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Author Topic: Great Western Main Line electrification - ongoing discussion  (Read 146724 times)
Electric train
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« Reply #990 on: May 11, 2020, 09:56:42 am »

We seem to have missed this (well I have, anyway):

Quote
UK first: Patchway gap on Great Western (between Patchway Short Tunnel & Patchway Old Tunnel) has just been wired with tensionless conductor bar as part of the electrification programme. Due to the size of gap (160m) it would have been difficult to wire in a tensioned system





Other photograpahs here: https://mobile.twitter.com/25kv/status/1114928419383463937?lang=en

When I was Designated Project engineer Conductor beam for Canal Tunnels (part of the Thameslink programme) we used conductor beam through St Pancras low level platforms through to Belle Isle on the ECML.  The technology has been used in Europe of high speed railways for decades
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« Reply #991 on: May 11, 2020, 12:18:38 pm »

There doesn't appear to be much stagger in the conductor beam photographed above. Does it have less pantograph wearing qualities than catenary wire?
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paul7755
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« Reply #992 on: May 11, 2020, 12:49:08 pm »

There doesn't appear to be much stagger in the conductor beam photographed above. Does it have less pantograph wearing qualities than catenary wire?
Iím sure thereíll just enough stagger, the pantograph actually bears on a normal conductor wire, clamped in the beam sections.

Paul
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Electric train
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« Reply #993 on: May 11, 2020, 04:17:03 pm »

There doesn't appear to be much stagger in the conductor beam photographed above. Does it have less pantograph wearing qualities than catenary wire?

The stagger is the same as wire, however is should be noted the distance between registration arms (support) for conductor beam is less than required for wire so the stagger may not look so pronounced
« Last Edit: May 11, 2020, 06:03:09 pm by Red Squirrel » Logged

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« Reply #994 on: May 12, 2020, 09:50:57 pm »


Rumour has it that the balises will be gone and the Severn Tunnel will be pan-up from 24th May (Empire Day and Q Vic's birthday),

Any confirmation?

OTC
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« Reply #995 on: May 12, 2020, 10:54:05 pm »


Rumour has it that the balises will be gone and the Severn Tunnel will be pan-up from 24th May (Empire Day and Q Vic's birthday),

Any confirmation?

OTC

Posted elsewhere by 'insiders' on the WNXX Forum:

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Severn Tunnel switch on delayed again from 24 May to 21 June "at least".
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TonyK
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« Reply #996 on: May 13, 2020, 03:49:20 pm »

So re-timed to coincide with International Surfing Day. Will there be special trains with room for boards?
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onthecushions
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« Reply #997 on: May 13, 2020, 04:01:29 pm »


As a surfboard is c2m long they would help with distancing on board. I'd like to see someone try to get one round the doorways of an 80x (and avoid the OLE).

Can it be done?

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stuving
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« Reply #998 on: May 13, 2020, 05:57:46 pm »


As a surfboard is c2m long they would help with distancing on board ...

Can it be done?

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Surely not - wouldn't one or both of you fall off the end?
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Bmblbzzz
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« Reply #999 on: May 13, 2020, 07:53:49 pm »

That depends what they serve on board:
https://youtu.be/IuA-c1046JU
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« Reply #1000 on: May 18, 2020, 09:50:08 pm »


Rumour has it that the balises will be gone and the Severn Tunnel will be pan-up from 24th May (Empire Day and Q Vic's birthday),

Any confirmation?

Posted elsewhere by 'insiders' on the WNXX Forum:
Quote
Severn Tunnel switch on delayed again from 24 May to 21 June "at least".

A driver notice has been issued saying electric authorisation in passenger service is going to be 31st May.  I'll keep a look out in case that gets rescinded, but it's currently looking good.
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To view my GWML Electrification cab video 'before and after' video comparison, as well as other videos of the new layout at Reading and 'before and after' comparisons of the Cotswold Line Redoubling scheme, see: http://www.dailymotion.com/user/IndustryInsider/
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« Reply #1001 on: May 31, 2020, 09:40:20 pm »

From the WNXX Forum:

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1L68 1422 Swansea to Paddington today (31/05/2020) was the first passenger service to run through the Severn Tunnel on electric.
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onthecushions
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« Reply #1002 on: June 01, 2020, 11:15:57 am »


"Due to damage to the overhead electric wires between Bristol Parkway and Newport South Wales all lines are blocked.
Impact:
Train services running through these stations may be cancelled, delayed or diverted. Disruption is expected until 14:30 01/06."

From GWR site.

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TonyK
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« Reply #1003 on: June 01, 2020, 11:58:57 am »


"Due to damage to the overhead electric wires between Bristol Parkway and Newport South Wales all lines are blocked.

OTC

Oh dear. Not in the tunnel, I hope?
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GBM
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« Reply #1004 on: June 01, 2020, 12:23:49 pm »

New thread on this incident today -
http://www.firstgreatwestern.info/coffeeshop/index.php?topic=23567.new;topicseen#new
Wires down at Patchway
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