Electric cables. Fire resistance test for unprotected electric cables (P classification)
Electric cables. Fire resistance test for unprotected electric cables (P classification)
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What is BS EN 50577 – Fire resistance test for unprotected electric cables about?
BS EN 50577:2015 Electric cables. Fire resistance test for unprotected electric cables (P classification) is the UK implementation of EN 50577:2015 . BS EN 50577:2015 specifies a test method to evaluate the maintenance of circuit integrity of electric cables which have intrinsic resistance to fire under fire conditions, in order to classify the electric cable according to EN 13501-3 . The test determines the survival time for circuit integrity of the electric cable when exposed to fire under the conditions of the EN 1363-1 standard time/temperature curve. This European Standard is used in conjunction with EN 1363-1 . This European Standard applies to electric power and control cables with rated voltage up to and including 600/1 000 V. The cable is tested in a standardized representative installation condition. The test does not assess the performance of the cable management system. This European Standard includes the field of direct application (Annex A) and rules for extended application of test results (EXAP) (Annex B). The selection of cables to be tested for the classification of a family is given in Annex B. In case the selection of the cables does not comply with Annex B, the test results are only applicable to th...
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