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Search took 0.14 seconds. Search: Posts Made By: roger
Forum: NEC Yesterday, 04:19 PM
Replies: 38
Views: 640
Posted By roger
Charlie, that "general rule" doesn't have to used...

Charlie, that "general rule" doesn't have to used here as long as 225.7 is included in the NEC.

Remove 225.7 and you have an argument.

Roger
Forum: Safety Yesterday, 02:22 PM
Replies: 2
Views: 66
Posted By roger
Find out where the leakage is and fix it. In...

Find out where the leakage is and fix it. In short, for there to be net current, some of the current is taking a path other than the conductors it should be taking.

Roger
Forum: NEC Yesterday, 12:41 PM
Replies: 38
Views: 640
Posted By roger
Correct, but it will not be current from breakers...

Correct, but it will not be current from breakers 1 and 3, so this set of conductors, ungrounded 1, 3, and the neutral, still meets the definition of a MWBC. Current is not part of the definition...
Forum: NEC Yesterday, 10:55 AM
Replies: 38
Views: 640
Posted By roger
Dennis, circuits 1-3, 5-7, 2-4, and 6-8, all meet...

Dennis, circuits 1-3, 5-7, 2-4, and 6-8, all meet the definition of a MWBC



Roger
Forum: NEC Yesterday, 07:55 AM
Replies: 38
Views: 640
Posted By roger
Dennis, there are actually four MWBC's shown,...

Dennis, there are actually four MWBC's shown, 1-3, 5-7, 2-4, and 6-8. If these were not MWBC's the common grounded conductor would have to be a 160 amp conductor in lieu of the 80 amp conductor...
Forum: NEC Yesterday, 07:15 AM
Replies: 1
Views: 45
Posted By roger
I believe the requirement is in NFPA 72 and I...

I believe the requirement is in NFPA 72 and I don't have it in front of me at the moment.

Roger
Forum: NEC Yesterday, 07:06 AM
Replies: 38
Views: 640
Posted By roger
With the proper handle ties you could purchase....

With the proper handle ties you could purchase. In the illustration shown you could tie the four MWBC's with four handle ties.

Roger
Forum: NEC 11-19-2009, 06:28 PM
Replies: 38
Views: 640
Posted By roger
But it is allowed in 225.7...

But it is allowed in 225.7 http://electrical-contractor.net/forum/iw/commonneutral.JPG


Roger
Forum: NEC 11-19-2009, 12:46 PM
Replies: 38
Views: 640
Posted By roger
It is specifically allowed in 225.7(B) and is not...

It is specifically allowed in 225.7(B) and is not specifically prohibited anywhere else in the NEC.

Roger
Forum: Safety 11-19-2009, 06:38 AM
Replies: 62
Views: 2,274
Posted By roger
Scott is in the same area so he probably does. ...

Scott is in the same area so he probably does.

Roger
Forum: Electrical Contracting and Estimating/Management 11-17-2009, 08:04 PM
Replies: 18
Views: 457
Posted By roger
Look into a Bigass fan...

Look into a Bigass fan (http://www.bigassfans.com/)

Roger
Forum: Continuing Education (CEU) 11-16-2009, 09:17 PM
Replies: 7
Views: 226
Posted By roger
He was a member here before he retired as an...

He was a member here before he retired as an instructor and I'm not sure what his age was, after he retired he disappeared and IMO is greatly missed, he provided some outstanding educational...
Forum: Continuing Education (CEU) 11-16-2009, 08:53 PM
Replies: 7
Views: 226
Posted By roger
Here is an illustration from an old member Ed...

Here is an illustration from an old member Ed MacLaren.

http://electrical-contractor.net/BCodes/3wire3.gif

Notice that it does not introduce 240 volts across the load with the greater...
Forum: NEC 11-15-2009, 08:59 PM
Replies: 13
Views: 449
Posted By roger
Same here. Roger

Same here.

Roger
Forum: Grounding versus Bonding 11-14-2009, 12:58 PM
Replies: 15
Views: 253
Posted By roger
Just cut it off even with the sheath, it does not...

Just cut it off even with the sheath, it does not have to be connected to anything.

Roger
Forum: NEC 11-14-2009, 09:38 AM
Replies: 21
Views: 387
Posted By roger
I'm worn slap out. ;) Roger

I'm worn slap out. ;)

Roger
Forum: NEC 11-13-2009, 11:44 PM
Replies: 21
Views: 387
Posted By roger
You're welcome and good luck with the project. ...

You're welcome and good luck with the project.

Roger
Forum: NEC 11-13-2009, 10:41 PM
Replies: 21
Views: 387
Posted By roger
See 250.50 through 250.56 Roger

See 250.50 through 250.56

Roger
Forum: Electrical Contracting and Estimating/Management 11-13-2009, 10:37 PM
Replies: 12
Views: 300
Posted By roger
:grin: Roger

:grin:

Roger
Forum: NEC 11-13-2009, 10:07 PM
Replies: 21
Views: 387
Posted By roger
Yes Both would have to be sized per 250.30. ...

Yes
Both would have to be sized per 250.30.

Roger
Forum: NEC 11-13-2009, 09:50 PM
Replies: 21
Views: 387
Posted By roger
Correct Yes, but bonded would be the more...

Correct
Yes, but bonded would be the more correct term.

Roger
Forum: Electrical Contracting and Estimating/Management 11-13-2009, 09:47 PM
Replies: 12
Views: 300
Posted By roger
The wire pulls were nothing, once I picked up a...

The wire pulls were nothing, once I picked up a 2000kw generator with 4000 gallons of fuel in it to retrieve a screw driver I dropped down the wire entrance, of course that was when I was younger...
Forum: NEC 11-13-2009, 09:33 PM
Replies: 21
Views: 387
Posted By roger
Then you are right, it is not an SDS and the...

Then you are right, it is not an SDS and the utility (normal power) grounding is the grounding for both systems.

Roger
Forum: NEC 11-13-2009, 09:13 PM
Replies: 21
Views: 387
Posted By roger
Are you switching the neutral in the transfer...

Are you switching the neutral in the transfer switch?

Roger
Forum: Electrical Contracting and Estimating/Management 11-13-2009, 09:08 PM
Replies: 12
Views: 300
Posted By roger
Correct, there is not. I have pulled runs...

Correct, there is not. I have pulled runs consisting of (4) 500 kcmil over 800'

Go here (http://www.electrician2.com/calculators/ductwirepull.htm) for a raceway wire pulling calculator

Roger
Showing results 1 to 25 of 500
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