Fire resistant cable to BS7629 suitable as fire alarm cable and emergency lighting cable. Plain annealed copper conductor to BS6360 1mm & 1.5mm solid conductors (class 1), 2.5mm stranded (class 2). Special Heat resistant insulation to BS7655. Tinned annealed copper earth conductor to BS6360. Aluminium mylar tape, LSZH sheath (low Smoke Zero Halogen).