AS/NZS 4487:1997

1 - AS/NZS 4487:1997 PYROGEN FIRE EXTINGUISHING SYSTEMS
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 APPLICATION
8 - 1.3 NEW DESIGN AND INNOVATIONS
8 - 1.4 REFERENCED DOCUMENTS
9 - 1.5 INTERPRETATION OF SPECIFIED LIMITING VALUES
9 - 1.6 DEFINITIONS
9 - 1.6.1 Actuating mechanism
9 - 1.6.2 Aerosol
9 - 1.6.3 Aggressive environment
9 - 1.6.4 Appropriate authority
9 - 1.6.5 Approved and approval
9 - 1.6.6 Automatic
9 - 1.6.7 Combustion reaction
9 - 1.6.8 Control device
9 - 1.6.9 Coolant
9 - 1.6.10 Design concentration(g/m3)
9 - 1.6.11 Design factor (g/m3)
9 - 1.6.12 Design quantity
9 - 1.6.13 Extinguishant
9 - 1.6.14 Holding time
9 - 1.6.15 Hot work
10 - 1.6.16 Inerting
10 - 1.6.17 Igniter
10 - 1.6.18 Listing authority
10 - 1.6.19 Location drawing
10 - 1.6.20 Manual
10 - 1.6.21 Monitoring
10 - 1.6.22 Normally occupied area
10 - 1.6.23 Normally unoccupied area
10 - 1.6.24 Operating device
10 - 1.6.25 Primary release
10 - 1.6.26 Pyrogen
10 - 1.6.27 Pyrogen generator
10 - 1.6.28 Release
10 - 1.6.29 Shall
10 - 1.6.30 Should
10 - 1.6.31 Solid aerosol-forming composition
10 - 1.6.32 System isolate switch
10 - 1.6.33 Thermal ignition device
10 - 1.6.34 Total flooding system
10 - 1.7 USES AND LIMITATIONS OF PYROGEN
10 - 1.7.1 General
12 - 1.7.2 Extinguishing mechanism
12 - 1.7.3 Uses for Pyrogen systems
12 - 1.7.4 Limitations of Pyrogen systems
12 - 1.7.5 Protection of multiple risks
13 - SECTION 2 SAFETY REQUIREMENTS
13 - 2.1 POTENTIAL HAZARDS
13 - 2.2 PROTECTION OF OCCUPANTS
13 - 2.3 SAFETY ASPECTS
13 - 2.3.1 General
14 - 2.3.2 Installer’s responsibility
15 - 2.3.3 Owner’s responsibility
15 - 2.3.4 Electrical clearance
15 - 2.3.5 Hazardous areas
16 - SECTION 3 SYSTEM SUPPLY
16 - 3.1 QUALITY
16 - 3.2 SOLID AEROSOL-FORMING COMPOSITION
16 - 3.2.1 Chemical composition
16 - 3.2.2 Performance
16 - 3.2.3 Toxicity
16 - 3.2.4 Ignition
16 - 3.2.5 Stability
16 - 3.2.6 Dangerous goods classification
16 - 3.3 COOLANT
16 - 3.3.1 Chemical composition
16 - 3.3.2 Performance
17 - 3.3.3 Toxicity
17 - 3.4 IGNITION DEVICE
17 - 3.4.1 Electrical ignition device
17 - 3.4.2 Thermal ignition device
17 - 3.5 PYROGEN GENERATORS
17 - 3.5.1 General
17 - 3.5.2 Materials of construction
17 - 3.5.3 Performance
17 - 3.6 ACCESSORIES
17 - 3.6.1 Mounting brackets
17 - 3.6.2 Thermal ignition device
17 - 3.7 STORAGE ARRANGEMENTS
19 - SECTION 4 SYSTEM DESIGN
19 - 4.1 SPECIFICATIONS, PLANS AND APPROVALS
19 - 4.1.1 Specifications
19 - 4.1.2 Plans
19 - 4.1.3 System calculation approval
19 - 4.1.4 Approval of plans
20 - 4.1.5 Approval of installation
20 - 4.1.6 Approval of components
20 - 4.1.7 Deemed to satisfy
20 - 4.2 CONCENTRATION REQUIREMENTS
20 - 4.2.1 General
20 - 4.2.2 Concentration, distribution and holding
