AS/NZS 2381.2:2006

1 - AS/NZS 2381.2:2006 ELECTRICAL EQUIPMENT FOR EXPLOSIVE ATMOSPHERES-SELECTION, INSTALLATION AND MAINTENANCE - FLAMEPROOF...
4 - PREFACE
5 - CONTENTS
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 DEFINITIONS
7 - 1.3.1 Flameproof enclosure
7 - 1.3.2 Flameproof joint
7 - 1.3.3 Gap
7 - 1.3.4 Flamepath
7 - 1.3.5 Normative
7 - 1.4 PRINCIPLE OF TECHNIQUE
7 - 1.4.1 General
8 - 1.4.2 Enclosures
8 - 2 SELECTION
8 - 2.1 SCOPE OF SECTION
8 - 2.2 AREA CLASSIFICATION
8 - 2.3 EQUIPMENT GROUPING
8 - 2.3.1 General
9 - 2.3.2 GroupIIC equipment
9 - 2.4 TEMPERATURE CLASSIFICATION
9 - 2.4.1 Maximum surface temperature
9 - 2.4.2 Ambient temperature
9 - 2.5 ENVIRONMENTAL CONDITIONS
9 - 2.6 FAULT CONDITIONS
10 - 3 INSTALLATION
10 - 3.1 SCOPE OF SECTION
10 - 3.2 CLEARANCE FROM OBJECTS
10 - 3.3 PROTECTION FROM THE ENVIRONMENT
10 - 3.3.1 Weather protection
10 - 3.3.2 Corrosion protection
11 - 3.3.3 Use of tape
11 - 3.4 CONDUIT SYSTEMS
11 - 3.4.1 Installation
11 - 3.4.2 Enclosures, fittings and unions
11 - 3.5 CABLE SYSTEMS
11 - 3.5.1 Installation
11 - 3.5.2 Cable types
12 - 3.6 CABLE ENTRY
12 - 3.6.1 General
12 - 3.6.2 Selection of cable glands
13 - 3.6.3 Adapters
13 - 3.7 UNUSED ENTRIES
13 - 4 INSPECTION AND TESTING, INCLUDING COMMISSIONING
13 - 4.1 GENERAL
14 - 4.2 DOCUMENTATION
14 - 4.3 FORMS OF INSPECTION
14 - 4.4 TESTING
14 - 5 MAINTENANCE
14 - 5.1 GENERAL
14 - 5.2 PROCEDURES
14 - 5.3 REPAIRS
15 - APPENDIX A - INSPECTION, TESTING AND MAINTENANCE
15 - A1 TYPES OF INSPECTION
15 - A1.1 Initial inspection
15 - A1.2 Periodic inspection
16 - A1.3 Sample inspections
16 - A2 GRADES OF INSPECTION
16 - A2.1 General
16 - A2.2 Visual inspection
16 - A2.3 Close inspection
16 - A2.4 Detailed inspection
16 - A3 INSPECTION CHECKS
16 - A3.1 Area classification
16 - A3.2 Grouping
16 - A3.3 Temperature class
17 - A3.4 Circuit identification
17 - A3.5 Marking
17 - A3.6 Enclosure
20 - A3.7 Sealing gaskets and compounds
20 - A3.8 Modifications
20 - A3.9 Gaps
20 - A3.10 Cabling
20 - A3.11 Earthing
20 - A3.12 Compliance with documentation
20 - A3.13 Damage
20 - A4 SPECIAL INSPECTIONS FOR MOVABLE EQUIPMENT
21 - A5 MAINTENANCE
21 - A5.1 General
21 - A5.2 Check list
21 - A5.3 Removal of electrical equipment
21 - A5.4 Modification or repair
21 - A5.5 Inspection after maintenance
22 - A6 RECORDS
23 - APPENDIX B - INFORMATION REGARDING INSTALLATION
23 - B1 GENERAL
23 - B2 INFORMATION REQUIRED

Specifies requirements for the selection, installation and maintenance of electrical equipment, for use in explosive atmospheres, which have been certified in accordance with the requirements of type of explosion protection ‘d’. It does not apply to electrical equipment used in underground mining.

This Standard sets out requirements for the selection, installation and maintenance of flameproof enclosures, type of protection ’d’.This Standard shall be read in conjunction with AS/NZS 2381.1, which describes the fundamental considerations which affect the selection, installation and maintenance requirements of all electrical equipment used in hazardous areas.Requirements for the design and construction of flameproof electrical equipment are given in AS/NZS 60079.1.While this Standard may be applied to coal mining installations additional requirements may be contained in State mining regulations.

First published as AS 1076.3-1977.
Revised and redesignated AS 2381.2-1993.
Final edition 2006.