IEC 60331-23:1999 pdf download – Tests for electric cables under fire conditions -ircuit integrity – Part 23: Procedures and requirements -Electric data cables

IEC 60331-23:1999 pdf download – Tests for electric cables under fire conditions -ircuit integrity – Part 23: Procedures and requirements -Electric data cables.
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 cab’es 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 foi’ use by unskilled persons (fuses mainly for household and similar applications) — Sectional to IV
IEC 60331-11:1999. Tests lot electric cables under lire conditions — Circuit integrity — Part 11:
Apparatus Fire alone at a flame temperature of at least 750 C
IEC Guide 104:1997. The preparation of salary publications and the use of basic safety publications and group safety publications
3 Definition
For the purpose of this part of IEC 60331, the following definition applies.
3.1
circuit integrity
ability to continue to operate In the designated manner whilst subjected to a specified flame source for a specified period of time
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 cab’es 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 foi’ use by unskilled persons (fuses mainly for household and similar applications) — Sectional to IV
IEC 60331-11:1999. Tests lot electric cables under lire conditions — Circuit integrity — Part 11:
Apparatus Fire alone at a flame temperature of at least 750 C
IEC Guide 104:1997. The preparation of salary publications and the use of basic safety publications and group safety publications
3 Definition
For the purpose of this part of IEC 60331, the following definition applies.
3.1
circuit integrity
ability to continue to operate In the designated manner whilst subjected to a specified flame source for a specified period of time.