AS 2381.10-1989

1 - AS 2381.10-1989 ELECTRICAL EQUIPMENT FOR EXPLOSIVE ATMOSPHERES-SELECTION, INSTALLATION AND MAINTENANCE - EQUIPMENT IN COMBUST ..
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
6 - 1.3 DEFINITIONS.
6 - 1.3.1 Area, hazardous
6 - 1.3.2 Combustible dust
6 - 1.3.3 Compounded joint
6 - 1.3.4 Dust
6 - 1.3.5 Enclosure, dust-excluding ignition-proof (DIP enclosure)
6 - 1.3.6 Equipotential bonding
6 - 1.3.7 Fibre
6 - 1.3.8 Flyings
6 - 1.3.9 Inherently explosive dusts
7 - 1.3.10 Minimum cloud ignition energy
7 - 1.3.11 Temperature, cloud ignition
7 - 1.3.12 Temperature, layer ignition
7 - 1.3.13 Explosion venting
7 - 1.4 ELECTRICAL RATING
7 - 1.5 PROTECTION AGAINST STATIC
7 - 1.6 PROTECTION AGAINST LIGHTNING
7 - 1.7 OTHER CONSIDERATIONS
8 - SECTION 2. SELECTION OF EQUIPMENT
8 - 2.1 SCOPE OF SECTION
8 - 2.2 PERMITTED TYPES OF PROTECTION
8 - 2.2.1 General
8 - 2.2.2 Dust-excluding ignition-proof enclosures (DIP)
8 - 2.2.3 Encapsulated equipment (Ex m)
8 - 2.2.4 Intrinsically safe equipment (Ex i)
8 - 2.3 TEMPERATURE CLASSIFICATION
8 - 2.3.1 General
9 - 2.3.2 Differential required.
9 - 2.3.3 Example of temperature calculation
9 - 2.3.4 Ambient temperature consideration
9 - 2.4 PHYSICAL CHARACTERISTICS
9 - 2.4.1 Enclosure shape
9 - 2.4.2 Exterior panels
9 - 2.4.3 Cleaning and housekeeping
9 - 2.5 HEATING EQUIPMENT
10 - SECTION 3. INSTALLATION
10 - 3.1 SCOPE OF SECTION
10 - 3.2 WIRING SYSTEMS
10 - 3.2.1 General
10 - 3.2.2 Intrinsically safe circuits
10 - 3.2.3 Sheathed cables
10 - 3.2.4 MIMS cable
10 - 3.2.5 Armoured cables
10 - 3.2.6 Use of conduit
10 - 3.2.7 Flexible connections
11 - 3.3 SUPPORTS FOR WIRING
11 - 3.3.1 General
11 - 3.3.2 Prevention of sagging
11 - 3.3.3 Supports
11 - 3.3.4 Distances between supports
11 - 3.4 DRAINAGE
11 - 3.5 THREADED CONNECTIONS
11 - 3.5.1 General
11 - 3.5.2 Thread form
11 - 3.5.3 Length of thread
11 - 3.5.4 Sealing of threaded joints
11 - 3.6 EARTHING
11 - 3.7 EQUIPOTENTIAL BONDING
11 - 3.8 SOCKET-OUTLETS
11 - 3.8.1 Permitted types
11 - 3.8.2 Automatic isolation
12 - 3.8.3 Mounting
12 - 3.8.4 Location
12 - 3.9 PROTECTION
12 - 3.9.1 General
12 - 3.9.2 Motors.
12 - 3.10 ISOLATION
12 - 3.11 ABRASION PROTECTION
13 - SECTION 4. INSPECTION, TESTING AND MAINTENANCE
13 - 4.1 GENERAL
13 - 4.2 DOCUMENTATION.
13 - 4.3 FORMS OF INSPECTION
13 - 4.4 ON SITE ELECTRICAL TESTING
13 - 4.4.1 General
13 - 4.4.2 Installation tests
13 - 4.4.3 Periodical tests
13 - 4.5 MAINTENANCE
14 - APPENDIX A - GENERAL CONSIDERATIONS
14 - A1 HOUSEKEEPING
14 - A2 EXCLUSION OF ELECTRICAL EQUIPMENT FROM CLASS II AREAS
14 - A3 VIBRATION
14 - A4 BUILDING DESIGN
15 - A5 HOT SURFACES
16 - APPENDIX B - INFORMATION REGARDING INSTALLATION
16 - B1 GENERAL.
16 - B2 INFORMATION REQUIRED.
17 - APPENDIX C - INSPECTION, TESTING AND MAINTENANCE
17 - C1 FORMS OF INSPECTION
17 - C2 INSPECTION CHECKS
17 - C2.1 Area classification
17 - C2.2 Modifications
17 - C2.3 Surface temperature class
17 - C2.4 Marking
17 - C2.5 Circuit loop number/identification tag
17 - C2.6 Lamps and fuses
17 - C2.7 Earthing
17 - C2.8 Electrical connections
17 - C2.9 Damage
18 - C2.10 Compliance with documentation
18 - C3 MAINTENANCE
18 - C3.1 General
18 - C3.2 Check list
18 - C3.3 Removal of electrical equipment
18 - C3.4 Modification or repair.
19 - C3.5 Inspection after maintenance
19 - C4 RECORDS

Sets out requirements for the selection, installation and maintenance of electrical equipment for use in areas where combustible dust may be present in such quantities as are likely to produce a fire or explosion hazard.