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Heyrod to Ordsall Independant Feeder

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59CosG95

59CosG95

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Elecman said:
Further to th3 closed Blackpool to Manchester Electrification Thread https://www.railforums.co.uk/threads/blackpool-manchester-electrification.66879/
The Heyrod to Ordsall Independant Feeder (HOIF) aka The Great Extension Lead and Heyrod Traction Feeder supply are now complete and undergoing commissioning testing by both National Grid and Network Rail. So hopefully will soon be in service.
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Remind me - that's ATF in cabled form in a trough, isn't it? The southern ECML (Hitchin SATS - Coreys Mill ATFS - Langley Junction SATS - Welwyn SATS If I recall) has it too.
 
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Muenchener

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Elecman said:
Further to th3 closed Blackpool to Manchester Electrification Thread https://www.railforums.co.uk/threads/blackpool-manchester-electrification.66879/
The Heyrod to Ordsall Independant Feeder (HOIF) aka The Great Extension Lead and Heyrod Traction Feeder supply are now complete and undergoing commissioning testing by both National Grid and Network Rail. So hopefully will soon be in service.
Click to expand...
Elecman

Many thanks for the update Elecman. Almost forgotten about the GEL...

Mind the gap please!
 
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Geeves

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Elecman, are you in the know about the recent OHLE markings that have appeared at various places from Ashton to Staly? Potential movement? :D
 
Elecman

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59CosG95 said:
Ahh, thought so! Seems likely that the cables won't be going up on insulators then.
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No but i reckon it would have been quicker and cheaper to have installed the steelwork and hung it as bare wire from them and only ground cabling around Stalybridge and Miles Platting pending thier upgrades
 
jonesy3001

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great news, so will they be putting up the wires from stalybridge to guide bridge and via ashton to victoria and possible bolton to wigan via lostock?
 
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InOban

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So the Bolton electrification thread that was prematurely shut down by the Moderators can now finally be put to rest...
 
Trackman

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InOban said:
So the Bolton electrification thread that was prematurely shut down by the Moderators can now finally be put to rest...
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I was thinking that!
I've seen the Great extension lead at Stalybridge, metal encased and loads of warnings.
 
Elecman

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Correct, apparently the HV electrical protection systems are not set up correctly nor the scada monitoring
 
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superkev

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If they ever put the overhead up to Stalybridge will this very expensive cable become redundant.
If so what a folly.
And, to refresh my memory is there a limit on the number of electric trains on the Bolton line until it's in use.
K
 
59CosG95

59CosG95

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superkev said:
If they ever put the overhead up to Stalybridge will this very expensive cable become redundant.
If so what a folly.
And, to refresh my memory is there a limit on the number of electric trains on the Bolton line until it's in use.
K
Click to expand...
No, it won't be redundant. It acts as an Auto Transformer feeder for most lines in the NW - including Man Vic to Stalybridge. From regularly passing Welwyn to Hitchin on the ECML (which is Auto Transformer fed from 25kV cables in troughs, rather than structure-supported bare wires which need insulators at every structure), I can assure you it won't be redundant. It also saves having to further increase clearances around brides and tunnels, for, like the C&C, it needs a minimum level of clearance around it.
 
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Greybeard33

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As I understand it, an advantage of the troughed feeder, once the OLE is up, will be that it can remain energised, feeding Ordsall Lane, when the OLE between Victoria and Stalybridge is isolated for repairs or engineering work. Hence the name, Independent Feeder.

Whereas an ATF feeder suspended from the OLE structures might have to be isolated for safety reasons, while work was carried out on the adjacent OLE.
 
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edwin_m

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Greybeard33 said:
As I understand it, an advantage of the troughed feeder, once the OLE is up, will be that it can remain energised, feeding Ordsall Lane, when the OLE between Victoria and Stalybridge is isolated for repairs or engineering work. Hence the name, Independent Feeder.

Whereas an ATF feeder suspended from the OLE structures might have to be isolated for safety reasons, while work was carried out on the adjacent OLE.
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However there were originally going to be two electrified routes between Stalybridge and Manchester, so just running the feeder to the west of Stalybridge with separate feeds into the two routes would have given enough diversity of supply.
 
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