Cable Lugs Question

[charzree]

The project specification says, "All compression connectors for 10mm2 (8 AWG) and larger conductors shall have a manufacturer's reference compression die number and conductor size printed or stamped on the connector".

Does Pin type lugs come with conductor size and die number stamped on the lugs?

 

[Megawatt]

The project specification says, "All compression connectors for 10mm2 (8 AWG) and larger conductors shall have a manufacturer's reference compression die number and conductor size printed or stamped on the connector".

Does Pin type lugs come with conductor size and die number stamped on the lugs?

Charzree if you are talking ferrels they make a special tool but you said # 8 and yes it should be listed the bigger ones even tell you how many times you have to crimp it and what size die you need. Really not to sure about # 8 but if no information is available on the lugs my advice is to pull on it as hard as you can which should be done on all connections. Smaller wire for controls especially because if not crimped tight they will pull out. I had a programmer going behind me on a job and he weighed about 300 pounds and couldn’t get my connections loose ?

 

[Eire79]

On an other note has anybody tried crimping a flexible say 50 sq into a 50 lug ,they are never satisfactory and will easily pull out .
IS there a specific lug for flexibles

 

[davesparks]

On an other note has anybody tried crimping a flexible say 50 sq into a 50 lug ,they are never satisfactory and will easily pull out .
IS there a specific lug for flexibles

Generally speaking with flexible conductors often the lug is correct but the crimp dies are wrong, or crimper settings are wrong.

I've got adjustable manual crimper which have different settings for flexible or non-flexible cables.

 

[pc1966]

I've got adjustable manual crimper which have different settings for flexible or non-flexible cables.

What make / model is that?

 

[davesparks]

What make / model is that?

It's a cembre TN120

 

[pc1966]

It's a cembre TN120

Generally the ones I use are the SWA-brand hexagonal die sort and no option for changing size for fine/normal stranded cables. But recent attempts to pull out tri-rated as a sanity check showed it biting as well as I could tell.

I guess somewhere someone has studied the performance of the indent-style of crimp versus the hex-style, but never found it. I know that Cembre do both styles covering some common lug sizes, but again no real guidance as to which to choose!

 

[davesparks]

Generally the ones I use are the SWA-brand hexagonal die sort and no option for changing size for fine/normal stranded cables. But recent attempts to pull out tri-rated as a sanity check showed it biting as well as I could tell.

I guess somewhere someone has studied the performance of the indent-style of crimp versus the hex-style, but never found it. I know that Cembre do both styles covering some common lug sizes, but again no real guidance as to which to choose!

I have an SWA brand set with the rotating hexagon dies that does 6mm up to 50mm too.

I've found that there are certain sizes of tri rate that just don't make a good connection when used with the right sixe hex dies, I can't remember if it was 25mm or 35mm but one of those two was really bad.

 

[pc1966]

It was 25mm tri-rated I was doing recently and seemed OK, but now I'm going to check again!

 

[davesparks]

It was 25mm tri-rated I was doing recently and seemed OK, but now I'm going to check again!

It's only certain sizes where I've had issues, 95mm rings a bell as being odd too.

 

[pc1966]

Never had to go above 50mm myself, seems I have not lived!

 

[davesparks]

Never had to go above 50mm myself, seems I have not lived!

Or maybe you've just been sensible and avoided heavy cables with a mind of their own which fight back.

 

[UKPN]

I have an SWA brand set with the rotating hexagon dies that does 6mm up to 50mm too.

I've found that there are certain sizes of tri rate that just don't make a good connection when used with the right sixe hex dies, I can't remember if it was 25mm or 35mm but one of those two was really bad.

That's why the DNO don't allow tri rated in their meters. (whole current)

 

[pc1966]

That's why the DNO don't allow tri rated in their meters. (whole current)

But the meters are clamp-style, not crimped lugs?

Certainly you need to use ferrules for flexible cables though.

Back to the hex-crimp tightness: I checked the 25mm SWA-brand tool & lug results and it is fine, no movement at any sane force I could apply by two-handed pull. But I have found that other brands of lug have a thinner tube and don't crimp properly in the SWA hex die. I guess the dent-style crimp tool might be more accommodating of tolerance but I have generally always liked the idea of the hex style of crimp as having more uniform pressure all round (if correctly implemented).

 

[PEG]

Klauke manufacture hydraulic crimps and connectors,and definitive spec,for both,for varied types of cable.
I can guarantee that when all three are matched...you are not pulling them apart