IEC 60331-21:1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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
Hardcopy , PDF
English - French
28-04-1999
25-03-2025
Foreword
Introduction
1 Scope
2 Normative references
3 Definition
4 Sample preparation
5 Continuity checking arrangements
6 Test procedure
7 Performance requirement
7.1 Flame application time
7.2 Acceptance criteria
8 Retest procedure
9 Test report
Annex A (normative) Fuse characteristic curve
Figure 1 - Basic circuit diagram
IEC 60331-21:1999 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.
| Committee |
TC 20
|
| DevelopmentNote |
Supersedes IEC 60331 (03/2001) Stability Date: 2017. (09/2017)
|
| DocumentType |
Standard
|
| Pages |
19
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| PN IEC 60331-21 : 2003 | Identical |
| CEI 20-36/2-1 : 2002 | Identical |
| GOST IEC 60331-21 : 2011 | Identical |
| GOST R IEC 60331-21 : 2003 | Identical |
This standard has been withdrawn and is no longer current. No replacement edition is available.
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