Halish Railway
Established Member
How do you access the bridge numbers? I was planning to have captions saying ‘Colton Lane OB’ for example.
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Transpennine Route Upgrade and Electrification updates
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59CosG95
Established Member
GRALISTAIR
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Both ideally!! Please and thanks
Halish Railway
Established Member
A quick few questions:
1. What is going here? This is just north of Church Fenton next to the Down Leeds.
2. Is a return wire the same as an earth wire?
3. Is ‘arm’ the correct term to describe what is connected to the SPS?
Also not a question as such, but I couldn’t find the numbers for all of the bridges on the website linked.
1. What is going here? This is just north of Church Fenton next to the Down Leeds.
2. Is a return wire the same as an earth wire?
3. Is ‘arm’ the correct term to describe what is connected to the SPS?
Also not a question as such, but I couldn’t find the numbers for all of the bridges on the website linked.
59CosG95
Established Member
1. That is the Power Supply Building that's been mentioned a few times in the NR monthly tracker.
I can't quite remember if it's signalling or traction power - it might be the latter.
2. Yes and no; the non-track wire here is an earth wire, but on the ECML, where it still has little insulators (mainly brown porcelain) it is a return conductor.
3. AIUI the Sicat cantilevers have separate catenary and contact components when on stovepipes - have you got a picture for question no. 3?
Halish Railway
Established Member
59CosG95
Established Member
Ahh I see - well that's the cantilever frame that's been installed on both sides. Last thing they need is the registration arms.
ABB125
Established Member
I've often wondered with these structures, would it not be possible for the further away wire (the one currently attached using the enormous cantilever) to be attached using a slightly longer, upside-down version of the support arm found on the closer track, to reduce the amount of steel used? (This might come at the expense of a slightly taller mast.) With a lower mass of steel hanging to the side, there would be a lower bending moment, so potentially the mast and foundations could be made less substantial as well?
A bit like this:
whats the advantage of a cantilever. surely Mk3 was simpler. 1 mast each side of the railway. or a portal.
ABB125
Established Member
Also a good question! Personally I think single masts either side of the track is better, but there are a number of possible benefits of twin track cantilevers. Theoretically you could have the adjacent line open to traffic during installation, as all the masts are on one side, but I doubt it happens in practice ("because safety"). You also need half the number of masts and foundations (but they need to be a lot bigger).
D6130
Established Member
....but Church Fenton to Colton Junction is four tracks, so surely you would need the same number of masts and foundations?
Brissle Girl
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To my eye, twin track cantilevers are much less elegant than a very simple mast on either side. They jar with the surroundings in a way that simple symmetrical masts don't, primarily because of the extra steelwork required.
You need the same number of masts and foundations as a gantry, but the advantage is you only need to close 2 tracks at a time rather than blocking all 4 as you would need to put the gantry boom across.
quantinghome
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Half the number of foundation though. Even if the piles need to be a bit longer, that's got to be a fair saving.
59CosG95
Established Member
And if you use 3 masts for 4 tracks (with the centre mast being a "back-to-back", having a cantilever on each side), the "back-to-back" mast requires both tracks to be isolated, even if work's only being done on one.
jonesy3001
Established Member
Any progress on the stalybridge line?
Was on the train from York to Leeds this morning and noticed the gantries just stop outside church fenton station.
Was on the train from York to Leeds this morning and noticed the gantries just stop outside church fenton station.
themiller
Member
Aren’t the piles both longer and bigger diameter thus heavier? If so, it’d take more power to handle and plant them. Isn’t that why the HOOPS wasn’t much use on GWR.
59CosG95
Established Member
No idea on progress there - I believe @GRALISTAIR has more details.
The gantries on the York - Church Fenton section do indeed stop short of the station; IIRC the point where they stop is where the administrative boundary between the North & East route and the East Coast route lies.
jonesy3001
Established Member
quantinghome
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A bit longer, but probably no bigger diameter.
The GWR piles were massively overdesigned - 2-3 times longer than they needed to be.
GRALISTAIR
Established Member
I wish I did sorry. Now back in the USA and at Xmas-New Year surveyed Lostock Jct to Wigan only.
59CosG95
Established Member
Ah shame - can't be helped I suppose!
Halish Railway
Established Member
Final quick question - What are the names of all of the compounds on E1?
GRALISTAIR
Established Member
E1 = North of Church Fenton to York - good question.
https://www.networkrail.co.uk/runni...rade/york-to-church-fenton-improvement-scheme
Partial
According to that link it is only 5 miles
so I would not have though there would be too many.
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There's mast bases in all the way from Miles Platting to Clayton Bridge crossing, apart from the former Park station and Philips Park West junction.
Probably bases further east than that but I was busy doing other things to notice!
Halish Railway
Established Member
There’s two in the Colton Jn area; One off of Colton Lane next to the Down Leeds and one on the unnamed lane that diverges from Colton Lane at the car park for spotting.
The first has steelwork for the OLE structures and machinery (mainly rail borne Cherrypickers) and the latter compound is used to store the Siemens SICAT cantilevers.
The first has steelwork for the OLE structures and machinery (mainly rail borne Cherrypickers) and the latter compound is used to store the Siemens SICAT cantilevers.
CAF397
Member
Last time I went that way I noticed base's all the way to Ashton Moss Jn, just before the M60 Bridge.
There are also various new mast bases around Guide Bridge, and extending towards Stalybridge alongside the yard for approximately 400 yards.
GRALISTAIR
Established Member
Around Guide Bridge? Wow that is good news.
CAF397
Member
Yes, I posted it in November. The junction itself having 2-3 new bases, then several along the Up Hudds line, then more on the Down Hudds along the straight, stopping before the viaducts start.