What does the abbreviation SWA stand for in relation to electrical cables?

The abbreviation SWA stands for Steel Wire Armor, which refers to a specific type of electrical cable design that features a layer of steel wire that provides mechanical protection. SWA cables are commonly used in outdoor and underground installations where they may be subjected to physical damage. The steel wire layer enhances the cable's durability and resistance to impact, making it suitable for environments that may not be safe for standard cables.

This armor also helps provide additional safety benefits by helping to prevent potential water ingress, as the armor can act as a barrier. Understanding the role of the steel wire in SWA cables is essential for anyone working in electrical installations, particularly when selecting the appropriate type of cable for varying application needs.