Joining cables.

[Guest77]

Joining it in the trunking is IMO rough, a metal box bushed to the side of the trunking with din rail connectors inside a much better option.

 

[Leesparkykent]

As the singles are in trunking could they of been replaced from point to point?

 

[Mellykp1]

Thanks tigerPaul but in reference to my question is it wrong to join cables and put them back in metal trunking.

 

[tigerpaul]

I'm not searching through my books now, but I doubt if it is "against the regulations", but it is not best practice.

 

[Mellykp1]

Unfortunately they could not be replaced point to point and thanks everyone for your advise I know now to put a box on the outside and put all the joins in there.

 

[Guest77]

Thanks tigerPaul but in reference to my question is it wrong to join cables and put them back in metal trunking.

experience would tell you it is not a good idea.

 

[davesparks]

Joining it in the trunking is IMO rough, a metal box bushed to the side of the trunking with din rail connectors inside a much better option.

Rough? yes
non compliant? No

 

[Guest77]

Rough? yes
non compliant? No

should be though and experienced sparks who have worked in industrial situations over the years have no doubt had a whack or two off a crimped single in a trunking, when pulling in other cables it is not nice when a crimp comes off. Obviously it is more than likely the crimp isn't on properly or insulated properly but it happens and IMO should be outlawed, that said I agree it isn't against the regs, well to the best of my knowlege, just a totally carp way of doing a job and I would dismiss any of my sparks doing a job like that.

 

[Spoon]

I will have to have a search of this site for people who in the past have said its Ok to crimp cables together.
Crimping cables is 'maintenance free' so why should it go into a box? Does the same go for soldered connections then?

 

[davesparks]

I will have to have a search of this site for people who in the past have said its Ok to crimp cables together.
Crimping cables is 'maintenance free' so why should it go into a box? Does the same go for soldered connections then?

Being maintainance free does not negate the requirement to enclose the joint, it negates the need for that enclosure to be accessible. Yes the same does go for soldered connections.
This thread is not about whether or not the joint needs enclosing, but whether trunking is a suitable enclosure.
The answer to the best of my knowledge is that trunking is an acceptable enclosure but it is considerably bad practice because of the risk of damaging that connection when drawing in or removing other cables.

 

[markc123]

Thanks darkwood I'll get the boss to by the new book thanks for your help.

the 'red' book your using went out of use in 2011 ... the green book came in, and now the yellow.

Tell your boss to get up to date, we all have to fork the IET con money out every 3/4/5years.

 

[telectrix]

personally, i can't find fault with a soldered or crimped join, sleeved over with heatshrink, in trunking.

 

[Spoon]

Being maintainance free does not negate the requirement to enclose the joint, it negates the need for that enclosure to be accessible. Yes the same does go for soldered connections.
This thread is not about whether or not the joint needs enclosing, but whether trunking is a suitable enclosure.
The answer to the best of my knowledge is that trunking is an acceptable enclosure but it is considerably bad practice because of the risk of damaging that connection when drawing in or removing other cables.

Yes, this thread is about the OP who has crimped some cables together inside some metal trunking. I don't see a problem or the need to add a metal box to the trunking.
I don't see how you can damage the connection. I presume its been properly done and if any other wires are required in the trunking then take the lid off and add them. No damage done.

 

[Guest77]

It is rough and I have worked on large sites where the engineer would have you thrown off site for purposely installing a joint in a trunking which is actually a containment system not a joint box, as mentioned by myself and others we know it is not against the regs, but the regs are the minimum standards and most of us more experienced electricians wouldn't consider this unless all other avenues were closed,we have all seen trunkings with a birds nest of singles in them running around bends and with crimped cables in lol, it just isn't right really.

 

[Guest77]

personally, i can't find fault with a soldered or crimped join, sleeved over with heatshrink, in trunking.

Consider yourself dismissed and out of the club :38: