High tension wires? What does Wikipedia have to say about that? First its a link to a music album. Second, it’s a redirect to overhead power line. Well, that sure is weird, surely it reflects one of the biases of Wikipedia somehow.
20180816/https://en.wikipedia.org/wiki/High_Tension_Wires
20180816/https://en.wikipedia.org/wiki/Overhead_power_line
Strain insulators, insulators that can accept tension or compression force, were a later invention. Very early power lines couldn’t use higher voltages because of they lack of strain insulators.
20180816/https://en.wikipedia.org/wiki/Strain_insulator
What is particularly interesting about insulator mention here, something that I didn’t think too much about before. Rain is a particular risk to the efficiency of the insulators, so they must have special mechanical designs that sweep away as much water as possible, minimizing the risk of major shorts. However, the risk is still there, of course simply because of the water washing cover.
Interesting. Harse opposition to building a new powerline, but ultimately the guerrilla tactics failed.
20180816/https://en.wikipedia.org/wiki/CU_project_controversy
Interesting. Wireless powerline sensor. So, sometimes additional sensors are placed on the powerlines directly, not just on the utility poles. Power might be scavenged from the powerline, and data might be transmitted on the powerline too, which is then intercepted by the utility pole, that then has a larger antenna for remote communications.
20180816/https://en.wikipedia.org/wiki/Wireless_powerline_sensor
20180816/https://upload.wikimedia.org/wikipedia/commons/f/f2/WirelessPowerline_Sensor.JPG