60331-21-1999 Essais de Cables Electriques Soumis Au Feu - Integrite des Circuits - Partie 21: Procedures et Prescriptions - Cables de Tension Assignee Jusque et y Compris 0@6/1@0 kV (Edition 1.0)
Tests for Electric Cables under Fire Conditions - Circuit Integrity - Part 21: Procedures and Requirements - Cables of Rated Voltage up to and Including 0@6/1@0 kV (Edition 1.0)
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This part of IEC 60331 specifies the test procedure and gives the performance requirement@ including a recommended flame application time@ for cables of rated voltage up to and including 0@6/1@0 kV required to maintain circuit integrity when subjected to fire under specified conditions.It describes the means of sample preparation@ continuity checking arrangements@ electrical testing procedure@ method of burning the cables and gives requirements for evaluating test results.It is intended to cover low voltage power cables@ and control cables with a rated voltage.