outside lighting cable

ianphilip007 · Oct 9, 2013

after some advice pls

have a outside work area ( open ended but covered from rain and sunlight ) customer requires two 36w IP65 flossy fittings and switch installing. Planning to fuse off existing outside socket with a 3amp fused connection unit. I cant seem to find any 1mm 3 core weather resistant rubber flex locally, but 0.75mm 3 core is readily available. Can anyone see a problem with using the 0.75mm as calculations show volt drop and ZS all ok. Fixed load of only 100watts max so current well below the rated 6amps. I know that minimum lighting circuit cable should be 1mm for fixed wiring but as this has a 3amp fuse protection would it still be a breach. have a niggling feeling this is still classed as fixed wiring.

many thanks.

Guest55 · Oct 9, 2013

i wouldnt consider anything but fp200 for a weatherproof lighting cable that was clipped direct without any further containment.

Marvo · Oct 9, 2013

Shielded or unshielded?

Richard Burns · Oct 9, 2013

The Electricians guide to the building regulations mentions the recommendation of not using grey or white cable outside only black recommended, but as has been said grey T&E can last for ages (sometimes).

[ElectriciansForums.net] outside lighting cable

Oh yes and B&Q sell 1mm² black rubber flex, but any wholesaler should have black PVC flex. (should also have rubber but often don't)

HandySparks · Oct 9, 2013

Hi-tuff or NYY-J is my preferred option in this sort of situation if a longer run is required, rather than just a short loop of flex into a fitting. Readily available in various sizes and number of cores from 1.5mm² upwards and easy to terminate. Sheath is tough UV-resistant PVC.

Only snag is that 3x1.5mm² can be a bit fat for some lighting glands.

shanky887614 · Oct 10, 2013

Why not use plastic conduit with bush coupler and copex into light fittings.

Why not pop into bnq i know there is a big one (can't remember where in lincoln haven't lived there for over 10 years)

markc123 · Oct 10, 2013

shanky887614 said:
Why not use plastic conduit with bush coupler and copex into light fittings.

Why not pop into bnq i know there is a big one (can't remember where in lincoln haven't lived there for over 10 years)

LIES

There is NOT and i repeat NOT a B&Q in Lincoln.

HappyHippyDad · Oct 10, 2013

Hi Ian.

I have looked and looked for 1mm H05RN-F which would fit the minimum criteria for CSA and also the type of cable recommended in most of the maunufacturers leaflets but I dont think it exists!

So you either go for 1mm H05RR-F which you can buy from B&Q or if you want to be really good and correct then 1mm H07RN-F from the following place (a good place shown to me by Murdoch):

https://www.electric-cable.com/rubber-cable-h07rnf.php

jeremy · Oct 10, 2013

If you're using flex, don't forget to terminate the ends properly!

Deleted member 9648 · Oct 10, 2013

I'd go with hi-tuf as well....much better than either T/E or flex.

Guest111 · Oct 10, 2013

I was very interested in this debate so I contacted Prysmian cables tech dept for their take on this,below is their reply.

[FONT=&quot]Good Morning Phil,[/FONT]
[FONT=&quot]You are correct to say that this cable is not designed for outside use. As you point out the obvious one is that it is unarmoured and therefore could be mechanically damaged. In order to avoid this then it should be protected (conduit trunking or capping) or positioned ‘out of reach’. The problem with ‘out of reach’ is that it could then be subject to the weather, and as you mention sun light (UV). The PVC sheaths of these cables are not UV stabilised or designed for ‘heavy weather’. Armoured cables do have UV stabilised sheaths and are designed to get wet. Even then if you want to ‘extend’ their life you would install out of direct sunlight.[/FONT]
[FONT=&quot]I have also seen shortish lengths of twin flat running under a sheltered soffit (out of reach) to a light for example and I would say that seems reasonable. But long lengths of it I would say is not suitable. [/FONT]
[FONT=&quot]Phil, let me say also that we are not an approval organisation and so I suggest you should also ask your trade association (NICEIC). I know you can do this on the Voltimum site if you want.[/FONT]

shanky887614 · Oct 10, 2013

markc123 said:
LIES

There is NOT and i repeat NOT a B&Q in Lincoln.

Beevor road off tritton road

LN6 LDJ

I think you need yours eye's testing pal its hard to miss

markc123 · Oct 10, 2013

shanky887614 said:
Beevor road off tritton road

LN6 LDJ

I think you need yours eye's testing pal its hard to miss

You are still lieing....there is NOT a B and Q in LINCOLN ............i think you need your eye's testing, as you are unable to read (or spell)

Haha, im too funny.

But seriouslly can't believe you've fallen for that, i was got with that joke many moons ago.

specs · Oct 10, 2013

HandySparks said:
Hi-tuff or NYY-J is my preferred option in this sort of situation if a longer run is required, rather than just a short loop of flex into a fitting. Readily available in various sizes and number of cores from 1.5mm² upwards and easy to terminate. Sheath is tough UV-resistant PVC.

Only snag is that 3x1.5mm² can be a bit fat for some lighting glands.

I use it , I like it, easier to handle than swa not many garden situations it can't handle.

DPG · Oct 11, 2013

markc123 said:
You are still lieing....there is NOT a B and Q in LINCOLN ............i think you need your eye's testing, as you are unable to read (or spell)

Haha, im too funny.

But seriouslly can't believe you've fallen for that, i was got with that joke many moons ago.

There's no apostrophe in 'eyes' either. Daz

7029 dave · Oct 11, 2013

I would go with high tuf or fp

outside lighting cable

ianphilip007

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Guest55

Marvo

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Richard Burns

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HandySparks

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shanky887614

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markc123

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HappyHippyDad

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jeremy

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Deleted member 9648

Guest111

shanky887614

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markc123

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specs

DPG

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7029 dave

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