Electric Rails -- Help us test

[Bjarni]

Also, the type of poles is significant. Low-voltage mains power is usually carried on wooden pylons, like telephone poles. These pylons are steel girders.

I have never seen wooden pylons, not even on the 1500V catenary. It's likely that some railroad used to use wooden pylons, but today wood of good quality is rather expensive and metal is not, so they are only wooden until they are replaced.

Isolation is much smaller on "low" voltage catenary, but such a detail is so small that it's less than one pixel, so we don't care

[Born Acorn]

2) Pylons on a single straight line will NOT be on alternating sides. I know The Patch does that, but I think it looks not good. And I've never seen it on a real railway.

3) I wish I could always place the pylons on the outside, but that will not happen quickly. I've plans for that tho.

Thats good to hear, but will the "outside" be defined by left side/rigth side driving?

[jwa1992]

i have a problem with this electric rails. i can't configure the patch 'realistic accleration'.

who want to help me?

sorry for my bad english, but i'm dutch...

[ebik]

1) ebik: What revision is that? I cannot reproduce the problem.

Real life schematics . In fact we have same mounting of wires as in sweden (picture above), I was just showing here that it is not pylons but mounting what alternates sides in real world.

I think zigzag has two reasons, one is:

is to prevent the pickups (pantographs) from wearing out at one spot.

And second is that in summer the cable does not go 'down' only in the middle between pylons, but it can be better kept straight by the weight balance at ends of the wire. (which is the amplitude thing that I was talking before)

[lucaspiller]

For the ease of graphics I think it would be best to have caternaries on the opposite side to signals.

[MeusH]

For the ease of graphics I think it would be best to have caternaries on the opposite side to signals.

This would also ease problem with curves. If catenary is on the same sides on curves, there will be no problem whether it is inner side or the outer side of the curve. Also, it will be graphicly cute. No more messy mismath, eh?


Anyway, here's a "commercial banner" from communistic times...

Communism
-it's soviet goverment plus electrification

[init]

I have never seen wooden pylons, not even on the 1500V catenary

I'm not talking about catenary here, just ordinary power lines. You seem to misunderstand the point of my post. My post was written in support of egladil's, not the other way around. I argued that the pylons on egladil's picture were steel girders, and therefore catenary supports and not mains power supports, as bobingabout seemed to think.

[StopRightThere]

Instead two-tracked catenary like this:

Code: Select all

__________   __________
|        |  |         |
|        |  |         |
|       <wires>       |
|                     |
|                     |
|                     |
|  <tracks go here>   |

Maybe it would be better like this:

Code: Select all

___________________
<wire>   |<wire>
         |
         |
         |
         |
  <track>|<track>

[bobingabout]

Instead two-tracked catenary like this:

Code: Select all

__________   __________
|        |  |         |
|        |  |         |
|       <wires>       |
|                     |
|                     |
|                     |
|  <tracks go here>   |

Maybe it would be better like this:

Code: Select all

___________________
<wire>   |<wire>
         |
         |
         |
         |
  <track>|<track>

if you look at a picture posted earlier, in real life they do this:

Code: Select all

__________   __________
|        |  |         |
|        |  |         |
|       <wires>       |
|                     |
|                     |
|                     |
|  <tracks go here>   |

[habell]

if you look at a picture posted earlier, in real life they do this:

Code: Select all

__________   __________
|        |  |         |
|        |  |         |
|       <wires>       |
|                     |
|                     |
|                     |
|  <tracks go here>   |

Well, here in the Netherlands, they do it both ways. I guess it depends on the room they have.
But it's true it's mostly your lay-out.

[habell]

I've found some other (more recent) examples

[Brianetta]

Most modern lines have them outside the tracks, rather than between, for simple safety reasons. Maintaining high voltage catenary is dangerous enough without having to cross (and stand between) railway lines to do so.

[habell]

Another thing, I would like to see those catenary in OTTD ouside the track.

The only catenary now available is one left and then one right. Maybe realistic with one line, but not when there are two (or more) line next to each other.

[richk67]

Another thing, I would like to see those catenary in OTTD ouside the track.

The only catenary now available is one left and then one right. Maybe realistic with one line, but not when there are two (or more) line next to each other.

Many sections of the East Coast Main Line have catenary supported from a full width gantry, notably near York station. Nice and chunky

Other areas have a pole either side of the tracks, with a suspension wire between as seen in this pic.

[Brianetta]

The only catenary now available is one left and then one right. Maybe realistic with one line...

Not even. Most single line catenaries have the pylons down one side - again, for ease of maintenance. Access only has to be provided on one side of the track.

[ebik]

Hmm. and three (and more) line caternaries?

Like

Code: Select all

| |                                              | |
| |==============================================| |
| |           |           |           |          | |
| |           *           *           *          | |
| |                                              | |

These are used mainly on stations (not usable with ottd stations), but also before and after stations where are more than two lines.

[Born Acorn]

I've found some other (more recent) examples

I have reason to believe those examples aren't Heavy Rail. If you were meaning light rail, that type of catenary is common

[richk67]

Hmm. and three (and more) line caternaries?

Like

Code: Select all

| |                                              | |
| |==============================================| |
| |           |           |           |          | |
| |           *           *           *          | |
| |                                              | |

These are used mainly on stations (not usable with ottd stations), but also before and after stations where are more than two lines.

The East Coast Main Line section from York to Selby uses these, and thats 18 miles of countryside. Interesting to note that it doesnt cover the four tracks - there is an additional catenary on the left of the pic for the 4th track.

I remember the supports near Holgate Bridge in York were a full metal girder system, spanning about 6 tracks. I guess its so the sag was controlled when needing to pass under the bridge, and limited space for extra supports. Unfortunately I havent been able to find any views of the bridge with electrification.

[TrueBrain]

New binaries released

[Ch'marr]

New binaries released

Awesome... still missing the OS/X port, though. Sorry to seem pushy