Rich Hampel wrote:
They use AIR (NOT electric) motors in explosion application.

You must mean "TENV" .... totaly enclosed/non-vented: For 'hazardous'
atmospheres but certainly NOT for explosive atmospheres. Usually ONLY
pneumatic motors and controls are used in 'explosive' applications.


How do they make industrial electric motors explosion proof?
Impossible you say?


Obviously you have never seen TEXP motors. Check, for example, the
Westinghouse site. Handy if you want to mount a 150HP blower in your canoe.