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Old 09-20-2011, 09:15 AM   #31
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Multiple circuits (separate neutral) in a conduit with receptacles


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Originally Posted by frenchelectrican View Post
Just take a older or other flat screwdriver which it will get damaged over the time and use that with a hammer or a niner { linemans pliers } and give a good whack on it you will have to do that few time to make sure it is good and tight.
I understand that the screw in the side of a conduit coupling needs to be tight but could you explain how whacking the end of the screwdriver handle with a hammer or heavy pliers helps as opposed to causing damage (even stripping the threads of the petite screw and then it becomes loose forever)?

(Yes, using screwdriver and hammer is often needed to tighten the castellated (and toothed) ring nuts that hold nipples and cable clamps in the panel openings.)

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Last edited by AllanJ; 09-20-2011 at 01:08 PM.
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Old 09-20-2011, 12:42 PM   #32
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Multiple circuits (separate neutral) in a conduit with receptacles


Allen.,

I am glad you asked me this question on this one anyway here it goes.,

When you tighten them down just couple light to med taps I know that part work fine with steel locknuts but zinc locknuts just dont go super crazy with it it will not take much effort to damage it fast.

Also Allen., if you ever ran into larger one like 2 inch or larger locknuts you will see why the last time I have big arse 6 inch locknut on 6 inch conduit I really have to hit it pretty hard { if you have hammer drill run in hammer mode and drive it tight }

As far for the readers .,,

You can get them hand tighten then tap couple time { not super hard s.v.p. }
then it will stay good and tight unless you have paint coating then you have to scrap it off so it will have good concat. This part you may have to pay attetion to the panel boards due they have good coating of paint and I know some locknuts can go thru the paint but not always the case so just keep in your mind when you do use any metal conduit for EGC purpose { PVC or NM's do not count on this part }

Merci,
Marc

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