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Old 08-18-2012, 11:32 AM   #1
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Replacing outlets...What is this device? Photo inside.


Hi everyone...I'm a new homeowner in an old home. The wiring is bx, 2 wire...where the BX is grounded to the metal box.

I'm replacing all the outlets with tamper resistant ones (most are also testing open ground or reverse polarity)...and I opened one of the boxes (one of the few which happens to test OK) and found the wiring goes into an orange device, which then has new black and white wires going to the outlet.

What are these devices, and what are they used for? I've attached a photo of the setup...


Thanks!
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Replacing outlets...What is this device? Photo inside.-photo.jpg  

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Old 08-18-2012, 11:57 AM   #2
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Replacing outlets...What is this device? Photo inside.


Looks like an ideal push-in wire connector. Performs the same task as a wirenut.

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Old 08-18-2012, 12:15 PM   #3
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Replacing outlets...What is this device? Photo inside.


Aha...You're right...!
Out of curiosity, is a wirenut required on all outlets? Or can I simply attach the wires directly to the new outlet receptacles. The rest of the house doesn't have them, but then again, the rest of the house is testing open ground and reverse polarity.
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Old 08-18-2012, 12:17 PM   #4
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Replacing outlets...What is this device? Photo inside.


Those wires are too short to reach the receptacle, that is why leads were added.
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Old 08-18-2012, 12:18 PM   #5
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Replacing outlets...What is this device? Photo inside.


It looks like somebody put those pigtails in there because the existing wire was too short. I would probably just leave them there, and hook up the new receptacle. I don't see a ground in that box. Is there a ground in the existing cable?
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Old 08-18-2012, 12:34 PM   #6
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Replacing outlets...What is this device? Photo inside.


It's an old home, so the BX acts as the ground when it clamps onto the metal box. Or so, this is my understanding.
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Old 08-18-2012, 04:28 PM   #7
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Replacing outlets...What is this device? Photo inside.


Quote:
Originally Posted by number419 View Post
It's an old home, so the BX acts as the ground when it clamps onto the metal box. Or so, this is my understanding.

Only if you use a grounding type receptacle, the one you show is not. You need to run a strap from the receptacle ground screw to the box, if in fact the box has an acceptable ground.

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