"bob haller" wrote in message
...
On Mar 22, 5:04 pm, "RBM" wrote:
"bob haller" wrote in message

...
On Mar 22, 4:48 pm, "RBM" wrote:





"Mikepier" wrote in message

...

*MC seems to be replacing BX and MC lite is very nice to carry and
pull
compared to steel. One of the local supply companies that I deal with
only
stocks MC. You can use MC cable, however the armor may not be an
approved
grounding conductor. So you would need to install the ground bar for
that.

Ok, so heres my next question. I saw ground buss bars at HD. How do
you mount these inside the boxes?
I don't see any holes in the panels that line up, it looks like I
need to drill 2 holes and install nuts and bolts.
Is there a method of doing this?

**You can drill and tap or use bolts. Scrape the paint off first

Is a condo application with a seperate meter room........

Is the main really a main? or should the grounds be isolated from the
neutral like a sub panel is

The new main panel should be mounted to wood, and if thats the case
wood screws can attach the bus bar to the cabinet, screing thru to the
wood

** The new panel is a sub panel. It will probably be mounted to 2x4's on
each side. The grounding buss bar ABSOLUTELY CANNOT be mounted with wood
screws, screwed through the box.
You know Haller, even a broken clock is correct twice a day, I'm not so
sure
bout you- Hide quoted text -

- Show quoted text -

Well I added a buss bar to a existing main, used wood screws to mount
it thru the bar into the plywood mount board.Ran copper line to
existing buss bar, so it was properly connected

It passed middle states inspection, in the process of a home sale/

the idiot home inspector wrote up the main because although it had the
inspection sticker the signature was no longer legible, the ink had
faded.you could still see it had been signed

Now how would anyone add a buss bar to a existing panel, unless you
were willing to disconnect everything, remove the box and use machine
screws and nuts...

** First of all, this is a new sub panel, which has no existing grounding
bar to connect to. There is only a neutral buss. You can install the bar by
drilling and taping. We do it all the time

*MC seems to be replacing BX and MC lite is very nice to carry and pull
compared to steel. One of the local supply companies that I deal with only
stocks MC. You can use MC cable, however the armor may not be an approved
grounding conductor. So you would need to install the ground bar for that.

Ok, so heres my next question. I saw ground buss bars at HD. How do
you mount these inside the boxes?
I don't see any holes in the panels that line up, it looks like I
need to drill 2 holes and install nuts and bolts.
Is there a method of doing this?


*Like RBM said, you may have to drill and tap some holes. Most panels come
with predrilled holes that just need tapping with an 8/32 tap. However
unless you get the ground bar specifically for your panel (There is usually
a part number on the inside label) you will have to drill out the ground bar
or drill a hole or two in the panel. You cannot use bolts with nuts without
tapped holes. It is important for a good ground connection to have fine
threads screwed into the box. Sheet metal screws and self drilling Tek
screws are not acceptable and neither is wood screws.

"John Grabowski" wrote in message
...

You cannot use bolts with nuts without tapped holes.

If you have less than 2 threads in the tapping, you must use nuts (250.8-5)

You cannot use bolts with nuts without tapped holes.

If you have less than 2 threads in the tapping, you must use nuts
(250.8-5)


*Thanks for the clarification Roy.

I want to thank everyone for your inputs. I was at Lowes again and
happen to stumble across a Square D Homeline value pack HOM1224L125VP
12/24 that come with 2-20A breakers and a factory installed ground
bar. Whats wierd is Lowes doesn't show this on their website, nor does
Squared D have this in the catalog. When I e-mailed Squared-D this is
the reply I got within 5 minutes.

"Thank you for your recent internet inquiry.

The HOM1224L125VP consists of a HOM1224L125TC -125Amp 12 space/24
circuit factory installed main lug load center with equipment ground
bar kit, and
(2) HOM120 Homeline 20 Amp single pole circuit breakers.

The HOM1224L125TC is available separately, and the -T in the -TC
suffix is for a factory installed ground bar"

So it looks like I found the panel I'm looking for. Just goes to show
sometimes you have to go to the store and look more closely as some
companies manufacture product exclusivly for Lowes or HD.

I want to thank everyone for your inputs. I was at Lowes again and
happen to stumble across a Square D Homeline value pack HOM1224L125VP
12/24 that come with 2-20A breakers and a factory installed ground
bar. Whats wierd is Lowes doesn't show this on their website, nor does
Squared D have this in the catalog. When I e-mailed Squared-D this is
the reply I got within 5 minutes.

"Thank you for your recent internet inquiry.

The HOM1224L125VP consists of a HOM1224L125TC -125Amp 12 space/24
circuit factory installed main lug load center with equipment ground
bar kit, and
(2) HOM120 Homeline 20 Amp single pole circuit breakers.

The HOM1224L125TC is available separately, and the -T in the -TC
suffix is for a factory installed ground bar"

So it looks like I found the panel I'm looking for. Just goes to show
sometimes you have to go to the store and look more closely as some
companies manufacture product exclusivly for Lowes or HD.


*Congratulations on the good find. Yes the valuepacks that include branch
circuit breakers are packaged exclusively for the retailers. The panels
sold at the electrical supply companies never come with branch circuit
breakers which makes the products at Home Depot and Lowes very enticing.