[LINK] Aerial vs underground Cabling....Re: NBN and Batteries
jwhit at melbpc.org.au
Sat Mar 5 12:20:54 AEDT 2011
At 10:35 AM 5/03/2011, David Boxall you wrote:
>Heat rises. Anything underground is, by definition, below the source of
We were talking about risk to infrastructure last night. Seem there
are two risks to underground gear: floods and earthquakes. The first
requires good seals (underground bank vaults, electrical equipment
rooms), while the second is possibly only protected if in flexible
casings (bend instead of break, within a margin of course -- major
upheavals would potentially counter any amount of flexibility). We
decided that Victoria is probably OK with underground stuff (little
earthquake risk of any magnitude; possible flooding in the city
because of the Yarra (it has happened)). But in some areas of Qld,
flooding can obviously be an issue as well as risks to above ground
because of the cyclones.
So as with many projects, it's not a one-size fits all consideration.
Environmental risks are real.
Melbourne, Victoria, Australia
jwhit at janwhitaker.com
Our truest response to the irrationality of the world is to paint or
sing or write, for only in such response do we find truth.
~Madeline L'Engle, writer
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