What are these cables

[Alwayslearningelec]

Hello. Not sure what they are referring to here. The verbiage at one point clues me in then another portion I'm rethinking it.

 

[infinity]

Sounds like camlock cables for a portable generator.

POWER DISTRIBUTION - 400 amp camlock cables - Garrett McKenzie

4/0 Camlock Cables are used for temporary power solutions offering safe and reliable power connections from a generator, utility or other power source connecting to a transformer, distribution panel, temporary heating and cooling sources, desiccant dehumidifier, and heavy duty applications in...

www.garrettmckenzie.com

 

[zbang]

I think that's exactly what they are, available from a great many places.