cable selection

[pepparz]

what type of cable offers the best uv protection (not including swa)
Thanks.

 

[overskilled]

noticed that....definetely one for a big order....under £75...£9.50...

 

[Octopus]

noticed that....definetely one for a big order....under £75...£9.50...

Yes but if you only need a short length of something, its easier to buy what you need and take the hit!

 

[pepparz]

What and where are you intending using it?

its to supply carpark lights no mechanical protection required as its to be laid on a flat roof and spured off to lights which are fixed to edge of office block

 

[pepparz]

this is a rewire and the last lot of cable was white FP200 which has degraded and gone brittle.

 

[overskilled]

Given the exposure to the elements then H07RN-F could be the best bet in terms of ease of installation and weather resistance...hi-tuff is the other though doesn't bend as easily...

 

[Engineer54]

its to supply carpark lights no mechanical protection required as its to be laid on a flat roof and spured off to lights which are fixed to edge of office block

Really!! Flex just laid on a flat roof without any fixings?? That complies now does it??
Maybe old school, but that job sounds like it needs SWA, and fitted/installed correctly to boot!!

 

[overskilled]

Didn't say he wasn't going to cable clip it lol
Though personally I would SWA it, cleat it round the edge, external glands into iprated adaptable boxes and then flex drops to lights as appropriate.

 

[Octopus]

Mind you, if its laid on a flat roof, adding clips could simply compromise the roof lining.

 

[pepparz]

swa is used when theres a risk of mechanical damage is it not,theres no need for it here.there are other cables which it could be fastened to.all it needs is cable that wont quickly degrade in sunlight.

 

[pepparz]

i should add that there is a 4" raised edge all the way around.

 

[Engineer54]

swa is used when theres a risk of mechanical damage is it not,theres no need for it here.there are other cables which it could be fastened to.all it needs is cable that won't quickly degrade in sunlight.

There are standard ways and means of installing fixed/supported cable installations on a flat roofed building... Cable tieing them to other unfixed/unsupported cables isn't one of them, and doesn't comply with any known approved installation method that i'm aware of!! ...Absolutely Abysmal!!

If this is the standard of work you provide, god help your clients

 

[i=p/u]

Ho7 ... Is HRcable

 

[overskilled]

H07RN-F is rubber neoprene flex hence rnf and usually black in colour

 

[pepparz]

There are standard ways and means of installing fixed/supported cable installations on a flat roofed building... Cable tieing them to other unfixed/unsupported cables isn't one of them, and doesn't comply with any known approved installation method that i'm aware of!! ...Absolutely Abysmal!!

If this is the standard of work you provide, god help your clients

wow, big ur self up mr.Benjamin Franklin.

who mentioned other unsupported cables.

sounds like u need a nice lady to relieve that tension, haha.

 

[Engineer54]

wow, big ur self up mr.Benjamin Franklin.

who mentioned other unsupported cables.

sounds like u need a nice lady to relieve that tension, haha.

Well if the other cables are supported and fixed why aren't you doing the same for the cable your installing?? Oh, and cable tieing cables to other cables that are fixed, is also a none starter, any more ideas??

There is nothing big about doing things properly/correctly, neither of which seems to be very high in your priority...