http://www.electriciantalk.com All chapters including General, Wiring and Protection, Wiring Methods and Materials, Equipment for General Use, Special Occupancies, Special Equipment, Special Conditions, and Communication Systems. en Fri, 20 Nov 2009 23:59:47 GMT vBulletin 60 http://www.electriciantalk.com/images/misc/rss.jpg http://www.electriciantalk.com http://www.electriciantalk.com/f5/service-question-10059/ Fri, 20 Nov 2009 12:59:19 GMT I ran into a situation several years ago in which a garage was fed from the house by an overhead service. The previous contractor had used Standard... I ran into a situation several years ago in which a garage was fed from the house by an overhead service. The previous contractor had used Standard #6 triplex (ACSR messenger) so, no EGC was run between the two buildings. The neutral and ground in the garage panel were then bonded and a single rod was driven. This new electrode was not tied to the house's original grounding electrode. My first thought was that a diffrence in potential would arise. What do you guys think of this situation, how could it be improved overall? ]]> NEC Code Forum Thayer http://www.electriciantalk.com/f5/service-question-10059/ http://www.electriciantalk.com/f5/ground-rod-not-10054/ Fri, 20 Nov 2009 01:42:07 GMT We are installing new electric service in a campground. Each site has a 50/30/20 amp metered pedistal, fed on 5 site loop with sweetbriar... We are installing new electric service in a campground. Each site has a 50/30/20 amp metered pedistal, fed on 5 site loop with sweetbriar {4/0-4/0-2/0 alum} from a 200 amp disconnect. A seperate #2 alum bond is also run. Some professionals say a ground-rod is required for each pedistal, others say that would be unessary, even others say it would pose a safty hazzard.

What does the forum think?

*The 20 amp receptical is a GFCI, there are 4 disconnects per transformer, there are 2 ground rods at the disconnects bonded to the neutral

Thanks

Lenny ]]> NEC Code Forum Lenny http://www.electriciantalk.com/f5/ground-rod-not-10054/ http://www.electriciantalk.com/f5/tvss-panel-tie-10019/ Wed, 18 Nov 2009 19:40:11 GMT I have a situation which requires installing a external TVSS on a branch panel that is full. I can either install a CB somewhere near the top of the... I have a situation which requires installing a external TVSS on a branch panel that is full. I can either install a CB somewhere near the top of the box and sneak-in under the bus lugs (against code) or what? Any bright ideas? ]]> NEC Code Forum Control4_Ever http://www.electriciantalk.com/f5/tvss-panel-tie-10019/ http://www.electriciantalk.com/f5/journeyman-electician-certification-exam-california-9943/ Sun, 15 Nov 2009 16:46:17 GMT Hi, What year NEC handbook should I practice on for the journeyman exam in California? Hi,

What year NEC handbook should I practice on for the journeyman exam in California? ]]> NEC Code Forum rogimor http://www.electriciantalk.com/f5/journeyman-electician-certification-exam-california-9943/ http://www.electriciantalk.com/f5/west-virginia-jourymans-test-9917/ Fri, 13 Nov 2009 23:31:31 GMT I am taking the test next month codes are no prob for me the only thing I am worried about is the calculations can any one help me and tell me what... I am taking the test next month codes are no prob for me the only thing I am worried about is the calculations can any one help me and tell me what type of questions they are to help me study better ]]> NEC Code Forum modified electric http://www.electriciantalk.com/f5/west-virginia-jourymans-test-9917/ http://www.electriciantalk.com/f5/need-reference-9906/ Fri, 13 Nov 2009 04:51:51 GMT I went to a job today that had URD running thru the wall from the main disconnect to the subpanel about 10' away. No conduit.

No way this can be compliant. Couldn't find a code reference. What am I missing? ]]> NEC Code Forum TxElectrician http://www.electriciantalk.com/f5/need-reference-9906/ http://www.electriciantalk.com/f5/code-change-proposal-9897/ Fri, 13 Nov 2009 00:06:39 GMT Has anyone here ever submitted a code change proposal? Is there a specific way to go about it? Has anyone here ever submitted a code change proposal? Is there a specific way to go about it? ]]> NEC Code Forum MF Dagger http://www.electriciantalk.com/f5/code-change-proposal-9897/ http://www.electriciantalk.com/f5/power-strip-feeding-power-strip-9893/ Thu, 12 Nov 2009 19:27:23 GMT I have an electrician coworker that is making his own 120VAC 4 plex outlets with a six foot SO coord extensions and plug. He has done so with 208VAC... I have an electrician coworker that is making his own 120VAC 4 plex outlets with a six foot SO coord extensions and plug.
He has done so with 208VAC too.
He has mounted these power strips to equipment to feed each other in a daisy chain fashion for supplying equipment power.
He said that because the installations are temporary that he can do this.

