<html><head></head><body>Thanks Tony,<br>I will have a go at this.<br><br>We have some poles around here where on the top there are 3 pairs of double wires in > form and on a level below there are three single wires horizontal.<br><br><div class="gmail_quote">On 20 April 2020 8:40:53 am AEST, forster@ozonline.com.au wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail"><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;">In the state of Victoria at least, you can do a bit by visual <br>inspection. With timber poles, the voltages typically are 415v 22kv <br>and 66kv. If it feeds houses and shops its 415v. If it feeds into pole <br>mounted transformers (with 415v out) its 22kv. If it feeds into small <br>suburban sub stations (22kv output) its 66kv.<br></blockquote><br>Hi all<br>To my email above I should have added:<br>With this understanding of the network topology, you only need a <br>single transformer nameplate or busbar label to confirm the voltage of <br>a feeder for its entire length. If you can observe the busbar and <br>switching layout at the source substation you will be able to confirm <br>the voltage of the sister feeders too.<br><br>Tony<hr>Talk-au mailing list<br>Talk-au@openstreetmap.org<br><a href="https://lists.openstreetmap.org/listinfo/talk-au">https://lists.openstreetmap.org/listinfo/talk-au</a><br></pre></blockquote></div></body></html>