On 25 veebr, 20:49, Hans-Joachim Zierke <
Usenetspam...@Zierke.com>
wrote:
John Albert schrieb:
"You can completely exchange a sector of tensioned catenary
within 2.5 hours, anytime."
Ha ha ha.
Maybe they can do it where YOU are, Hans.
Try doing it here.
Plasser & Theurer happily sells you the machine for it. Hey, there is a reason, why everybody and his brother buys in Vienna!
With older machines, it was 3 - 4 hours.
As well, I'm sure that it is not just here. On this planet, the track
with the shortest interval for catenary exchange is the Tokaido
Shinkansen.
Now look at the timetable, how much time they have: Last train, pulling
out of a station, travel to worksite, exchange the wire, travel back to station, get out of the way for first train. They always run an empty
one in the morning to check, that the maintenance crews haven't done
anything wrong.
How often do they need to exchange Tokaido Shinkansen wires?
Tokaido Shinkansen is designed to shut down completely for 6 hours
every night. Not all railways have such design goal.
Japan plans to overhaul Tokaido Shinkansen in 2027 to 2036 - the line
would be 72 year old in 2036. They need to change a number of
bridges.
The original plans had been to shut down the line for 2 consecutive
days on 37 separate occasions over the 9 years. On second thought,
Japan decided that Shinkansen could not be shut even for a day, and
figured out a plan to do the overhaul by closing the line for mere 12
hours - 3 in the evening and 3 in the morning - on 410 nights.
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