Stix, if you don't mind:
Types USE and USE-2 ? Indicates cable for underground installation including direct burial in the earth. Cable in sizes 4/0 AWG and smaller and having all conductors insulated is suitable for all of the underground uses for which Type UF cable is permitted by the NEC.
Multiconductor Type USE cable contains conductors with insulation equivalent to RHW or XHHW.
Multiconductor Type USE-2 contains insulation equivalent to RHW-2 or XHHW-2 and is rated 90?C wet or dry.
Single and multiconductor Types USE and USE-2 are not suitable for use in premises or aboveground except to terminate at the service equipment or metering equipment.
Both the insulation and the outer covering, when used, on single- and multiconductor Types USE and USE-2, are suitable for use where exposed to sun.
Ahhhhh. :smile: