Foot pounds of Torque for breakers and lugs.

Status
Not open for further replies.
S

stuartdmc

Senior Member
Location
Newport Beach, Irvine, CA
My inspector is asking me to have the torck wrench and paper work to show the appropriate foot pound torck for all my connections at the time of final inspection. Were would I fined the appropriate paper work to show what foot pound to torck my connections?
 
stuartdmc said:
My inspector is asking me to have the torck wrench and paper work to show the appropriate foot pound torck for all my connections at the time of final inspection. Were would I fined the appropriate paper work to show what foot pound to torck my connections?
Click to expand...

They are on the panel label. If you buy Polaris and such the supply house should grab a Polaris and the torque specs out of the box for you.
 
stuartdmc said:
My inspector is asking me to have the torck wrench and paper work to show the appropriate foot pound torck for all my connections at the time of final inspection. Were would I fined the appropriate paper work to show what foot pound to torck my connections?
Click to expand...

First off it is inch pounds, you will break stuff if your using foot pounds.

The info is on the tags in or on the panel or breakers.
 
stuartdmc said:
My inspector is asking me to have the torck wrench and paper work to show the appropriate foot pound torck for all my connections at the time of final inspection. Were would I fined the appropriate paper work to show what foot pound to torck my connections?
Click to expand...


Sorry, but. Dont you guys torque your connections? :-?
 
Darned tight, plus one-quarter turn. :)

The Professional Electrical Apparatus Recycler's League ( PEARL ) has generic torque specifications in Table 1 of their "reconditioning standard". This is helpful when dealing with vintage and obsolete equipment, when it's being relocated, refed with new conductors, etc., when the original torque specifications are unknown and not available by other means.

http://www.pearl1.org/pdfs/pearl.pdf
 
OK 12 inches.....................= a foot Chris the number of calls we get asking this question baffles me.

A foot pound is the torque you get when you apply a pound of force on the end of a 1 foot rod. So 1 ft*lb = 12 in*lbs. Simply multiply your ft*lb torque by 12 to get inch*lbs.
 
chris kennedy said:
You could have given OP the conversion.:smile:
Click to expand...

I think he may have not provided it because except for very large torque values, the wrench will not be marked in ft-lbs. The largest torque I remember using was 300 in-lb which is 25 ft-lbs. Most wrenches marked in ft-lbs will not measure that low.

At any rate, in-lbs = ft-lbs * 12 and ft-lbs = in-lbs/12

Mark
 
Cable lug torque requirements are a function of the size of the connector screw size and construction, they are not specific to any manufacturer.
 
brian john said:
OK 12 inches.....................= a foot Chris the number of calls we get asking this question baffles me.
Click to expand...

Or you could read the instructions that come with the shiny new tool. Its all there.
 
The NEC Handbook has a good section on torque values in the commentary following 110.14 (doing that from memory). It's what I use when the torque is not listed. Always in the van.

Mark
 
Boy what a pickle I?ve gotten myself into..

Boy what a pickle I?ve gotten myself into..

stickboy1375 said:
Sorry, but. Dont you guys torque your connections? :-?
Click to expand...

I ran a 225amp feed 400ft with (2) 2?conduits - 4 #2/0 THHN copper each, to a 225 amp dock powered pedestal. To prevent an extreme voltage drop I up sized my wire and ran parallel runs. The problem is that I have installed my OCPD in line prier of going down to the dock , and now, I am finding out that the 225A circuit breaker within the Disconnect will not accept two 2/0 wires or double lugs. So, what I?ve done is, I?ve cut in a junction box to tap and extend each conductor, both line and load with a single 4/0 wire going too and from the circuit breaker. This connection is made using a ?Greave? connector rated for 250kcmil to a # 6 AWG.
This is what the inspector needs to see the torque on as well as the circuit breaker,

Oh, the main 225A circuit breaker won?t accept the two wire?s as well.
 
mdshunk said:
Darned tight, plus one-quarter turn. :)

The Professional Electrical Apparatus Recycler's League ( PEARL ) has generic torque specifications in Table 1 of their "reconditioning standard". This is helpful when dealing with vintage and obsolete equipment, when it's being relocated, refed with new conductors, etc., when the original torque specifications are unknown and not available by other means.

http://www.pearl1.org/pdfs/pearl.pdf
Click to expand...

I will stay out of this one Marc.....We have had this debate before as far as live work......remember?:smile:
 
stuartdmc said:
I ran a 225amp feed 400ft with (2) 2?conduits - 4 #2/0 THHN copper each, to a 225 amp dock powered pedestal. To prevent an extreme voltage drop I up sized my wire and ran parallel runs. The problem is that I have installed my OCPD in line prier of going down to the dock , and now, I am finding out that the 225A circuit breaker within the Disconnect will not accept two 2/0 wires or double lugs. So, what I?ve done is, I?ve cut in a junction box to tap and extend each conductor, both line and load with a single 4/0 wire going too and from the circuit breaker. This connection is made using a ?Greave? connector rated for 250kcmil to a # 6 AWG.
This is what the inspector needs to see the torque on as well as the circuit breaker,

Oh, the main 225A circuit breaker won?t accept the two wire?s as well.
Click to expand...


http://www.greaves-usa.com/catalog.html This site should get you the torque rating of the lugs, might have to make a phone call, cant seem to find anything on the site.
 
Status
Not open for further replies.
Top