Title

Licensee

Conditions of use This is a licensed electronic copy of a document where copyright is owned or managed by Standards Australia International. Your licence is a single user licence and the document may not be stored, transferred or otherwise distributed on a network. You may also make one paper copy of this document if required.

Web Check-up

AS 2118.61995

Australian Standard

Automatic fire sprinkler systems

Part 6: Combined sprinklerand hydrant

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

This Australian Standard was prepared by Committee FP/4, Automatic SprinklerInstallations. It was approved on behalf of the Council of Standards Australia on14 March 1995 and published on 5 July 1995.

The following interests are represented on Committee FP/4:Asset Services, Department of Administrative ServicesAustralian Building Codes BoardAustralian Chamber of Commerce and IndustryAustralian Chamber of ManufacturesAustralian Fire Authorities CouncilAustralian Fire Protection AssociationAustralian Water and Sewerage AuthoritiesCommonwealth Fire BoardCSIRO Division of Building, Construction and EngineeringDepartment of DefenceFire Protection Industry Association of AustraliaInstitution of Engineers, AustraliaInsurance Council of AustraliaMaster Plumbers and Mechanical Services Association of VictoriaMelbourne WaterNew Zealand Fire Equipment AssociationTelecom AustraliaThe Association of Consulting Engineers, Australia

Review of Australian Standards. To keep abreast of progress in industry, Australian Standards are subjectto periodic review and are kept up to date by the issue of amendments or new editions as necessary. It isimportant therefore that Standards users ensure that they are in possession of the latest ed ition, and anyamendments thereto.Full details of all Australian Standards and related publications will be found in the Standards AustraliaCatalogue of Publications; this information is supplemented each month by the magazine The AustralianStandard, which subscribing members receive, and which gives details of new publications, new editionsand amendments, and of withdrawn Standards.Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia,are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be madewithout delay in order that the matter may be investigated and appropriate action taken.

This Standard was issued in draft form for comment as DR 93292.

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995

Australian Standard

Automatic fire sprinkler systems

Part 6: Combined sprinklerand hydrant

PUBLISHED BY STANDARDS AUSTRALIA(STANDARDS ASSOCIATION OF AUSTRALIA)1 THE CRESCENT, HOMEBUSH, NSW 2140

ISBN 0 7262 9753 4Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.6 1995 2

PREFACE

This Standard was prepared by the joint Standards Australia/Standards New ZealandCommittee on Automatic Sprinkler Installations to be Part 6 of AS 2118. It is the result ofa consensus among representatives on the joint committee to produce it as an AustralianStandard.The revision to AS 2118 includes Standards Australias requirements to keep product andinstallation Standards separate. When complete the series will comprise:AS2118 Automatic fire sprinkler systems

Part 1: StandardPart 2: Wall wetting sprinklers (Drenchers)Part 3: DelugePart 4: ResidentialPart 5: DomesticPart 6: Combined sprinkler and hydrantPart 9: Piping support and installationPart 10: Approval documentation

4118 Fire sprinkler systemsPart 1.1: ComponentsSprinklers and sprayersPart 1.2: ComponentsAlarm valves (wet)Part 1.3: ComponentsWater monitorsPart 1.4: ComponentsValve monitorsPart 1.5: ComponentsDeluge and pre-action valvesPart 1.6: ComponentsStop valves and non-return valvesPart 1.7: ComponentsAlarm valves (dry)Part 1.8: ComponentsPressure reducing valvesPart 1.9: Accelerators and exhaustersPart 2.1: PipingGeneral

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 integral partof a Standard, whereas an informative appendix is only for information and guidance.

Copyright STANDARDS AUSTRALIAUsers of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where theCopyright Act allows and except where provided for below no publications or software produced by Standards Australia may bereproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing fromStandards Australia. Permission may be conditional on an appropriate royalty payment. Requests for permission and information oncommercial software royalties should be directed to the head office of Standards Australia.

Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusivelyin-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia.Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royaltypayment provided such programs are used exclusively in-house by the creators of the programs.

Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever theStandard is amended or revised. The number and date of the Standard should therefore be clearly identified.The use of material in print form or in computer software programs to be used commercially, with or without payment, or incommercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

3 AS 2118.6 1995

CONTENTSPage

SECTION 1 SCOPE AND GENERAL1.1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 NEW DESIGNS AND INNOVATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3 REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.4 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SECTION 2 SYSTEM REQUIREMENTS2.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.2 LOCATION AND ACCESS TO SPRINKLER CONTROL ASSEMBLIES . . 52.3 LOCATION AND ACCESS TO FIRE MAIN ISOLATION VALVES . . . . . 52.4 ACCESS TO FIRE HYDRANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.5 PROTECTION OF SUPPLY PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.6 FIRE MAIN (RING) RETICULATION . . . . . . . . . . . . . . . . . . . . . . . . . . 52.7 PRESSURE REDUCING VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.8 WATER SUPPLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.9 FIRE SERVICE BOOSTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.10 FIRE ALARM INITIATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.11 FIRE ALARM CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.12 MONITORING OF ISOLATING VALVES . . . . . . . . . . . . . . . . . . . . . . . . 7

SECTION 3 PIPES, VALVES AND FITTINGS3.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.2 VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SECTION 4 TESTING4.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.2 PRE-TEST PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.3 HYDROSTATIC TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.4 FLOW TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.5 RECORDING OF TEST RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

APPENDICESA REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9B LOCATION OF FIRE HYDRANTS AND SPRINKLER CONTROL VALVES . . 10C SYSTEM PHILOSOPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13D SYSTEM RESISTANCE CURVE FOR COMBINED SPRINKLER

AND HYDRANT SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18E WIRING SYSTEMS RATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20F TYPICAL SPRINKLER CONTROL ASSEMBLIES AND

PRESSURE CONTROL STATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

First published as AS 2118.6 1995.

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 4

STANDARDS AUSTRALIA

Australian StandardAutomatic fire sprinkler systems

Part 6: Combined sprinkler and hydrant

S E C T I O N 1 S C O P E A N D G E N E R A L

1.1 SCOPE This Standard sets out the minimum requirements for the installation,commissioning and testing of a combined sprinkler and hydrant system, for installation inmultistorey buildings as an alternative option to using separate sprinkler and hydrant systems,or separate sprinkler and hydrant installations utilizing a combined fire main (see AS 2118.1).

1.2 NEW DESIGNS AND INNOVATIONS Any alternative materials, designs, methodsof assembly, procedures and similar that do not comply with the specific requirements of thisStandard, or are not mentioned in it, but give the equivalent results to those specified are notnecessarily prohibited.

1.3 REFERENCED DOCUMENTS A list of referenced documents is given inAppendix A.

1.4 DEFINITIONS For the purpose of this Standard the definitions given in AS 2118.1,AS 2419.1, AS 2484.1, AS 2484.2, AS 3500.0 and that below apply.1.4.1 Combined systeman integrated system of sprinkler and fire hydrant reticulationwhere the sprinkler system is fed from a fire main designed to supply the concurrent waterrequirements of both the sprinkler and hydrant system.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

5 AS 2118.61995

S E C T I O N 2 S Y S T E M R E Q U I R E M E N T S

2.1 GENERAL Except as modified by this Standard, combined systems shall comply withthe requirements of AS 2118.1, AS 2419.1 and AS 2941.

2.2 LOCATION AND ACCESS TO SPRINKLER CONTROL ASSEMBLIES Sprinklercontrol assemblies shall be located within (a) a common fire-rated exit; or(b) a fire-rated room directly accessible from the common fire-rated exit.Sprinkler isolation valves shall be located on each storey.A Sprinkler Stop Valve Inside wall plate shall be affixed externally to the egress door ofthe common fire-rated exit where it discharges to a public place or open area(see Appendix B, for examples of required valve locations).

2.3 LOCATION AND ACCESS TO FIRE MAIN ISOLATION VALVES Access to anyfire main isolation valve shall be from within a fire-rated exit (stairway) or a fire-rated roomdirectly accessible from the fire-rated exit.

2.4 ACCESS TO FIRE HYDRANTS Fire hydrants shall not be located within a lockedenclosure.Hydrants, where located in an enclosure, shall remain accessible at all times.

2.5 PROTECTION OF SUPPLY PIPING Piping between the source of water supply andthe ring main/s shall be subject to the fire resistance and mechanical protection requirementsof AS 2118.1 and AS 2419.1.

2.6 FIRE MAIN (RING) RETICULATION2.6.1 Pipe sizing Piping to which sprinkler installations and fire hydrants are directlyconnected shall be reticulated through the building in the form of ring mains (one ring foreach pressure zone). Piping shall be sized by hydraulic calculation (see AS 2118.1) subjectto the following minimum pipe diameters (a) in buildings not exceeding 25 m effective height . . . . . . . . . . . . . . . . . . DN 100(b) in buildings exceeding 25 m effective height . . . . . . . . . . . . . . . . . . . . . DN 150.The vertical portions of the ring main pipes shall be located within separate fire-rated exits(stairways) or fire-rated riser shafts. In the case of adjoining pressure zones, which do notshare a common horizontal cross connection, each cross connection shall be located withinits own pressure zone.2.6.2 Pressure zones Separate pressure zones shall be provided where(a) the pressure at any sprinkler head exceeds the limitations imposed by AS 2118.1;(b) the pressure at any fire hydrant exceeds the limitations imposed by AS 2419.1; or(c) the effective height of the building exceeds 50 m.The number of pressure zones shall not be less than one for each 50 m rise in buildingheight.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 6

2.6.3 Isolation valves Each pressure zone shall incorporate isolation valves arranged sothat(a) not less than 75% of fire hydrants in that zone; and(b) not less than 50% of fire hydrants at each floor level;can remain operable upon isolation in any fire main (ring) section between valves.

