Mildly Interesting

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This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.

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How do they know which is which? (i.imgur.com)

submitted 10 months ago* (last edited 10 months ago) by csm10495@sh.itjust.works to c/mildlyinteresting@lemmy.world

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Serious question.

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[–] bobs_monkey@lemm.ee 20 points 10 months ago* (last edited 10 months ago)

Power linemen have phasing sticks to determine which phase is which.

Datacom wires are, to start, much lower on the pole than power cables, and have markings on the cable jacket to determine what the cable actually is (fiber, coax, tel, etc). Beyond that, there is usually some tagging at each service point.