e57 already gave you some good advice so this is just a side note. [Linked Image]

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This will be isolated from the compressor by a 2 ft section of hydraulic hose

I doubt highly this will electrically isolate the line from the compressor.

If it is truly hydraulic line it will carry significant current.

Hydraulic lines have steel braid inside to contain the high pressures involved.

Bob Badger
Construction & Maintenance Electrician
Massachusetts