ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
It's been an interesting career
by gfretwell - 05/23/22 09:29 PM
Material shortages???
by HotLine1 - 05/23/22 01:56 PM
Run Cap subsitution question. Two vs. one
by LarryC - 05/20/22 09:01 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 34 guests, and 13 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#209283 03/22/13 12:38 PM
Joined: Mar 2004
Posts: 251
W
Member

WESTUPLACE #209284 03/22/13 03:00 PM
Joined: Oct 2006
Posts: 745
E
Member
Holy cow! Talk about a completely useless subject and answer.


---Ed---

"But the guy at Home Depot said it would work."
EV607797 #209285 03/22/13 03:04 PM
Joined: Jul 2007
Posts: 1,335
S
Member
Does any poco offer a 3 phase residential rate? A small commercial rate with demand factors is the closet I know but that would be an expensive bill each month


"Live Awesome!" - Kevin Carosa
WESTUPLACE #209286 03/22/13 05:47 PM
Joined: Jul 2007
Posts: 265
W
Member
A few houses around here have 3 phase services, put in 20 or more years ago. As far as I know the power companies do not offer a three phase residential service. The only advantage I see is for HVAC, but at least around here all the AC equipment suppliers only offer a 1 year warranty on commercial(three phase) units, while a 10 or more year warranty on residential units. That is on the compressor of course.


Jimmy

Life is tough, Life is tougher when you are stupid
WESTUPLACE #209287 03/22/13 08:18 PM
Joined: Jun 2004
Posts: 1,273
T
Member
IIRC, in the EUSERC area (Western States) the upper limit for single phase service is 400 Amps.

If a mega-mansion needs more then it's going to be 3-phase: 208Y120 Volts.

Center-tapped delta 240 is no longer permitted in new installations -- as a rule.

(The machine tool industry has phased out 230V delta motors for quite some time. Dual voltage 230/460 is the norm. So, 480/277 Volt Services are the EUSERC industrial shop solution.)

EUSERC has banned/ shunned center-tapped delta Services because of their higher rate of risk for injury and damage. They are still available -- but only by exception/ convenience to the Poco.

When I look at the Service blues that pop up on ECN photo pages -- I'm pursuaded that the whole country ought to adopt EUSERC standards.



Tesla
WESTUPLACE #209310 03/23/13 12:10 PM
Joined: Feb 2002
Posts: 2,233
H
Member
There is one house in all the towns I inspect that has 3 phase and it was a very old install. The gentleman used to have a small machine shop in his basement. If he took it out now, he would never get it back though. I also believe it was a delta hook up. Not sure, I haven't been in it for nearly 10 years.

WESTUPLACE #209311 03/23/13 12:11 PM
Joined: Feb 2002
Posts: 2,233
H
Member
By the way,

I guess DEX DON'T KNOW!

WESTUPLACE #209319 03/23/13 08:18 PM
Joined: Apr 2002
Posts: 7,297
Likes: 5
Member
Years back I did a resi with 600 amp, 120/208, 3 phase. It was a mansion back then, not Mc; 3 phase loads were AC, and pool pumps. Yes, the POCO had a $$$ for the install and the monthly fees were high, but the owner did not care.

The big issue was 'does the conduit come in any clors, along with the 'big gray box' (CT cabinet)???

THere is one resi in the Twp I work in that has OLD 3 phase, delta, for an extinct machine shop.


John
WESTUPLACE #209321 03/23/13 08:25 PM
Joined: Dec 2000
Posts: 4,289
Member


I clicked on the 'DexKnows' logo at the top of the page, and then on 'About Us'.

Dex One advertises their services as:
"At Dex OneŽ, we offer online and print advertising opportunities"....."We want to help you reach, win, and keep local customers wherever, whenever, and however they look for a business like yours."

So it's an advertising company. And probably not a very good one, at that.


.




Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
HCE727
HCE727
Delaware County, PA, USA
Posts: 187
Joined: November 2005
Top Posters(30 Days)
LarryC 3
Popular Topics(Views)
291,354 Are you busy
223,842 Re: Forum
209,243 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5