SOME EFFECTS OF THE ENVIRONMENT ON THE ROUTING
OF RECENT 330 kV TRANSMISSION LINES IN WESTERN AUSTRALIA
(1981)Abstract
The State Energy Commission of Western
Australia planned to extend the power station at
Muja, on the Collie coalfield 200 kilometres
South East of Perth, by installing two 200MW
generators. Two transmission lines operating at
330kV AC were required to transfer the power
from the generators to Perth, where it would
feed into the metropolitan grid system.
The transmission lines were routed apart to
obtain maximum security in the event of lightning
strike, bushfires or aircraft mishap. Part of
each line was routed on the coastal plain whilst
the remainder of both traverse the hills through
the Northern Jarrah Forest. The environmental
problems associated with routing the lines
through the forest are discussed. Of particular
interest are;
1.A forest disease which has seriously
affected the indigenous trees and the
care which has had to be taken during
the construction of the transmission
lines to avoid aggravation of this
problem.
2.The routing of the transmission lines
through a high salinity water catchment
and a bauxite mining area.
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