... , flame-retardant, and NC is low-smoke, halogen-free, flame-retardant, fire-resistant.2. Operating Characteristics1) Rated Voltage (A.C.): Uo/U ... inner sheathed, bare copper wire braided, armored, low-smoke, halogen-free, flame-retardant, fire-resistant, shipboard power cable (NC) 0.6/1kV, XLPE Insulated Shipboard Power Cable