> malfunctioning solid state controllers that provided 120 Vac to "Exit
> Lamps" from a 277 Vac main in all the international airports
> throughout the
> free world! Prior to this project, I didn't know that the typical
> international airport has 2,000 "Exit Lamps".

What an odd voltage!  I design stuff for seaports all over the world but
I have never run into 277Vac.  Is this some derivative of airplane
wiring?

Sherpa Doug

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