Burnt Receptacle...

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Does the ground have to be too?
of course the grounds have to be pigtailed. That should go without explanation. There is only 1 ground screw on devices and you can't wrap 2 or more ground wires around 1 screw. This would go for all applications whether or not it is a MWBC doesn't matter.
 
Yes, # 12 NM, backed by a 20 amp breaker, no backstabbing, newer install in an old farm style house.

Could you tell if the work was amateur vs. professional? (Obviously this kind of thing doesn't automatically render it an amateur mistake unless it happened to be installed by a perfect robot receptacle installer. ;))
 
15amp receps on a 20amp circuit is pretty common. Probably the standard. Also legal. What is your problem with it?

myself i don't like it. yes it's legal 210.21.b.3 says so.but if i'm installing a 20amp cb with #12 wire i'm also installing a 20 receptacles too...but thats me.in this case it was said a electric space heater was installed that night(down stream) from the burnt outlet but was feeding thru that recept.loose connection more then likely cause the problem but here something to think about.that space heater.most are 1500 watts/120v=12.5 amps, so the max cord & plug connected load per 210.21.b.2 is 12 amps. to me thats a violation..but i'm sure your fire ins co will pick that one up.same with a 15 amp cb=12 amps. but if you was installing a 20 amp recepts that would not be a problem..just something to think about. the ho was very very lucky. btw...merry christmas to all.
 
myself i don't like it. yes it's legal 210.21.b.3 says so.but if i'm installing a 20amp cb with #12 wire i'm also installing a 20 receptacles too...but thats me.

The inside of a 15 amp receptacle is identical to the inside of a 20 amp receptacle of the same brand and grade.

The current carrying parts are in fact rated 20 amps for feed through. This is the reason why the NEC allows using 15 amp receptacles on 20 amp circuits.

The only difference is the slot on the face so it will accept a 20 amp plug ........... and the price.
 
read the thread a little closer to find out that this wasn't a backstabbed connection. Also it is legal to use a 15 amp recep on 20 amp circuit.


i never said this receptacle was backstabbed.i was just stating that that you can't backstab a 15 amp receptacle with a # 12 wire.and yes i know it's legal to use 15 amp recepts on a 20amp circuit.210.21.b.3 says so...have a merry xmas :D
 
The inside of a 15 amp receptacle is identical to the inside of a 20 amp receptacle of the same brand and grade.

The current carrying parts are in fact rated 20 amps for feed through. This is the reason why the NEC allows using 15 amp receptacles on 20 amp circuits.

The only difference is the slot on the face so it will accept a 20 amp plug ........... and the price.

yes you are right.the insides guts are the same on 15/20 receptacles i even looked it up last night just to check it out myself and i found it on a old mike holt thread years ago.but i was saying about the code 210.21.b.2 for that 1500 watt space heater on that 15 amp receptacle.12 amps max, btw merry xmas:smile:
 
Could you tell if the work was amateur vs. professional? (Obviously this kind of thing doesn't automatically render it an amateur mistake unless it happened to be installed by a perfect robot receptacle installer. ;))

The thing is, if you think about it, it's more likely that more mistakes will be made by professionals than amatures, but that simply has to do with the sheer volume of work that will be done by professionals, more work=more chances to make a mistake(s).

I think you may be on to something with that robot receptale installer.:grin:
 
.but i was saying about the code 210.21.b.2 for that 1500 watt space heater on that 15 amp receptacle.12 amps max

Any listed aplliance that has a 15 amp 'plug' can used with a 15 amp receptacle without fear of overload. If the unit needs a 20 amp circuit it will come with a 20 amp cord cap.

When was the last time you saw a home appliance with a 20 amp 120 volt plug? :smile:

IMO between UL and the NEC all the bases are covered, you do not have to feel you are doing anything wrong using 15 amp duplex receptacles on 20 amp circuits.

But ..... to each their own and have a great Christmas as well. :cool:
 
The thing is, if you think about it, it's more likely that more mistakes will be made by professionals than amatures, but that simply has to do with the sheer volume of work that will be done by professionals, more work=more chances to make a mistake(s).

That is an excellent point.



I think you may be on to something with that robot receptale installer.:grin:


Give it time....I'm working on it. :D
 
Crazy pics. I have never seen a recep burned quite that bad. I was impressed by the plastic box, doing it's job by containing the fire.
 
Could you tell if the work was amateur vs. professional? (Obviously this kind of thing doesn't automatically render it an amateur mistake unless it happened to be installed by a perfect robot receptacle installer. ;))

The damage was to severe to tell anything, all I ended up with was a bunch of bare copper conductors, could not tell a EGC from a ungrounded conductor. let alone tell if the screws were actually fully tightened.
 
How can you agree with Marc if you don't post a question inclcuding a megger??????? When a baby is born in the breach position, Marc just says stick a megger on it.

You want to argue that?????:D:D:D
 
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