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NF EN 61620 : 1999

Current
Current

The latest, up-to-date edition.

INSULATING LIQUIDS - DETERMINATION OF THE DIELECTRIC DISSIPATION FACTOR BY MEASUREMENT OF THE CONDUCTANCE AND CAPACITANCE - TEST METHODS
Published date

01-12-2013

AVANT-PROPOS
1 Domaine d'application
2 Références normatives
3 Définitions
4 Principe de fonctionnement
5 Appareillage
6 Echantillonnage
7 Etiquetage
8 Procédure
9 Expression des résultats
10 Rapport d'essais
11 Fidélité
Annexe A (normative) Procédure exhaustive de nettoyage
                     des cellules d'essai
Annexe B (normative) Procédure simplifiée de nettoyage
                     des cellules d'essai consacrées aux
                     mesures sur un seul type de liquide
Annexe C (informative) Considération générales sur les
                       facteurs influençant la conduction
                       des liquides
Annexe D (informative) Bibliographie
Annexe ZA - Référence normatives à d'autres publications
            internationales avec les publications
            européennes correspondantes

Covers a procedure for the simultaneous measurement of conductance G and capacitance C, which enables the calculating of the dielectric dissipation factor tan of insulating liquids. Applicable both to unused and inservice insulating liquids, in transformers and other electrical equipment.

DevelopmentNote
Indice de classement: C27-237 Supersedes NFC 27 237 (09/2005)
DocumentType
Standard
PublisherName
Association Francaise de Normalisation
Status
Current
Supersedes

Standards Relationship
IEC 61620:1998 Identical
DIN EN 61620 : 1999 Identical
BS EN 61620:1999 Identical
NBN EN 61620 : 1999 Identical
EN 61620:1999 Identical
SN EN 61620 : 1999 Identical
UNE-EN 61620:1999 Identical
I.S. EN 61620:1999 Identical

NF EN 60247 : 2004 INSULATING LIQUIDS - MEASUREMENT OF RELATIVE PERMITTIVITY, DIELECTRIC DISSIPATION FACTOR (TAN DELTA) AND D.C. RESISTIVITY

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method
IEC 60475:2011 Method of sampling insulating liquids
ISO 5725-4:1994 Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method
IEC 60248:1984 Dimensions of planchets used in nuclear electronic instruments
NFC 27 41975 : 1975 METHOD OF SAMPLING LIQUID DIELECTRICS
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
NFC 27 210 : 1979 MEASUREMENT OF RELATIVE PERMITTIVITY, DIELECTRIC DISSIPATION FACTOR AND D.C. RESISTIVITY OF INSULATING LIQUIDS

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