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P256.50
Electric cables with extruded solid dielectric insulation for fixed installations (300/500 V to 1 900/ 3 300 V) — Part 1: Packaging and marking — Requirements
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1.1 This part of BOS 589 covers requirements for packing and marking, for single-core and multicore extruded solid dielectric insulated cables of rated operating voltage (U0/ U) in the range 300/500 V to 1 900/3 300 V, for use in fixed installations, as covered by BOS 589-2, and SANS 1507-3 to SANS 1507-6.
1.2 Specific requirements are given for a number of types of cables in common use. The types are as follows: single-core and multicore cables, armoured and unarmoured; multicore flat cables with and without an earth continuity conductor; cables with concentric conductors; cables with split concentric neutral and earth conductors; panel/cubicle cables, excluding flexible cables and cords; and insulated earth conductors. 1.3 This specification also covers cables that reduce the overall risk associated with fires.