Going by the recently published notice of energisation, the Up/Down goods loop (5th track adjacent to the relief lines) will be. As will the 5th line (Up branch Down) through East Usk yard.Currently unknown if Alexandra Dock Jct Yard will be electrified
I doubt they’ll bother running in service electric until Cardiff is completed. It’ll be daft to have a pan up/down point for just a couple of months, it just causes confusion. Might as well wait until the whole lot is ready for it.
Depends on how far the knitting runs between Cardiff and Newport. If it runs just short of Cardiff, drivers can pan down on the move and switch to Diesel mode to run into Cardiff, Shouldn't be a problem. Should be the same on returning, the OHL are strengthened to with stand Pan up and Pan down on the move. Oh well, we'll just wait to see how they do it!
Several GW and other railway insiders have posted, possibly in this thread but certainly elsewhere in RUK, that there is no such beast as 'strengthened' OHLE where trains may raise their pantographs if travelling at speeds in excess of 20mph. The only criteria for raising the pans at speeds in excess of 20mph are that:Why not just switch over whilst stationary at Newport? No need for any strengthened knitting then.
Have been told in the past OHLE is along several lines such as the GWML is strengthenedSeveral GW and other railway insiders have posted, possibly in this thread but certainly elsewhere in RUK, that there is no such beast as 'strengthened' OHLE where trains may raise their pantographs if travelling at speeds in excess of 20mph. The only criteria for raising the pans at speeds in excess of 20mph are that:
To assist the drivers these places are signed.
- there is no crossing work, with the contact and catenary wires running over the crossing track
- no neutral or isolation sections
- be clear of the wire overlap at the ends of the tension lengths.
Why not just switch over whilst stationary at Newport? No need for any strengthened knitting then.
I believe the hardware is strengthened compared to earlier designs/installations, (to deal with multiple pantograph running at high speeds), but it is not specifically strengthened at changeover points.Have been told in the past OHLE is along several lines such as the GWML is strengthened
I believe the hardware is strengthened, (to deal with multiple pantograph running at high speeds), compared to earlier installations, but is not specifically strengthened at changeover points.
It is strengthened throughout the Series 1 route relative to other schemes; while the ECML, for instance, uses 11kN catenary & 11kN contact wire tensioned off the same balance weight via an equalising plate, the GWML uses 12kN catenary & 15kN contact wire, independently tensioned using Tensorex. This higher contact wire tension means that panning up & panning down can be done anywhere that it's located; it's just in the best interest of driver route knowledge to fix the pan drop point at specified locations (e.g Moreton Cutting (nr Didcot), Langley Burrell (nr Chippenham), Coalpit Heath (nr Bristol Parkway)).Have been told in the past OHLE is along several lines such as the GWML is strengthened
Ah i see. Gonna be good to run under the knitting on the IETs to Cardiff, they bloomin' fly under the wires
The problem isn't the solid conductor rails themselves but the earth bonding points into the brickwork.I'm confused, after reading the last 4/5 pages on this thread I'm still not sure if the solid conductor rails through the Severn Tunnel are going "live" today? (14.09.'19)
If they are live when / how will the corrosion problems be corrected?
DC
The problem isn't the solid conductor rails themselves but the earth bonding points into the brickwork.
Project Postponements
- Thames Valley Branches:
- Windsor & Henley deferred to at least CP6. The first few yards of the Windsor branch (Not the Henley Branch) have been wired as an overrun.
- Marlow removed from scope of current programme. The first few yards of the branch have been wired as an overrun.
- Southcote Jct to Basingstoke deferred to at least CP6. The first few yards of the Basingstoke Lines have been wired as an overrun.
No energisation as of 16:00hrs.My bad, query not worded properly......
Q? Is the electrification through the Severn Tunnel live yet??
Almost, 13kN catenary and 16.5kN contact.GWML uses 12kN catenary & 15kN contact wire,
No energisation as of 16:00hrs.
I went to a meeting of the Thames Valley branch of the Institution of Engineering Technology held in Reading on 5th September. At the meeting Paul Stanford Network Rail Programme Director Western Route gave an overview of changes made for Crossrail and of the overall electrification project. After his talk I asked him what was the latest plans for the Southcote Jct to Basingstoke electrification work and he said it "was not scheduled in CP6".
I know the Basingstoke flyover is not planned until CP7. I have seen some discussion about a third track between Southcote and Reading West. I can't remember where.Wouldn’t electrification to Basingstoke need frozen plans for the Basingstoke flyover and a decision on any capacity improvements at Southcote (surely its time for a flyover there?)?
It’s in the 2016 Western Route study. Just came up in another thread:[…]I have seen some discussion about a third track between Southcote and Reading West. I can't remember where.
Re-reading this, it's not as clear as I intended!Energised from St. Bride's to Maindee at approximately 17:30.
So, is that from BPW (or thereabouts), through the Severn Tunnel, to Maindee Jct?Re-reading this, it's not as clear as I intended!
Too many night shifts! The St. Bride's section was energised as far as Maindee Junction, just to the East of Newport Station. The sub-section from Maindee out to St Bride's itself has not yet been energised but should be soon.