Catenary Mast spacing

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Graeme Leary
GCR O4 2-8-0 'ROD'
Posts: 503
Joined: Fri Oct 28, 2011 9:43 pm

Catenary Mast spacing

Post by Graeme Leary » Tue Mar 13, 2018 4:09 am

Hope you can help with advice on approx spacing of catenary masts on straight lengths (based on 00 gauge) - and acknowledging they would be placed much closer to each other on curves.

This is to ensure I buy enough catenary kits in the UK next month as, once my restaurant triplet kit and related teak coaches are completed, the next major project is to start (and hopefully complete) a Judith Edge LNER/BR EB1 electric loco kit (I already have 1 Dapol Catenary system pack
00-CAT 1 but with only 10 masts I know I will need quite a few more to cover a total 'rural' line length of approx 16-17 metres which includes 3 groups of 'gradual' curves. Any rough approximation of number of masts would be very helpful.

I'd also appreciate any comments on the 'pros and cons' of installing the actual wires to the masts. It seems to me they could create problems with access to the tracks for eg removing or rerailing locos and rolling stock, and initially it has not be my intention to fit wires despite the authenticity of having them, but always open to suggestions.

Graeme
New Zealand

drmditch
GNR C1 4-4-2
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Location: Durham

Re: Catenary Mast spacing

Post by drmditch » Tue Mar 13, 2018 10:22 am

If you are looking at the original NER electrification for which the EF1 locomotives were designed and run until 1935, then the masts and catenary were not like any modern system. There are some useful pictures on this very website, if you look under 'locomotives' and then 'electric'.

For further study, there is 'Shildon-Newport in Retrospect' by K C Appleby, published by RCTS.

I do agree about the fascination of these 'chunky' and competent locomotives. I may just have had fleeting glimpse of the Ilford shunter on childhood trips up to London. I was hoping to have had a section on my new railway for a small length of catenary, but haven't yet worked out how to do so!

Good luck with yours!
Last edited by drmditch on Tue Mar 13, 2018 3:52 pm, edited 1 time in total.

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Rlangham
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Re: Catenary Mast spacing

Post by Rlangham » Tue Mar 13, 2018 11:23 am

For the mast spacing on the Shildon to Newport branch, the below is from my book 'The North Eastern Railway in the First World War':
The work on the electrification of the
line was done with minimal disruption to the mineral traffic working
on the line – the overhead wires were mostly hung from a gantry which
stretched across the width of the entire track bed from two vertical posts
on each side of the railway line. The vertical posts were a permanent
fixture, and during construction were used to raise the horizontal gantry,
and then when raised into position the workmen often worked on
fitting the wires whilst stood on wooden planks with steam locomotives
passing directly beneath them. The overhead steel gantries were usually
placed every 110 yards, but placed more closely on sidings and curves,
and consisted of a double wire except where the maximum power
would be not be necessary, such as sidings or where the train would
be going downhill where gravity would assist with the load. Warning
signs were placed along the line, warning railway staff and the public
alike of the dangerous electric wires, and wood boards fitted on bridges
in case those on the bridge got too close or fell off. On
Author of 'The North Eastern Railway in the First World War' - now available in paperback!

http://www.amazon.co.uk/North-Eastern-R ... 781554552/

Happy to help with anything relating to the railways in the First World War, just ask

drmditch
GNR C1 4-4-2
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Joined: Sun Aug 01, 2010 5:55 pm
Location: Durham

Re: Catenary Mast spacing

Post by drmditch » Tue Mar 13, 2018 12:56 pm

Dear Mr Langham. Sorry I forgot to add that reference to your excellent book!

It is a shame that there is so little, if anything, left of the NERs (and Vincent Raven's) visionary scheme.

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Rlangham
LNER P2 2-8-2
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Re: Catenary Mast spacing

Post by Rlangham » Tue Mar 13, 2018 1:20 pm

No problem - the RCTS book is a much better guide to the line and locos, I just relatively briefly covered it as part of what was going on the NER during the war. Definitely a shame there’s practically nothing except cast iron signs, and I believe some equipment on one or two bridges, left of this amazing scheme. At least there’s the quayside electric and the Tyneside parcels van still around
Author of 'The North Eastern Railway in the First World War' - now available in paperback!

http://www.amazon.co.uk/North-Eastern-R ... 781554552/

Happy to help with anything relating to the railways in the First World War, just ask

Graeme Leary
GCR O4 2-8-0 'ROD'
Posts: 503
Joined: Fri Oct 28, 2011 9:43 pm

Re: Catenary Mast spacing

Post by Graeme Leary » Wed Mar 14, 2018 10:00 pm

Thanks drmditch and riangham for comments. The old photos I've tracked down would imply that overhead power wires were carried on heavier wires strung between poles each side of even single line tracks (as on part of my layout where my EB1 loco would run) that could be replicated for modelling purposes by 5mm dowelling, suitable weathered. Might still baulk at fitting the 'power carrying wires' above the actual track/s (so not to impede access) but the 'cross' wires between the poles should be okay. Have I got it right?

However any suggestions re scale spacing (for 00 gauge) much appreciated.

Graeme

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