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#98322 05/28/06 06:26 PM
Joined: Jan 2004
Posts: 1,507
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I wrote a violation last week to a contractor who had installed a duplex receptacle on a wall and it had a nub in between the two blades of the receptacle that prevented one from pluging in anything but a special cap with a recess that would straddle the nub on the receptacle. For me this does not satisfy the code for a general purpose receptacle required by 210.52 NEC. He ended up installing a duplex receptacle with half of it with the nub and half of it without the nub. He then split wired the receptacle so he could control half of it with the home automation system and the other half would serve the wall space as a general receptacle. Was I wrong?


George Little
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#98323 05/28/06 06:37 PM
Joined: Feb 2005
Posts: 693
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George, that's a good question. Is there anything in the NEC that specifies the receptacle configuration?

I see 125v, 15- and 20-amp receptacles, but nothing that prohibits, say, a twist-lock. The nub is to reject the insertion of a non-dimmable load.


Larry Fine
Fine Electric Co.
fineelectricco.com
#98324 05/28/06 06:38 PM
Joined: Feb 2005
Posts: 693
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Member
oops

[This message has been edited by Larry Fine (edited 05-28-2006).]


Larry Fine
Fine Electric Co.
fineelectricco.com
#98325 05/28/06 06:52 PM
Joined: Oct 2005
Posts: 141
L
Member
I'm not an inspector but agree with you. How can the receptacle satisfy the requirement of a general purpose receptacle when it is a special receptacle that will only take a certain cord?

#98326 05/29/06 02:00 AM
Joined: Jul 2004
Posts: 625
S
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It seems to me that a dimmer-controlled receptacle (I'm making that leap that the receptacle is dimmer-controlled, because that is the purpose of those particular receptacles) does not meet the G.P. receptacle requirements of 210.52.

#98327 05/29/06 03:28 AM
Joined: May 2003
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e57 Offline
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Funny I brought up the same thing with someone doing the exactly same about the same time. Otherwise, it doesnt cover spacing for general use.


Mark Heller
"Well - I oughta....." -Jackie Gleason
#98328 05/29/06 03:36 PM
Joined: Feb 2005
Posts: 693
L
Member
Okay, I'll play devil's advocate here.

Where does the NEC specify that a required receptacle be only a straight-blade or "non-nubbed" type, or must or must not be of any particular configuration?

[This message has been edited by Larry Fine (edited 05-29-2006).]


Larry Fine
Fine Electric Co.
fineelectricco.com
#98329 05/29/06 03:57 PM
Joined: Jan 2003
Posts: 4,391
I
Moderator
Quote
Okay, I'll play devil's advocate here.

Cool, someone has to. [Linked Image]

Quote
Where does the NEC specify that a required receptacle be only a straight-blade or "non-nubbed" type, or must or must not be of any particular configuration?

It does not, but it does require we use 15 or 20 amp 125 volt receptacles.

While a locking receptacle can meet this I bet the 'special purpose' receptacle is rated less than 15 amps.

Even if the receptacle is rated 15 or 20 amps I would also bet the circuit supplying it is not.

I doubt the home automation equipment uses an 1800 watt or larger dimmer for a table lamp. [Linked Image]


Bob Badger
Construction & Maintenance Electrician
Massachusetts
#98330 05/29/06 09:29 PM
Joined: Feb 2005
Posts: 693
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Remember, Bob, standard dimmers are rated at only 600 watts, and do not require OC protection at this (5a) level.


Larry Fine
Fine Electric Co.
fineelectricco.com
#98331 05/29/06 09:43 PM
Joined: Jan 2003
Posts: 4,391
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Moderator
I agree Larry but there is no requirement for 15 or 20 amp lighting outlets.

There is a requirement for a 15 or 20 amp receptacle circuit. [Linked Image]


Bob Badger
Construction & Maintenance Electrician
Massachusetts
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