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OLE damage between Grantham and Newark Northgate (3/12/2020)

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MotCO

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Why can't the Azumas use diesel power? Or is the dangling wire dangerous?
 

Domh245

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Why can't the Azumas use diesel power?

Only some of the fleet have got full diesel power - the bulk of the fleet only have an emergency single genset, which won't be up to much

Also, perhaps more importantly, it is ill advised to run a train through a work site where you've got workers fixing the knitting, particularly if with the failed cable there are various bits potentially hanging down in the way of the train

Edit: missed the edit you made to your post. I think this later tweet from LNER answers the question:

 
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Mag_seven

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Once again the OLE on this particular stretch of the ECML found to be wanting. When are Network Rail going to sort it out?
 

Clip

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Possibly when they get the funding for a full refit. I've no idea how much it costs but I'm sure it would be a lot
 

59CosG95

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Is there also an inherent weakness in the ECML's Mk3 cantilevers or something else? From the rain-soaked image they look like the higher speed ones @59CosG95 provided examples of in the MML thread.
That'll be an AWAC problem - specific to Mk3a/Mk3b catenary. The AWAC (Alumo-Weld Aluminium Composite) catenary was one of the driving cost-savers on the Mk3a/Mk3b range (much cheaper than copper), but is very, very susceptible to galvanic corrosion. Mk3c/Mk3d phased it out, but there are still large lengths of AWAC across the network.

This'll probably be a quick splice fix with a pair of preformed dead ends and a double clevis. The cantilevers are absolutely fine - a quick replacement of the steady arm and re-droppering of the affected spans, and Robert's your father's brother.
 
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