"Steve Asher" wrote to "MIKE ROSS" (26 Dec 02  23:38:51)
 --- on the topic of "HVDC Transmission Lines"

 SA> I guess following on from that the insulation required for HVDC
 SA> would be less than for HVAC also, without the need to accommodate
 SA> the ac peak voltage. I have noticed that recent overhead HVAC lines
 SA> here appear to be aluminium, probably steel cored for strength.

One could add that AC, besides inductive (with ground eddy currents),
also has some radiation losses (power lines act as emitter antennas).
Especially in the near field... both electrostatic and magnetic!

 Mike
 ****

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