An appropriate wiring method for an underground feed to a remote building would be a:
A) metal conduit installation
B) trunking and tray installation
C) PVC cables
D) PVC/SWA cables

Question

Quizplus · Accepted Answer

PVC/SWA cables (PVC insulated steel wire armored cables) are the best choice for underground feeds to remote buildings because they have good resistance to moisture, chemicals, and physical damage. The steel wire armor provides extra protection against mechanical damage, making them suitable for direct burial installations. Metal conduits can be used, but they are more expensive and require more labor to install. Trunking and tray installations are not recommended for underground installations as they are only suitable for indoor use. PVC cables may not be strong enough to withstand the harsh conditions of underground installations, making them less desirable for this purpose.

An Appropriate Wiring Method for an Underground Feed to a Remote