DARUSA
Senior Member
- Location
- New York City
Can you have a 277 volt outlet in the residential corridor?
277 volt outlet on a residential
- Thread starter DARUSA
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Buck Parrish
Senior Member
- Location
- NC & IN
They don't make 277 standard outlets that I am aware of.
You can use a commercial outlet, though. Not a 20 amp on a 15 amp circuit though.
You can use a commercial outlet, though. Not a 20 amp on a 15 amp circuit though.
what do you mean by 'standard outlet' vs 'commercial outlet'?
dont know if this is what you were thinking of, but there is a 15 amp 277v duplex receptacle. NEMA 7-15 is the designation for 15amp 277v.
Buck Parrish
Senior Member
- Location
- NC & IN
By standard I mean that it would use normal power. Like in a house.
ceb58
Senior Member
- Location
- Raeford, NC
480v 3ph in a resid. house. That would be interesting:roll:
brother
Senior Member
normal power in residential (house) is usually 120/240 single phase, or 120/208. I'm still little confused about what you are trying to do?? What need to you have for 277??
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Sounds like he wants to use a 277 volt rated receptacle on a 120/240 system.
DARUSA
Senior Member
- Location
- New York City
We have a building project with dual voltage 120/208 and 277/480 volt .The blue prints shows a 277 outlet in the corridor on a residential section of the building.
DARUSA
Senior Member
- Location
- New York City
277 in a residential corridor
277 in a residential corridor
Not only Outlets ,Lights too>
277 in a residential corridor
Not only Outlets ,Lights too>
brother
Senior Member
Have you read NEC 2008 210.6(A) Occupancy Limitation. It's my understanding that 'dwelling units' aka residential cannot have cord and plug or luminaires connected loads in excess of 120 volts.
DARUSA
Senior Member
- Location
- New York City
Have you read NEC 2008 210.6(A) Occupancy Limitation. It's my understanding that 'dwelling units' aka residential cannot have cord and plug or luminaires connected loads in excess of 120 volts.
210.6 Branch-Circuit Voltage Limitations.
The nominal voltage of branch circuits shall not exceed the values permitted by 210.6(A) through (E).
(A) Occupancy Limitation. In dwelling units and guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed 120 volts, nominal, between conductors that supply the terminals of the following: See related Staff Note
(1) Luminaires
(2) Cord-and-plug-connected loads 1440 volt-amperes, nominal, or less or less than ? hp
Does it include corridors?
brother
Senior Member
The question to ask is the 'corridor' part of the residential section, or is part of the commercial section?? Will the tenants/persons from the residential be using this?? If it's part of the residential section or if the tenants(that live in the residential section for their purposes) are using it, then I say its a code violation. What do your prints show again?
DARUSA
Senior Member
- Location
- New York City
Yes the corridor is on the residential section!!!
No, it does not include corridors, hallways and such that are external to the respective unit, room, or suite.
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DARUSA
Senior Member
- Location
- New York City
What about 210.6 C Does it allow the installation?
Has nothing to do with the corridor being in a residential or commercial "section". For instance, in a hotel, the entire building is commercial.
What matters is to whom it is accessible. If accessible by residents or guests of more than one dwelling unit, guest room or suite, or by the general public, the requirement is relinquished.
brother
Senior Member
I'm sorry I have to disagree. If the 'corridor' is part of the residential section aka 'dwelling unit' then it is including. To me a corridor is just another name for a hallway. We don't break up 'dwelling unit/residential buildings to exclude hallways/corridors. The term 'dwelling unit' is all encompasing of hallways/corridors,sleeping, eating etc..
To install that 277 outlet in the residential section is a code violation. And no, (C) does not give any exception for doing this in dwelling unit.
Buck Parrish
Senior Member
- Location
- NC & IN
Just curious, does the panel schedule say what it is being used for?
Is it a standard outlet symbol?
Is it a standard outlet symbol?
DARUSA
Senior Member
- Location
- New York City
The corridor is accecible for more than 25 dwelling units!!!
No... if the receptacle is general purpose. The recept' has to be for permanently installed equipment.
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