Large quantities of cables through metal studs

Reply

  #1  
Old 10-04-19, 05:00 PM
L
Member
Thread Starter
Join Date: Nov 2015
Posts: 1,476
Received 71 Votes on 65 Posts
Large quantities of cables through metal studs

This is from an apartment renovation and I found there are bundles of cables ran through the metal stud without any bushing in multiple locations. Some studs are just cut 2/3 of way to make room of the cables.

Do they even make a bushing large enough for this?
There are also SER cables run through metal studs without bushing. Haven't seen bushing large enough for them either.

Also, cables are secured to the studs with electric tape. Is this considered an ok solution?


The load center is being replaced by electrician and will be inspected. I doubt the inspector will be ok with cables run through studs as in the picture.
 
Attached Images  
Sponsored Links
  #2  
Old 10-04-19, 05:08 PM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 15,151
Received 87 Votes on 74 Posts
Metallic cables do not need bushing brushing through the studs. Non-metallic cables require a bushing.

That work looks like crap, both the hacking of the studs and the electrical.
 
CasualJoe voted this post useful.
  #3  
Old 10-04-19, 05:36 PM
L
Member
Thread Starter
Join Date: Nov 2015
Posts: 1,476
Received 71 Votes on 65 Posts
Changing entire cable is not an option here.
This apparently is how the place was built. There are multiple violations that were added on later, but that cut on stud under the load center appears to be original.

I don't deal with metal studs often and when I do, it was always MC or AC cables. I'm out of ideas on how to correct this without ripping everything out

Also, the demo crew destroyed multiple junction boxes when they took drywall down. Apparently they just ripped drywall out with outlets and switches still installed. Now I get to fix all of those
 
  #4  
Old 10-04-19, 05:56 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 59,224
Received 1,119 Votes on 1,039 Posts
I doubt the inspector will be ok with cables run through studs as in the picture.
I'd be embarrassed to even ask my inspector to come in there.
Are you expecting him to approve the cabling as it is ?
No way any type of NM installed like that will get a pass..... regardless of who or when it was installed.

Metal stud bushings
 
  #5  
Old 10-04-19, 06:13 PM
L
Member
Thread Starter
Join Date: Nov 2015
Posts: 1,476
Received 71 Votes on 65 Posts
The bushing PJ linked is only bushing I could find, which is too small for a large bundle of cables and SER cable.

The owner is saying just cover drywall back on and show the inspector only load center. LOL
This place was fire damaged (not electrical fire) and I'm pretty sure the inspector will be extra picky about anything that may cause a fire.

I wonder if there is a product that can be used as a sleeve.

Only other solution I can think of is installing the stud side ways alternating each sides of the wall so that the cable don't pass through the studs.
 
  #6  
Old 10-05-19, 09:45 AM
CasualJoe's Avatar
Member
Join Date: Jan 2010
Location: United States
Posts: 10,663
Received 87 Votes on 77 Posts
Bushings from Greenlee vary from 7/8" to 1 11/32"


https://www.greenlee.com/us/en/metal-stud-bushings


I certainly hope this isn't a bid job.
 
  #7  
Old 10-05-19, 11:57 AM
2
Member
Join Date: Jan 2014
Location: USA near Boston, MA
Posts: 832
Received 47 Votes on 40 Posts
You could make your own bushings with plastic edging like:

https://www.amazon.com/s?k=plastic+e...l_7xpz4vkq6k_e

You might check first with the inspector to see if that would be acceptable.
 
PJmax voted this post useful.
  #8  
Old 10-05-19, 03:59 PM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: Twin Cities, MN
Posts: 13,638
Received 210 Votes on 186 Posts
How is the white cable coming out of the floor run? It appears to be just in concrete.
 
  #9  
Old 10-05-19, 05:09 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 59,224
Received 1,119 Votes on 1,039 Posts
Just to add on to 2john02458's post......... you'd need to use what we call caterpillar grommet material. It can be installed later. This product is specifically designed for holes in metal.... and especially round ones.... where the other solid type will just bunch up. This is a link from the page john left.

Caterpillar grommet
 
  #10  
Old 10-05-19, 05:58 PM
L
Member
Thread Starter
Join Date: Nov 2015
Posts: 1,476
Received 71 Votes on 65 Posts
I knew there is edge trim materials, but didn't realize I could use them on metal studs.
I guess anything that can cover sharp edges are fine. Right?

How is the white cable coming out of the floor run? It appears to be just in concrete.
It is run through the concrete, but the hole is filled with insulation material.
Is it still allowed to keep as is or does it need to be replaced with fire block foam or caulk since the wall is open?
 
  #11  
Old 10-06-19, 06:39 AM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: Twin Cities, MN
Posts: 13,638
Received 210 Votes on 186 Posts
Is it still allowed to keep as is or does it need to be replaced with fire block foam or caulk since the wall is open?
If it is not cinder fill then it should be OK. Fire caulk will depend on your building inspector.
 
Reply
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: