Ticket Number: HEA-NOC/20070803-4 Ticket Status: CLOSE
Ticket Type: scheduled Resolver: BT Ireland
Ticket Opened: 20070803 15:19 UTC+1 Problem Start: 20070803 15:00 UTC+1
Ticket Closed: 20070917 09:48 UTC+1 Problem End: 20070815 09:00 UTC+1
Site/line: Citywest PoP
We need to schedule an "at risk" window for our entire Citywest (CWT) PoP
facility next Wednesday morning (8th Aug 2007) between 0700 and 0800 while
tests are being carried out on all our AC electrical feeds (~27) to our
BT will briefly attach meters to each AC feed in order to gain a snapshot
of our elecrtical usage. While this work *should* not effect the
electrical supply, BT cannot guarantee that all connections on the
distribution boards are ufficiently secured, therefore attaching the
metering device may cause a short on a particular feed and trip its
To mitigate against total power loss to an entire cabinet (or the entire
cage) BT propose to measure only one cabinet at a time and to attach the
meters to only one of the resilient feeds at a time.
Possible loss of power to any cabinets in the CWT facility.
This includes core and access routers, adva laser equipment, bluenet
equipment, GEANT, JANET and GlobalCrossing links.
All IoTs primary connections terminate in CWT facility, as do their An
20070803 15:09 GM Open ticket to notify clients.
20070807 17:32 GM BT have postponed the electrical works planned for
20070810 16:44 GM This electrical work has been re-scheduled for the
morning of Wednesday 15th August, between 0700 and 0900.
20070815 06:54 GM Works starting in 5 mins.
20070815 08:49 GM Works completed for this morning. An additional window
may be scheduled in the future to test the remaining AC feeds.
20070917 09:47 GAR Decision made that sufficient information was gathered
during this at-risk window. No further investigative electrical works
required. Closing ticket.
Time to Fix:
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