Skip to content
Please enter a keyword to search

  • BS EN 61620:1999

    Current The latest, up-to-date edition.

    Insulating liquids. Determination of the dielectric dissipation factor by measurement of the conductance and capacitance. Test method

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-04-1999

    Publisher:  British Standards Institution

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Definitions
    4 Principle of operation
    5 Apparatus
    6 Sampling
    7 Labelling
    8 Procedure
    9 Expression of results
    10 Test report
    11 Precision
    Annex A (normative) Exhaustive cleaning procedure for the
    test cells
    Annex B (normative) Simplified cleaning procedure for test cells
    devoted to only one type of liquid
    Annex C (informative) General considerations on the factors
    influencing the conduction of liquids
    Annex D (informative) Bibliography
    Annex ZA Normative references to international publications with
    their corresponding European publications

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee GEL/10
    Development Note Supersedes 96/207087 DC. Also numbered as IEC 61620. (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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
    IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
    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 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
    IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    IEC 60867:1993 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
    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
    IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
    IEC 60963:1988 Specification for unused polybutenes
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective