Talk:Key:railway:electricity
Clarification of meaning and potential duplication
The definition given of railway:electricity=joint just seems to refer to a switch which we already have under the power=catenary_mast tagging scheme under 2.4 Electrical equipment.
However, I believe you're actually referring to the physical component or arrangement that actually isolates between to sections in 3rd rail of OLE, and so the page should be worded as such. On 3rd rail this is naturally just a gap in the rail, and for overhead line this is either an insulating component stitched into the contact and catenary wires, or an overlap between different wire runs where there is not an electrical connection.
Lastly, I'm not sure we need to have railway:electricity:ref=* and railway:electricity:name=* when there are already well established tags for the reference plate of an OLE mast with power=catenary_mast+ref=* and for switch numbers there is power=catenary_mast+switch:ref=*.
Also I don't see why we need to have the definition of railway=power_supply to mean a plug socket. I don't think anyone uses that tag that way and it doesn't make sense why anyone would either because you can just use the normal power=socket