Good cable to use outside

[chris day]

hello guys

I have a lighting install at high level outside a house.
I don’t need additional mechanical protection and would like to use a good UV resistant insulated and sheathed cable.
Don’t want to use conduit as it looks ugly.

I normally used white FP 200 which the manufacturers said supports UV light exposure however I have seen a few installs where after 6 years turns to dust.

(I might be getting a phone in from client is a few years time as a result)

 

[Octopus]

Hi-Tuff / NYY-J is perfectly acceptable for what you describe.

 

[James]

Nearly all black cable has good uv resistance.
The black is normally created with carbon dust in pellet form as the material is being processed.

Obviously check with the cable spec but black anything is nearly always considerably better uv resistance than the same white cable.

 

[Strima]

I tend to use standard black flex for domestic lighting circuits outside if the installation method allows it.

 

[Toneyz]

What B.S number does this cable have?

 

[Octopus]

What B.S number does this cable have?

Which cable?

 

[Toneyz]

What B.S number does this cable have?

Hi tuff-NYY-J

 

[Dustydazzler]

Hi level, black flex

Low Level, pvc conduit or copex

 

[Octopus]

Hi tuff-NYY-J

Standards VDE0276, VDE0271, CENELEC HD603

 

[Toneyz]

Standards VDE0276, VDE0271, CENELEC HD603

Is this reconised by BS7671?

 

[Deleted member 9648]

Is this reconised by BS7671?

Same as thermoplastic insulated and sheathed as far as regs go

 

[Deleted member 9648]

hello guys

I have a lighting install at high level outside a house.
I don’t need additional mechanical protection and would like to use a good UV resistant insulated and sheathed cable.
Don’t want to use conduit as it looks ugly.

I normally used white FP 200 which the manufacturers said supports UV light exposure however I have seen a few installs where after 6 years turns to dust.

(I might be getting a phone in from client is a few years time as a result)

Don't forget you'll need to secure it with fire resistant fixings at intervals

 

[Octopus]

Is this reconised by BS7671?

interesting point. looking at table 4A3 on page 393 of the BBB, its not there...

 

[Deleted member 9648]

Not funny at all, a fact, seen several recent installs on external walls which don't comply for that reason

 

[Octopus]

Not funny at all, a fact, seen several recent installs on external walls which don't comply for that reason

Are our regs applied retrospectively?

 

[Deleted member 9648]

Are our regs applied retrospectively?

I said recent, ie 18th edition.

 

[ChrisElectrical88]

Black FP200

 

[1Justin]

I tend to use H07RN-F. It's tougher & thicker than the normal black rubber cable H05. It's rarely on the shelf, normally have to mail order it.

 

[HappyHippyDad]

hello guys

I have a lighting install at high level outside a house.
I don’t need additional mechanical protection and would like to use a good UV resistant insulated and sheathed cable.
Don’t want to use conduit as it looks ugly.

I normally used white FP 200 which the manufacturers said supports UV light exposure however I have seen a few installs where after 6 years turns to dust.

(I might be getting a phone in from client is a few years time as a result)

I use black rubber flex. I would usually use H07RN but on occasion would use H05RR. I personally think that even black PVC flex (H05VV) would be ok outside as I put some in my own property many years ago and it is fine. However I use rubber for customers as that is the correct choice. Also, this is only if it does not need mechanical protection, otherwise SWA.

Manufacturers instructions often say to use 1mm H05RN but finding that is like gold dust, so you have to bump it up to the H07RN. You do find that because it is rated up to 700V it is quite thick which can be a bit of a pain sometimes.

This is just one of many useful threads on outdoor cable..
Outdoor Flex Cable RR-F or RN-F - https://www.electriciansforums.co.uk/threads/outdoor-flex-cable-rr-f-or-rn-f.169160/page-2#post-1463746

 

[freddo]

MICC is a superb outdoor cable.