termination of swa in trucking

[Phillcbr400]

Just to state my background, been through a 3year apprenticeship with 4 years on the tools. Only recently got my 2395. Been on large installation projects aswell as maintenance work. I'll admit these days I don't get time to stick my head In the book as much as I would like. Am I always learning, of course, who isn't?

 

[Phillcbr400]

Wirepuller thank you for the help it is much appreciated. I aim to spend more time on here from now on to up my game if people are willing to help.

 

[Deleted member 9648]

Wirepuller thank you for the help it is much appreciated. I aim to spend more time on here from now on to up my game if people are willing to help.

In a good mood tonight lol. On a recent thread regarding a socket in a bathroom I tore into the OP because a quick read of section 701 would have told him all he needed to know.....it's a whole section on BATHROOMS ffs,anyone with half a brain cell would surely look there first if they weren't sure. But I can understand your issue being a little harder to pin down in the BGB.

 

[Phillcbr400]

It was one of them cases, I needed the reg that stated "using materials fit for purpose" to show my boss. Before I ask any questions I always try to find the answer myself, but in this case I was called to another job. I had a word earlier with my boss about how much time I get doing the EICR's and said I need to be given time to look through my book etc.

 

[Adam W]

I've come across a lot of SWA recently which hasn't been terminated properly - no gland or anything, the wire just cut off and taped up or stuffed into a compression gland. I appreciate if you're not using the armour as CPC it only needs to be earthed at one end, but this just seems lazy.

 

[PEG]

Should really write a coffee-table book regarding "adaptations" encountered,with nice pics and witty comments...some done by ingenious well meaning non-professionals,and some applied by trading electricians...An "earthing" connection i found recently,BS951 clamp,fitted to exposed armour of SWA,closer inspection reveals piece of galvanised pipe under strands,so clamp is not acting on cores.Pipe is 30mm long and not split,so has had cores threaded through,and fitted intentionally.Just why anyone would go to this much trouble,and not spend a few quid to do it right,is a constant quandary.

 

[Darkwood]

I've come across a lot of SWA recently which hasn't been terminated properly - no gland or anything, the wire just cut off and taped up or stuffed into a compression gland. I appreciate if you're not using the armour as CPC it only needs to be earthed at one end, but this just seems lazy.

Note! Needs to be earthed at the supply end 'not one end' a few scenarios can arise where a load end swa earthing only could fail under the BS7671

 

[Robotstar5]

BS951 clamp should be replaced with a proper gland.....:smile5:

 

[davesparks]

The trouble is those lewden glands are actually listed as armoured glands. But they are intended for connecting something entirely different into lewden plugs as far as I know, I think they were meant for spiral flexi conduit type of things but may be wrong.

 

[Engineer54]

BS951 clamp should be replaced with a proper gland.....:smile5:

View attachment 26912

That looks like one of those old T&E glands, ...do they still make them things??

Dave, i think what you are talking about, was a spiral armoured cable that was once quite popular (maybe still is) on factory machines and machine tools that used a very similar type gland to that shown...

Both of these glands may have changed due to IP requirements that are now required...

 

[davesparks]

That looks like one of those old T&E glands, ...do they still make them things??

Dave, i think what you are talking about, was a spiral armoured cable that was once quite popular (maybe still is) on factory machines and machine tools that used a very similar type gland to that shown...

Both of these glands may have changed due to IP requirements that are now required...

Yes that's exactly what I'm talking about, I think I have heard it called metalflex before. I believe the Americans still use a similar cable?

The gland in the picture has got spiral ribs on the back of the clamps to fit into it

Yes they do still make the ones for T&E, lewden make them and their proper name is 'bonding nipples'
The reason for this is that they were originally used for lead sheathed cable and were used to make the earth connection to the lead sheath.

 

[Engineer54]

Yes that's exactly what I'm talking about, I think I have heard it called metalflex before. I believe the Americans still use a similar cable?

The gland in the picture has got spiral ribs on the back of the clamps to fit into it

Yes they do still make the ones for T&E, lewden make them and their proper name is 'bonding nipples'
The reason for this is that they were originally used for lead sheathed cable and were used to make the earth connection to the lead sheath.

I did know they originated from the old lead sheathed cable, and were carried on to provide a means of connecting PVC T&E cable to metal boxes etc. but never heard them called bonding nipples. Though i guess it makes sense!! lol! Not sure how they fare with the IP requirements you now have, they are basically open to the environment. I guess there is always the ''get out of jail'' cure all adhesive Heat Shrink tubing to close everything off!! ...lol!!

Yes a very similar cable is used quite extensively in the States for general wiring, including Domestic's

 

[Bobster]

Or just use jubilee clips.....

 

[PEG]

Lovely,Rob,but,if they were tight,and of the correct size,then they are a bus ride further on than some i've encountered...really will have to get with the 21st century,and post some...:conehead:

 

[Bobster]

I've seen some absolute corkers.

when I get to my PC I'll post a pic of the last one I found.