Cable, BX

Definition

BX cable, also known as armored cable, is a type of indoor wiring that consists of two or more insulated wires protected by a wound, galvanized steel strip cover. The metal winding forms a flexible tube that provides protection similar to rigid conduit.

Purpose

BX cable is used to provide robust protection for electrical wiring in indoor environments. The armored exterior protects the internal conductors from physical damage and environmental factors, ensuring reliable and safe electrical transmission.

Examples of Use

1. Residential Wiring: Used in homes for circuits requiring extra protection, such as in walls and ceilings.
2. Commercial Buildings: Installed in office buildings where wiring needs to be flexible yet protected from physical damage.
3. Industrial Applications: Employed in light industrial settings where wiring needs to withstand occasional mechanical impact.

Related Terms

• Armored Cable (AC): Another term for BX cable, emphasizing its protective armored exterior.
• Rigid Conduit: A metal or plastic tube used to protect and route electrical wiring.
• Non-Metallic Sheathed Cable (NM): A type of electrical cable without the armored protection, commonly known as Romex.

Notes

BX cable should be properly grounded to prevent electrical hazards. It's often preferred over non-metallic sheathed cables in environments where extra protection is necessary due to potential physical damage.