AS 1670 2 1997 fire detection, warning, control and intercom

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AS 1670.2-1997 Fire detection, warning, control and intercom systems - System

design, installation and commissioning - Local fire

Licensed to LUU MINH LUAN on 25 Feb 2002

AS 1670.2—1997

Fire detection, warning, control and intercom systems—System design, installation and commissioning

Part 2: Local fire

The following interests are represented on Committee FP/2:

Audio Engineering SocietyAustralian Building Codes BoardAustralian Chamber of Commerce and IndustryAustralian Chamber of Manufactures

Australian Electrical and Electronic Manufacturers AssociationAustralasian Fire Authorities Council

Commonwealth Fire BoardDeafness Forum of AustraliaDepartment of DefenceFire Protection Association AustraliaFire Protection Industry Contractors Association of New ZealandInsurance Council of Australia

National Electrical Contractors Association of AustraliaNew Zealand Fire Equipment Association

New Zealand Fire Protection AssociationProperty Council of Australia

Scientific Services Laboratory AGAL — Department of Administrative AffairsTelstra Corporation

Review of Australian Standards To keep abreast of progress in industry, Australian Standards are subject

to periodic review and are kept up to date by the issue of amendments or new editions as necessary It is important therefore that Standards users ensure that they are in possession of the latest editi on, and any amendments thereto.

Full details of all Australi an Standards and related publicati ons will be found in the Standards Australia Catalogue of Publications; this information is supplemented each month by the magazine ‘The Australian Standard’, which subscribing members receive, and which gives details of new publications, new editi ons and amendments, and of wit hdrawn Standards.

Suggestions for improvements to Australian Standards, addressed to the head offi ce of Standards Australia, are welcomed Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate acti on taken.

This Standard was issued in draft form for comment as DR 95131.

AS 1670.2—1997

Fire detection, warning, control and intercom systems—System design, installation and commissioning

Part 2: Local fire

This Australian Standard was prepared by the Joint Standards Australia/StandardsNew Zealand Committee FP/2, Fire Detection, Warning, Control and Intercom Systems, toprovide requirements for and information on the design, installation and commissioning oflocal fire alarm systems to accommodate situations where connection to a monitoringservice provider is either not feasible or not desirable

This Standard is the result of a consensus among representatives on the Joint Committee

to produce it as an Australian Standard

The terms ‘normative’ and ‘informative’ have been used in this Standard to define theapplication of the appendix to which they apply A ‘normative’ appendix is an integralpart of a Standard, whereas an ‘informative’ appendix is only for information andguidance

 Copyri ght STANDARDS AUSTRALIA Users of Standards are reminded that copyri ght subsists in all Standards Australi a publications and software Except where the Copyri ght Act allows and except where provided for below no publi cati ons or soft ware produced by Standards Austr alia may be reproduced, stored in a retri eval system in any form or transmitt ed by any means wit hout prior permission in wri ti ng from Standards Australi a Permission may be conditi onal on an appropri ate royalty payment Requests for permission and informati on

on commercial software royalt ies should be directed to the head offi ce of Standards Austr alia.

Standards Austr alia wil l permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Austr alia.

Standards Austr alia will also permit the inclusion of it s copyright materi al in computer soft ware programs for no royalty payment provided such programs are used exclusively in-house by the creators of the programs.

Care should be taken to ensure that materi al used is fr om the curr ent editi on of the Standard and that it is updated whenever the Standard is amended or revised The number and date of the Standard should therefore be clearly identif ied.

The use of materi al in pri nt form or in computer soft ware programs to be used commercially, with or wit hout payment, or in commercial contracts is subject to the payment of a royalty This policy may be vari ed by Standards Austr alia at any ti me.

