2 ms·
I didn't see it mentioned there, so I have to ask: what about the cabling? Depending on where the telephone cables entered the building, they would have to get
by cesarb 9y ago
I didn't see it mentioned there, so I have to ask: what about the cabling? Depending on where the telephone cables entered the building, they would have to get up to 12 meters longer. How did they make that work? Did they splice every cable? Or did the cables already have enough slack?
- deleted 9y ago[deleted]
- downandout 9y agoThis was my first thought, but I assume that they tackled this issue when they lifted the building, since keeping telephone service running during the process seems to have been the primary goal of the project. Perhaps once the building was up, they did whatever they needed to do to extend the cables.
- jacquesm 9y agoThat depends very much on where the cables were running. Some of them will have gotten longer than needed, others shorter and for some it may not have made a big difference, merely a slight change of angle. The phone companies deal with cable splices all the time (roughly at the rate of backhoe deployment), so they most likely shut down the trunks one-by-one, extended the ones that needed more wire and they may or may not have decided to take up the slack in the remainder (to avoid parasitic inductance and capacitance from rolling up the excess wire).
- thaeli 9y agoNot sure about this specific example, but here's how cutovers between exchanges were achieved at the time. A similar process was probably used: https://youtu.be/VVTzEVPz1YA https://youtu.be/VVTzEVPz1YA (the actual cut-over procedure starts at 8:20)