On Monday, March 11, 2019 at 11:20:20 AM UTC-4, Dave Liquorice wrote:
On Mon, 11 Mar 2019 08:43:45 -0000, Brian Gaff wrote:

I assume the wire that ran between poles also had some kind of steel
component to make sure it had the strength.

Dropwire No.10 has two copper pairs and 3 brassed steel strainer
wires and a very tough polyethylene jacket.


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Cheers
Dave.

Yes, but that is drop wire. The high voltage wires between poles, don't have steel for support, just the conductor.