THIS IS TRUE! A new company (first and last big job) wired a Kwickset doorknob factory down here and thought it would be easier to keep each set of phase feeders in their own conduit. Blew the whole back wall out of the plant!
And yes this is caused by the magnetic field that is generated by the conductor as current flows through it.
[This message has been edited by arseegee (edited 08-27-2002).]