NOTE: See Appendix C, Figures C3 to C5 for typical schematic system configurations.Isolation valves shall be located such that not more than four storeys of sprinklers would beisolated.

2.7 PRESSURE REDUCING VALVES Where pressure reducing valves are incorporatedthey shall be provided with an isolating valve on each side of the pressure reducing valve.

2.8 WATER SUPPLIES2.8.1 Combined system water flow rate The combined system water flow rate shall bethe aggregate of the fire hydrant requirement, in accordance with AS 2419, and the sprinklerrequirement, in accordance with AS 2118.1, taken at the hydraulically most favourablelocation determined in accordance with Appendix D.2.8.2 Source of water supply The system water supply shall be sourced from (a) two separate on-site storage tanks, each tank being not less than 50% of the combined

capacity which is sufficient to provide water to the combined fire hydrant and sprinklersystem for the duration required by AS 2419.1 and AS 2118.1.NOTE: The tanks may be located at high or low level and pumps shall be fitted as required.

(b) two town mains which form part of an interconnected town mains system, each of thetown mains being capable of providing water to the installation at the necessarypressure and flow to permit proper operation, either with or without pumps, having stopvalves so arranged that in the event of a breakdown, anywhere in the system, at leastone of the mains to the installation can remain operative.

(c) one town main and one on-site storage tank each of which shall be capable, with pumpsinstalled if necessary, of providing water at the necessary pressure and flow for properoperation of the combined installation.

2.8.3 Fire mains (feed) A separate fire main (feed) shall be connected to each zone, orwhere a cascade system using pressure reducing arrangements is used, duplicate fire mains(feed) shall be connected to the highest zone.

2.9 FIRE SERVICE BOOSTER Each zone shall be equipped with a booster facility forthe connection of a fire authority pump appliance. The booster facility shall comply with therequirements of AS 2419.1.

2.10 FIRE ALARM INITIATION The sprinkler fire alarm shall be initiated inaccordance with the requirements of AS 2118.1.

2.11 FIRE ALARM CIRCUITS Each fire alarm initiating device shall be wired to a FireIndicator Panel (FIP) constructed in accordance with AS 1603.4.The sprinkler alarm on each floor shall provide a separate indication at the FIP, clearlyidentified as a sprinkler alarm for that particular floor.Sprinkler fire alarm transmission from the FIP to the local fire authority shall be via adedicated landline. Where the FIP contains other detection systems they shall be connectedto the local fire authority in accordance with the requirements of AS 1670.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

7 AS 2118.61995

Wiring between each switch and the FIP shall be in fire-rated wiring, having a systemperformance of at least WS52W, in accordance with AS 3013 (see Appendix E).

2.12 MONITORING OF ISOLATING VALVES Each sprinkler isolation valve, firemain isolation valve or any valve capable of isolating the water supply to the system,excluding valves under the control of the water authority, shall be monitored separately atthe FIP. Monitors shall comply with the requirements of AS 2118.1 and AS 2419.1.Wiring between each switch and the FIP shall be in fire-rated wiring, having a systemperformance of at least WS52W, in accordance with AS 3013.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 8

S E C T I O N 3 P I P E S , V A L V E S A N D F I T T I N G S

3.1 GENERAL Pipes, valves and fittings shall comply with the requirements ofAS 2118.1, AS 2419, and AS 4118 (all parts).

3.2 VALVES Valves and ancillaries in the system shall comply with the requirements ofAS 4118 as follows:(a) Stop valves and non-return valves shall comply with the requirements of AS 4118.1.6.(b) Wet alarm valves shall comply with the requirements of AS 4118.1.2.(c) Pressure reducing valves shall comply with the requirements of AS 4118.1.8.(d) Valve monitors shall comply with the requirements of AS 4118.1.4.

S E C T I O N 4 T E S T I N G

4.1 GENERAL The tests detailed in this Section shall be conducted at commissioningtime and at other times thereafter as required by the regulatory authority.

4.2 PRE-TEST PREPARATION Upon completion the combined system shall be flushedto remove any debris which may have accumulated within the pipework during constructionof the installation.All required cabinets, doors, hold open devices, signs, plans, padlocks, straps and anyrequired on-site documentation shall be complete.

