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   Tube🌞Time (tubetime@mastodon.social)'s status on Friday, 02-Feb-2024 10:32:43 JST Tube🌞Time

   cross section of a high power electric car charging cable. the electric current is so high that the copper wires would overheat, but coolant flows through small tubes in the center of each wire.

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     Jeff Haluska (jhaluska@mastodon.social)'s status on Friday, 02-Feb-2024 10:33:40 JST Jeff Haluska

     in reply to

     @tubetime I find this solution both ingenious and insane.

     What are the smaller diameter wires for?

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     Tube🌞Time (tubetime@mastodon.social)'s status on Saturday, 03-Feb-2024 01:37:40 JST Tube🌞Time

     in reply to

     another angle. the smaller wires are used to negotiate the charging parameters.

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     Tube🌞Time (tubetime@mastodon.social)'s status on Saturday, 03-Feb-2024 01:42:55 JST Tube🌞Time

     in reply to

     • Emily Velasco

     @MLE_online i suspect they use a cable braiding machine. probably the same method used to make coaxial cables, only instead of a dielectric and center conductor, they pass the coolant tube into the machine. then lay down more than the usual 2-3 layers to build up the outer conductor.

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     Emily Velasco (mle_online@social.afront.org)'s status on Saturday, 03-Feb-2024 01:42:56 JST Emily Velasco

     in reply to

     @tubetime how are the hollow wires constructed? If they were basically little copper pipes, it would seem like they wouldn't allow the cable to be flexible enough to manipulate