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NF EN 61857-1 : 2009

Current
Current

The latest, up-to-date edition.

ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 1: GENERAL REQUIREMENTS - LOW-VOLTAGE
Published date

01-12-2013

Publisher

Association Francaise de Normalisation

AVANT-PROPOS
INTRODUCTION
1 Domaine d'application
2 Références normatives
3 Termes et définitions
4 Information générale
  4.1 Vue d'ensemble de la procédure d'essai
  4.2 Base de l'évaluation et de la qualification
  4.3 Exigences particulières
5 Eprouvettes
  5.1 Généralités
  5.2 Description
  5.3 Nombre d'éprouvettes
6 Procédures d'essai
  6.1 Généralités
  6.2 Essais de sélection préliminaire
  6.3 Vieillissement thermique
  6.4 Contraintes mécaniques de prédiagnostic
  6.5 Autre conditionnement de prédiagnostic
  6.6 Exposition à l'humidité
  6.7 Essais de diagnostic diélectrique
  6.8 Autres essais de diagnostic
7 Analyse, compte rendu et classification
  7.1 Critère de fin de vie
  7.2 Méthode de détermination de la durée de vie
  7.3 Extrapolation des données
  7.4 Compte rendu des résultats
Bibliographie
Annexe ZA (normative) Références normatives à d'autres
          publications internationales avec les publications
          européennes correspondantes

Defines a general test method for the thermal evaluation and qualification of electrical insulation systems (EIS) and determines a method for comparing the performance of a candidate EIS to a reference EIS. Applies to existing or proposed EISs used for electrotechnical products which have an input voltage not in excess of 1000 V when the thermal factor is the dominant ageing factor.

DevelopmentNote
Indice de classement: C26-310-1. PR NF EN 61857-1 July 2003. (07/2003) Supersedes NFC 26 310-1. (06/2005) PR NF EN 61857-1 March 2009. (03/2009)
DocumentType
Standard
PublisherName
Association Francaise de Normalisation
Status
Current
Supersedes

Standards Relationship
UNE-EN 61857-1:2009 Identical
SN EN 61857-1 : 1999 Identical
IEC 61857-1:2008 Identical
EN 61857-1:2009 Identical
DIN EN 61857-1 : 2009 Identical
I.S. EN 61857-1:2009 Identical
NBN EN 61857-1 : 2009 Identical
BS EN 61857-1:2009 Identical

NF EN 61857-22 : 2009 ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 22: SPECIFIC REQUIREMENTS FOR ENCAPSULATED-COIL MODEL - WIRE-WOUND ELECTRICAL INSULATION SYSTEM (EIS)
NF EN 61858 : 2009 ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS

NF EN 60085 : 2008 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
NF EN 60216-5 : 2008 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 5: DETERMINATION OF RELATIVE THERMAL ENDURANCE INDEX (RTE) OF AN INSULATING MATERIAL
IEC 60216-4-1:2006 Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens
IEC 60493-1:2011 Guide for the statistical analysis of ageing test data - Part 1: Methods based on mean values of normally distributed test results
IEC 60505:2011 Evaluation and qualification of electrical insulation systems
NF EN 60216-4-1 : 2006 ELECTRICAL INSULATING MATERIALS - THERMAL ENDURANCE PROPERTIES - PART 4-1: AGEING OVENS - SINGLE-CHAMBER OVENS
IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
NF EN 60505 : 2011 EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATION SYSTEMS
NFC 26 202 : 1975 INSULATING MATERIALS STATISTICAL ANALYSIS OF AGEING TEST DATA
IEC 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material

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