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SECTION 1 SCOPE AND GENERAL

1.1 SCOPE 4

1.2 APPLICATION 4

1.3 REFERENCED AND RELATED DOCUMENTS 4

1.4 DEFINITIONS 4

1.5 COMPLIANCE WITH OTHER STANDARDS 5

1.6 INTERPRETATION OF SPECIFIED LIMITING VALUES 5

SECTION 2 GENERAL REQUIREMENTS 2.1 COMPONENTS 6

2.2 SEPARATION OF SYSTEMS 6

SECTION 3 TYPES OF LOCAL FIRE ALARM SYSTEMS 3.1 SYSTEM TYPES 7

3.2 ALARM ZONE LIMITATIONS 7

SECTION 4 INSTALLATION REQUIREMENTS 4.1 GENERAL 9

4.2 POWER SOURCE 9

4.3 SEPARATION OF WIRING SYSTEMS 9

4.4 CONNECTION TO EXISTING INSTALLATIONS 9

4.5 EQUIPMENT AND ITS LOCATION 9

4.6 WARNING SYSTEMS 10

4.7 ANCILLARY LOADS 10

4.8 AIRCONDITIONING AND MECHANICAL VENTILATION 10

4.9 SUPERVISION 10

4.10 INSTALLATION WIRING 10

SECTION 5 COMMISSIONING OF INSTALLATION 5.1 GENERAL 12

5.2 COMMISSIONING TESTS 12

5.3 STATEMENT OF COMPLIANCE 13

5.4 LOG 13

5.5 LFIP DOCUMENTATION 13

APPENDICES A LIST OF REFERENCED AND RELATED DOCUMENTS 15

B TYPICAL COMMISSIONING TEST REPORT 16

C STANDARD FORM OF STATEMENT OF COMPLIANCE FOR LOCAL FIRE ALARM SYSTEMS 18

STANDARDS AUSTRALIA

Australian Standard Fire detection, warning, control and intercom systems— System

design, installation and commissioning

Part 2: Local fire

1.1 SCOPE This Standard sets out the requirements for the system design, installationand commissioning of local fire detection and alarm systems (i.e not requiring connection

to a monitoring service) and components that are manufactured in accordance with the

AS 1603 suite of Standards and AS 3786, and fire indicator panels complying with

AS 4428.1

These systems are concerned with early warning fire detection and life safety of personsoccupying a single building only and do not provide for the connection of subindicatorpanels

1.2 APPLICATION Local fire alarm systems address those applications betweenresidential dwellings covered by AS 3786 and AS 1670.6, and the buildings covered by

AS 1670.1

1.3 REFERENCED AND RELATED DOCUMENTS A list of the documentsreferenced in and related to this Standard is given in Appendix A

1.4 DEFINITIONS For the purpose of this Standard, the definitions given in

AS 2484.2 and those below apply

1.4.1 Egress path —the specified path followed by occupants to effect exit from the

building in an emergency

1.4.2 Extra low voltage (ELV) — that voltage as defined in AS 3000.

1.4.3 Habitable room — a room used for normal activities, which —

kitchen, dining room, sewing room, study, playroom, family room and sunroom; and

hallway, lobby, photographic darkroom, clothes-drying room, and other spaces of aspecialized nature occupied neither frequently nor for extended periods

1.4.4 Level surface — any surface, roof or ceiling which has a slope of less than 1 in 20 1.4.5 Local fire indicator panel (LFIP) — Control and indicating equipment (CIE)

complying with the requirements of AS 4428.1 where alarm signalling equipment (ASE)complying with AS 4428.6 is not required

1.4.6 Low voltage (LV) — that voltage defined in AS 3000.

1.4.7 Multi-station smoke alarms — smoke alarms complying with AS 3786 which,

when interconnected, all sound when one alarm is activated

1.4.8 Power supply— the portion of the local fire indicator panel (LFIP) which supplies

all voltages necessary for operation of the LFIP

1.4.9 Protected area — an area of a building with an automatic fire detection and alarm

system installed in accordance with this Standard

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1.5 COMPLIANCE WITH OTHER STANDARDS The local automatic fire detection

and alarm system shall comply with the appropriate electrical safety requirementsspecified in AS 3000 and the individual parts of the installation shall comply with theappropriate standards listed in Appendix A

1.6 INTERPRETATION OF SPECIFIED LIMITING VALUES For the purpose ofassessing compliance with this Standard, the specified values herein shall be interpreted inaccordance with the ‘rounding method’ described in AS 2706, i.e the observed orcalculated value shall be rounded to the same number of figures as in the specifiedlimiting value and then compared with the specified limiting value For example, forspecified limiting values of 2.5, 2.50 and 2.500, the observed or calculated value would

be rounded respectively to the nearest 0.1, 0.01 or 0.001 For examples of interpolation ofspecific values in accordance with the rounding method, reference should be made to

AS 2706

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(a) Actuating devices to suit the particular hazard and risk to life or property, or both.Actuating devices shall comply with the relevant product Standards.

Only smoke alarms and heat alarms complying with the requirements for beingenergized from an external direct current source shall be used

(b) Local fire indicator panel

(c) Warning devices to alert building occupants to a fire alarm (See Clause 4.6.)

(d) A strobe located on the outside of the building The strobe shall comply with therequirements of AS 1603.11

2.2 SEPARATION OF SYSTEMS The local fire alarm panel (LFIP) shall be eithercontained in its own enclosure or, where it is combined in one enclosure with other ELVequipment such as a security system, enclosed in a separate and segregated compartmentand the combined system shall be approved by the testing authority as complying with therequirements of AS 4428.1

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Types 1 and 2 — provide fire detection throughout the building.

Types 3 and 4 — provide fire detection in all habitable rooms and egress paths

In systems Type 2 and Type 4 a limit of 50 smoke alarms and heat alarms shall apply in

requirements of AS 3786 Heat alarms shall comply with the requirements of AS 1603.3

3.1.2 Type 1 A Type 1 system is a full system complying with all the requirements of

AS 1670.1, except that there is no requirement for connection to a monitoring service

3.1.3 Type 2 A Type 2 system is a full system complying with the requirements ofType 1, except that smoke alarms and heat alarms may be substituted for smoke and heatdetectors complying with AS 1603.2 and AS 1603.1 in order to utilize their inbuiltsounders to either partially or fully comply with the audible alarm requirements ofClause 4.6

NOTE: Where smoke alarms and heat alarms are implied it is acceptable to substitute smokeand heat detectors mounted on bases with integral sounders

3.1.4 Type 3 A Type 3 system is a partial system utilizing detectors, complying with

AS 1603.1 and AS 1603.2, in all habitable areas and egress paths, together with separatewarning devices complying with the requirements of Clause 4.6 within the protectedareas

3.1.5 Type 4 A Type 4 system is a partial system as per Type 3, except that heatalarms and smoke alarms may be substituted for heat detectors and smoke detectorscomplying with AS 1603.1 and AS 1603.2

As with Type 2 systems, inbuilt sounders may be used to either partially or fully complywith the requirements of Clause 4.6

NOTE: Where smoke alarms and heat alarms are implied it is acceptable to substitute smokeand heat detectors mounted on bases with integral sounders

3.2 ALARM ZONE LIMITATIONS

3.2.1 General A separate alarm zone shall be provided for each 2000 m2 of contiguousfloor area and shall be confined to one floor level

Fire alarm zones to which there is no access from inside the building shall have separatealarm zone indications from those having internal access

3.2.2 Number of actuating devices Actuating devices shall be of a type compatiblewith the LFIP The maximum number of actuating devices shall not exceed the numberapproved for the LFIP and in any case shall not exceed 40 per zone

3.2.3 Concealed spaces Detectors protecting concealed spaces not exceeding 500 m2

may be connected to the alarm circuit on the adjacent floor, provided the total protectedarea and the total number of detectors required does not exceed the alarm zone limitsspecified in Clauses 3.2.1 and 3.2.2

Smoke alarms shall not be used to protect concealed spaces

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clearly visible from the occupied area and close to or clearly indicating the location of thedetector Remote indicators are not required where the concealed space is readilyaccessible and —

(b) is beneath removable flooring (such as computer flooring); or

(c) the detector’s location is indicated at the LFIP

Where detectors are mounted under removable flooring such as computer rooms, a labelshall be affixed to the ceiling or ceiling grid immediately above the detector indicating thelocation of the detector below

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S E C T I O N 4 I N S T A L L A T I O N

R E Q U I R E M E N T S

4.1 GENERAL All equipment installed shall comply with the requirements of therelevant design and construction Standards referred to in Appendix A Equipment shall beinstalled in locations that will not prejudice its performance and reliability Equipmentshall be selected which is suited to the environment in which it is to be located and shall

be of a type complying with the appropriate Australian Standard

Access for servicing all equipment shall be provided

4.2.1 Power source (primary) The LFIP shall be connected to a reliable source ofsupply in accordance with AS 3000 The power source shall be either —

(a) an a.c supply from an electricity authority; or

(b) a source equal in quality and reliability to that specified in Item (a)

The primary power source shall be capable of operating the system without reliance onthe secondary power source (see Clause 4.2.2)

4.2.2 Power source (secondary) The LFIP shall be provided with a secondary powersource, which is capable of operating the system in the event of failure of the primarypower source

The secondary power source shall be rechargeable sealed lead-acid batteries, whichcomply with the requirements of AS 4428.5

The capacity of the batteries and the charging rate of the charger shall be as per

AS 1670.1 except that the battery shall have sufficient capacity to maintain the system for

72 h then for 15 min in alarm

4.3 SEPARATION OF WIRING SYSTEMS The wiring of the fire detection andalarm system and its associated ELV circuits shall be kept separate from all other systems.Segregation of wiring shall be in accordance with the relevant requirements of AS 3000

4.4 CONNECTION TO EXISTING INSTALLATIONS Where the work is anextension of an existing installation, the combined installation shall be thoroughly tested

to ensure that all parts of the installation and equipment are compatible and that it willsatisfactorily perform the required function The new part of the installation shall complywith the installation requirements of this Section

4.5 EQUIPMENT AND ITS LOCATION

4.5.1 General Equipment shall be installed in locations that will not prejudice itsperformance and reliability

4.5.2 Local fire indicator panel The LFIP shall be in a secure position in the buildingand shall be clearly visible and readily accessible for the authorized person or persons

Status lights on the panel shall be clearly observable

A clearance shall be maintained from the enclosure to provide access to the LFIP

All indicators and controls shall be not less than 750 mm nor more than 1850 mm fromthe floor

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