The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
230 or 345 kV transmission lines?
by Vlado
Yesterday at 09:33 AM
breaker meltdown
by crselectric
Yesterday at 12:42 AM
Electrical mast flashing product
by ThomasWinfrey
09/22/16 12:14 AM
What estimating software do you recommend?
by sparky
09/21/16 07:20 PM
"Dry Run" Inspection goes awry
by HotLine1
09/20/16 07:39 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
HotLine1 17
sparky 9
gfretwell 9
sparky66wv 8
Vlado 6
Who's Online
0 registered (), 237 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
powerhv3p.jpg
Power company 3 phase insulators
Image Details
Poster wa2ise Offline
Posted 12/21/12 09:09 PM
Description
My brother found the bigger of the two in this picture, in my mom's grass. The smaller clear plastic one (takes two to make a diamond pattern insulator for 3 phase lines running down the street I found on the road about 40 years ago. The yardstick is to give an idea of how big these things are. The power company had been in the area installing the big insulators on their 3 phase lines that the old insulators had failed to hold onto. Probably a part of the Sandy storm cleanup.
Dimensions 328x587
Size 63.49 KB
UBBCode
Thumbnail
Medium
Full

Comments
#208101 - 12/26/12 04:55 PM Re: Power company 3 phase insulators [Re: wa2ise]
JoeKP Offline
Member

Registered: 03/29/08
Posts: 144
Loc: Berkley, MA
ive seen a few lying around hanging on poles, wanting to grab one or 10, lol but havnt had the time to stop.
_________________________
-Joe
“then we'll glue em' then screw em'”
-Tom Silva
TOH

Top
Super Rod Cable Installation Tools

Super Rod Cable Rod System
Super Rod Cable Rod System -
Voted
Best Product of the Last 50 Years by members of NICEIC

#208103 - 12/27/12 12:36 AM Re: Power company 3 phase insulators [Re: wa2ise]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9012
Loc: Estero,Fl,usa
I found a big insulator laying in the road many years ago and when Charley ripped the one off the pole in front of my house and it broke in the road, I noticed it was the same insulator. I put mine out there by the pole and when the PoCo crew arrived, they used it. I guess they thought the company left it there. Now I can look out the window and see "my" insulator working for me.
_________________________
Greg Fretwell

Top
#214535 - 12/19/14 04:22 AM Re: Power company 3 phase insulators [Re: wa2ise]
Meadow Offline
Member

Registered: 09/04/11
Posts: 63
Loc: USA
Spacer cable insulator. Those have been around 60 years, still used today.


Edited by Meadow (12/19/14 04:22 AM)

Top
#214627 - 12/27/14 08:15 PM Re: Power company 3 phase insulators [Re: Meadow]
Trumpy Offline

Member

Registered: 07/05/02
Posts: 8530
Loc: SI,New Zealand
What system voltage are we talking here?
I was always under the impression that these things were only to be used as a temporary thing to stop live phase wires from clashing while changing out a damaged pole?
Hence the lifting eye at the top.
I could have the wrong idea as well, does anyone have a pic of these in use up on a pole?
_________________________
Let's face it, these days if you're not young, you're old - Red Green grin

Top
#214628 - 12/28/14 02:57 AM Re: Power company 3 phase insulators [Re: wa2ise]
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9012
Loc: Estero,Fl,usa
I see these on the MV lines going down the road. Not so much on the HV lines going from town to town.
The MV lines are strung much closer together in that triangle configuration implied by the shape of that insulator.
I never looked to see if they just use them in the "twist" tho.
You have me curious now.
_________________________
Greg Fretwell

Top
#214629 - 12/28/14 09:52 AM Re: Power company 3 phase insulators [Re: wa2ise]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6785
Loc: Brick, NJ USA
I'll get an 'in-use' pic either today (JCP&L) or Tomorrow(PSE&G)

Trumpy:

The 'lifting eye' is what this spacer is supported by. (Messenger)
_________________________
John

Top
#214630 - 12/28/14 04:56 PM Re: Power company 3 phase insulators [Re: wa2ise]
wa2ise Offline
Member

Registered: 11/29/02
Posts: 769
Loc: Oradell NJ USA
Here's a poor quality picture of these insulators down the street:
picture of these insulators in use

Top
#214631 - 12/28/14 05:34 PM Re: Power company 3 phase insulators [Re: wa2ise]
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6785
Loc: Brick, NJ USA
Nice....even has a payphone!!
_________________________
John

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals