I've just been doing a bit of surfing for power cable specs on the Net, when this site popped up.
As you may remember, Auckland was crippled by a catastrophic failure of it's 110kV feeders into the city in the early part of 1998, blacking out most of the CBD.

http://www.cs.auckland.ac.nz/~pgut001/misc/mercury.txt

BTW, watch out for the jokes at the bottom of the page!. [Linked Image]