Great Western Coffee Shop

All across the Great Western territory => The Wider Picture Overseas => Topic started by: Hal on September 19, 2021, 16:50:58



Title: Horses electrocuted on French railway line
Post by: Hal on September 19, 2021, 16:50:58
https://www.midilibre.fr/2021/09/19/pyrenees-orientales-deux-chevaux-selectrocutent-sur-la-ligne-du-train-jaune-a-bourg-madame-9800089.php

Midi Libre newspaper reports today that two horses have been electrocuted on the famous Ligne Jaune line in the French Pyrenees. Both succumbed to their injuries. Reasons for this unusual incident are under investigation.


Title: Re: Horses electrocuted on French railway line
Post by: Western Pathfinder on September 19, 2021, 20:08:07
Medium to well done avec frites se vows plait.


Title: Re: Horses electrocuted on French railway line
Post by: TaplowGreen on September 19, 2021, 21:15:41
Medium to well done avec frites se vows plait.

The humour is almost as poor as the French  :(


Title: Re: Horses electrocuted on French railway line
Post by: onthecushions on September 20, 2021, 06:35:34

Picture unstaffed stations with track level platforms and level foot crossings between the 850V third rail (supplied by hydroelectricity). Also open carriages on nice days, rather like the 1840's GWR third class. Who needs central locking?

As Mr Punch would say, "That's the way to do it!"

OTC


Title: Re: Horses electrocuted on French railway line
Post by: Electric train on September 24, 2021, 07:19:04
Electrocution is a very well know hazard for large four legged animals such as cattle and horses like this incident in 2011 at Newbury Race Course http://news.bbc.co.uk/sport1/hi/other_sports/horse_racing/9395743.stm

and that was only, if I remember correctly a 400 Volt cable fault, with a max of 230V to earth.

'Step potential' is the problem for these animals, the distance between front and hind legs means if there is electric current flowing through the earth the animal is stood on the electrical resistance of the animal will mean some current will flow through the animal which will effect the heart, diaphragm and nervous system

In the UK bridges over 25kV electrified lines will often have concrete apron leading up to the bridge and may have addition earthing measure to reduce the step potential, there can be problems in third rail area as well.

Be interesting to see if it is 'step potential' that was the issue Ligne Jaune line incident.



Title: Re: Horses electrocuted on French railway line
Post by: stuving on September 24, 2021, 10:18:02
Be interesting to see if it is 'step potential' that was the issue Ligne Jaune line incident.

It's more likely they stood on the third rail, or one did and the other ran the wrong way. This line and the St Gervais-Vallorcine one (via Chamonix) are both 850V third rail and run mostly in mountainous terrain where the line is unfenced. Even where it is fenced, it's often only a token effort. The two Google Earth views, of the outskirts of Chamonix and a Pyrennean valley (where there's a bit of a pixel shortage), show how accessible the track is. Stations improved more recently may have better fencing, but still have a foot crossing to the platform.

Both lines rely on protecting only those places where people can get at the line, and at stations use wooden planks as well. On St Gervais-Vallorcine the planks are above the rail and wider, on the Ligne de Cerdagne they are on both sides and only a little taller. There was a case not long ago on the Ligne de Cerdagne of a child touching the rail and getting burnt, but not seriously hurt (so presumably the leg that touched was stood on the ground at the time). This was at a point where an unofficial footpath had been made to get to an (equally off-limits) open-air hot water pool made suddenly well-known by social media. The local "public outrage" following called mainly for fencing (railway or pool), a new footpath, or closing the parking on the main road nearby.

That said, I could find only one recent report of a human fatality, so presumably this approach is quite effective.



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