[Tagging] Power=cable for low voltage lines?

[Joseph Eisenberg]

The team at Openstreetmap-carto (the "standard" map style) recently added
rendering for power=cable which are specifically tagged as being overground
or overhead (on the ground or on poles).

Most power=cable are high-voltage underground or underwater power cables,
but some are insulated cables above-ground.

Now it's can be seen that in some places, eg France, power=cable has been
used for minor distribution lines (220 volt?) bringing power to individual
buildings.

Eg 1. https://www.openstreetmap.org/#map=18/47.95900/6.80918
2. https://www.openstreetmap.org/way/512818816

Perhaps these should be tagged as power=minor_line, but the wiki says these
are uninsulated, hence the confusion. And the wiki says "Use power=cable
for any voltage"!

Should the wiki page for power=minor_line be changed to mention the
possibility that these lines may be insulated in some places? Should the
power=cable page state that this is only intended for higher-voltage lines?

-Joseph
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