify the regs stance, so I will stand corrected by myself and go for the SELV option as a solution.

 

[freddo]

Perhaps, but all the stairlifts I have come across are bolted down to the treads.

 

[Darkwood]

Perhaps, but all the stairlifts I have come across are bolted down to the treads.

I don't do domestic so was just a thought, nor do I do stairlifts but the possibilities of one anchoring to the wall need to be factored in.

 

[westward10]

Just go vertical from the lower fitting, horizontal to the next and so forth. Are they not then in safe zones?

 

[smity]

I could drop some conduit in like this, then either long reach bush with an earthing nut on to earth or a banjo behind the bush

 

[westward10]

That is what I am suggesting, to me they are safe zones. Vertical and horizontal from each fitting, no protection required.

 

[Darkwood]

You are allowed to run 100mm if I recall to the defined perimeter of a wall, that is exempt of direction, staircases are unique in they are jagged and not a straight edge so do you define it by the crest of the wave or the lowest point, again I believe this is just one if them scenarios where regulations are hard to apply under the context they were originally brought in so it gives some scope to think other ways.

 

[westward10]

You draw vertical and horizontal lines from all those fittings, they are your safe zones. It may create an obscure route but nevertheless it would be compliant.

 

[Darkwood]

I was talking about safe zones at the perimeter of a wall, that follows the edge regardless of the plane it is on, if you run under the staircase for instance you can follow the diagonal to 100mm and comply, above with the skirting takes you out of that zone hence my alternate take on this.

 

[smity]

You draw vertical and horizontal lines from all those fittings, they are your safe zones. It may create an obscure route but nevertheless it would be compliant.

Your right i dont know why i didnt look at it like that, but then to me that looks a less obvious cable route for someone looking at it in the future than a diagonal route ?‍

 

[westward10]

I agree it is non conventional but to me it would create a compliant route.