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I can recall a few happening over the last few years. The distance between the DNO OLE and railway OLE is specified in ENA (Energy Networks Association) documents although I imagine its not a simple affair to manage when you throw in wayleave agreements......
There are some locations with...
Simplistically, Black bonds are for bonding metallic structures to traction earth ensuring a quick disconnection of the supply under fault conditions i.e. structure to traction return rail or footbridge to traction return rail.
Red bonds (dangerous when disconnected) are traction return i.e...
Correct, but this is as and when required due to severity of damage, the bulk of the time both trains and teams are out on electrification projects nationwide.
Windsor Bridge south foundations have been installed by Northern Hub, same designer different contractor, no issues to date.
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I mentioned in my earlier post the issues aren't all quality related, theres a mixture of design problems and safety...