[ARC5] [BoatAnchors] 125 VAC Line? Make Your BA's Happy, Cheap.

Brian brianclarke01 at optusnet.com.au
Sat Jan 16 20:04:54 EST 2016


Hello Dave,

The standard pressure across Australia is 230 Vac. It has been since 2000 - 
see AS 60038:2000. That there is variation from the standard are matters of 
economics and policing.
There is no need to replace distribution transformers; all that is required 
is to change the existing tap settings, which can mostly be done from 
outside the transformer case.
For anything to receive an electric shock, current needs to pass THROUGH the 
body. Most Australian birds resting, even with both feet on an 11 kV feeder, 
are not big enough to have feet on two 11 kV phase feeders. The surprise is 
that you should be astonished!

73 de Brian, VK2GCE.

On Sunday, January 17, 2016 4:50 AM , Dave waffled:

You're lucky.  Out here in eastern Australia, the volts are supposed to be
240 (nominally 230, but I didn't see any transformers being replaced), and
I just measured it at 234v.  Over in Western Australia (practically a
nation unto itself) they're around 250v.

Trivia: our HV lines run at 330kV, stepped down to 11kV on the overhead
wires, in turn stepped down to the 3-phase 415v for feeding the domestic
240v.

I never cease to be astonished at the birds perching on the 11kV, without
so much as a ruffle in their feathers...

Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will 
suffer."



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