Locomotive head lights and marker lights and their functions

[TEE1055]

For modelling reasons, i can`t find a better place for the following question:
How are the OSE-lighting rules for locomotives?
The equipment is very different, american-built ones have only one double-headlight and additional marker-/classification lamps (the MLW have the Canadian version of it). The european ones have three headlights.
Today, it seems the headlights are always on, but since when is it? Are the marker ligths in use? On pictures, they are partially on.
In the US-Rules, a white marker light indicated a extra train, a green a regulary train with second section behind it and a red light is for marking the rear end if the locomotive is the last vehicle of the train.
Thanks a lot for more explications!

[BarbaPanagos]

These are interesting questions!
I'd suggest that we have a new topic and farther discussion at the "Greek Stations, Facilities, Equipment & Miscellaneous" group

...

[christo]

New topic here.

christo.