XOKO
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An electrician told me that only 3 wires are now permitted when wiring a DR - P, N & G. If true, what is the code section that states this?
An electrician told me that only 3 wires are now permitted when wiring a DR - P, N & G. If true, what is the code section that states this?
An electrician told me that only 3 wires are now permitted when wiring a DR - P, N & G. If true, what is the code section that states this?
An electrician told me that only 3 wires are now permitted when wiring a DR - P, N & G. If true, what is the code section that states this?
He is correct. 110.3(B). A single can only have 3.
3 on a duplex 1-g, 1 (pair) N, 1 (pair) P.
Now if you are 'looping' wires all the rules change!:angel:
He is correct. 110.3(B). A single can only have 3. ...
Tri-drive steel terminal screws. Internal screw pressure-plate back and side wire capability.
Two back wire holes for more wiring flexibility.
... Curious as to why you said P, N and G? Positive, negative and ground?
Welcome to the Forum.
That would depend on the design of the receptacle. Some back wired singles have space for two grounded conductors and two ungrounded conductors.
The following is from the spec sheet for a P&S 8301-I
Agreed if there are three cables. When just 2 cables I use the device.I prefer to pigtail mine. That way there a less wires to deal with on the device itself.
The P&S 8301-I is a single receptacle. I thought we were discussing duplex receptacles (DR)...???That would depend on the design of the receptacle. Some back wired singles have space for two grounded conductors and two ungrounded conductors.
The following is from the spec sheet for a P&S 8301-I
The post I responded to specified a single receptacle.The P&S 8301-I is a single receptacle. I thought we were discussing duplex receptacles (DR)...???
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He is correct. 110.3(B). A single can only have 3.
I occassionally go back to work to help out a friend (Licensed). While he saw me wiring a std duplex receptacle w/ NM in and out, he said that since the 2008 code was adopted (NY) you can only put 1 black (P), 1 white (N) and 1 green (G) on the device and that in the future he wanted pigtails. Doesn't make sense when manufacturers still produce screws and backwire connections. Maybe he just meant the white wire only so as not to break the neutral in the downstream circuit if changing the device. Just wanted to ask for some opinions before I challenge the wisdom of the guy who signs my checks.
I see :slaphead:The post I responded to specified a single receptacle.
I don't think the screws are long enough to allow two in the holes and one wrapped.You mean you can't put one wire in each of the holes on the back and another one wrapped around the screw?
Then why does the UL Guide Information for Receptacles for Plugs and Attachment Plugs (RTRT) say this:...Each and every connection point is examined by UL for things like pull-out stregth and wire capacity. Every device is tested as a complete device, wired in the 'ordinary' way. And, yet ...
When asked, UL accurately replied that they've never evaluated any device for use with more than one set of wires. By thier reasoning, they 'just don't know' if it's OK to connect more than three wires to a receptacle - the long-standing practice of split receptacles notwithstanding.
Frankly, I expect they never saw a need. Apart from the obvious 'why on earth would anyone want to hook up 13 wires?' question, there's the simple fact that every termination point is independent of the others. There's also the riddle of how to treat the 'looped' wire.
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Single and duplex receptacles rated 15 and 20 A that are provided with more than one set of terminals for the connection of line and neutral conductors have been investigated to feed branch-circuit conductors connected to other outlets on a multi-outlet branch circuit, as follows:
Single and duplex receptacles rated 15 and 20 A that are provided with more than one set of terminals for the connection of line and neutral conductors have not been investigated to feed branch-circuit conductors connected to other outlets on a multi-outlet branch circuit, as follows:
- Back-wire (screw-actuated clamp type) terminations with multiple wire-access holes used concurrently to terminate more than one conductor
- Side-wire (binding screw) terminals used concurrently with their respective push-in (screwless) terminations to terminate more than one conductor
- Side-wire (binding screw) terminal with its associated back-wire (screw-actuated clamp type) terminal
- Multiple conductors under a single binding screw
- Multiple conductors in a single back-wire hole