AS 3133-1989

1 - AS 3133-1989 APPROVAL AND TEST SPECIFICATION - AIR BREAK SWITCHES
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE AND REFERENCED DOCUMENTS.
6 - 1.1 Scope.
6 - 1.2 Referenced documents.
6 - 2 DEFINITIONS.
6 - 2.1 Air break switch
6 - 2.2 Ceiling switch
6 - 2.3 Fl ush switch
6 - 2.4 Intermediate switch
6 - 2.5 Isolating switch
6 - 2.6 Number of ways (of a switch)
6 - 2.7 (An) Operation
6 - 2.8 Pole
6 - 2.9 Recovery voltage
6 - 2.10 Rocker switch
6 - 2.11 Semi-recessed switch
6 - 2.12 Surface switch
6 - 2.13 Tumbler switch
6 - 2.14 Wall switch
6 - 2.15 Examples of switch arrangements
7 - 3 COMPLIANCE WITH SPECIFICATIONS AND STANDARDS.
7 - 3.1 General requi rements of AS 3100.
7 - 3.2 Specific requirements of this Specification.
7 - 3.3 Requirements of other Specifications.
7 - 3.4 Compliance with other Standards.
7 - 4 ENCLOSURE.
7 - 5 INSULATING MATERIALS.
7 - 5.1 General.
7 - 5.2 Thickness of insulation.
7 - 5.3 Sealing compounds.
7 - 6 FORM AND ACTION OF CONTACTS.
7 - 7 SEQUENCE OF OPERATION.
7 - 8 ACTUATING MECHANISM.
7 - 9 EARTHING FACILITIES.
7 - 10 ALL-INSULATED OR DOUBLE-INSULATED SWITCHES
8 - 11 PROHIBITED ARRANGEMENTS.
8 - 12 MARKING.
8 - 12.1 Information required.
8 - 12.2 Locati on.
8 - 12.3 Switches in equipment.
8 - 13 TESTS.
8 - 13.1 General requirements.
10 - 13.2 Conditioning.
10 - 13.3 Insulation resistance test No. 1.
10 - 13.4 High voltage test.
10 - 13.5 Endurance test.
11 - 13.6
11 - 13.7 Temperature test.
12 - 13.8 Insulation resistance test No. 2.
12 - 13.9 Earthing facilities.
12 - 13.10 Optional test for motor control switches
12 - 13.11 Inspection of switch.
12 - 13.12 Determination of ignitability and combustion propagation
15 - APPENDIX A - METHOD OF CONDUCTINGENDURANCE TEST

Specifies essential safety requirements for air break switches for approval and test purposes. It is intended to be read in conjunction with AS 3100.

This Specification applies to air break switches operated manually, mechanically, hydraulically or by other means, having current ratings not exceeding 300 A, and intended for use in electrical circuits and appliances operating at low or medium voltage.This Specification does not apply to the following:(a) Switches within the scope of other Approval and Test Specifications or switches which are specifically excluded from compliance with AS 3133 in another Approval and Test Specification.(b) Motor starters and speed controllers other than direct-on-line starting switches of the manually operated type.(c) Switches not intended to make or break a circuit on load, such as isolating switches and certain types of reversing switch.

Under Revision see DR 02405 CP