Is Bx Cable Legal

BX is accepted by the National Electrical Code (NEC). Older BX cables without an internal bonding strip are not accepted by NEC.

Can BX cable be used as ground?

In the case of old steel-clad armored cable (BX), it’s still legal to use the metal shield as a ground, but I wouldn’t do it. … However, you may not be able to get the GFCI breaker to hold, because old circuits tend to have some ground leaking.

What is BX wiring?

BX wiring (also known as armored cable) is the 2nd generation of wiring used in homes. It first appeared in the 1903 National Electrical Code (NEC) book. … BX wiring was used until the late 1940s, when it was replaced by early Romex (non-metallic sheathed cable).