• I.S. EN 50394-1:2004

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GROUP 1 - INTRINSICALLY SAFE SYSTEMS; PART 1: CONSTRUCTION AND TESTING

    Available format(s):  Hardcopy, PDF

    Superseded date:  02-10-2013

    Language(s):  English

    Published date:  01-01-2004

    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.

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

    Introduction
    1 Scope
    2 Normative references
    3 Definitions
    4 Categories of intrinsically safe electrical systems
       (in accordance with EN 50014)
    5 Interconnecting wiring/cables used in an intrinsically
       safe electrical system
    6 Accessories for intrinsically safe electrical systems
    7 Type tests and assessment
    8 Marking of intrinsically safe electrical systems
    9 Descriptive system document
    10 Instructions
    Annex A (normative) - Requirements for cables
    Annex B (informative) - Typical descriptive system drawing
    Annex C (normative) - Assessment of a simple intrinsically
                            safe system
    Annex D (normative) - Assessment of circuits with more than
                            one linear source of power
    Annex E (normative) - Trapezoidal power supplies
    Annex F (normative) - Non-linear power supplies
    Annex G (normative) - Verification of inductive parameters

    Abstract - (Show below) - (Hide below)

    Contains the requirements for construction and testing of Group I intrinsically safe electrical systems intended for use, as a whole or in part, in atmospheres susceptible to firedamp.

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

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    Status Superseded
    Superseded By

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

    EN 50020:2002 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
    EN 50014:1997/A2:1999 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS
    EN 50303:2000 Group I, Category M1 equipment intended to remain functional in atmospheres endangered by firedamp and/or coal dust
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