36m is 2.1Kg, 11m is 600g. The 36m piece is actually 36.5m but the outer has a cut 0.5m from the end. Pair 'A' Wire 'B' Wire. These look unused. Multicore pairs in cables manufactured BS5308 Part 1 cables or PAS5308 Part 1 are unscreened and identified by insulation colour in the following sequence.