Copper to Ally

[bren guzzi]

Pulled the old copper out today.replacing it with aluminium .
35 mm copper out...50mm ally in.
Used old wire to pull in the " obviously".

[Lineman North Florida]

The copper you are taking out is probably twice as good as the aluminum you are replacing it with.

[bren guzzi]

The copper you are taking out is probably twice as good as the aluminum you are replacing it with.

I agree. I'm just a number. On jobs like this. " I'm paid from the neck down."

[BigClive]

Hmm, it does seem like step in the wrong direction. Is the copper old and brittle? I don't really see it being an improvement in any way let alone current carrying capability. It's just going to open up that old can of worms regarding aluminiums tendency to have more issues with electrical joints.

[busman]

I'm sure I'm misunderstanding the measurements, but isn't 50mm about 2 inches? Is that some sort of cross-sectional measurement?

Also, I'm curious about why all the man-lifts shown in your photos have the attachment to the boom at the bottom of the bucket? Here in the US, they mostly seem to be mounted at the top rim (including my VersaLift). Any thoughts? It just looks unstable, although I'm sure it's a fine design.

Mark

[Rob]

I'm sure I'm misunderstanding the measurements, but isn't 50mm about 2 inches? Is that some sort of cross-sectional measurement?

Also, I'm curious about why all the man-lifts shown in your photos have the attachment to the boom at the bottom of the bucket? Here in the US, they mostly seem to be mounted at the top rim (including my VersaLift). Any thoughts? It just looks unstable, although I'm sure it's a fine design.

Mark

Tough to say looking at that picture but that looks like 3 stranded copper... We've replaced that in area's with 3/0 AL

[Hebrew]

I'm sure I'm misunderstanding the measurements, but isn't 50mm about 2 inches? Is that some sort of cross-sectional measurement?

Also, I'm curious about why all the man-lifts shown in your photos have the attachment to the boom at the bottom of the bucket? Here in the US, they mostly seem to be mounted at the top rim (including my VersaLift). Any thoughts? It just looks unstable, although I'm sure it's a fine design.

Mark

That would be area of the cross section 50mm squared.Conductor would be about 8mm in diameter,about half inch

[busman]

That would be area of the cross section 50mm squared.Conductor would be about 8mm in diameter,about half inch

Got it. I thought it might be an area measurement. Here it is in circular mils or MCM for 1,000 circular mils. Circular mil is the area of a circle with a diameter of 1 mil. It keeps PI out of the math.

Thanks,

Mark

[bren guzzi]

I'm sure I'm misunderstanding the measurements, but isn't 50mm about 2 inches? Is that some sort of cross-sectional measurement?

Also, I'm curious about why all the man-lifts shown in your photos have the attachment to the boom at the bottom of the bucket? Here in the US, they mostly seem to be mounted at the top rim (including my VersaLift). Any thoughts? It just looks unstable, although I'm sure it's a fine design.

Mark

We've a few different bucket trucks.. I think it's because our poles ain't so high that they are mounted this way.. They seem to mount them to suit the vehicle .. Mostly land rover or similar.
And " Hebrew" explained the conductor size perfectly The copper that we are changing is three strand.. Mind you the ally looks neat when complete.

[Lineman North Florida]

We've a few different bucket trucks.. I think it's because our poles ain't so high that they are mounted this way.. They seem to mount them to suit the vehicle .. Mostly land rover or similar.
And " Hebrew" explained the conductor size perfectly The copper that we are changing is three strand.. Mind you the ally looks neat when complete.

Out of curiousity why was the one jumper run underneath the arm and the other two run over the arm on jumper pins?