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Old 08-05-2012, 07:25 AM   #31
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Grounding question


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Originally Posted by darren View Post
The surface mount box inside a wall gave that away to me.
Since when is a 1900 box specifically a surface mount box?
Have you never used a side-strap 1900?

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Old 08-05-2012, 07:48 AM   #32
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Grounding question


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Originally Posted by Michael Thomas View Post
No bushings are required on MC cable, but... it looks to me like there is a paper interior wrap around the conductors (the brown area) visible where they exit the connector, which would make that AC not MC (at least based on the materials I encounter).
I never said the original picture was MC. It is clearly AC, the bonding strip is visible at the connector, ad the red head may or may not be visible in such an installation. What I said was that your picture is showing MC not AC.
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Old 08-05-2012, 07:51 AM   #33
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Grounding question


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Originally Posted by darren View Post
The surface mount box inside a wall gave that away to me.
Looks like a mud ring on a 4 square to me.
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Old 08-05-2012, 08:32 AM   #34
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Grounding question


Quote:
Originally Posted by Michael Thomas View Post
I don't see an anti-short bushing:

in that last picture:



which suggests that this may have been an unpermitted, uninspected DYI wiring job.

If so, there may not be an appropriate, uninterrupted low-impedance ground path to all the outlet boxes.

Here is a picture of that same box... but the left side.



I see a anti-short. so, im guessing the job was done by a competent electrician.
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Old 08-05-2012, 09:04 AM   #35
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Grounding question


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Originally Posted by Speedy Petey View Post
Since when is a 1900 box specifically a surface mount box?
Have you never used a side-strap 1900?

Nope did not know they made them, may be a US thing or something I have not seen yet.

The only time I have used those boxes(which are called 1110's where I am from, got love how everybody has different names for the same thing) were for surface work.
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Old 08-05-2012, 09:06 AM   #36
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Grounding question


Quote:
Originally Posted by darren View Post
Nope did not know they made them, may be a US thing or something I have not seen yet.

The only time I have used those boxes(which are called 1110's where I am from, got love how everybody has different names for the same thing) were for surface work.
So what box do you use for MC/AC, EMT, RMC, PVC, type wiring on the interior of walls?
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Old 08-05-2012, 10:24 AM   #37
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Grounding question


Quote:
Originally Posted by darren

The surface mount box inside a wall gave that away to me.
Looks more like a 4 inch square with single gang plaster ring to me.

Edit: already been said, didn't notice page two.
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Old 08-05-2012, 10:28 AM   #38
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Grounding question


Quote:
Originally Posted by darren

Nope did not know they made them, may be a US thing or something I have not seen yet.

The only time I have used those boxes(which are called 1110's where I am from, got love how everybody has different names for the same thing) were for surface work.
It's not an 1110, that's a utility box, its a 4inch square with plaster ring and they make em every day here. Side strap as well. I think your confusion stems from the fact you think its the wrong box.
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Old 08-05-2012, 10:30 AM   #39
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Grounding question


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Originally Posted by stickboy1375

So what box do you use for MC/AC, EMT, RMC, PVC, type wiring on the interior of walls?
We don't have metallic sheath cable without bare ground wire so we just call it all bx. Some has an insulated ground for isolated ground installs. As for boxes we use the same type you do just call them different names.

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