which code

[opsman]

Part P of building regs states:

5.7 Garden Lighting and power
Outdoor lighting and power, and electrical installationsin sheds, garages and greenhouses are within the scope of Part P of thebuilding regulations. Furthermore, outdoor lighting and outdoor power circuitsare not exempt from the minor works relaxation. The addition of a lightingpoint or socket-outlet to an existing outdoor lighting or power circuit isnotifiable work.

5.7.2 Fixed cables

PVC cables must be protected against direct exposure tosunlight. Cables must be permanently fixed in a protected location ormechanically protected or buried.
Cables need to be shielded against prolonged exposure todirect sunlight, particularly grey and white PVC cables. Cables with a black orrubber sheath are recommended if direct exposure cannot be avoided. Ultravioletlight from the sun will degrade pvc and unless shielded will shorten the life.Black pvc and rubber cables have a reasonable life outdoors.

 

[mo the test]

I would recommend code c3. The new condition report makes it easier for the client to know what you as an electrician recommend.

 

[opsman]

Come January I would agree C3. Howver we use Amtech software to produce our certs and they won't be issuing the upgraded software for a few more weeks. So we are still doing periodic inspections rather than EICRs therefore Code 2 (Requires Improvement) applies for now.

 

[HandySparks]

Part P of building regs states:
5.7 Garden Lighting and power...

No it doesn't. You're quoting from the Electrician's Guide to the Building Regulations, which is a different thing entirely.

 

[Engineer54]

Part P of building regs states:

5.7 Garden Lighting and power
Outdoor lighting and power, and electrical installationsin sheds, garages and greenhouses are within the scope of Part P of thebuilding regulations. Furthermore, outdoor lighting and outdoor power circuitsare not exempt from the minor works relaxation. The addition of a lightingpoint or socket-outlet to an existing outdoor lighting or power circuit isnotifiable work.

5.7.2 Fixed cables

PVC cables must be protected against direct exposure tosunlight. Cables must be permanently fixed in a protected location ormechanically protected or buried.
Cables need to be shielded against prolonged exposure todirect sunlight, particularly grey and white PVC cables. Cables with a black orrubber sheath are recommended if direct exposure cannot be avoided. Ultravioletlight from the sun will degrade pvc and unless shielded will shorten the life.Black pvc and rubber cables have a reasonable life outdoors.

What a load of dribble!!

FACT: ...Black cables no mater what their make-up is, absorb heat more readily, whereas White or light coloured cables reflect heat!! PVC cabling suffers far more being exposed to freezing conditions, than from sunlight/ultra violet, not that UK see's much in the way of high ultra violet rays anyway!!

SWA PVC coverings can have a special chemical make-up, that helps immunity to ultra violet rays and other environmental conditions etc. But in countries like the Middle East and Far East roof cables run on tray-work will still require sun shields (not covers) that are raised off the tray by legs to allow air circulation and there-by heat dissipation

As others have said, i've seen what was a white T&E run externally for a good 20 m that was still good 25 or so years later, when it was replaced for a direct buried SWA cable. The colour was now a dirty orangey colour mind, but a bit of jiff and a Scotch pad brought the colour back, and was used again to supply a socket in the garage!!