boring holes for NM
- Thread starter iwirehouses
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kbsparky
Senior Member
- Location
- Delmarva, USA
Too many holes can weaken the structure, and then you get the building inspectors' shorts tied in a knotsplinetto said:
mdshunk
Senior Member
- Location
- Right here.
C'mon. I know you don't wire like that.splinetto said:
e57
Senior Member
- Location
- San Francisco, CA
480sparky, you would be using smaller holes... 1/2", and a more carefull about placement. 35 circuits is only 18 holes... 12 on top and few on the sides into the bottom.
splinetto, Up until a few years ago SF,CA was a one cable per hole town too. (In the book) Now they get all bent up about two... Thier idea was that more than one would equal two... Even though they have failed to add it to thier ammended codes - so when they give me grief on it I drag them out to my truck and tell 'em to find it. As well as a few other non-existant codes they have made up on thier own. They get the drift after the first few times, and I think they enjoy a heathy debate just as well as many of us do. A few get stuborn, and I tell them they need a code to violate on the correction notice, if not I ask them to write the reason for the 'correction' on a change order form so they can help explain to my customer why they are going to be charged extra on thier little whims. (But I say that a little more diplomaticaly) Otherwise, I stick to the magic number 9 - at which point many circuits at full load would change wire size due to derating.
As for damage - just pull them together, or if adding one, soap it. (Lube) On big change orders where some dope - the owner - decides he wants a bunch of extra stuff after I have done most areas - I put some wire lube in a spray bottle diluted with some water and shoot the holes from the floor. Oooo, my guys hate it! But it is a lot easier to pull... Even around corners! (LV wire I just use windex... )
splinetto, Up until a few years ago SF,CA was a one cable per hole town too. (In the book) Now they get all bent up about two... Thier idea was that more than one would equal two...
Even though they have failed to add it to thier ammended codes - so when they give me grief on it I drag them out to my truck and tell 'em to find it. As well as a few other non-existant codes they have made up on thier own. They get the drift after the first few times, and I think they enjoy a heathy debate just as well as many of us do. A few get stuborn, and I tell them they need a code to violate on the correction notice, if not I ask them to write the reason for the 'correction' on a change order form so they can help explain to my customer why they are going to be charged extra on thier little whims. (But I say that a little more diplomaticaly) Otherwise, I stick to the magic number 9 - at which point many circuits at full load would change wire size due to derating.As for damage - just pull them together, or if adding one, soap it. (Lube) On big change orders where some dope - the owner - decides he wants a bunch of extra stuff after I have done most areas - I put some wire lube in a spray bottle diluted with some water and shoot the holes from the floor. Oooo, my guys hate it! But it is a lot easier to pull... Even around corners! (LV wire I just use windex...
)
kbsparky
Senior Member
- Location
- Delmarva, USA
Don't try that approach in one of them new-fangled Micro-Lam beams. You might be back-charged to replace the danged thing.....splinetto said:
Oh no those are no joke micro-lams, para-lams and timberstrands.. On the last house I did they had info posted on every floor on where you can and cant drill. Every time I got to one I had to check the board.kbsparky said:Don't try that approach in one of them new-fangled Micro-Lam beams. You might be back-charged to replace the danged thing.....
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