Pme question

[Farmelectrics]

While walking the dog local to some stables which were of the beaten track ,I was looking at how some of these houses got there electric supply thet were over head supply's .so I was thinking they must be tt systems but then I started noticing telegraph poles ,but electric ones with yellow signs danger of death now coming of these poles was a thick steel twisted cable. My question is are they to support the pole or are they providing a pme set up

 

[Paul.M]

To support the pole, they get an annual inspection, a 5 and ten year full inspection around these parts. Telephone poles get the same I think?

 

[Farmelectrics]

Thanks paul wasn't to sure

 

[allybally]

While walking the dog local to some stables which were of the beaten track ,I was looking at how some of these houses got there electric supply thet were over head supply's .so I was thinking they must be tt systems but then I started noticing telegraph poles ,but electric ones with yellow signs danger of death now coming of these poles was a thick steel twisted cable. My question is are they to support the pole or are they providing a pme set up

There only to support the pole, if it's a PME earth point then there's a real thick earth cable running down the side of the wood, only seen it the once

 

[Simonslimline]

Overhead PME supply is quite common in the surrounding areas near me. Three phase four wire with a PME connection every few poles.

 

[Amp David]

Overhead PME supply is quite common in the surrounding areas near me. Three phase four wire with a PME connection every few poles.

Same here, almost every Household TT setup has been converted over the last few years

 

[Knobhead]

This steel wire, was it running down the pole or at an angle to the pole?

There only to support the pole, if it's a PME earth point then there's a real thick earth cable running down the side of the wood, only seen it the once

Real thick *removed* but in the case of a CNE earth rod it will be 35mm.

 

[Deleted member 26818]

Usually protected for the last few meters by some plastic capping.

 

[snowhead]

As found in my Son's front garden;

Zoom in and you can see the Earth cable down the pole.


http://img.photobucket.com/albums/0603/mad4v8/IMG_0079.jpg

http://img.photobucket.com/albums/0603/mad4v8/Forums/IMG_0077_zpsfa8484bb.jpg

 

[driverman]

The twisted wire (stay wire) is for support only. Usually inserted into the ground approx 4 or5 metres from base of pole. If you had a straight line of poles supporting O/H cables, the first and last poles would have stay wire. They are known as " terminal poles". Think of it like a tug of war team, they represent the heavy guy at the end!
Re PME, in most areas, there is an earth wire going to ground usually every other pole, with a PME label on pole about 6 ft from ground.

 

[Spearmint]

How thick? The ones I've seen appear to be no larger than 10/16mm.

 

[driverman]

How thick? The ones I've seen appear to be no larger than 10/16mm.

Not sure of exact size, but that is about right. Don't forget there are several cables going to ground ie every other pole.

 

[Farmelectrics]

its about every 4th pole were i am

 

[Engineer54]

its about every 4th pole were i am

Every 3rd to 4th pole is generally about right!!

Overhead PME supplies can generally be considered as ''True'' PME supplies. That and hopefully new DNO underground supplies for say new housing estates, where all joints (or the vast majority) have had the N conductor rodded....