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mr500 03-26-2008 08:04 PM

Torque
 
When installing breakers and such, I know that there are torque specs, but Im just wondering how many actually torque the wires as opposed to tightening really good?

I have torque wrenches lol that would do the job, but is it overkill?? Just a newbie question is all.:thumbup:

handyman78 03-26-2008 08:12 PM

I would suggest to try a few times with a (not-in-use!) receptacle and a few pieces of 12g and 14g wire on the screw terminals to get the feel right. Once you know what to expect just continue that amount of tightness for other fittings. When the wire is tightened down, there should be no movement under the screw if you wiggle the wire. It depends on your hand and forearm strength to get it just right for you without using torqueing tools.

micromind 03-26-2008 08:45 PM

With basic breakers, switches, recptacles and such I don't bother with a torque wrench. Even big wire lugs. Just tighten them down. I've broken enough screws and stripped out enough lugs over the years that I've get a pretty good idea just how far I can go.

With switchgear, especially medium voltage (over 600V, less than 35,000V), the bus splice plates, breaker mounting fingers, etc. always get torqued to specs. Usually a 'click type' torque wrench. Some engineers even want a calibration certificate on the torque wrench.

Rob

goose134 03-26-2008 09:57 PM

I use a torque wrench on any lug in a panel, switchgear, transformer and the like. Switches and receptacles I've never really bothered with, you can get the feel. I've only seen a torqueing screwdriver ONCE. I could not believe how much he said it cost. About $120.

The torque wrench provides you with the peace of mind that you are tightening things to specs. Not guessing. I've seen too many guys who think "gorilla tight" is an acceptable method of tightening lugs. They also seem surprised when they strip them.

InPhase277 03-26-2008 11:05 PM

My elbow pops when the right torque is reached...

InPhase277

jbfan 03-26-2008 11:10 PM

Quote:

Originally Posted by InPhase277 (Post 111210)
My elbow pops when the right torque is reached...

InPhase277

My elbow pops when I get up in the morning!:jester:

InPhase277 03-26-2008 11:16 PM

Quote:

Originally Posted by jbfan (Post 111212)
My elbow pops when I get up in the morning!:jester:

So you're always torqued?

InPhase277

jbfan 03-26-2008 11:54 PM

Quote:

Originally Posted by InPhase277 (Post 111216)
So you're always torqued?

InPhase277

You bet. Every morning when the clock goes off!

Stubbie 03-27-2008 12:31 AM

I use the grunt technique. One ughhhh is just about right. Two is pushing it.

I threw my clock away on 1/01/07.

jrclen 03-27-2008 11:51 AM

Quote:

Originally Posted by Stubbie (Post 111237)
I threw my clock away on 1/01/07.

You beat me by 2 days. Now I work for me and I am never worried about being late. No need for a clock. I have a great boss.


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