IEC 60331-21 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
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IEC 60331-21 Document Information:
Title
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
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
International Electrotechnical Commission
Publication Date:
Apr 1, 1999
Scope:
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.
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