Pir coding

[DurhamSparky]

any body got a reg to say SWA is not correctly terminated..! got a funny feeling there is no direct REG but im trawling through Selection and Errection chapter with no avail for a reg that i can utilise as a general purpose one!!

if all else fails i will put down not terminated correctly IAW BS7671

 

[Electricalserv]

I'm searching for one with you mate lol.


Put it this way. With SWA, in the event of a fault to the metal armour and its not connected to earth you ahve a problem therefore it must be earthed.

 

[Deleted member 9648]

More info needed on why you think it's not correctly terminated.....there are other ways of terminating that dont require a gland.

 

[Electricalserv]

I have presumed there is no gland. Presumtion is the mother of all..... though

 

[DurhamSparky]

lets just say im currently typing up my latest PIR adventure!! i sould really just type a letter saying Installation is shoddy and needs replacing ASAP!

trying to x ref all my PIR coding with a reg where relevant!

 

[diditrain]

9.3.5 Guidance note 8 and manufacturers instructions

 

[electromonkey]

More info needed on why you think it's not correctly terminated.....there are other ways of terminating that dont require a gland.

Out of curiosity, what are the other ways?

 

[Deleted member 9648]

Out of curiosity, what are the other ways?

There are occasions when glanding an SWA into an accessory or enclosure will look a pigs ear....I have in such instances butted pvc trunking up to said enclosure,and taken the SWA sraight in.The steel wire can be terminated directly into the earth terminal,or...if glanded/earthed at the other end,and not used as a cpc,(ie a conductive part)it can be cut off completely within the enclosure. Obviously this only really applies to small SWA's. Other satisfactory methods of termination may be devised, as long as the steel wire is earthed,or continuity is assured,there is nothing in 7671 to say a standard gland has to be used if not appropriate.

 

[electromonkey]

There are occasions when glanding an SWA into an accessory or enclosure will look a pigs ear....I have in such instances butted pvc trunking up to said enclosure,and taken the SWA sraight in.The steel wire can be terminated directly into the earth terminal,or...if glanded/earthed at the other end,and not used as a cpc,(ie a conductive part)it can be cut off completely within the enclosure. Obviously this only really applies to small SWA's. Other satisfactory methods of termination may be devised, as long as the steel wire is earthed,or continuity is assured,there is nothing in 7671 to say a standard gland has to be used if not appropriate.

I've never had an occasion where I've not been able to use a gland but it's always useful to know as I'm sure the time will come. I have seen earth clamps used on the armour but was never sure if it was to regs or not as there was continuity.

 

[mogga]

used coupling/bush to take swa into double socket as gland wouldnt fit

 

[Deleted member 9648]

I've never had an occasion where I've not been able to use a gland but it's always useful to know as I'm sure the time will come. I have seen earth clamps used on the armour but was never sure if it was to regs or not as there was continuity.

You can always use a gland,it's just in some (internal) situations it looks better if you dont...like bringing an SWA into a plastic surface box where the install is generally in plastic trunking....I'd always choose the gland route if I can.