What Is Aluminum Bx

Aluminum BX Cable is commonly used in electrical jobs and has 3-4 strands of copper inside of it. … If the magnet does stick make sure you separate the steel and the aluminum to get the most money for it. The inside wires are THHN Cable with a solid strand of bare bright copper wire inside.

What does BX cable mean?

Armored cable (AC) first appears in the 1903 NEC. There were originally two initial versions of armored cable. One was called “AX” and the other “BX,” with the “X” standing for “experimental.” The “BX” version became the one that eventually was produced, and hence the name “BX” became the common name.

Is BX wiring safe?

The actual name for it is “Armored Cable” or AC, but many people call it by its original trade name “Greenfield” or just BX. Modern BX wiring, properly installed, is safe. It is acceptable to the latest version of the National Electrical Code (2017 NEC Article 320).