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Joined: Jun 2004
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In California Title 24 extensively covers all manner of lighting and the switching thereof.
So, they are covered by the Building Code -- just not the National Electrical Code.
It's not enough to just know the NEC. There are many, many, Code requirements that affect electrical installations that are driven by non-electrical safetly considerations.
Parking lot illumination is but one of the many.
Such complexity is why residential electricians normally lose their shirts when shifting over to commercial jobs. (And vice versa.)
Tesla
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keeping in mind the various requirements of code and title 24 is the city's own requirements, many times a specific city may go over and beyond any code or ordinance not necessarily the state minimum requirement.
Checking with the city you're planning to work within is very important as well, unless the details are spec'd out on a city approved stamped print.
Last edited by MarkPerry; 09/22/13 10:53 PM.
Anyone claiming to know everything about Electrical, is wrong.
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Joined: Mar 2013
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Lovely thread here, over 4 years in the making... 
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Joined: Apr 2002
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Revived by someone in '12 and revived again by a new member who was off the subject.
John
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Anybody read 210.70 in its entirety?
NO, the 'location' of the switch is not spelled out within the NEC, that is design, common sense, good trade practice, etc.; however a switch controlled lighting outlet is required.
The OP did not say resi or comm, but he mentioned a Building Code that deals with egress illumination. IF he is going comm (egress) then 1006 of the Bldg Code specs illumination.
I got into it with an Archy over his desire for a prox detector in parking garage stairwells 210.70B EX2, which allows for automation like proximity detectors But this was @ a hospital, and i felt that the old folks who move really slow might be left in the dark ~S~
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Joined: Apr 2002
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Sparky:
The stairwells that provide egress are always 24/7 here. Hospital parking decks, mall parking decks, office bldg parking decks. I do not know what 'code' requires it, and I will ask the Bldg guy Thursday when I get back to the office.
Wsa the Archys reasoning to meet Energy Code requirements??
John
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I'm unsure of energy codes, although it would behoove me to bone up on them HotOne
The particular scenario was 24/7 public access, spec'd out for a lotta T5 vaportights
The whole facility was contactor controlled 208 3ph lighting, with the 3rd leg left on 24/7 as 'night lighting'
There may have been an energy code the Archy had in mind, but he didn't impart it to me, so i put the stairs on the NL circuit there.
My ahj didn't seem to have much of a prob with the change i made, everyone else wanted a piece of me though
~S~
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Joined: Apr 2002
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~s~:
FWIW, the T5s for sure work very well into the Energy Code.
IMHO, you made the right move going to the 24/7 circuitry.
Just an FYI for me....who else wanted a piece of you?
John
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The PM and the owners of the place HotOne
they see it as a waste of energy
i kinda see it as a shield from liability
I didn't ask, but i get the impression (code wise) the ahj would have had to pass it w/prox detection
Butcha know how they fare in a public parking garage.....
I wasn't too popular as Mr design build .....~S~
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Joined: Apr 2002
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Failure of a sensor, falling of a person in the unlit area, will keep a flock of lawyers happy.
John
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