20 - 4.2.3 Class A fires-Combustible solids
21 - 4.2.4 Class B fires-Flammable liquids
21 - 4.2.5 Class C fires-Flammable gases
21 - 4.2.6 Requirement for flame extinguishment
21 - 4.2.7 Class E fires-Electrically energized fuels
21 - 4.2.8 Class F-Fats and cooking oils
21 - 4.2.9 Inerting
21 - 4.2.10 Extended application
21 - 4.3 TOTAL FLOODING QUANTITY REQUIREMENTS
22 - 4.4 DESIGN LIMITATIONS FOR TOTAL FLOODING SYSTEMS
23 - SECTION 5 PROTECTED ENCLOSURE REQUIREMENTS
23 - 5.1 UNCLOSABLE OPENINGS
23 - 5.2 VENTILATION AND SERVICES
23 - 5.3 PRESSURE RELIEF VENTING
24 - 5.4 ENCLOSURE STRENGTH
25 - SECTION 6 INSTALLATION
25 - 6.1 GENERAL
25 - 6.2 ARRANGEMENT
25 - 6.3 INSTALLATION RECOMMENDATIONS
26 - SECTION 7 CONTROL AND ACTUATION SYSTEMS
26 - 7.1 ACTUATION MECHANISM
26 - 7.1.1 General
26 - 7.1.2 Automatic operation
26 - 7.1.3 Manual operation
26 - 7.1.4 System isolate switch
26 - 7.2 OPERATING DEVICES
26 - 7.3 DETECTION, ALARM AND CONTROL SYSTEMS
27 - 7.4 CONTROL AND INDICATING EQUIPMENT
27 - 7.5 LOCAL CONTROL STATION
28 - 7.6 AUDIBLE ALARMS AND VISUAL WARNING DEVICES
29 - SECTION 8 MARKING
29 - 8.1 CONTROL AND INDICATING EQUIPMENT (CIE)
29 - 8.2 VISUAL WARNING DEVICES
29 - 8.3 LOCATION DRAWING
29 - 8.4 IDENTIFICATION AND MARKINGS OF PYROGEN GENERATORS
29 - 8.4.1 Identification
30 - 8.4.2 Permanent marking
30 - 8.4.3 Marking
30 - 8.5 LABELLING OF INDICATORS AND CONTROLS
35 - SECTION 9 COMMISSIONING AND ACCEPTANCE TESTING
35 - 9.1 CRITERIA FOR ACCEPTANCE
35 - 9.2 COMMISSIONING CERTIFICATION
35 - 9.3 FAILURE
36 - APPENDIX A - SAFETY OF PERSONNEL
36 - AI SCOPE
36 - A2 EFFECT ON HUMANS
37 - A3 SAFETY PRECAUTIONS
37 - A4 STORAGE AND TRANSPORTATION
38 - APPENDIX B - DISCHARGE TEST
38 - B1 SCOPE
38 - B2 PRINCIPLE
38 - B3 TEST MEDIUM
38 - B4 APPARATUS
38 - B5 PROCEDURE
39 - B6 RECOMMISSIONING
39 - B7 REPORTING
40 - APPENDIX C - TOTAL FLOODING QUANTITY CALCULATIONS-SPECIAL CONDITIONS
40 - C1 GENERAL
40 - C2 SEALED ENCLOSURES
40 - C3 EFFECTS OF ALTITUDE
41 - C4 EFFECTS OF TEMPERATURE
42 - C5 EFFECTS OF VENTILATION
43 - C6 COMPENSATION FOR LEAKAGE THROUGH ENCLOSURE OPENINGS
46 - APPENDIX D - COMMISSIONING CHECK LIST
48 - APPENDIX E - NOTICE OF COMPLETION

Provides users of pyrogen fire extinguishing aerosol systems with specific requirements for the control of fires of Classes A, B, C or F and E type.

This Standard sets out requirements for design, installation and commissioning of fire extinguishing systems utilizing SOYUZ pyrogenically generated fire extinguishing aerosol for use as single or multiple systems for total flooding applications in normally unoccupied areas. The SOYUZ pyrogenically generated fire extinguishing aerosol shall be generally referred to as Pyrogen in this Standard.

First published as AS/NZS 4487:1997