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Where should this be moved to? overhead line? overhead lines? overhead power transmission? --Robert Merkel
I'm curious about what differences there might have been with old equipment used for streetcars. A lot of those vehicles had straight collection arms (instead of pantographs) with pulley-style wheels on the ends. Managing a transition between breaks would seem to be more difficult, and speed would seem to be an issue (although I know such systems ran at up to 100 km/h in the early 20th century in my region of the U.S.—possibly not over breaks, but certainly in between them). —User:Mulad (talk) 14:06, Sep 29, 2004 (UTC)
I removed this:
What? By 1888 Sprague's Richmond installation was already running. An amateur named John C. Henry used overhead copper cable to power his experimental car in 1884. And overhead wire was neither the first development, nor the critical one, in developing electric railways.
For those curious, Woods' invention was not of the use of overhead wire for powering electric railways, but of an improved wire carriage (or "troller" or "traveller" designed to ride on top of a wire. These had previously been in use by other inventors, but Woods' invention was of an improved type with three wheels on a single wire and flanges, all apparently to address the problem that trollers had in falling off the wire. He did not submit a model, so I don't know that his design was ever tested.
The upshot is, that once sprung trolley poles were successfully deployed, all trollers became obsolete. -- Cecropia | explains it all ® 18:07, 25 Feb 2005 (UTC)
I am still new in this electrical knowledge, but somehow can someone tell me the differences between LRT and trams?
I am still new in this electrical knowledge. But can someone tell me the differences between LRT and Trams?
please somebody help me out ....regarding what is proper functioning of power grids in india/US?
could somebody explain me about the ring main units working and about the construction of Ring main units... Ajay Bhargove, NDPL
Its a little confusing to have three seperate articles about similar subjects. Why not have one article with three seperate sections? Piercetp 06:45, 25 May 2006 (UTC)
Merged as requested. SilkTork 22:09, 29 May 2006 (UTC)
Do we really need both of these diagrams? They seem both the same to me. I am removing the first one, if you disagree, please revert without warning on my talk. I won't dispute this.martianlostinspace 14:06, 21 December 2006 (UTC)
It seems there are mixed up together "supply-lines" and the otherwise built "traction current lines". There are for example no "four lines on the lowest crossbar" of a "traction current line". The supply current lines have 110 kV power, the traction current lines is transformed down to 15 kV power. I live in Germany and I have never seen "eight conductor cables" on "traction supply lines". Regular are two lines for 110 kV supply and one line for direct supply of the traction line. The other bzw. feedback-"wire" then is the earth. Better kill the whole section "Germany"- it`s mostly wrong! 62.109.75.136 08:28, 1 February 2007 (UTC)
Why is 16.7 Hz used in Germany?LorenzoB 18:37, 7 April 2007 (UTC)
How come that when i cross a railway line, by means of a level crossing/one of those little paths that you use to cross the line with the STOP LOOK LISTEN sign in the UK, i dont get electrocuted? ACBestMy ContributionsAutograph Book 15:50, 21 June 2007 (UTC)
For heavy rail systems currently using diesels, I'm curious what the costs and benefits are of switching to overhead lines, both on tracks that don't yet have the overhead lines (is there some benefit to the proposed MBTA Indigo Line's use of DMUs, rather than putting in overhead lines and using EMUs?), and on tracks that have overhead lines but use diesels anyway (such as the MBTA train to Providence, which normally operates along the same track where Amtrak trains use the overhead lines). JNW2 14:54, 5 September 2007 (UTC)
It would be interesting to know the distance between the wire and the ground, and if there are different standards (including trams). Dvortex 14:55, 14 September 2007 (UTC)
I added the section: Technical Advances Lowers Running Costs Waterspaces (talk) 13:25, 3 April 2009 (UTC)
Just wondered if anybody had any input on this
Wikipedia:Reference_desk/Science#Power_lines_compared_to_Overhead_cables_on_train_lines
Any help would be appreciated. Thanks GregB1968 (talk) 17:00, 2 April 2010 (UTC)
Strolling around the wikipedia articles about trains I found the remarkable "Westinghouse" or "inclinée" (in French) style overhead wiring. It is falling out of use by now because it is quite hard to construct and the tensioning cannot easily be changed after the wires are being constructed. It is not mentioned in the English article, but it is referred to in the French one. I found an image (on the right) showing that it is still in use in the US too.
It might be mentioned, I do however have little information about it. I do know it does not need weights to keep the line under tension and might be interesting for historic reasons. In France this system is only maintained when of historic of cultural relevance, other lines are being rebuilt to the standard French overhead support system. Does anyone know what the American policy towards the Westinghouse catenary is?
This is the text the French wikipedia has on it:
My French is quite poor, but it roughly says:
Can anyone (preferably a Francophone) check my translation, for it is of doubtful quality? Does anybody know a suitable source of information on this type op equipment, the French article doesn't cite any references.
NB: I found another picture showing the way it looks on straight tracks: Skewed overhead lines over straight tracks
82.139.114.136 (talk) 13:48, 1 August 2012 (UTC)
'Overhead line equipment can be adversely affected by strong winds' [citation needed]:
I don't know if this article with an embedded video explaining and demonstrating the effect during stormy weather on the danish Great Belt Bridge is a citation in that sense?:
http://ing.dk/artikel/kamerasystem-skal-advare-lokofoerere-mod-svingende-koereledninger-paa-storebaelt-163994 — Preceding unsigned comment added by 200.63.47.32 (talk) 08:34, 17 January 2016 (UTC)
Steel? Copper? Aluminium? Titanium? Some alloy?
This detail is not included in the article, but it would be valuable to know the capacity of typical overhead conductors and the contacts used by trains. — Preceding unsigned comment added by 76.126.241.23 (talk) 05:02, 12 April 2017 (UTC)
An editor has asked for a discussion to address the redirect How can a tram route cross a trolley bus route without short circuits. Please participate in the redirect discussion if you wish to do so. Steel1943 (talk) 21:20, 10 July 2019 (UTC)
There is Headspan and Portal type of OLE, so should they be included? I Like The british Rail Class 483 (talk) 17:56, 25 March 2023 (UTC)
What should we refer it on this page? Since it gets referred to by different names in different sections, I suggest we agree on a name for all of them. I believe 'rigid OLE' or some version of it makes the most sense because it describes that it can not move in use and also is above the train. But third rail seems a bit off since it is not a third rail. I Like The british Rail Class 483 (talk) 16:29, 11 July 2023 (UTC)
Hello, I noticed in the wikipedia article that there is very limited information on the type of wires and setups in use by any other country. Right now this article only contains information on Russia and Slovakia's overhead wires. I personally would and will update it with more information but I would encourage others to search out more information for this topic. ~~ Funforme3 (talk) 19:44, 12 June 2024 (UTC)