Return to the Electrical Wiring Forum | Post a Follow-Up

 o
Question on Running Wires Over Garage Trusses (see image)

Posted by tom_in_seattle (My Page) on
Fri, Jan 1, 10 at 14:21

All wiring for our house comes up from the electrical panel in the outer garage wall. It runs up into the garage attic, then over the trusses across the width of the garage, before turning and running into the house.

As seen in the enclosed image all the wiring is unsupported between the trusses, and most of it was lying loosely across the trusses, with only a few stapled in place.

Since I'm adding quite a few new circuits I would like to know if this is still legal and/or if there is a better way to run the wiring. I'm planning to install plywood flooring in the attic and could probably run it under the wires if needed.

Note: the large red aluminum wiring for the ovens is being replaced by the black 6/3 shown.

As also seen in this picture is a heavy stranded copper bonding cable that runs across the floor and down to were the old gas tank water heater used to be in the garage (a tankless is now up in the attic). The cable attached to the cold and hot copper water lines and also the black iron pipe for the gas supply.

I would like to change the bonding arrangement and run this cable so it attaches to the black iron pipe for the furnace supply, then daisy-chains into the house and connects to the hot and cold copper water pipes, then continues over and down to the Structured Media Center box where I can ground (bond) the metal case to provide a good ground potential for the incoming CATV cable.

Any problems with that arrangement?

Thanks for any suggesstions as always, and Happy New Year!


Follow-Up Postings:

 o
RE: Question on Running Wires Over Garage Trusses (see image)

If you are installing a floor then those cables must be protected from damage.
They should also be fastened at lest every 4 feet.


 o
RE: Question on Running Wires Over Garage Trusses (see image)

So does that mean if I don't install a floor they don't need to be protected :-)

I'm thinking of furing up the flooring on the side of the truss with the wires so the plywood or OSB can completely cover them. The portion over the wires would be removeable and not in place during the rough-in inspection.

Does that sound reasonable?


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Electrical Wiring Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here