IEC 60331-21 Circuit integrity Test
IEC 60331-21 Circuit integrity Test – Standard
IEC 60331-21: Tests for electric cables under fire conditions-Circuit integrity-Part 21: Procedures and requirements-Cable of rated voltage up to and including 0.6/1.0 KV
IEC 60331-21 Circuit integrity Test – Abstract
IEC 60331-21 Specifies the test procedure and gives the performance requirement, including a recommended flame application time, for cables of rated voltages up to and including 0,6/1,0 kV required to maintain circuit integrity when subjected to fire under specified conditions. Describes the means of sample preparation, continuity checking arrangements, electrical testing procedure, method of burning cables and gives requirements for evaluating test results. It is intended to cover low voltage power cables and gives requirements for evaluating test results. It has the status of a horizontal standard in accordance with IEC Guide 104.
IEC 60331-21 Circuit integrity Test – Relative standards
IEC 60331-1 Tests for electric cables under fire conditions -- Circuit integrity -- Part 1: Test method for fire with shock at a temperature of at least 830℃ for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter not exceeding 20mm.
IEC 60331-2 Tests for electric cables under fire conditions - Circuit integrity - Part 2: Test method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter not exceeding 20 mm
IEC60331-11Tests for electric cables under fire conditions – Circuit integrity - Part11: Apparatus-Fire alone at a flame temperature of at least 750°C
IEC 60331-21: Tests for electric cables under fire conditions-Circuit integrity-Part 21: Procedures and requirements-Cable of rated voltage up to and including 0.6/1.0 KV
IEC 60331-31 Tests for electric cables under fire conditions - Circuit integrity - Part 31: Procedures and requirements for fire with shock - Cables of rated voltage up to and including 0,6/1 kV
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