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#125909 - 03/22/03 06:31 AM Exposed Live Wires, Green EGC!!
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA


[This message has been edited by Joe Tedesco (edited 09-10-2003).]
_________________________
Joe Tedesco, NEC Consultant

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#125910 - 03/22/03 03:15 PM Re: Exposed Live Wires, Green EGC!!
n1ist Offline
Member

Registered: 02/13/02
Posts: 176
Loc: Malden MA
Most of those concrete poles are used for street lights (for illumination), not for traffic contol lights. In that case, the standard color code applies. I thought the spec you quoted allows the use of a green wire to feed the green light in a traffic (red/yellow/green) light.

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#125911 - 03/22/03 04:05 PM Re: Exposed Live Wires, Green EGC!!
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
TRAFFIC SIGNAL CABLE
CLASSIFIED IN ACCORDANCE WITH
IMSA SPECIFICATIONS (XNTL)
GENERAL
This category covers cable investigated in accordance with International
Municipal Signal Association Inc. specifications. The cable is intended for
installation as aerial cable or in underground conduit as part of a traffic
signal system. This cable employs a color-code scheme that permits a con-ductor
with green insulation to be used for other than grounding pur-poses.
This cables has not been evaluated for flammability. This cable is
not suitable for use as a substitute for cable or wiring systems covered in
NFPA 70, ‘‘National Electrical Code.’’
ADDITIONAL INFORMATION
For additional information, see Electrical Equipment for Use in Ordinary
Locations (AALZ).
LOOK FOR CLASSIFICATION MARK
The Classification Mark of Underwriters Laboratories Inc. on the
attached tag, the reel or the smallest unit container in which the product is
packaged is the only method provided by UL to identify products manu-factured
under its Classification and Follow-Up Service. The Classification
Mark for these products consists of the statement ‘‘Classified by Under-writers
Laboratories Inc. in accordance with IMSA Specifications XX-X’’
together with a control number and the product name ‘‘Traffic Signal
Cable.’’ In addition, the Classification Mark may include the UL symbol
(as illustrated in the Introduction of this Directory).

[This message has been edited by Joe Tedesco (edited 09-10-2003).]
_________________________
Joe Tedesco, NEC Consultant

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#125912 - 03/22/03 05:31 PM Re: Exposed Live Wires, Green EGC!!
resqcapt19 Offline
Member

Registered: 11/10/00
Posts: 2209
Loc: IL
Are traffic signals under the NEC? If so how can an UL Standard change a NEC rule?
Don
_________________________
Don(resqcapt19)

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#125913 - 10/16/03 11:31 PM Re: Exposed Live Wires, Green EGC!!
e57 Offline
Member

Registered: 05/27/03
Posts: 2837
Loc: S.F.,CA USA
In San Francisco, I spotted a homeless guy who spliced into conductors through a hand hole on a street light pole like this. He stripped back the insulation, wrapped them around the terminals of a receptical, even taped it back up. Then plugged his hot plate into it for a curb side kitchen. He says that he pushes it back and closes the cover when he's done with it, so no one will see it, or get hurt. I went over a few things about the lack of circuit breakers or fuses, and what could happen. That it would go off like a grenade. ( The lights are tapped from the utility feeders over-head, then pole to pole under-ground. I actually don't know if they're fused or not. ) I told him about a box I was closing once when a kerny pushed through the tape, and blew a three inch hole through the cover. I hope it freaked him out a bit. And, I got the city to pull his plug a few days later. I did think it was a pretty bold move though. A hot plate in a shopping cart hooked up to a light pole.... I've noticed a lot of power theft line of discussion lately in the posts, and figured I should add this one in.
_________________________
Mark Heller
"Well - I oughta....." -Jackie Gleason

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#125914 - 10/17/03 08:59 PM Re: Exposed Live Wires, Green EGC!!
wa2ise Offline
Member

Registered: 11/29/02
Posts: 771
Loc: Oradell NJ USA
And you know what dogs are likely to do at trees and poles.......

As for the homeless electricity "user", he could use one of those light bulb sockets with the pigtail leads and a fuse on the hot side feeding his receptical for over current protection. Though I doubt that would be code. I've seen in New York City streetlight pole bases with missing covers where a pigtail lightbulb socket with a screw in fuse. No plug though. I suppose the fuse protected the 12 gauge wiring in the pole.

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