François Lacombe <fl.infosrese...@gmail.com> writes: > Basically in power language, a line is not insulated while a cable actually > is.
A difficulty here is that mappers cannot tell a protective covering from insulation. I was at an open house of my power company recently and they had a mockup of a distribution line, of 8 kV phase to ground (as part of 13.8 kV 3-phase), connected to a transformer, and then 120/240 from the transformer to the meter - all very normal in the US. However, I was told that the protective covering on the 8 kV line is NOT insulation, even though it looks much like it. It's there for abrasion resistance to slow corrosion, and perhaps for added mechanical strength, but it does not meet insulation specs. So I don't see how we can make "insulated" a big deal in tagging, defining the top-level tag, rather than being a detail to add when known. That said, I fully support your notion of tagging voltage, so that low-voltage lines can be rendered only at extreme zooms, and to assume a line is low voltage (240V seems like a reasonable default assumption in terms of controlling rendering) if not tagged. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
