ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
From an outsider- How does tipping work?
by gfretwell - 12/02/20 02:38 PM
Happy Thanksgiving
by Trumpy - 12/02/20 04:11 AM
Where is Everyone?
by Trumpy - 12/02/20 03:51 AM
What does your work place look like?
by Trumpy - 12/02/20 03:42 AM
Ground fault remover :-)
by dsk - 11/30/20 03:51 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 17 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Utility Related Pictures #118438 09/14/04 02:06 PM
Joined: Oct 2000
Posts: 3,632
Admin Offline OP
Administrator
Member
Quote
Here is a batch I took last week on a walk over the bridge from Cambridge to Boston. I am not calling out any NEC items because there are none here, but would like to hear what the NESC or utility people would have to say about these, especially the closeness to the rail.

- Joe Tedesco
[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Tools for Electricians:
Re: Utility Related Pictures #118439 09/14/04 02:07 PM
Joined: Oct 2000
Posts: 3,632
Admin Offline OP
Administrator
Member
[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Re: Utility Related Pictures #118440 09/14/04 06:01 PM
Joined: Apr 2004
Posts: 201
CharlieE Offline
Member
Joe, these pictures may not be as bad as they look. Generally the NESC requires 7.5' to 10' of horizontal clearance. In this case, the electric utility used Hendricks Cable System for the primary conductors. The Hendricks cable is fully insulated for trees and areas like this where clearances can't be met any other way. I suspect the transformer bank has more clearance than the pictures indicate. [Linked Image]

- - - - - - - - - - - - - - - - - - - - - - - - - - -
Charlie Eldridge, Indianapolis, Utility Power Guy


Charlie Eldridge, Indianapolis Utility Power Guy
Re: Utility Related Pictures #118441 09/14/04 08:17 PM
Joined: Apr 2002
Posts: 2,527
B
Bjarney Offline
Moderator
 
Based on transformer sidemount primary-bushing and arrestor sizes, a guess is it’s “tree” or “covered”-wire (versus insulated) spans at 4kV.

Zero effort has been made to cover taps, splices and terminations. This seems at best ‘on the edge’ for utility distribution. [hendrix-wc.com]

Re: Utility Related Pictures #118442 09/14/04 08:51 PM
Joined: Feb 2002
Posts: 183
N
n1ist Offline
Member
I have wondered the same thing last time I was heading to Lechmere, but as I recall, those lines aren't as close as the pictures make them seem.

Re: Utility Related Pictures #118443 09/14/04 11:18 PM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
Hi gents, I used play on those tracks as a kid, I think? I recognize the Cambridge Courthouse Building in pic #1 at the far right. Is this on 28 (O'brian)? Looks like the bridge to Everett/C-Town? (Been a long time.) If kids in that area are anything like some of the ones I grew up with, they didn't use isulated for trees, they did it to keep people from thowing pieces of pipe on them for fun!


Mark Heller
"Well - I oughta....." -Jackie Gleason
Re: Utility Related Pictures #118444 09/14/04 11:33 PM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
Can't remember what the name of that road (Causeway) is? Are the Edison Stacks to the left behind you here in Pic #1?

[This message has been edited by e57 (edited 09-15-2004).]


Mark Heller
"Well - I oughta....." -Jackie Gleason
Re: Utility Related Pictures #118445 08/12/05 09:21 AM
Joined: Apr 2004
Posts: 810
Theelectrikid Offline
Member
If that's a new pole being installed in pics 3 & 4, when it's finished, you'll be able to do chin-ups on the crossbeam. [Linked Image]


Is there anyone on board who knows how to fly a plane?
Re: Utility Related Pictures #118446 08/12/05 11:22 PM
Joined: Feb 2003
Posts: 288
Y
yaktx Offline
Member
What is the OSHA clearance, 10' to conductors >10kV? Something like that.

I remember a 3rd floor balcony with primary within arms reach (not that I tried proving it or anything).

I've seen stuff like this lots of times and it never ceases to amaze me. I don't pretend to have any knowledge of the NESC but 3-4' from a balcony?

Re: Utility Related Pictures #118447 08/12/05 11:26 PM
Joined: Feb 2003
Posts: 288
Y
yaktx Offline
Member
Oh, yeah, and I remember the POCO manual in that area said, "Do not mistake the covering that may be observed on our wires for insulation. Any contact with our wires can kill you."

The primary that was 3-4' from the balcony had a black covering on it that looked not too different from 600V insulation.

Page 1 of 2 1 2

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
CDS
CDS
Nicholson Ga
Posts: 34
Joined: June 2006
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 20
Popular Topics(Views)
272,205 Are you busy
206,090 Re: Forum
194,093 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3