wiring 2 duplex receptacles

[reyamkram]

The first picture is the way I was taught to wire receptacles, the second picture is what I found, when removing some electrical work,
What is any ones opinion on this. What I understand is it is a violation of 110. 2 wire under one connection, and it has a big possibility of wires coming loss
from the ring terminals.
Thank you, for any and all information.

 

[Dsg319]

The first picture is the way I was taught to wire receptacles, the second picture is what I found, when removing some electrical work,
What is any ones opinion on this. What I understand is it is a violation of 110. 2 wire under one connection, and it has a big possibility of wires coming loss
from the ring terminals.
Thank you, for any and all information.
View attachment 2560607 View attachment 2560608

Technically yes I believe the second photo is a violation. (Although I’ve been guilty myself of putting two #12s in the same fork in different scenarios).

As far as how you were taught, some guys do with no worry and others prefer to pig tail. I do both depending on the situation.

 

[garbo]

Have used the first picture for years. Believe the second picture would be a violation because I never saw what I still call stakons approved for more then one conductor. Usually if it does not state a use on box or cartoon it is not allowed.

 

[Sea Nile]

It looks like the second picture doesn't have a ground wire attached to the left receptacle. I realize the strap would probably provide an effective ground fault path when installed with 32 thread fasteners, but I don't like not putting a ground wire on every provided grounding terminal.

 

[ActionDave]

It looks like the second picture doesn't have a ground wire attached to the left receptacle. I realize the strap would probably provide an effective ground fault path when installed with 32 thread fasteners, but I don't like not putting a ground wire on every provided grounding terminal.

I've replaced a ton of burnt up recepts and never once was the ground terminal the one that was damaged, it was always on the hot or neutral. Save the strength in your hands and put the extra effort and attention on the connections that are carrying the load day in and day out. That steel cover and steel screws and steel nuts are going to handle any fault current that may occur just fine.

 

[ramsy]

Been stocking some devices w/ 8-wire slots to avoid both fork terminals & wirenuts, except for 300.13(B), since UL-tested receptacles take more heat than wirenuts.

 

[kwired]

I've replaced a ton of burnt up recepts and never once was the ground terminal the one that was damaged, it was always on the hot or neutral. Save the strength in your hands and put the extra effort and attention on the connections that are carrying the load day in and day out. That steel cover and steel screws and steel nuts are going to handle any fault current that may occur just fine.

Agree, my installs don't every have an EGC pigtailed to the receptacles in that situation, and often don't even have a green in the conduits entering the box if they are metallic. That said OP's devices are not properly bolted to the cover, unless maybe the device is listed for support by the center screw? That issue seemed to go away years ago for me anyway, I always use the two end mounting holes vs the center hole on receptacles anymore.

 

[Sea Nile]

I've replaced a ton of burnt up recepts and never once was the ground terminal the one that was damaged, it was always on the hot or neutral. Save the strength in your hands and put the extra effort and attention on the connections that are carrying the load day in and day out. That steel cover and steel screws and steel nuts are going to handle any fault current that may occur just fine.

Of course, I wasn't suggesting that the reason for a ground wire was to prevent burning up a receptacle. For the record, I agree with everything you said, I'm just confused about why it's relevant to what I said.

 

[kwired]

Of course, I wasn't suggesting that the reason for a ground wire was to prevent burning up a receptacle. For the record, I agree with everything you said, I'm just confused about why it's relevant to what I said.

If everything done properly this application doesn't need a ground wire to the receptacle itself is sort of what I believe the point was, that is how I see it anyway.

 

[Sea Nile]

If everything done properly this application doesn't need a ground wire to the receptacle itself is sort of what I believe the point was, that is how I see it anyway.

Sure I agree with that,. But correct me if Im wrong, a burnt device or burnt wire nut is virtually in all cases, a loose or bad connection on the current carrying conductors, not the ground conductor. Also, I was expressing a personal preference to always put a ground wire on a ground terminal while also acknowledging that it is probably not needed with fasteners that have 32 threads per inch bonding the yoke.

 

[don_resqcapt19]

Some crimp on terminals are listed for more than one conductor. You have to look to the details.

However there is only one model of one brand where the receptacle terminals have been evaluated for use with spade connectors.

 

[kwired]

Sure I agree with that,. But correct me if Im wrong, a burnt device or burnt wire nut is virtually in all cases, a loose or bad connection on the current carrying conductors, not the ground conductor. Also, I was expressing a personal preference to always put a ground wire on a ground terminal while also acknowledging that it is probably not needed with fasteners that have 32 threads per inch bonding the yoke.

I will agree severe burning happens at the current carrying terminations and almost never at EGC terminations. EGC terminations including locknuts on raceways/fittings or even bolt on hubs that are not secure enough are more likely to show signs of more limited arcing, if they have ever been depended upon to carry any fault current.

 

[ActionDave]

Sure I agree with that,. But correct me if Im wrong, a burnt device or burnt wire nut is virtually in all cases, a loose or bad connection on the current carrying conductors, not the ground conductor. Also, I was expressing a personal preference to always put a ground wire on a ground terminal while also acknowledging that it is probably not needed with fasteners that have 32 threads per inch bonding the yoke.

There is nothing wrong with putting an extra wire on a ground terminal but it does nothing to make the install safer. I was only commenting on the extra attention that the ground wire always gets when equal attention should be given to all the connections. Like kwired said you don't even need a ground wire a lot of the time.

 

[tom baker]

With the crush cover shown, 6-32 machine screws and kep nuts, no bonding jumper is required to box. But, if later the recp is replaced and only attached with the yoke, now the bonding path is lost

 

[kwired]

With the crush cover shown, 6-32 machine screws and kep nuts, no bonding jumper is required to box. But, if later the recp is replaced and only attached with the yoke, now the bonding path is lost

Please clarify, it is only attached with the yoke as is now??

 

[guschash]

It looks like the second picture doesn't have a ground wire attached to the left receptacle. I realize the strap would probably provide an effective ground fault path when installed with 32 thread fasteners, but I don't like not putting a ground wire on every provided grounding terminal.

doesn't need ground wires, it's raised cover. Receptacle are self grounding.

 

[don_resqcapt19]

doesn't need ground wires, it's raised cover. Receptacle are self grounding.

The self grounding does not enter into the EGC connection where a receptacle is installed in a raised cover. It is the direct metal to metal contact between the yoke and the cover combined with the direct metal to metal contact between the cover and the box. Note that this only applies to the raised covers that have the depressed flat corners.

 

[ramsy]

The self grounding does not enter into the EGC connection where a receptacle is installed in a raised cover. It is the direct metal to metal contact between the yoke and the cover combined with the direct metal to metal contact between the cover and the box. Note that this only applies to the raised covers that have the depressed flat corners.

Found this elaborated at 250.146(A)

 

[roger]

A little off topic and on the verge of the unspeakable, installing multiple gang receptacles is one place I do ground up / ground down to keep hot/neutral terminals from being side by side. I know it doesn't really matter but just something I have always done

 

[ramsy]

Unless inspectors want quadruplex receptacles with ground prongs facing up, I avoid electrical tape with 1 facing up & 1 down, so that exposed terminals face each other with the same potential or polarity.