NF C26-304

NF C26-304

December 1990
Standard Cancelled

Determination of thermal endurance properties of electrical insulating materials. Ageing ovens. Section 1 : single-chamber ovens.

Cette norme définit les exigences minimales concernant les étuves à une seule chambre servant à évaluer l'endurance thermique de l'isolation électrique.

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Main informations

Collections

National standards and national normative documents

Publication date

December 1990

Number of pages

10 p.

Reference

NF C26-304

ICS Codes

29.035.01   Insulating materials in general

Classification index

C26-304

Print number

1 - 01/12/1990

International kinship

IEC 60216-4-1:1990
Sumary
Determination of thermal endurance properties of electrical insulating materials. Ageing ovens. Section 1 : single-chamber ovens.

Cette norme définit les exigences minimales concernant les étuves à une seule chambre servant à évaluer l'endurance thermique de l'isolation électrique.
Replaced standards (1)
NF C26-205/A2
September 1981
Standard Cancelled
Détermination des propriétés d'endurance thermique des matériaux isolants électriques. Additif 2 à la norme NF C 26-205 de novembre 1974.

Standard replaced by (1)
NF EN 60216-4-1
August 2006
Standard Current
Electrical insulating materials - Thermal endurance properties - Part 4-1 : ageing ovens - Single-chamber ovens

Le présent document traite des étuves conçues pour fonctionner sur tout ou partie de la gamme de températures allant de 20 °C au-dessus de l'ambiante à 500 °C.

Table of contents
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  • AVANT-PROPOS
    3
  • 1. Domaine d'application
    4
  • 2. Définitions
    5
  • 2.1 Taux de ventilation
    5
  • 2.2 Fluctuation de température
    5
  • 2.3 Gradient de température
    5
  • 2.4 Variation de température
    5
  • 2.5 Constante de temps
    5
  • 3. Exigences de construction
    5
  • 4. Méthodes d'essais et exigences de performance
    6
  • 4.1 Taux de ventilation
    6
  • 4.2 Variation de température
    8
  • 4.3 Constante de temps
    9
  • 4.4 Procès-verbal
    9
  • 5. Instructions pour le contrôle en service par l'utilisateur
    10
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