AS 2290.1-1990

1 - AS 2290.1-1990 ELECTRICAL EQUIPMENT FOR COAL MINES - MAINTENANCE AND OVERHAUL - MAINTENANCE OF ELECTRICAL EQUIPMENT FOR HAZA
4 - PREFACE
4 - CONTENTS
5 - FOREWORD
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 REFERENCED DOCUMENTS.
6 - 1.3 DEFINITIONS.
7 - SECTION 2. FLAMEPROOF ENCLOSURE (Ex d)
7 - 2.1 GENERAL.
7 - 2.1.1 Characteristics of flameproof enclosures.
7 - 2.1.2 Lubricants or corrosion inhibitors.
7 - 2.1.3 Motors.
7 - 2.1.4 Fixing bolts, studs and nuts.
7 - 2.1.5 Attachments.
7 - 2.1.6 Replacement.
7 - 2.2 REPAIR IN SITU.
7 - 2.3 EQUIPMENT APPROVAL.
7 - 2.4 EXAMINATION FREQUENCY.
7 - 2.5 EQUIPMENT EXAMINATION.
7 - 2.5.1 General.
7 - 2.5.2 Safety switching.
7 - 2.5.3 Examination schedules.
7 - 2.6 EXAMINATION SCHEDULES.
7 - 2.6.1 Code A-External examination.
9 - 2.6.2 Code B-Semi-internal examination.
9 - 2.6.3 Code C-Internal examination.
9 - 2.6.4 Code C1-Examination.
10 - 2.7 EQUIPMENT OVERHAUL.
11 - APPENDIX A - PRINCIPLES OF FLAMEPROOF ENCLOSURES
11 - A1 INTRODUCTION.
11 - A2 CHARACTERISTICS OF FLAMEPROOF ENCLOSURES.
11 - A3 MAINTENANCE OF FLAMEPROOF ENCLOSURES.
11 - A3.1 General.
11 - A3.2 Flameproof motors.
12 - A3.3 Maximum surface temperature.
12 - A3.4 Fixing bolts, studs and nuts.
12 - A3.5 Breathing devices.
13 - APPENDIX B - METHOD OF TEMPORARY REPAIR FOR HOLE OR THREAD
14 - APPENDIX C- TYPICAL SAFETY SWITCHING INSTRUCTIONS
15 - APPENDIX D - TYPICAL ‘CODE A’ EXTERNAL EXAMINATION REPORT FORM
16 - APPENDIX E - TYPICAL ‘CODE B’ SEMI-INTERNAL EXAMINATION REPORT FORM
17 - APPENDIX F - TYPICAL ‘CODE C’ INTERNAL EXAMINATION REPORT FORM
18 - APPENDIX G - TYPICAL ‘CODE C1’ EXAMINATION REPORT FORM
19 - APPENDIX H - CORROSION OR SURFACE INDENTATION TOLERANCES
20 - APPENDIX I - TESTS OF JOINT SURFACES USING STRAIGHTEDGES
21 - APPENDIX J - CHECKS OF CIRCULAR FLANGES, SPIGOTS AND HOLES