'bonding plan' or 'track insulation plan' ?

[reuben]

hi signal professional:

I have one question as follow:

1. Does anyone know what is 'bonding plan' or 'track insulation plan' ?
does anyone have a copy or example of bonding plan or track insulation plan, that i can at least know what it looks like



thanks

Hi

A bonding plan shows a railway as two lines (one for each rail), whereas a signalling plan shows it as one. All electrical connections and insulations in the rails, for track circuit and electric traction purposes are shown. It forms a full spec for track circuit, electric traction return and insulated rail joints.

The attached document gives you an example, not necessarily easy to follow!

I haven't heard specifically of a track insulation plan - I would guess this could be the same but with only insulated rail joints shown - ie an electrical spec for the track construction only.

cheers

Reuben