BS 8436:2011 pdf download – Electric cables – Specification for 300/500 V screened electric cables having low emission of smoke and corrosive gases when affected by fire, for use in walls, partitions and building voids – Multicore cables

BS 8436:2011 pdf download – Electric cables – Specification for 300/500 V screened electric cables having low emission of smoke and corrosive gases when affected by fire, for use in walls, partitions and building voids – Multicore cables 3 Terms and definitions For the purposes of this British Standard the terms and definitions given in IEC 60050-461 and the following apply. 3.1 cable manufacturer organization that has the capability to both produce and control the conformity of cable made to this standard NOTE See Clause 11.1, a) for information on marking the cable with the cable manufacturer’s name and identifier. 3.2 let-through energy, I 2 t energy let-through value of a device, measured in amperes squared seconds (A 2 s) 3.3 routine tests, R tests made on all production cable lengths to demonstrate their integrity 3.4 sample tests, S tests made on samples of completed cable, or components taken from a completed cable, adequate to verify that the product meets the design requirements 3.5 type tests, T tests made before supplying, on a general commercial basis, a type of cable covered by this standard, in order to demonstrate satisfactory performance characteristics to meet the intended application NOTE These tests are of such a nature that after they have been made, they need not be repeated unless changes are made in the cable material, design or type of manufacturing process, which might change the performance characteristics. 3.6 values 3.6.1 approximate value value which is only indicative NOTE Values described as “approximate” do not constitute requirements to be checked by measurement. 3.6.2 nominal value value by which a quantity is designated NOTE Nominal values usually give rise to values to be checked by measurements taking into account specified tolerances. 3.7 voltages 3.7.1 maximum voltage, U m maximum sustained power-frequency voltage between phase conductors for which the cable is suitable 3.7.2 rated voltage, U nominal power-frequency voltage between phase conductors for which the cable is suitable 3.7.3 rated voltage, U o nominal power-frequency voltage between conductor(s) and earth for which the cable is suitable 4 Voltage designation The cables shall be designated by the rated voltages U o and U, expressed in the form U o /U. The rated voltage recognized for the purpose of this British Standard shall be 300/500 V. 5 Conductors The conductors shall conform to BS EN 60228, class 1, 2 or 5. The insulated conductors shall be plain...