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IEC 60331-25 Ed. 1.0 b:1999
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IEC 60331-25 Ed. 1.0 b:1999 Tests for electric cables under fire conditions - Circuit integrity - Part 25: Procedures and requirements - Optical fibre cables
standard by International Electrotechnical Commission, 04/23/1999
Full Description
Specifies the test procedure and gives the performance requirement, including a recommended flame application time, for optical fibre cables required to maintain circuit integrity when subjected to fire under specified conditions. Describes the means of sample preparation, continuity checking arrangements, optical testing procedure, the method of burning the cables and gives requirements for evaluating test results. Covers electric data cables which have no rated voltage and are used for extra low voltage circuits. Has the status of a group safety publication in accordance with IEC Guide 104.
M00007142
2021-02-22
New product
IEC 60331-25 Ed. 1.0 b:1999 Tests for electric cables under fire conditions - Circuit integrity - Part 25: Procedures and requirements - Optical fibre cables
standard by International Electrotechnical Commission, 04/23/1999