PV Wire is a single conductor cross-linked polyethylene (XLP/XLPE) Type Photovoltaic (PV) wire that can operate up to 600 V, 1000 V (1kV) or 2000 V (2kV) depending on Type, and up to 90°C in wet and dry locations. Photovoltaic Wire is used for interconnection wiring of grounded and ungrounded photovoltaic power systems at various voltage levels.