Are receptacles listed as an identified splicing device?

[mbrooke]

Where does it say receptacles are splicing devices meeting the requirements of 110.14 (B)? As I'm reading it every feed through would be none compliant.

 

[480sparky]

110.14(B)Splices. Conductors shall be spliced or joined with splicing devices identified for the use

Art. 100 Definitions: Device. A unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function.

It would then go to the listing of the device.

 

[mbrooke]

110.14(B)Splices. Conductors shall be spliced or joined with splicing devices identified for the use

Art. 100 Definitions: Device. A unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function.

It would then go to the listing of the device.

So the device itself doesn't need a listing in that regard?

 

[480sparky]

So the device itself doesn't need a listing in that regard?

I'd think it would. And if the instruction show you can use the two terminals to 'splice' two conductors, then I'd say it's listed for the use.

 

[zbang]

Taking your standard duplex receptacle-
(a) it doesn't splice two wires; might look like it does, but that's not the device's function (as opposed to a wire nut).
(b) has two pair of screws connected together and is UL listed. Does it connect the "in" and "out" leads? Yes. Is that a splice? I'd say no. (Does the listing say you can't daisy-chain them? Probably not.)

Since the NEC doesn't define splice, I go to the dictionary- "join (pieces of timber, film, or tape) at the ends. " or "join or connect (a rope or ropes) by interweaving the strands" (which doesn't seem to apply).

Or one could take the view of "looks like it's listed for the use and I'm not upsetting this apple cart."

 

[roger]

The UL White Book says they are.

Single and duplex receptacles rated 15 A and 20 A that are provided with more than one set of terminals for the connection of line and neutral conductors may be used to feed a single set of branch circuit conductors connected to other receptacles on a multi-outlet branch circuit. These devices have not been tested for tapping off more than one circuit from the receptacle by utilizing both the side-wiring and back-wiring terminals on an outlet. Duplex receptacles rated 15 A and 20 A that are provided with break off tabs may have those tabs removed so that the two receptacles may be wired in a multi-wire branch circuit

Roger

 

[romex jockey]

I'm reading a strong 'pigtail' advocacy into this thread.........~RJ~

 

[480sparky]

If the two screws on a device aren't acceptable, then how is a neutral bar acceptable?

 

[RD35]

300.13(B)

 

[480sparky]

300.13(B)

Only applies to MWBCs.

 

[mbrooke]

The UL White Book says they are.



Roger

I think this clears it up?

 

[ramsy]

It appears wrapping a single conductor around a terminal, after carefully removing insulation in the middle, is the only legal way to get more than one wire on a terminal.

Is there a more recent PDF. My White Book copy is dated.

2015-16 GUIDE INFORMATION FOR ELECTRICAL EQUIPMENT — THE WHITE BOOK

RECEPTACLES FOR PLUGS AND ATTACHMENT PLUGS (RTRT)

GENERAL
This category covers general-use receptacles for use in wiring systems recognized by ANSI/NFPA 70, ‘‘National Electrical Code’’ (NEC), and outlets
for use in appliances and fixtures. It also covers some attachment plugs, male inlets, and cord connectors with nonstandard slot or blade configurations
which are part of a line of wiring devices including receptacles...

TERMINALS
"..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:
-.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.

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:
-.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...

UL MARK
The Certification Mark of UL on the product, or the UL symbol on the product and the Certification Mark on the smallest unit container in which
the product is packaged is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The
Certification Mark for these products includes the UL symbol, the words ‘‘CERTIFIED’’ and ‘‘SAFETY,’’ the geographic identifier(s), and a file number.
Receptacles additionally investigated to Federal Specification W-C-596 are identified by the capital letters ‘‘F’’ and ‘‘S,’’ each in a wing on either side of
the UL symbol. The Federal Specification number ‘‘W-C-596F’’ or ‘‘W-C596G,’’ or the Federal Specification part number (which consists of the
appropriate specification sheet and dash number described in the specification) may also be included on the product or on the smallest container in
which the product is packaged."

 

[480sparky]

It appears wrapping a single conductor around a terminal, after carefully removing insulation in the middle, is the only legal way to get more than one wire on a terminal..........

If you're wrapping the wire under the screw, yes.

If it's a pressure-plate terminal, it might be listed for two conductors.

 

[ramsy]

If you're wrapping the wire under the screw, yes.

If it's a pressure-plate terminal, it might be listed for two conductors.

You mean, if you're wrapping the wire under the "-.Back-wire (screw-actuated clamp type) terminations with multiple wire-access holes..", yes.

But not for "-.Multiple conductors under a single binding screw."

You people should really buy me a more recent copy of the White Book

 

[sameguy]

Years ago I did a remodel where the customer wouldn't pay for a full rewiring, so I use al/cu rated recepts to "splice" old aluminum to new copper; each wire had a term point.