But cold plasmas can be made using high electrical voltages.

ECONOMIST: Using a plasma torch to clean your teeth

Electrical frequencies and voltages drop as power line currents increase, necessitating automatic or manual interruption of loads (blackouts) to protect grids.

FORBES: Wind Energy's Overblown Prospects

But sometimes high voltages can cause electrical damage if components are not well-grounded.

CNN: Could lightning have brought down Air France plane?