On Sat, Nov 3, 2018 at 7:34 PM Mateusz Konieczny <[email protected]> wrote:
> Thanks! It was intended to be about insulation. > It now makes a lot more sense. However, the word "isolated" is present twice in the rationale. You probably ought to mention something that was brought up on this list: that some power lines have a cladding which is not considered to be an electrical insulator. It is unlikely most mappers could tell the difference. Yes, there are insulated cables. They're present on minor power lines for local distribution (they run along streets with feeds to houses along the street) near me. At some points the line between poles is a single insulated cable and at other points along the same street it switches to four, physically-separated, uninsulated conductors. It appears to me that the uninsulated stretches are older than the insulated ones and that as repairs become necessary they change to insulated cable. I suspect that on anything other than this type of local distribution any covering around the wire is cladding rather than insulation. For more details (only legally applicable to the UK but is probably indicative of practise in other countries) see http://www.hse.gov.uk/pubns/gs6.pdf -- Paul -- Paul
_______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
