IEC 60331-23 Tests for electric cables under fire conditions – Circuit integrity – Part 23: Procedures and requirements – Electric data cables

1 Scope

This part of IEC 60331 specifies the test procedure and gives the performance requirement, including a recommended flame application time, for electric data cables 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 covers electric data cables which have no rated voltage and are used for extra low voltage circuits.

2 Normative references

The following normative documents contain provisions, which, through reference in this text, constitute provisions of this part of IEC 60331. At the time of publication, the editions indicated
were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 60331 are encouraged to investigate the possibility of applying the most
recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
IEC 60269-3-1:1994, Low-voltage fuses – Part 3-1: Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications) – Sections I to IV
IEC 60331-11:1999, Tests for electric cables under fire conditions – Circuit integrity – Part 11: Apparatus – Fire alone at a flame temperature of at least 750 °C
IEC Guide 104:1997, The preparation of safety publications and the use of basic safety publications and group safety publications