Specifies the requirements for limited fire hazard wires and cables, with cores up to conductors of 10 mm[2] cross-sectional area. It shall be suitable for use on electric power and communications circuits with a potential not exceeding 600 V AC RMS, 800 V DC between cores, or between cores and the surrounding structure, or between cores and earthed screen(s) included in the cable, at frequencies up to 400 Hz.