• I.S. EN 50243:2002

    Current The latest, up-to-date edition.

    OUTDOOR BUSHINGS FOR 24 KV AND 36 KV AND FOR 5 KA AND 8 KA, FOR LIQUID FILLED TRANSFORMERS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2002

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

    Add To Cart

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Definitions
    4 Requirements
      4.1 Application
      4.2 Standard values of highest voltage for
          equipment (U[m])
      4.3 Standard values of rated current (l[r])
      4.4 Compliance
      4.5 Common dimensions and creepage distances of
          bushings type A and type B
      4.6 Parts list according to bushing type A
      4.7 Parts list according to bushing type B
    Annex A (normative) Detail drawings of components
    A.1 Insulator (Item N degree 1)
    A.2 Conductor tube (Item N degree 2)
    A.3 Upper cap (Item N degree 4)
    A.4 Lower cap (Item N degree 6)
    A.5 Nut (Item N degree 3)
    A.6 Sealing ring (Item N degree 5)
    A.7 Flat gasket (Item N degree 9)
    A.8 Flat gasket (Item N degree 18)
    A.9 Clamping ring (Item N degree 16)
    A.10 Interlayer (Item N degree 13)
    A.11 Compression ring (Item N degree 11)
    A.12 Retaining ring (Item N degree 12)
    A.13 Flat gasket (Item N degree 10)
    A.14 Clamping paw (Item N degree 17)

    Abstract - (Show below) - (Hide below)

    Applies to ceramic insulated outdoor bushings for highest voltages for equipment of 24 kV and 36 kV, with rated currents of 5 kA and 8 kA and frequencies from 15 Hz up to 60 Hz for insulating liquid filled transformers and gives dimensions to ensure interchangeability and adequate mounting of bushings.

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

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current
    Superseded By

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

    ISO 1101:2017 Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form, orientation, location and run-out
    EN 60672-3:1997 Ceramic and glass-insulating materials - Part 3: Specifications for individual materials
    ISO 2768:1973 Permissible machining variations in dimensions without tolerance indication
    ISO 1302:2002 Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation
    ISO 286-2:2010 Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
    ISO 261:1998 ISO general purpose metric screw threads General plan
    HD 329 : 200S1 TESTS ON HOLLOW INSULATORS FOR USE IN ELECTRICAL EQUIPMENT
    • 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