I can not find in the NEC that specifically says you cannot feed a power strip by plugging in another power strip.
It does not seem legal. ]]> NEC Code Forum Dr_Evil http://www.electriciantalk.com/f5/power-strip-feeding-power-strip-9893/ http://www.electriciantalk.com/f5/feeder-service-9808/ Sun, 08 Nov 2009 17:00:39 GMT I have come across what I believe to be a violation. But the HO's inspector has approved the installation.
The HO purchased single to two cable lugs (adapters) for his meter. He has used one set for the house and the other set for an unattached garage. He has also pulled a 3 wire feeder. No disconnect for the feeder or unattached structure. The garage is unattached and he has it connected like a service panel. His inspector has approved it. He is on the 2008 code cycle. Feedback appreciated. ]]> NEC Code Forum John Valdes http://www.electriciantalk.com/f5/feeder-service-9808/ http://www.electriciantalk.com/f5/grounding-9807/ Sun, 08 Nov 2009 16:49:18 GMT I'm trying to interpret grounding in the code book for future knowledge. So please let me know if I am understanding this correctly. The electrodes you can use are waterpipe, rod or pipe, metal frame of a building, plate, concrete incased, and ground ring. Now with that said, I just want to make sure I'm not missing anything, I can use a ground rod for a house, but i have to bond it to the water pipe if its metallic anyways, and if i want to use a water pipe i have to supplement it with a rod or any other gec, I can use rubar too if its 1/2 inch according to concrete incased, and its 20ft in contact. Now hoping I understand that correctly, I would probably use a ground ring for a large building right? I remember hearing someone tell me for a large building you use a ground ring, but I guess my real question is how do you determine what load would be too much for a ground rod and what are the benefits of using ground ring? thank you guys. ]]> NEC Code Forum ricoreece1 http://www.electriciantalk.com/f5/grounding-9807/ http://www.electriciantalk.com/f5/history-gfci-9797/ Sun, 08 Nov 2009 05:27:29 GMT http://video.yahoo.com/watch/2386033?fr=yvmtf http://video.yahoo.com/watch/2386033?fr=yvmtf ]]> NEC Code Forum Joe Tedesco http://www.electriciantalk.com/f5/history-gfci-9797/ http://www.electriciantalk.com/f5/modular-furniture-9784/ Sat, 07 Nov 2009 12:29:49 GMT When doing office furniture, If you have to move a modular partition wall to get access to a feed box does that make it not accessible? When doing office furniture, If you have to move a modular partition wall to get access to a feed box does that make it not accessible? ]]> NEC Code Forum lakeveiw http://www.electriciantalk.com/f5/modular-furniture-9784/ http://www.electriciantalk.com/f5/cec-advice-9772/ Fri, 06 Nov 2009 21:22:03 GMT in 1 year i will be ready to pass my exam for my CEC ( canadian electric code) licence C, just wanted to know i want to buy my CEC book and study it... in 1 year i will be ready to pass my exam for my CEC ( canadian electric code) licence C, just wanted to know i want to buy my CEC book and study it but does anyone know any good place on internet for free or cheap training i could look to pass that exam more easy. i know i could cheat and buy the result and stuff but i dont want to do that.

thanks ]]> NEC Code Forum martindag http://www.electriciantalk.com/f5/cec-advice-9772/ http://www.electriciantalk.com/f5/laundry-areas-9764/ Fri, 06 Nov 2009 04:29:25 GMT 2008 NEC In the branch circuits section Article 210.52(F) Laundry Areas. In Dwelling units, at least one receptacle outlet shall be installed... 2008 NEC In the branch circuits section Article 210.52(F)
Laundry Areas. In Dwelling units, at least one receptacle outlet shall be installed for the laundry. Then there are two exceptions

Exception No. 1: In a dwelling unit that is an apartment or living area in a multifamily building where laundry facilities are provided on the premises and are available to all building occupants, a laundry receptacle shall not be required.

Exception No. 2: In other than one-family dwellings where laundry facilities are not to be installed or permitted, a laundry receptacle shall not be required.


My question is if there are not any laundry facilities at the apartment, wouldn't you have to put in a laundry receptacle outlet in the living areas? Maybe an example or a clarification of the second exception would help. thanks ]]> NEC Code Forum Shubey http://www.electriciantalk.com/f5/laundry-areas-9764/ http://www.electriciantalk.com/f5/copper-pipe-used-place-emt-9757/ Thu, 05 Nov 2009 23:24:36 GMT Was at an apartment building today, we are doing the lighting, fire alarms, exits, surveilance etc and associated conduit. Was in the electrical... Was at an apartment building today, we are doing the lighting, fire alarms, exits, surveilance etc and associated conduit.

Was in the electrical room rolling back the wire from the temp panel and all of the existing panels had copper tubing running into all of the different panels.

Building is from the 50s

the bends looked like they were done by hand, like the panels had dreads coming out of them. It looked really bad

Curious if this was common place in the past? What had me curious was that the main disconnect was fairly new and had the most copper pipe running into it ]]> NEC Code Forum Breakfasteatre http://www.electriciantalk.com/f5/copper-pipe-used-place-emt-9757/