The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
Yesterday at 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 14
HotLine1 10
Trumpy 8
Texas_Ranger 8
sparkyinak 7
Who's Online
0 registered (), 82 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#18104 - 12/05/02 08:21 PM Need advice
electrical dummy Offline
Junior Member

Registered: 12/05/02
Posts: 6
I bought an older house/cottage which has 2-wire service from the utility pole. My panel is a Cutler-Hammer model which has 2 60-amp breakers (connected with a bar) as the main disconnect. There is also a 240v electric range wired to the panel.
How is this possible? I have read that 2-wire service only allows for 120v service. The range is connected as follows: a red and a black wire connected to a twin breaker (looks just like the main disconnect), and a white neutral connected to the neutral bus.
What kind of service do I have? 60A or 120A? 120V or 240V?
Thanks

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#18105 - 12/05/02 08:27 PM Re: Need advice
Wirenuttt Offline
Member

Registered: 11/10/02
Posts: 267
Loc: Massachusetts
I beleive your right without looking at it. You have an old 120 volt system which originally was probably a 30 amp service. Whoever tied those 240 volt appliances in, cheated. I highly recommend that you replace this to at least a 100 amp service which includes a grounding system. I'm surprised the home inspector didn't notice this. If you don't have the majority of your major appliances on gas u may want to consider 200 amp service. Hope this helps

Top
#18106 - 12/05/02 08:33 PM Re: Need advice
caselec Offline
Member

Registered: 04/14/02
Posts: 557
Loc: San Jose, CA
Are there 2 insulated wires and 1 bare wire feeding your house? Or 1 insulated wire and 1 bare wire?
_________________________
Curt Swartz

Top
#18107 - 12/05/02 08:40 PM Re: Need advice
electrical dummy Offline
Junior Member

Registered: 12/05/02
Posts: 6
There are 2 insulated wires and 1 uninsulated wire. I assumed that the uninsulated wire is only there to provide physical support to the insulated ones. Is this actually a neutral, and I have 3-wire service?

Top
#18108 - 12/05/02 08:49 PM Re: Need advice
sparky66wv Offline
Member

Registered: 11/17/00
Posts: 2339
Loc: West Virginia

Yes, the bare cable is indeed the grounded conductor or "neutral".

You have a 120/240V service.





Didn't mean to barge in when it suddenly became an easy answer!
_________________________
-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI

Top
#18109 - 12/05/02 08:54 PM Re: Need advice
electrical dummy Offline
Junior Member

Registered: 12/05/02
Posts: 6
Cool.
Is it 120 amp service then, based on the main disconnect as I described above?

Top
#18110 - 12/05/02 09:34 PM Re: Need advice
sparky66wv Offline
Member

Registered: 11/17/00
Posts: 2339
Loc: West Virginia
No, most definitely a 60A, the current remains consistant, unless there are 2 double pole breakers tied together, a la GE 200A, but it would be plainly marked at the correct current rating.

I agree with the above posts that an upgrade to 200A should be considered.

[This message has been edited by sparky66wv (edited 12-06-2002).]
_________________________
-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals