AS 1670.4-2004

1 - AS 1670.4-2004 FIRE DETECTION, WARNING, CONTROL AND INTERCOM SYSTEMS-SYSTEM DESIGN, INSTALLATION AND COMMISSIONING...
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 APPLICATION
8 - 1.3 REFERENCED DOCUMENTS
9 - 1.4 DEFINITIONS
9 - 1.4.1 Alert signal
9 - 1.4.2 Discharged battery
10 - 1.4.3 Emergency call point
10 - 1.4.4 Evacuate signal
10 - 1.4.5 Evacuation zone
10 - 1.4.6 Warning signal
10 - 1.5 COMPLIANCE WITH OTHER STANDARDS
10 - 1.6 INTERPRETATION OF SPECIFIED LIMITING VALUES
11 - SECTION 2 GENERAL INSTALLATION REQUIREMENTS
11 - 2.1 INDICATOR PANELS
11 - 2.1.1 Location
11 - 2.1.2 Physical working environment
12 - 2.2 DISTRIBUTED EQUIPMENT PROTECTION
12 - 2.3 WIRING
12 - 2.3.1 Wiring protection
12 - 2.3.2 Joints and terminations
12 - 2.3.3 Separation from other systems
12 - 2.4 EMERGENCY PROCEDURES
13 - 2.5 OPERATOR™S INSTRUCTIONS
13 - 2.6 INSTALLER™S STATEMENT
14 - SECTION 3 POWER SUPPLY
14 - 3.1 GENERAL
14 - 3.2 MAIN POWER SOURCE
14 - 3.3 STAND-BY POWER SOURCE
14 - 3.4 POWER SOURCE RATING
14 - 3.4.1 Main power source
15 - 3.4.2 Stand-by power source
15 - 3.5 BATTERY CAPACITY
15 - 3.6 CHARGING CURRENT
15 - 3.7 BATTERIES AND ENCLOSURES
15 - 3.7.1 General
16 - 3.7.2 Battery enclosures
16 - 3.8 ANCILLARY LOADS
17 - SECTION 4 SOUND SYSTEM INSTALLATION REQUIREMENTS
17 - 4.1 GENERAL
17 - 4.2 COMPONENTS
17 - 4.3 FUNCTIONAL REQUIREMENTS
17 - 4.3.1 Distribution of audible signals
17 - 4.3.2 Initiation
18 - 4.3.3 Alert signal duration
18 - 4.3.4 Output of loudspeakers
18 - 4.3.5 Voice message
18 - 4.3.6 Intelligibility
19 - 4.3.7 Visual warning devices and tactile warning devices
19 - 4.3.8 Interconnection to the fire CIE
19 - 4.3.9 Use of the sound system for non-emergency purposes
19 - 4.4 WIRING
19 - 4.4.1 Wiring protection
20 - 4.4.2 Integrity of circuits
20 - 4.4.3 Circuit supervision
21 - 4.5 LOUDSPEAKERS
21 - 4.5.1 General
21 - 4.5.2 Connection facilities
21 - 4.5.3 Stress on conductors and terminals
23 - SECTION 5 INTERCOM SYSTEM INSTALLATION REQUIREMENTS
23 - 5.1 GENERAL
23 - 5.2 COMPONENTS
23 - 5.3 WARDEN INTERCOM POINTS
23 - 5.3.1 General
23 - 5.3.2 Sound levels during and emergency
23 - 5.3.3 Location
23 - 5.3.4 Connection facilities
24 - 5.3.5 Stress on conductors and terminals
24 - 5.3.6 Crosstalk, clarity and intelligibility
24 - 5.3.7 Aural call signal
24 - 5.4 WIRING
24 - 5.4.1 Wiring protection
24 - 5.4.2 Integrity of circuits
25 - 5.4.3 Circuit Supervision
27 - SECTION 6 COMMISSIONING
27 - 6.1 GENERAL CHECKS
27 - 6.2 SPECIFIC SOUND SYSTEM CHECKS
28 - 6.3 SPECIFIC INTERCOM SYSTEM CHECKS
28 - 6.4 DOCUMENTATION
28 - 6.4.1 General
28 - 6.4.2 Log
30 - APPENDIX A - MEASUREMENT OF SPEECH INTELLIGIBILITY
30 - A1 CHOICE OF MEASUREMENT
30 - A2 STATUS OF THE SOUND SYSTEM
30 - A3 NUMBER OF MEASUREMENTS AND CALCULATION OF THE RESULT
30 - A4 SOUND PRESSURE LEVEL (SPL)
30 - A5 AMBIENT NOISE LEVEL
32 - APPENDIX B - METHODS OF MEASURING SPEECH INTELLIGIBILITY
32 - B1 GENERAL
32 - B2 METHODS OF MEASUREMENT
32 - B2.1 Speech transmission index (STI)
32 - B2.2 Rapid (or room) acoustics speech transmission index (RASTI)
32 - B2.3 Phonetically balance (PB) word scores
32 - B2.4 Modified rhyme test (MRT)
32 - B2.5 Articulation index (AI)
33 - B2.6 Articulated loss of consonants
33 - B3 LIMITATIONS OF THE METHODS
33 - B3.1 General
33 - B3.2 Speech transmission index (STI)
33 - B3.3 RASTI
33 - B3.4 Phonetically balanced (PB) word scores (256 and 1009 population)
33 - B3.5 Articulation index
33 - B3.6 Articulation loss of consonants
34 - B4 CORRELATION OF THE RESULTS OF THE VARIOUS METHODS
35 - APPENDIX C - WIRING SYSTEMS RATING
35 - C1 PROTECTION AGAINST EXPOSURE TO FIRE
35 - C2 PROTECTION AGAINST MECHANICAL DAMAGE
35 - C2.1 General
35 - C2.2 WS5X
35 - C2.3 WS51
35 - C2.4 WS52
36 - C2.5 WS53
36 - C2.6 WS54
36 - C2.7 WS55
36 - C3 PROTECTION AGAINST HOSING WITH WATER
37 - APPENDIX D - (Informative)
39 - APPENDIX E - COMMISSIONING TEST REPORT

Specifies requirements for the design, installation and commissioning of the components of sound systems and intercom systems for emergency purposes.

This Standard specifies requirements for the design, installation and commissioning of sound systems and intercom systems for emergency purposes comprising components complying with the requirements of the appropriate product Standards. NOTE: The general procedures for the use of the sound system and intercom system and the response of personnel are given in AS 3745.

Originated as part of AS 2220-1978.
Previous edition AS 2220.2-1989.
Revised and redesignated as AS 1670.4-2004.