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#78475 - 09/28/01 07:10 AM 4 story NM-B ?  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
Apparently the 'Nayional Multihousing council" has appealed proposal 7-137 over the heads of CMP-7 and the Technical Correlating Committee to the NFPA's "Standards Council" to allow NM-B per art 336 in over 3 stories;

some rop's here; http://www.necdirect.org/pdfs/A331-340.pdf

comments?curses?death threats???


2017 / 2014 NEC & Related Books and Study Guides

#78476 - 09/29/01 11:07 PM Re: 4 story NM-B ?  
nesparky  Offline
Member
Joined: Jun 2001
Posts: 642
omaha,ne
The oldest story MONEY talks. Soon enough the big boys will get to use romex anywhere and not have to pay for licensed workers.


ed

#78477 - 09/29/01 11:23 PM Re: 4 story NM-B ?  
Anonymous
Unregistered

Is that the deal? It takes to much skill to run anything other than NM cables?


#78478 - 09/30/01 12:01 PM Re: 4 story NM-B ?  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
hmmm, well...i DO get the impression that there is way more of a $$$ influence invovled than anything else.

I've also been informed that the NM rule was not always around....and that the 'substaintiation' for the change was apparently more $$$$ based than one centering on saftey... [Linked Image]

Any older 'precode'* electricians care to comment???

* well maybe that's not the correct word, but U get the idea...


#78479 - 10/02/01 10:58 PM Re: 4 story NM-B ?  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
For what it's worth ... in one of our local counties (Montgomery Cty MD) they have modified the rule to read no RX in any structure over 3 floors. Don't matter if it's a 4 floor, underground pkg garage. 3 is the limit; they count unfinished basements, parking levels, finished attics and everything in between. The GC's are having a fit over the cost of the electrical part on some of these taller houses.



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