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PoleCat-5 #114733
06/20/03 04:26 PM
06/20/03 04:26 PM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,482
NY, USA
[Linked Image]
Quote
The security company installing cameras on these light poles claim that this is OK, however, I don't agree. Do you?

(BTW, this method has passed inspection in several different jurisdictions)
...S

(Electure)

Tools for Electricians:
Re: PoleCat-5 #114734
06/20/03 06:28 PM
06/20/03 06:28 PM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
SI,New Zealand
Electure,
Is that Cat-5 wire hooked up to them 120V wires?. [Linked Image]
I would condemn anything I saw like this!.

Re: PoleCat-5 #114735
06/20/03 08:41 PM
06/20/03 08:41 PM
N
NJwirenut  Offline
Member
Joined: Sep 2001
Posts: 806
Bergen County, NJ
Is the Cat5 connected to the power wiring, or just spliced with wirenuts?

Re: PoleCat-5 #114736
06/21/03 12:27 AM
06/21/03 12:27 AM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
If the column is considered a raceway, wireway, junction or pull box, them the cat-fivers ought to be busted! Codes seem fairly unambiguous on that.

Re: PoleCat-5 #114737
06/21/03 12:48 AM
06/21/03 12:48 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
SI,New Zealand
I was under the impression that different services had to be segregated!.
Over here in NZ, you are not allowed to run a Cat5 wire within 50mm(2") of any mains cable.
How is it in the US?. [Linked Image]

Re: PoleCat-5 #114738
06/21/03 01:54 PM
06/21/03 01:54 PM
J
JCooper  Offline
Member
Joined: Dec 2002
Posts: 228
Kendall Park, NJ USA
As an installer for security systems, CCTV included, this is more common than you think. I have never installed LV cables inside a lamp post myself but I have done plenty service calls where they run some THWN inside the pole up to an external transformer for the camera power and in the same pole run the coax and any communications to the camera. The right way to do it is to run the electric up the outside of the pole in conduit and the coax and data wires inside the pole, less conduit fill issues with THWN than four coax cables and a couple comm cables. I have also seen poles that had two raceways inside them, or a divider up the center to avoid these situations.

Jim

Re: PoleCat-5 #114739
06/21/03 02:11 PM
06/21/03 02:11 PM
M
maintenanceguy  Offline
Member
Joined: Dec 2001
Posts: 300
Southern NJ, USA
I just installed two video cameras on the top of light poles just like this one.

One was right next to the front door and we did not want to have exposed conduit on the pole because it looks too "industrial". So we put a box on the bottom of the pole, one at the top near the camera, and ran greenfield up the inside of the pole with a 90 on each end which terminated in the boxes.

The coax and LV went inside the greenfield.

On the other pole, out in the parking lot, we just ran PVC conduit up the outside.

Re: PoleCat-5 #114740
06/23/03 12:21 AM
06/23/03 12:21 AM
T
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
It is unfortunate that a brand-new installation is starting off this way... It wouldn't take all that much to have it code-compliant and would make it more safe, reliable, etc.

Re: PoleCat-5 #114741
06/23/03 09:40 AM
06/23/03 09:40 AM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
One of these days a "security" technician will get a nice 277V poke from one of his 24AWG wires. Then, let all the finger-pointing and lawsuits begin!

Re: PoleCat-5 #114742
06/24/03 09:34 PM
06/24/03 09:34 PM
T
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
Ah, but it will be a Cat-V 277V...all of those extra twists will slow down the electric.

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