NM Cable in NYC

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roc

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NY City only recently switched from a city written electric code to an NEC (1999) based electric code with amendments in 2003. NM is permitted in homes, but it was reported that this was previously not permitted (with most homes wired with AC cable).

Do any local electricians or inspectors know if this is only a recent change, as I didn't keep older codes.

[P.S. I looked at the 1987 and 1992 editions I have at work, and they both allow the NM. Also, someone else indicated it's allways been allowed but may have been considered "subject to damage" with the typical basements here in the northeast]

Any thoughts?

Rob O

[ February 09, 2004, 09:43 AM: Message edited by: roc ]
 
Re: NM Cable in NYC

ROC are you looking at nec or nyc electrical code,I moved from nyc in 84 and then nm was not allowed within city limits,only bx,emt rigid etc.
I was surprised when I heard that nyc had adapted the nec(with addendums)
 
Re: NM Cable in NYC

The 1999 NEC allows NM cable, but you have to look at the addendums which state 1&2 family homes and not to exceed 3 floors. This applies for NYC.
 
Re: NM Cable in NYC

From the 1987 Electrical Code of New York City (the last time NYC updated their previous code).27-3055
3. Prohibite Uses. Type NM or NMC nonmetallic sheathed cable shall not be used:(a) as service-entrance cable; (b) in commercial garages; (c) in theaters and assembley halls; (d) in motion picture studios; (e) in storage battery rooms; (f) in hoistways; (g) in any hazardous locations; (h) embedded in poured cement, concrete or aggregate.
As far as the written code was concerned the rules were only slightly different. But the 'word' was that it was not permitted, and it seems no one fought it.

The '99 addendum states that NM cable is not permitted " in other than residential buildings of three floors or less."
" in commercial buildings"

In July the 2002 NEC will be the reference and those addendums will be released shortly.

Pierre
 
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