Originally Posted by
Master Splinter
The list of activities you are legally allowed to undertake in relation to mains wiring as a non-electrician, across all states and territories of Australia, follows:
#List starts#
Replace a blown light bulb
Put a new length of fuse wire in an old style pull out ceramic fuse block
#List ends#
To do any more than that (ie replace like for like) you need at the minimum a connect/disconnect license; typically these are only available to a select few related trades (plumbing, gasfitting, refrigeration mechanic) where you may need to replace a hot water system or similar hardwired device.
That said, here's a link to the NZ government's "How to do your own house wiring to AS/NZS standard" DIY guide -http://goo.gl/9d33T (PDF file).
NZ - despite sharing exactly the same set of rules and standards on electrical wiring as us - has allowed DIY electrical work since the late 90's, leaving Australia pretty much all by itself in the list of first world 'thou shalt not do thou own wiring' countries.