BS EN 50281-1-1:1999:2002 Edition
$142.49
Electrical apparatus for use in the presence of combustible dust. Electrical apparatus protected by enclosures – Construction and testing
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 26 |
Specifies requirements for design, construction and testing based on limitation of maximum surface temperature, restriction of dust ingress and use of dust-tight or dust protected enclosures.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | National foreword |
| 4 | Foreword Foreword to amendment A1 Contents |
| 5 | Introduction 1 Scope |
| 6 | 2 Normative references |
| 7 | 3 Definitions 3.1 dust 3.2 combustible dust 3.3 conductive dust 3.4 explosive dust atmosphere 3.5 ignition temperature of a dust layer 3.6 ignition temperature of a dust cloud 3.7 dust ignition protection 3.8 dust-tight enclosure 3.9 dust-protected enclosure 3.10 maximum surface temperature 3.11 maximum permissible surface temperature |
| 8 | 3.12 equipment group II category 1 3.13 equipment group II category 2 3.14 equipment group II category 3 4 Requirements for all category 1 and 2 electrical apparatus 4.1 General |
| 9 | 4.2 Non metallic enclosures and non metallic parts of enclosures |
| 10 | 4.3 Fasteners 4.4 Interlocking devices 4.5 Bushings in enclosures 4.6 Materials used for cementing |
| 11 | 4.7 Connection facilities and terminal compartments 4.8 Connection facilities for earthing and bonding conductors Table 1 – Minimum cross-sectional areas of protective conductors 4.9 Cable and conduit entries |
| 12 | 4.10 Radiating equipment 5 Supplementary requirements for certain category�2�electrical apparatus 5.1 Rotating electrical machines |
| 13 | 5.2 Switchgear |
| 14 | 5.3 Fuses 5.4 Plugs and sockets 5.5 Luminaires |
| 15 | 5.6 Caplights, caplamps and handlamps 6 Requirements for all category 3 electrical apparatus 6.1 General 6.2 Non-metallic enclosures and non-metallic parts of enclosures |
| 16 | 6.3 Fasteners 6.4 Interlocking devices 6.5 Bushings in enclosures 6.6 Materials used for cementing 6.7 Connection facilities and terminal compartments 6.8 Connection facilities for earthing and bonding conductors |
| 17 | Table 2 – Minimum cross-sectional areas of protective conductors 6.9 Cable and conduit entries 6.10 Radiating equipment |
| 18 | 7 Supplementary requirements for certain category�3 electrical apparatus 7.1 Rotating electrical machines 7.2 Switchgear 7.3 Fuses 7.4 Plugs and sockets |
| 19 | 7.5 Luminaires 7.6 Caplights, caplamps and handlamps |
| 20 | 8 Type verification and tests 9 Dust tightness test 9.1 Dust tight apparatus 9.2 Dust protected apparatus 10 Thermal tests for category 1, 2 and 3 electrical apparatus 10.1 Temperature measurement |
| 21 | 10.2 Temperature control 10.3 Ambient temperature range |
| 22 | 10.4 Maximum surface temperature of the enclosure�T 10.5 Category 1 apparatus 11 Marking 11.1 The electrical apparatus shall be marked on the main part in a visible place. This marking s… 11.2 The marking shall include: 11.3 Supplementary marking of apparatus |
| 23 | 12 Examples of marking 12.1 Marking for category 1 or 2 apparatus 12.2 Marking for category 3 apparatus |
| 24 | 13 Instructions |
