cable routing / perscribed zones

[lister]

Found this whilst altering a kitchen - couldnt resist a photo

 

[The Truth]

Dont confuse things here...

metal capping is not classed as containtment, is not in the same category as conduit or trunking and is not classed as 'mechanical protection'. its sole purpose is to protect the already mechanically protected cables from the plasterers trowel.( its optional but good practice ) For this reason its not specifically mentioned in the regs.

capping does not need to be earther because the cabels beneath are T/E. ( insulated and mechanically protected ) trunking and conduit must be earthed because there ARE the mechanical protection with single core cables inside.

Ref. the avoiding the RCD usage? only SWA / SY / etc. Steel conduit / trunking ( all earthed ) can be used in that respect.

The truth appologises for foul language used earlier

and gooooood luck trying to earth 100 lengths of steel capping with 4mm G/Y cable?!

 

[mrloy99]

Yous boys get away with some shoddy workmanship over there.I've yet to see capping in use over here (N.Ireland) We ALWAYS use conduit tracked into the walls.. I couldn't believe the stuff I saw
in London---just like the o.p.'s photo.

 

[ian.settle1]

Have alook at this from the NIC


Subcategory - 1. BS7671 - Voltimum UK - Electrical Installation Products and Contracting

Dated 4-11-2006 therefore does not apply as that was for the 16th and not 17th.

 

[sparks1234]

Okay, been onto the 2 biggest governing bodies and both tell me that metal capping need not be earthed, it is unexposed metalwork. That basically tells me all I need to know but you are welcome to discuss the matter as long as you care to.

Yous boys get away with some shoddy workmanship over there.I've yet to see capping in use over here (N.Ireland) We ALWAYS use conduit tracked into the walls.. I couldn't believe the stuff I saw
in London---just like the o.p.'s photo.

You dont think it may be because we have moved on a bit over here then?

I worked for a while in Ireland and found standars there rather low, above suspended ceilings it was like a spiders web, cables on the ceiling etc etc, and as for the distribution boards, they were a fire hazard in the making

 

[mrloy99]

I worked for a while in Ireland and found standars there rather low, above suspended ceilings it was like a spiders web, cables on the ceiling etc etc, and as for the distribution boards, they were a fire hazard in the making[/quote]

Seen some rough stuff myself alright--At least we make the effort and use 1.5 twin brown for switchdrops.Last time I asked for it in London they looked at me like I'd two heads.

 

[sparks1234]

I worked for a while in Ireland and found standars there rather low, above suspended ceilings it was like a spiders web, cables on the ceiling etc etc, and as for the distribution boards, they were a fire hazard in the making

Seen some rough stuff myself alright--At least we make the effort and use 1.5 twin brown for switchdrops.Last time I asked for it in London they looked at me like I'd two heads.[/quote]

Oh no, 2 heads thats terrible, LOL sorry, good job we don't work in India I guess

 

[supasparxs]

I worked for a while in Ireland and found standars there rather low, above suspended ceilings it was like a spiders web, cables on the ceiling etc etc, and as for the distribution boards, they were a fire hazard in the making

Seen some rough stuff myself alright--At least we make the effort and use 1.5 twin brown for switchdrops.Last time I asked for it in London they looked at me like I'd two heads.[/quote]

many years ago I worked on a Bank called Nomoria in St.Martin Le Grande in central London.

The Irish electrical contractors we were working for set some really..... Impressive employment standards
on a Friday afternoon if your clock card was still in the rack after 3pm you had a job on Monday.


MF Kent are no longer around but with top quality companies like that what difference does it make whether you use twin brown or blue brown (and identified brown brown) switch lines.

two days before the main entrance opened to the client the fire office snagged the halogen up lighters being able to be touched by anyone passing, the heat resistant cable being rated up to 85 degrees and the heat at the fitting was 115 degrees. All the cables were seized up in the conduits and we had to rewir it with 1500 meters of Pyro.

You are right there are some really impressive standards in Ireland.

I almost forgot MF Kent went bust over guys hospital where someone left the Chlorine tables in the fresh water tank without flushing them out resulting in £1.5 million worth of plumbing to replace the damaged copper (not including the remedial works to expose the damaged copper, and the delays caused for the hospital opening several years late)

but your right there are great stanards in Ireland

Richard