• BS EN IEC 60071-2:2018

    Current The latest, up-to-date edition.

    Insulation co-ordination Application guidelines

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  09-05-2018

    Publisher:  British Standards Institution

    Add To Cart

    Scope - (Show below) - (Hide below)

    IEC 60071-2:2018 is now available as IEC 60071-2:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60071-2:2018 constitutes application guidelines and deals with the selection of insulation levels of equipment or installations for three-phase electrical systems. It gives guidance for the determination of the rated withstand voltages for ranges I and II of IEC 60071-1 and to justify the association of these rated values with the standardized highest voltages for equipment. It covers three-phase systems with nominal voltages above 1 kV. It has the status of a horizontal standard in accordance with IEC Guide 108. This edition includes the following significant technical changes with respect to the previous edition:
    a) the annex on clearance in air to assure a specified impulse withstand voltage installation is deleted because the annex in IEC 60071-1 is overlapped;
    b) 4.2 and 4.3 on surge arresters are updated;
    c) 4.3.5 on very-fast-front overvoltages is revised. Annex J on insulation co-ordination for very-fast-front overvoltages in UHV substations is added;
    d) Annex H on atmospheric correction – altitude correction is added.
    e) Annex I on evaluation method of non-standard lightning overvoltage shape is added.

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

    Committee PEL/99
    Development Note Supersedes 17/30339060 DC & BS EN 60071-2. (06/2018)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes
    • 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