Pvc external

[cliffed]

What’s all this recent piffle,you can’t use pvc t&e externally.
you can see this cable years old @ least 30 years old,no sign off damage whatsoever.

 

[Pete999]

What’s all this recent piffle,you can’t use pvc t&e externally.
you can see this cable years old @ least 30 years old,no sign off damage whatsoever.View attachment 52839

Agree in principle Mate, but the real test of the cable's condition will be if you have to alter or move the cable, I have seen it crumble and crack if you try and move it for other works, but can see your point to some degree, an interesting thread for sure. Love those buckle clips, brings back memories of making up a handful with pins to hand to the Sparky I was helping at the time.

 

[bill01803]

I replaced one recently that hadn’t worked for 10 years that was installed in the 70s, all that was left was 3 copper wires buckle tied to the catenary

 

[James]

Swa has a pvc outer cover.
But the carbon black helps with UV protection

 

[Dustydazzler]

As Pete rightly says , it looks absolutely fine when left completely untouched.
But if you try to move it or bend it , more often than not the outer sheath will split and crack.
I guess much will depend on how much UV exposure the cable is subjected to e.g in direct sunlight or clipped under a soffit

 

[snowhead]

Like any rules and regs it's to cover all situations.

The reg couldn't read use outside except where U.V exceeds a particular level for a defined number of hrs per day.
Or the ambient temperature is below a certain temperature for a given number of days.

Some some installs may be perfectly fine for 50 years, others may fail in 10.

 

[cliffed]

Thanks agree on all comments,I too love the buckle clips,& yes the cable completely in good condition.

 

[Deleted member 105166]

It's also possible the environmental conditions may have compromised it beyond what is immediately visually apparent. Hypothetical, but it would be interesting to compare IR on it at say five year intervals of its 30 year life. Also, taking @Dustydazzler's point, if someone were to rest say a set of steps or materials against it, would the insulation easily break and crumble?

 

[Andy78]

I have seen old T&E installed outside in perfect condition after many decades. I have also seen it sat in full sun, degraded, cracked, and absolutely knackered.
Depends really.

 

[cliffed]

It's also possible the environmental conditions may have compromised it beyond what is immediately visually apparent. Hypothetical, but it would be interesting to compare IR on it at say five year intervals of its 30 year life. Also, taking @Dustydazzler's point, if someone were to rest say a set of steps or materials against it, would the insulation easily break and crumble?

No honestly I’ve actually felt it,it’s fine

 

[Midwest]

With all the lichen & moss on that wall, don't think that cable seen much sun in its life time.

 

[Dustydazzler]

It does appear to be on the shady side of the building , which would explain why it still looks in good shape...

 

[telectrix]

What’s all this recent piffle,you can’t use pvc t&e externally.
you can see this cable years old @ least 30 years old,no sign off damage whatsoever.View attachment 52839

that's either a huge cannabis or Triffid behind the window, or a reflection of a large tree. if the latter, it's probably why the cable has not seen any sunlight.