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are those spikes below the Secondary fuses, some sort of an anti-climbing protection?
Yes. The brackets have four short arms spaced at 90 degrees with barbed wire run between them. You can see the idea a little better in this photo:
[Linked Image]

It's not standard practice to use primary 11kV fuses at the xfmr here, and you'll see the HV lines just tapped and run straight to the xfmr all over the place:
[Linked Image]


[This message has been edited by pauluk (edited 11-01-2003).]