What benefit is associated with using SWA cable?

Using SWA (Steel Wire Armoured) cable provides substantial benefits, particularly in terms of mechanical protection. The design of SWA cable includes a layer of steel wire armouring, which safeguards the internal conductors from physical damage. This feature makes it suitable for use in environments where the cabling might be exposed to harsh conditions, such as underground installations or areas prone to impact.

This mechanical protection is vital for ensuring the integrity and longevity of the cable, reducing the risk of accidental damage that could lead to electrical faults or outages. In contrast, while other options may present various advantages in different contexts, the distinctive armored structure of SWA specifically addresses the need for enhanced durability and safety in electrical installation applications.