For mains, sub-mains, and sub-circuits unenclosed, in conduit, buried directly, or in underground ducts for buildings and industrial plants where not exposed to mechanical damage, AS/NZS 5000.1, Max Temp 90°C
For mains, sub-mains, and sub-circuits unenclosed, in conduit, buried directly, or in underground ducts for buildings and industrial plants where not exposed to mechanical damage, AS/NZS 5000.1, Max Temp 90°C