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Type: Posts; User: augie47

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1. ## Thread: Another Pool Question

by augie47
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36\$\$
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655

### On the other hand, take the pool out of the...

On the other hand, take the pool out of the picture. Go 100 ft from the house, build a wall or rack, mount a panelboard and a time clock on it to feed some
lighting and a well pump.
By NEC...

by augie47
Replies
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### I allowed this post as the OP is not asking any...

I allowed this post as the OP is not asking any DIY question.
3. ## Thread: Detached Building Art. 225 Question

by augie47
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### In his case, we have (3) s.p. 20 amp breakers...

In his case, we have (3) s.p. 20 amp breakers therefore we have a situation where the sum of the breakers = 60, but the sum of phase A is only 40 and B only 20. Does that suffice having a "combined...
4. ## Thread: Detached Building Art. 225 Question

by augie47
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### ' Unless I've been misreading them for years,...

'

Unless I've been misreading them for years, most do. The ones I see normally have a tag "suitable for use as service equipment when no more than 6....."
5. ## Thread: Secondary protection for an autotransformer?

by augie47
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### Let's hit the "reset" button for a second. OP...

Let's hit the "reset" button for a second.
OP stated: "600-480V three phase 45kVA autotransformer."
Is there such an animal ? The only autotransformers with which I am aware would not provide that...
6. ## Thread: Secondary protection for an autotransformer?

by augie47
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### I agree this would be the appropriate view of a...

I agree this would be the appropriate view of a delta-delta transformer.

(side note: The thread states "autotransformer"... I know of no autotransformer that would provide these voltages......
7. ## Thread: Detached Building Art. 225 Question

by augie47
Replies
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### Detached Building Art. 225 Question

Another inspector posed this question to me in regard to Art 225 ('08)
225.33 allows the disconnecting means for a detached building to consist of no more than six circuit breakers.
225.38(B) calls...
8. ## Thread: Derating of Conductors: allowable # 10 wires in conduit EMT

by augie47
Replies
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### Obviously, out of thin air :D I actually went...

Obviously, out of thin air :D I actually went to the Tables but just as obviously need my money back on my recent cataract surgery... Table C1 1" 16 #10s so, as you stated (8) 2 wire branch...
9. ## Thread: Aluminum Neutral with Copper Ungrounded Conductors

by augie47
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### do you have a Code reference for that ?

do you have a Code reference for that ?
10. ## Thread: Derating of Conductors: allowable # 10 wires in conduit EMT

by augie47
Replies
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### The "standard" answer, without qualifications...

The "standard" answer, without qualifications would be 20 conductors.
1" EMT will allow 20.
If you "always" have your neutral current-carrying then the neutrals must count in your ampacity...
11. ## Thread: Bonding gas pipe on 320 amp service

by augie47
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### IMO, based on the above mentioned 250.104(B) the...

IMO, based on the above mentioned 250.104(B) the circuit feeding the equipment should suffice so I would not be concerned.
Note, however, the mechanical code addresses bonding of CSST gas piping, if...
12. ## Thread: grounding and bonding at water meter

by augie47
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### As pointed out in 250.64, he can have a properly...

As pointed out in 250.64, he can have a properly sized common grounding electrode conductor from the grounding electrode to the service location and tap from that to each disconnect by means of a...
13. ## Thread: grounding and bonding at water meter

by augie47
Replies
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### Not permissible. 250.64 requires the install to...

Not permissible.
250.64 requires the install to be such that complete removal of one disconnecting means will not interrupt the grounding electrode conductor path of the remaining disconnects,....
14. ## Thread: Mobile Home Service and Grounding Electrode Conductor To Rod

by augie47
Replies
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### If one considers the remote service disconnect as...

If one considers the remote service disconnect as a "structure", IMO, you are correct. I see nothing in the Code directing me otherwise (perhaps someone will enlighten us). That said, for unknown...
15. ## Thread: Electrical calculation question

by augie47
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### junkhound: I took the liberty of deleting your...

junkhound: I took the liberty of deleting your post.
(a) I could not see where it added to the thread, only confused the issue and (b)
the answers supplied seemed to be on the right track .

...
16. ## Thread: grounding and bonding at water meter

by augie47
Replies
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### The bottom line is Dave's reference to 250.64,...

The bottom line is Dave's reference to 250.64, (D) in particular.
17. ## Thread: Electrical calculation question

by augie47
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### That;s one of those "separates the men from the...

That;s one of those "separates the men from the boys" questions :D
Is this prep for a test ? It certainly incorporates some mathematical electrical knowledge.
I'm sure of few of us will accept...
18. ## Thread: installation of EMT 9or FMT) within a curtain wall mullion system

by augie47
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### Poll: For the OPs benefit, I added a poll. (My choice...

For the OPs benefit, I added a poll.
(My choice is b)

by augie47
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### same thoughts here

same thoughts here
20. ## Thread: Step-down Transformer Ground Connection Point

by augie47
Replies
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### Double dog dang it ! I wish "they" would quit...

Double dog dang it ! I wish "they" would quit moving things !!! O.K., back to the original thinking.... IF there is a metal water pipe grounding electrode on the premises and no structural metal...
21. ## Thread: Mobile Home Service and Grounding Electrode Conductor To Rod

by augie47
Replies
14\$\$
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### 550.4 would seem to me to indicate that 550.32...

550.4 would seem to me to indicate that 550.32 would be applicable, however, in my experience enforcement has been lax when it comes to contractor job trailers.
The same hold true for 250.32 and...
22. ## Thread: Step-down Transformer Ground Connection Point

by augie47
Replies
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### It looks like it may be my foot in mouth time....

It looks like it may be my foot in mouth time. The exception to 250.52 has been removed in the '11 but so has the "5 ft wording". If I am reading the '11 correctly, you can use the water pipe for a...
23. ## Thread: Another Pool Question

by augie47
Replies
36\$\$
Views
655

### Thought it was clarified earlier. 250.32...

Thought it was clarified earlier. 250.32 requires a grounding electrode for the panel at a separate structure (it does not require one for a single or multiwire branch circuit).
If you pool...
24. ## Thread: Step-down Transformer Ground Connection Point

by augie47
Replies
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368

### But in '08 (I have not had time to review...

But in '08 (I have not had time to review earlier) 250.52(A)(1) states "located more than 5 ft ..shall not be used as part of the grounding electrode system or as an conductor to interconnect...
25. ## Thread: Ground / bond ?

by augie47
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### I;m in agreement and this question would not...

I;m in agreement and this question would not change the answer IMO but is the sub fed by a breaker in the main or is it "feed thru" ?
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