a 'high-voltage' [='dynamic, electric'] performance/performer
We measured the change in 'voltage' across the circuit.
a high-'voltage' area
(..) For the purpose of what? I think we're on top of a larger structure. This is some kind of a venting system. Do you hear something? I hear a humming. Like electricity. High voltage, maybe. Maybe. Maybe not. Scully... - Yeah? - Run! (..)1998 The X Files