ECN Forum Forums Code Related Discussion NEC & other Code issues BX..... How did it get its name?

I've also heard that it was an abbreviation for "Bronx", because that is where it was produced, though I didn't know GE manufactured it.

I always think of BX as that ancient "armored cable" with the cloth-insulated conductors and no equipment ground, though I know a lot of folks use the terms "AC" and "BX" interchangeably.

-John