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AS 1299:2022
$211.37
Electrical equipment for mines and quarries – Explosion-protected three-phase restrained and bolted cable coupling devices for working voltages up to and including 11 kV
AS 1299:2022 specifies the design and test requirements for explosion-protected three-phase restrained and bolted devices. These devices incorporate three power contacts, one pilot contact and possibly one or more auxiliary contacts, an earth contact and an earthed phase barrier. These devices are intended for use with restricted earth-fault systems in mines and quarries with a working voltage up to and including 11 kV
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Terms and definitions
1.4 Service conditions
1.5 Ratings, dimensions and colour coding
1.5.1 Type A
1.5.2 Type B
1.6 Marking
2 Design
2.1 Enclosure
2.1.1 Explosion protection
2.1.1.1 Restrained receptacles
2.1.1.2 Bolted adapters
2.1.2 Ingress protection
2.1.3 Mounting
2.2 Clearance and creepage distances
2.3 Materials
2.4 Fasteners
2.5 Cable glands
2.6 Terminals
2.6.1 General
2.6.2 Conductor insertion depth
2.7 Contact sockets and pins
2.7.1 General
2.7.2 Materials
2.7.3 Construction of sockets
2.7.4 Location of sockets and pins
2.7.5 Pins
2.7.6 Self-adjusting arrangements
2.8 Earthing
2.8.1 General
2.8.2 Phase barrier
2.8.3 Scraping earth contact on restrained devices
2.8.4 Type B alternate earth contact
2.8.5 Terminals
2.9 Insulation material properties
2.10 Operating and retaining method for restrained devices
2.10.1 General
2.10.2 Removal operation
2.10.3 Type B devices
2.11 Cable reel receptacle
2.12 Receptacle body
2.13 Earth receptacles and adapters
3 Testing
3.1 Categories of tests
3.2 Routine tests
3.2.1 General
3.2.2 High voltage test
3.2.3 Contact pressure test
3.2.4 Scraping earth contact — Restrained devices
3.2.5 Earth contact test — Type B restrained devices
3.3 Type tests
3.3.1 General
3.3.2 List of type tests — Restrained devices
3.3.2.1 Type tests that are not required to be conducted in the sequence
3.3.2.2 Type tests that are required to be conducted in the sequence
3.3.2.3 Product performance related testing
3.3.3 List of type tests — Bolted devices
3.3.3.1 Type tests that are not required to be conducted in the sequence
3.3.3.2 Type tests that are required to be conducted in the sequence
3.3.3.3 Product performance related testing
3.3.4 Operating and retaining mechanism test — Restrained devices
3.3.4.1 Operating mechanism test
3.3.4.2 Retaining method test
3.3.5 Cable gland (slip load) test
3.3.6 Phase barrier (slip load) test
3.3.7 Thermal endurance test
3.3.8 High voltage test
3.3.9 Contact integrity test
3.3.9.1 Procedure
3.3.9.2 Requirements
3.3.9.3 Scraping earth test — Restrained devices
3.3.9.4 Earth contact test — Type B restrained devices
