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enter image description here I found this in the USS Yorktown aircraft carrier (it’s open for public tours)

I know it’s a 3 phase connector of some kind, but what type of plug connects to it? Is it a nationwide standard or something specific for the ship?

In addition to the 3 phases, there’s also 3 separate holes at the top of for ground

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  • $\begingroup$ Did you get a pic of the info on the brass plate behind? That may have helped. $\endgroup$
    – Solar Mike
    Mar 20, 2023 at 14:24
  • $\begingroup$ @SolarMike I did not. But IIRC it said something along the lines of ‘Connected to random jumble of numbers and letters $\endgroup$
    – rsn
    Mar 20, 2023 at 14:28
  • $\begingroup$ Weel, it starts with "Casualty po.." and "BHD Rise..." $\endgroup$
    – Solar Mike
    Mar 20, 2023 at 14:30
  • $\begingroup$ @SolarMike causality power terminal… and BHD riser. Sorry that’s all I have :/ $\endgroup$
    – rsn
    Mar 20, 2023 at 14:43
  • $\begingroup$ well one of us can't read the brass plate... "Causality..."? $\endgroup$
    – Solar Mike
    Mar 20, 2023 at 15:08

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enter image description here

The surface Navy had (has?) a whole set of casualty electrical power systems for use in restoring power. This is part of those systems. I say surface Navy because I sure don't remember this on my submarine.

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