BS EN 13463-3:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Determination of suitability and general requirements
   4.1 Determination of suitability
   4.2 General requirements
5 Flameproof joints
6 Cemented joints
7 Operating rods
8 Supplementary requirements for shafts and bearings
9 Light transmitting parts
10 Breathing and draining devices which form part of a
   flameproof enclosure
11 Fasteners, associated holes and closing devices
12 Materials and mechanical strength of enclosures;
   materials inside the enclosure
13 Entries for flameproof enclosures
14 Verification and tests
15 Type tests
   15.1 Type testing of flameproof non-electrical
        equipment for explosive gas or vapour/air mixtures
   15.2 Type testing of non-electrical electrical
        equipment for explosive gas or vapour/air mixtures
16 Routine tests
17 Switchgear
18 Lampholders and lampcaps
19 Non-metallic enclosures and non-metallic parts of enclosures
20 Apparatus using capillaries
21 Instructions and documentation
   21.1 User instructions
   21.2 Technical documentation
22 Marking
Annex A (normative) Additional requirements for crimped
                       ribbon elements of breathing and
                       draining devices
Annex B (normative) Additional requirements for elements,
                       with non-measurable paths, of
                       breathing and draining devices
Annex C (normative) Additional requirements for flameproof
                       entries
Annex ZA (informative) Relationship between this European
                       Standard and the Essential Requirements
                       of EU Directive 94/9/EC
Bibliography

Defines the requirements for the design, assessment, construction and testing of equipment intended for use in potentially explosive gas or dust atmospheres, protected by the type of protection: Flameproof enclosure "d".

This document specifies the requirements for the design, assessment, construction and testing of equipment intended for use in potentially explosive gas or dust atmospheres, protected by the type of protection: Flameproof enclosure \'d\'.

This document supplements the requirements in EN 13463-1, the contents of which also apply in full to equipment constructed to this document. Equipment complying with the relevant clauses of this document meets the requirements for the following categories:

• Equipment Group I Category M2 – that does not contain an ignition source arising from severe operating conditions, in particular arising from rough handling and changing environmental conditions;

• Equipment Group II Category 2G or 2D – that does not contain an ignition source arising as a result of foreseeable malfunctions.

The type of ignition protection described in the document can be used either on its own or in combination with other types of ignition protection to meet the requirements for equipment of Group I categories M2, or Group II categories 1 and 2 depending on the ignition hazard assessment in EN 13463-1.

NOTE The requirements for Group I Category M1 equipment are given in EN 50303, which specifies the requirements for both electrical and non-electrical equipment.

This document shall not be used for equipment intended for use in sulphur dust and organic peroxides because of the difficulty of testing and specifying the requirements

This document does not apply to the ignition protection of electrical equipment, or reciprocating internal combustion engines. For these requirements reference shall be made to EN 60079-0 and EN 60079-1 for electrical equipment and EN 1834-1, -2 and -3 for reciprocation internal combustion engines.