Search: Posts Made By: kornbln
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Replies: 5
Views: 950
Posted By kornbln

Help with chimney sweep

I've cleaned my chimney before using a round brush that fits the flue along with flexible rods. I've found that I can't push the brush all the way down once I add a few rods because the rods bend...
08-19-09, 07:51 PM
Replies: 3
Views: 826
Posted By kornbln

Popcorn Ring

I just cut a new 4" hole in my ceiling to move a ceiling fan over about a foot. Anyways, I used a hole saw and saved the piece to fill in the old hole. What would be the best way to fill in the...
08-15-09, 07:56 PM
Replies: 2
Views: 2,497
Posted By kornbln

I doubled the total because I am counting the NM...

I doubled the total because I am counting the NM conductors going to the box plus the THHN in conduit. Do I only count one?
08-14-09, 03:38 PM
Replies: 2
Views: 2,497
Posted By kornbln

Large junction box calculation

I've got 12 NM cables that I need to bring into a junction box and transition to conduit with THHN. Need some help with calculating what size box I need.

I have 2 6/2 aluminum, 1 10/3, 1 10/2, 1...
08-13-09, 08:39 AM
Replies: 15
Views: 3,447
Posted By kornbln

Ok, that makes sense. Does it matter what is...

Ok, that makes sense.

Does it matter what is being supplied? My initial reference to a MWBC was for a 20 amp @ 120 volts circuit providing power to receptacles and equipment. The other MWBC I...
08-13-09, 08:27 AM
Replies: 8
Views: 991
Posted By kornbln

Yep, makes perfect sense. Already have the strut...

Yep, makes perfect sense. Already have the strut installed and already noticed that the straps wont fit where the mounting bolts are. I think I'll make a template of my knockouts on a piece of...
08-12-09, 10:07 PM
Replies: 8
Views: 991
Posted By kornbln

is there any box with factory knockouts that...

is there any box with factory knockouts that actually are the right height for strut?

I think my strut said it was 13/16", thats close to 7/8 but is there also 7/8 strut?

I've already got most...
08-12-09, 09:33 PM
Replies: 8
Views: 991
Posted By kornbln

Factory knockouts vs making your own

I'm bringing multiple conduits into a large junction box with factory knockouts in it. The conduits I'm brining into it are mounted using strut (13/16"). I don't think the conduits will line up...
08-11-09, 10:27 PM
Replies: 15
Views: 3,447
Posted By kornbln

So I am going to run multiple conduits for...

So I am going to run multiple conduits for this... And apparently 9 is the magic number here to avoid derating. 9 wires total or 9 current carrying conductors?

How is a MWBC handled? 2 hots + 1...
07-28-09, 09:37 PM
Replies: 15
Views: 3,447
Posted By kornbln

Let me give you some background on what I am...

Let me give you some background on what I am proposing here...

The main panel in my house is located on the southeast corner of the garage. All of the NM cables go from the panel into a wooden...
07-28-09, 10:04 AM
Replies: 15
Views: 3,447
Posted By kornbln

Yes. They will all be THHN.

Yes. They will all be THHN.
07-28-09, 02:12 AM
Replies: 15
Views: 3,447
Posted By kornbln

Need help with conduit fill calculations

I need to bring a bunch of NM-B cables into a junction box and transition all of them to THHN inside EMT. I have a few questions as I've never done anything on this scale before.

Here's what I...
04-09-09, 08:40 PM
Replies: 6
Views: 1,419
Posted By kornbln

I have never seen the Retro Ring at any Home...

I have never seen the Retro Ring at any Home Depot, and I frequent several locations around my city. I have bought them at Lowe's before. I was just at one the other day and they didn't have it but...
04-08-09, 11:06 PM
Replies: 6
Views: 1,419
Posted By kornbln

Raco Retro-Ring? RETRO-RING for One or Two...

Raco Retro-Ring? RETRO-RING for One or Two Device Applications - RACOŽ (http://www.hubbell-raco.com/feat_item.asp?feature=973)
04-06-09, 11:59 AM
Replies: 10
Views: 1,108
Posted By kornbln

I had a feeling the question about the jbox would...

I had a feeling the question about the jbox would come up. Like I said, it's only a rough sketch.. So here's some more detail.

Whoever wired this before did it wrong, so I'm correcting it.

Two...
04-06-09, 12:03 AM
Replies: 10
Views: 1,108
Posted By kornbln

Do the neutrals for a light switch need to be in the same box as the switch?

In the rough sketch below, can I tie the neutrals together in the jbox and run two hots through the conduit to the switch? or do the neutrals need to be in the switch box too? Both 14/2 NM cables...
04-02-09, 04:02 PM
Replies: 4
Views: 1,478
Posted By kornbln

From what I've read you wouldn't want to use pipe...

From what I've read you wouldn't want to use pipe dope etc in a metallic conduit system because of grounding continuity. This might be fine assuming I'm pulling a ground wire in though...
04-02-09, 03:30 PM
Replies: 4
Views: 1,478
Posted By kornbln

Transitioning from 1/2" EMT to 3/4" RNMC

I have 1/2" EMT attached to the side of a house which comes down the wall into a weatherproof box with a receptacle. A 3/4" RNMC comes up from the ground next to the house, up the wall and into the...
02-22-09, 09:38 PM
Replies: 7
Views: 4,145
Posted By kornbln

If I'm not mistaken, a fan rated box is more than...

If I'm not mistaken, a fan rated box is more than just 10-32 threaeded holes. It also has a longer threaded post.
02-22-09, 03:49 PM
Replies: 7
Views: 4,145
Posted By kornbln

Fan on non-fan rated box

I took down a ceiling fan to inspect how it was installed. What I found is a 4" square box with a fixture mud ring (Similar to a RACO 756). According to what I've found online, a mud ring like that...
06-07-08, 07:57 PM
Replies: 13
Views: 2,369
Posted By kornbln

Yes, that bracket is for low voltage only -- when...

Yes, that bracket is for low voltage only -- when used just by itself. It's designed to mount a 4" square box, then you can use it for power. I already went with the Raco Retro-Ring with a 4"...
05-28-08, 02:39 AM
Replies: 13
Views: 2,369
Posted By kornbln

Right... but I'm sure those panels are designed...

Right... but I'm sure those panels are designed with the intention of being punched. A plastic box designed for a specific application is a little different.

Anyways, the idea of drilling my own...
05-27-08, 09:39 PM
Replies: 13
Views: 2,369
Posted By kornbln

I'm refering to the suggestion of drilling the box

I'm refering to the suggestion of drilling the box
05-27-08, 06:26 PM
Replies: 13
Views: 2,369
Posted By kornbln

Wouldn't I be violating the intended use of the...

Wouldn't I be violating the intended use of the box and the UL Listing?
05-27-08, 09:04 AM
Replies: 13
Views: 2,369
Posted By kornbln

Not sure which one you are referring to but none...

Not sure which one you are referring to but none of those will do what I want. As far as I know Carlon doesn't make a plastic old work box with conduit knockouts, which is why I'm going with metal.
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