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AS 1076.6-1977 code of practice for selection, installation and maintenance of electrical apparatus and associated equipment for use in explosive atmospheres other than mining applications - apparatus with type of protection e - incr

Standard Number:  AS 1076.6-1977
Title:  code of practice for selection, installation and maintenance of electrical apparatus and associated equipment for use in explosive atmospheres other than mining applications - apparatus with type of protection e - incr
Language:  English
Replacing Standard:  Doc 1738 (1971) (in part)

Revocatory Date:  1993/3/1
Status:  Withdrawn
Publisher:  Australia Standards(AS)
Price:  
Number of Pages:32  

Preface:   
Description:Applies to the concept of ensuring electrical safety in hazardous areas by means of type of protection 'e' and offers guidance in the installation and maintenance of protected apparatus in hazardous areas. It does not apply to underground mining, but may be applied to certain surface mining installations. For the purpose of the Standard, explosion risks due to the presence of combustible gases and vapour only are considered.  
Catalog:Document Contents
AS 1076, PART 6-1977 SELECTION, INSTALLATION AND MAINTENANCE OF ELECTRICAL APPARATUS AND ...
PREFACE
CONTENTS
FOREWORD
SECTION 1. SCOPE AND GENERAL
1.1 SCOPE
1.2 DEFINITIONS
1.2.1 Increased safety
1.2.2 Limiting temperature
1.2.3 Starting current (I A )
1.2.4 Starting current ratio (IA /IN )
1.2.5 Time (tE )
1.2.6 Thermal current limit (Ith )
1.2.7 Dynamic current limit (Idyn )
1.2.8 Creepage distance
1.2.9 Clearance
1.3 DESCRIPTION OF TECHNIQUE
1.3.1 Principle
1.3.2 Practice
1.3.2.1 Avoidance of arcing and sparking parts
1.3.2.2 Insulation
1.3.2.3 Temperature
1.3.2.4 Enclosure
1.4 RELEVANT SPECIFICATIONS
1.5 PERMISSIBLE ZONES OF USE
1.5.1 Zone 0
1.5.2 Zones 1 and 2
1.6 CERTIFICATION AND ASSESSMENT OF APPARATUS AND SYSTEMS
SECTION 2. THE SELECTION OF APPARATUS
2.1 GENERAL
2.2 TEMPERATURE CLASS
2.2.1 Apparatus
2.2.2 Luminaires
2.2.3 Ambient Temperature
2.3 CONDITIONS OF USE
2.3.1 Electrical and Mechanical Protection
2.3.2 Chemical Compatibility
2.4 APPARATUS GROUPING
2.4.1 Exemption
2.4.2 Grouping of Additional Types of Protection
2.5 ROTATING MACHINES AND SIMILAR APPARATUS
SECTION 3. INSTALLATION RECOMMENDATIONS
3.1 GENERAL
3.2 INSTALLATION OF APPARATUS
3.3 AUTOMATIC ELECTRICAL PROTECTION
3.4 WIRING SYSTEMS
3.4.1 General Recommendations and Requirements
3.4.2 Choice of Wiring System
3.4.3 Permissible Wiring Systems
3.4.4 Temperature
3.4.5 Use of Non-armoured Cables
3.5 INSTALLATION OF METALLIC CONDUIT SYSTEMS
3.6 INSTALLATION OF NON-METALLIC (PLASTICS) CONDUIT SYSTEMS
3.7 INSTALLATION OF CABLES
3.8 CONDUCTOR TERMINATIONS
3.8.1 General
3.8.2 Means of Connection
3.8.3 Maintenance of Non-sparking Characteristics
3.8.4 Saddle Clamps
3.8.5 Slot-type Terminals
3.9 PORTABLE AND TRANSPORTABLE APPARATUS AND ITS CONNECTIONS
SECTION 4. INSPECTION AND MAINTENANCE
4.1 GENERAL
4.2 INITIAL AND PERIODIC INSPECTIONS
4.3 MAINTENANCE
APPENDIX A - SELECTION OF ROTATING MACHINES AND THE ASSOCIATED ELECTRICAL PROTECTION APPA...
A1 GENERAL.
A2 SELECTION OF THE MACHINE
A2.1 Enclosure Requirements
A2.2 Voltage Range
A2.3 Duty Type
A2.4 Rating
A2.5 Supply Frequency
A2.6 Cooling
A3 SELECTION OF THE AUTOMATIC ELECTRICAL PROTECTION
A3.1 Limiting Temperature
A3.2 Temperature Rise
A3.3 Class of Insulation
A3.4 Temperature Control
A3.4.1 Types of control
A3.4.2 Current-dependent protective devices
A3.4.3 Cage-rotor and synchronous machines
A3.4.4 Arduous starting conditions
APPENDIX B - APPARATUS MARKING
B1 GENERAL
B2 MARKING REQUIREMENTS
B3 APPARATUS GROUPING
B4 TEMPERATURE CLASS
B5 APPARATUS WITH MULTIPLE TYPES OF PROTECTION
B6 EXAMPLES OF MARKING
B6.1 Type of Protection ?e? Only
B6.2 Multiple Types of Protection
B7 MARKING OF ROTATING MACHINES
B7.1 Type of Protection ?e? Only
B7.2 Multiple Types of Protection
B7.3 Individual Components
APPENDIX C - IMPACT TEST
APPENDIX D - RESISTANCE TO CHEMICAL ATTACK
  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  505KB
Tile in English:  code of practice for selection, installation and maintenance of electrical apparatus and associated equipment for use in explosive atmospheres other than mining applications - apparatus with type of protection e - incr

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