i doubt these are 115 KV or 150 KV...insulators aren't long enough and there's not enough clearence between the lines..probably 69 KV or less...looks like a sub-transmission line.

4 disc is common for 50 kv systems. 5 is common for 69 kv systems.

Well what I am Asking is about the bracket, I think the brackets insulate. Because when the insulators are connected STRAIGHT to the wood or metal, 8 or 9 Disc Insulators hang down. And on Dead-Enders always have 12 Disc insulators on them. So I do think these are about 115 KV.

No this is not a 115 kv system. In our standards book at work, 4 disc is for 50 kv. Usually there are more disc at dead ends to keep proper clearances from grounded equipment.

Well what I am saying is that I think the brackets insulate. Like the little thing HOLDING the insulators is also an insulator... It looks like an insulating material.

And on this EXACT set there were some places with 9 disc insulators hanging down and the age was the same.

I am not sure... But it seems that this would be that high.

How many disc insulators hang down for a 115 KV system?

115 is typically 8 disc. You can't have 4 on 115 even if the brackets are polymer. You are risking a flash over or could get tracking. Are the 8 disc insulators on newer poles along this run.

@ Ian, I'm not sure if the bracket can be trusted to be an insulator. I'm pretty sure the bracket isn't polymer. It would most likely have to be metal to support the wires. Those things are pretty heavy, especially with far pole spacings.

I am not sure, they both look the same age.

But you never actually know, maybe these ARE 115 KV but Xcel energy just made a dumb move. But I have seen lots of places in Xcel with these type of brackets.

What are the high-high voltage lines? I think I typically see like 20 Disc insulators on them, hanging down or dead end, they are probably different. Maybe more disc insulators I can't tell.

115 must also be a minimum 6' from and grounded equipment.

What voltage(s) would these poles be? This is what Narragansett Electric liked. NGrid is renewing these high tension poles across the state with ones closer looking to what Ian has except they're anchor base steel and some are wood.

Hm I see, what are the high voltage lines Voltage usually? Like the ones with 20 Disc insulators or maybe a bit more on them. Is that about 400 KV?

Mike, there are two different voltages in the link you sent. The one with the parallel runs and longer disc setup is a 345 kv system. And the other 2 circuits are both 115. We have these exact setups also here as well.

345 kV?! What's considered an average high voltage line voltage? Is that a high or low voltage by today's standards?

345 KV is used in Texas,the lattice towers even resemble stars.

i've heard they have lines above 765 KV...i know there's some in Virginia..and 500 KV in California.

the benefit for raising the voltage is less current for a given amount of power transferred so you can use thinner conductors,though there's obvious risks too...who wants to live next to that.

Not me that's for sure! Is it true that the electromagnetic radiation from high voltage lines can cause cancer?

Denver (Xcel Energy) Uses those voltages for their main voltage lines.

Sometimes one setup has where one side of the lines has 345 KV and the other side has 115.

HERE Is an example.

The weird thing about that set of power lines is the POLES (or frames) Are meant to hold THREE sets of three wires, but only hold two, leaving one of the sections empty. What might be weirder is that instead of leaving the middle one empty they left one of the side ones empty.

For a while this set gets a third set of three, a 115 KV set that get's added on then branches back off to give electricity to the mountain areas, which actually give electricity to that 45 KV line that will be replaced that give electricity to my HOUSE.

You can see the same set HERE when it has three sets of three. But that was the only time it had three, you can browse the maps to see where they branch on then branch off.

Maybe Xcel energy had the money and decided to just spend the money using more expensive. xD

i've heard that it causes cancer...but i hear talk disputing that and supporting it...i can't see Electromagnetic Fields being harmful.

also..a Thread has began on this photo...High Voltage Ian Thread XD

Shoebox thread > HV Ian Thread.

Back to the picture.

They made brackets like what is on this picture in Polymer? These don't look polymer..

What do you think these brackets are made out of? They look like they insulate to me.

But they don't look metal, the metal part is on the edges where the insulators attach and where the bracket attaches to the pole, Which is why I think they are an insulating bracket.

Here in Southern California Edison territory, the highest voltage I know of on wooden poles are the 66kv sub-transmission lines. They are identified as being on tall wooden poles, usually found along some major roads. The transmission lines on the tall steel towers are either 230kv or 500kv.