In article .com,
Chris! writes
Whats wrong with providing uninterruptable power to the bits that need
resetting so if there is a power cut / surge in future the only effect
will be a loss of traction?

Cost/benefit ratios.

If it only happens once a year, how much is it worth? Given that you
will need perhaps dozens or hundreds of UPSes. And if they fail more
often than the main power feed, you're actually on a loser!

--
Clive D.W. Feather | Home:
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They manage in hospitals. You can't have someones life support pack up
for any
length of time. Besides , whats with only having a single feed into the
system??
They never heard of redundancy in critical systems?

B2003

"Clive D. W. Feather" wrote in message
...
In article .com,
Chris! writes
Whats wrong with providing uninterruptable power to the bits that need
resetting so if there is a power cut / surge in future the only effect
will be a loss of traction?

Cost/benefit ratios.

If it only happens once a year, how much is it worth? Given that you
will need perhaps dozens or hundreds of UPSes. And if they fail more
often than the main power feed, you're actually on a loser!

Especially, when you consider that this is the only time since I joined LU
in 1985 that this has happened. (Twice if you count the "London-wide" power
cut). The cost of maintaining UPS on the signal main alone would be
astronomical, let alone traction, lifts, OPO kit, station lighting,
escalators et-al...
--
Cheers, Steve.
Change from jealous to sad to reply.