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I.S. 231:1979

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ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS

Available format(s)

Hardcopy , PDF

Superseded date

07-06-1993

Language(s)

English

Published date

01-01-1979

Publisher

National Standards Authority of Ireland

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IEC Publications referred to in European Standard
EN 50014
ISO Standards referred to in European Standard
EN 50014
European Standards referred to in European Standard
EN 50014
SECTION 1 - General
1 Scope
2 Definitions
3 Grouping and classification of electrical apparatus
4 Temperatures
Section 2 - Requirements for all electrical apparatus
5 General
6 Enclosures of plastics material
7 Light alloy enclosures
8 Fasteners
9 Interlocking devices
10 Bushings
11 Materials used for cementing
12 Connections
13 Connection facilities for earthing or bonding
   conductors
14 Connection facilities and terminal compartments
14 Cable and conduit entries
Section 3 - Supplementary requirements for certain
electrical apparatus
16 Rotating electrical machines
17 Switchgear
18 Fuses
19 Plugs and sockets
20 Luminaires
21 Hand lamps and cap lamps
Section 4 - Verification and tests
22 Type verifications and tests
23 Routine verifications and tests
24 Manufacturer's responsibility
25 Verification and tests on modified or repaired
   electrical apparatus
Section 5 - Marking
26 Marking
Annex A Subdivision of gases and vapours according to their
        maximum experimental safe gaps and minimum ignition
        currents
Annex B Example of test rig for impact test
Annex C Methods of measurement of the insulation
        resistance of parts of enclosures of plastic
        materials
Annex D Practical examples of legible and durable
        marking

Includes the 'General requirements' for the construction and testing of electrical apparatus for use in potentially explosive atmospheres in order to ensure that such apparatus will not cause an explosion of the surrounding atmosphere.

DocumentType	Standard
Pages	74
PublisherName	National Standards Authority of Ireland
Status	Superseded
SupersededBy	I.S. EN 50014:1998

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