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...and what about AC/DC? (not the Rock band!!) --RalpH himself 20:05, 10 April 2009 (UTC)

...or Hz on AC lines? --Skippern 16:53, 11 April 2009 (UTC)

Found it: frequency=* (see Map_Features#Power), and set 0 for DC. --RalpH himself 08:15, 15 April 2009 (UTC)

...and what about 3-phase? This really matches nowhere, although I personally would make it part of the frequency (which is closest of all), like 50(3) for 50Hz 3-phase. Exact syntax has to be figured out, maybe a new tag introduced. --RalpH himself 08:15, 15 April 2009 (UTC)

Unused lines

Hello, what about lines which has been switched off in past and are not used currently? I propose the following tagging: voltage=0/former_voltage e.g. voltage=0/25000. The zero is supposed to mean, that there is no voltage any more on the line. What's your opinion? --DB1BMN 09:09, 22 May 2009 (UTC)