Is this type of elbow OK for "buried" use?

[Ted Allen]

Originally Posted by mthomas2

Rigid conduit from meter to service disconnect.

Is this pull elbow OK for "buried" use?

If not, code cite of possible, please.

Thanks.

NO it is not.

[Marc D. Shunk]

Originally Posted by tallen

The primary of a transformer draws 4 amps at 7,200 volts.A reading at the secondary shows 110 amps at 240 volts. What is the efficiantcy of the transformer at this load?

91-2/3%. Let's move on... I'm only here to help where I can.

[Ted Allen]

Close. lol

Efficiency= output 110x 240 26,400
______ = ________ ______ = 91.67%
input 4 x7,200 28,800


Ok, OK I am just having fun.

Please carry on and again welcome to the show.

[Ted Allen]

Hey that did not show up like I typed it. lol

[Marc D. Shunk]

Originally Posted by tallen

Hey that did not show up like I typed it. lol

To maintain spacing, for math formulas and the like, you need to begin and end your text with {code} and {/code}, except replace the {} with [].

[Marcel R. Cyr]

Pardon my ignorance to cite the NEC here, but wouldn't the fact that this question is from Illinois and Maine would have slightly if not more frost issues, mandate an installation to alleviate possible damage to the meter enclosure as shown in one of the pics.?

In any case, I would write this up hard and would explain that any underground service from the meter enclosure be sleeve protected and LB's are not to be buried and should be accessible.
This LB shown does not appear to even be a liquid tite fitting.
What will happen when this thing starts taking in water?

I don't think that quoting fancy UL listings about the product explains the logical installation requirements that should occur in a service entrance to a dwelling.

There are no Engineering Specifications and design requirements that would allow this type of installation on any Commercial jobs that I have done to date.

Isn't there a limited horizontal distance requirement for the main secondary feeders?
Just dose not look right.

JMHO

Marcel



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[jtedesco1]

A Conduit Body is what I see and access is always required behind that cover.

Todd, quit busting my chops!

[Marc D. Shunk]

Originally Posted by mcyr

This LB shown does not appear to even be a liquid tite fitting.
What will happen when this thing starts taking in water?

That LB apears to have threaded hubs, and is rated for a wet location.

Originally Posted by mcyr

I don't think that quoting fancy UL listings about the product explains the logical installation requirements that should occur in a service entrance to a dwelling.

True. That link was provided for completeness sake, and technical enlightenment for any that care to read this additional information. I will absolutely concede that the population of folks interested in that additional information might be quite small. The original poster's question was already answered in a direct manner in the posts that proceeded that link. The (perhaps sad) fact remains that the installation is compliant, excpet for the non-exposed LB cover.

[Ted Allen]

Originally Posted by jtedesco1

A Conduit Body is what I see and access is always required behind that cover.

Todd, quit busting my chops!

I think I said that.

Aw hell Joe give me a Kiss ....It is New years after all.

I was just razzing you.

[Ted Allen]

If you can open it, it must be accesible to qualified personel. J boxes can not be made inaccesible.

[jtedesco1]

WRONG!

Boxes, Conduit Bodies, and Handhole Enclosures to Be Accessible

Boxes, conduit bodies, and handhole enclosures shall be installed so that the wiring contained in them can be rendered accessible without removing any part of the building or, in underground circuits, without excavating sidewalks, paving, earth, or other substance that is to be used to establish the finished grade.

Exception: Listed boxes and handhole enclosures shall be permitted where covered by gravel, light aggregate, or noncohesive granulated soil if their location is effectively identified and accessible for excavation.

[jtedesco1]

Guess what is type of information is included in between these [ ] brackets?

Come on who's the winner?

Oh, and by the way I don't see any gasket on the LB either!

[Marc D. Shunk]

Examples of boxes that can utilize that exception, and have the lid buried under light material, are enclosures such as Quazite boxes:

[Paul W. Abernathy]

Most excellent.....great example Marc.......

Todd.....you mean

OutPut/Input x 100 = Efficiency Percentage

[Paul W. Abernathy]

Man It is TOO late for Mathmatics fella......lol..heads will start expoding all over the place Todd.....and no we dont need a POLL on it...thehehe..