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IEC 60331-1-ed.2.0
Tests for electric cables under fire conditions - Circuit integrity - Part 1: 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 exceeding 20 mm
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STANDARD published on 28.3.2018
The information about the standard:
Designation standards: IEC 60331-1-ed.2.0
Publication date standards: 28.3.2018
SKU: NS-818732
The number of pages: 27
Approximate weight : 81 g (0.18 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
CablesElectrical engineering in generalIgnitability and burning behaviour of materials and products
Annotation of standard text IEC 60331-1-ed.2.0 :
IEC 60331-1:2018 specifies the test method for cables which are required to maintain circuit integrity when subject to fire and mechanical shock under specified conditions. This document is applicable to cables of rated voltage not exceeding 600 V/1 000 V, including those of rated voltage below 80 V, metallic data and telecom cables and optical fibre cables. It is intended for use when testing cables of greater than 20 mm overall diameter. Cables of smaller diameter are intended to be tested using the apparatus, procedure and requirements of IEC 60331-2. This document includes details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to electric power and control cables with rated voltage up to and including 600 V/1 000 V. Details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to metallic data and telecom cables and optical fibre cables are not given by IEC 60331-1. Although the scope is restricted to cables with rated voltage up to and including 0,6/1,0 kV, the procedure can be used, with the agreement of the manufacturer and the purchaser, for cables with rated voltage up to and including 1,8/3 (3,3) kV, provided that suitable fuses are used. Annex A provides the method of verification of the burner and control system used for the test. Requirements are stated for an identification that may optionally be marked on the cable to signify compliance with this document. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. The significant technical changes with respect to the previous edition are as follows: – extension of the scope to include metallic data and telecom cables and optical fibre cables, although details for the specific point of failure, continuity checking arrangement, test sample, test procedure and test report relevant to metallic data and telecom cables and optical fibre cables are not given by IEC 60331-1; – improved description of the test environment; – modified steel test ladder with two extra vertical elements to accommodate the modified testing of single core cables without concentric metal layer and the testing of cables with a bending radius in normal use larger than approximately 400 mm; – mandatory use of mass flow meters/controllers as the means of controlling accurately the input flow rates of fuel and air to the burner; – improved description of the information to be included in the test report. This document has the status of a group safety publication in accordance with IEC Guide 104. LIEC 60331-1:2018 specifie la methode dessai pour les cables necessaires afin de conserver lintegrite du circuit quand ils sont soumis a un feu et a des chocs mecaniques dans des conditions specifiees. Le present document sapplique aux cables de tension assignee au plus egale a 600 V/1 000 V, y compris les cables de tension assignee inferieure a 80 V, les cables metalliques de donnees et de telecommunications ainsi que les cables a fibres optiques. Elle est prevue pour etre utilisee pour soumettre a lessai des cables de diametre externe superieur a 20 mm. Pour les cables de diametre plus petit, lappareillage, la procedure et les exigences de lIEC 60331-2 sont utilises. Le present document comprend des details concernant le point specifique de defaillance, le dispositif de controle de la continuite, lechantillon dessai, la procedure dessai et le rapport dessai pertinents pour les cables electriques de puissance et de commande de tension assignee au plus egale a 600 V/1 000 V. Les details concernant le point specifique de defaillance, le dispositif de controle de la continuite, lechantillon dessai, la procedure dessai et le rapport dessai pertinents pour les cables metalliques de donnees et de telecommunications ainsi que les cables a fibres optiques ne sont pas fournis dans lIEC 60331-1. Bien que le domaine dapplication soit limite aux cables de tension assignee au plus egale a 0,6/1,0 kV, par accord entre le fabricant et lacheteur, la procedure peut etre utilisee pour des cables de tension assignee au plus egale a 1,8/3 (3,3) kV a condition dutiliser des fusibles appropries. LAnnexe A fournit la methode de verification du bruleur et le systeme de controle utilise pour lessai. Les exigences sont indiquees pour une identification pouvant etre eventuellement apposee par marquage sur le cable pour signifier sa conformite a la presente norme. Cette deuxieme edition annule et remplace la premiere edition parue en 2009. Elle constitue une revision technique. Les modifications techniques majeures par rapport a ledition precedente sont les suivantes: – extension du domaine dapplication aux cables metalliques de donnees et de telecommunications et aux cables a fibres optiques, bien que les informations concernant le point specifique de defaillance, le dispositif de controle de la continuite, lechantillon dessai, la procedure dessai et le rapport dessai pertinents pour les cables metalliques de donnees et de telecommunications et pour les cables a fibres optiques ne soient pas fournis dans lIEC 60331-1; – amelioration de la description de lenvironnement dessai; – modification de lechelle dessai en acier avec deux elements verticaux supplementaires afin deffectuer les essais modifies sur des cables unipolaires sans couche de metal concentrique et les essais sur des cables de rayon de courbure en utilisation normale superieur a environ 400 mm; – utilisation obligatoire de debitmetres massiques/regulateurs comme moyens precis de controle des debits dentree de combustible et dair au bruleur; – amelioration de la description des informations a inclure dans le rapport dessai.
