ABSTRACT
USE-2 cable and photovoltaic (PV) wire are the two most common wiring methods for connecting PV modules to each other and to connecting PV modules to anything else. These wiring methods are commonly installed under PV modules and do get exposed to sunlight. PV installers in the past used batteries and liked to use flexible, fine-stranded cables, since they would not overstress battery terminals. PV arrays that track the sun do require flexible cables and installers of these cables should be aware of the requirements for using proper terminal procedures and equipment. Bipolar PV systems have a benefit of being able to be considered the voltage for the purposes of the Code as being voltage to ground rather than the maximum voltage between any two conductors. Connectors other than those covered by 690.32 Component Interconnections go here. These connectors are the primary connecters known to solar installers, including solar professionals typical MC4 connector or their microinverter cable.