4.3 HYDROSTATIC TEST The system shall be tested to not less than 1700 kPa or1.5 times the maximum working pressure, whichever is the greater. The test shall be appliedfor a duration of not less than 2 h.

NOTE: The sprinkler portions of the system may be tested to 1500 kPa.

4.4 FLOW TESTS A flow test shall be carried out within the fire main (ring) in eachpressure zone to prove that the water supply is capable of meeting the combined flow andpressure requirements of the zone.The pump shall be tested to prove that it is capable of delivering 50% of flow required at65% of the pressure required by the combined system.At each test facility location provision shall be made for a drain to accommodate thedischarge from the test.

4.5 RECORDING OF TEST RESULTS Test results shall be recorded in accordancewith the requirements of AS 2118.1 and AS 2419.1.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

9 AS 2118.61995

APPENDIX A

REFERENCED DOCUMENTS(Normative)

AS1603 Automatic fire detection and alarm systems1603.4 Part 4: Control and indicating equipment1670 Automatic fire detection and alarm systems System design, installation and

commissioning2118 Automatic Fire Sprinkler Systems2118.1 Part 1: Standard2419 Fire hydrant installations2419.1 Part 1: System design, installation and commissioning2484 FireGlossary of terms2484.1 Part 1: Fire tests2484.2 Fire protection and firefighting equipment2941 Fixed fire protection installationsPumpset systems3013 Electrical installationsWiring systems for specific applications3500 National Plumbing and Drainage Code3500.0 Part 0: Glossary of terms4118 Fire Sprinkler Systems4118 1.2 Part 1.2: ComponentsAlarm valves (wet)4118 1.4 Part 1.4: ComponentsValve monitors4118 1.6 Part 1.6: ComponentsStop valves and non-return valves4118 1.8 Part 1.8: ComponentsPressure reducing valves

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 10

APPENDIX B

LOCATION OF FIRE HYDRANTS ANDSPRINKLER CONTROL VALVES

(Normative)

FIGURE B1 LEGEND OF SYMBOLS

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

11 AS 2118.61995

FIGURE B2 LOCATION OF FIRE HYDRANT ANDSPRINKLER CONTROL ASSEMBLIES

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 12

FIGURE B3 SPRINKLER CONTROL ASSEMBLIES LOCATEDWITHIN NOMINATED STAIR

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

13 AS 2118.61995

APPENDIX CSYSTEM PHILOSOPHY

(Informative)

FIGURE C1 SOURCE OF WATER SUPPLY (SIMPLIFIED)COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 14

FIGURE C2 SYSTEM COMPONENT TERMINOLOGY

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

15 AS 2118.61995

FIGURE C3 ZONE PRESSURE CONTROL SCHEME 1

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 16

FIGURE C4 ZONE PRESSURE CONTROL SCHEME 2

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

17 AS 2118.61995

FIGURE C5 ZONE PRESSURE CONTROLSCHEME 3

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 18

APPENDIX D

SYSTEM RESISTANCE CURVE FOR COMBINEDSPRINKLER AND HYDRANT SYSTEMS

(Normative)

D1 SCOPE This Appendix sets out the method for determining system resistance curvesfor combined sprinkler and hydrant systems.

D2 SYSTEM RESISTANCE CURVE EQUATIONS The equations to be used for thedetermination of the system curves are as follows:

For sprinkler only operation . . . . . . . . Ks Qs(P

sP1)0.5

For hydrant only operation . . . . . . . . . Kh QhPh

0.5

whereKs = constant for the sprinkler systemQs = maximum calculated flow rate required for the sprinkler system (in accordance

with the requirements of AS 2118)Ps = pressure at the sprinkler connection to the combined sprinkler/hydrant riser

to maintain Qs aboveP1 = pressure equivalent of the height of the hydraulically disadvantaged sprinkler

array above the hydrant connection to the combined sprinkler/hydrant riser.Kh = constant for the hydrant systemQh = required flow rate for the specified number of hydrantsPh = pressure at the hydrant connection to the combined sprinkler/hydrant riser to

maintain Qh aboveSystem resistance curves can be plotted using the following equations:

For the sprinkler system . . . . . . . . . .

For the hydrant system . . . . . . . . . . .

The resistance curve for the combined sprinkler and hydrant systems is obtained by plottingthe sum of the sprinkler and hydrant flows at common pressures. See Figure D1.The pressure requirements at the pump discharge is the sum of the required combined systempressure, P3 and P4

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

19 AS 2118.61995

where:P3 = pressure equivalent of the height above the pump centre line of the highest

sprinkler in the hydraulically most disadvantaged arrayP4 = pressure loss due to friction in the combined riser, from the pump discharge

to the sprinkler connection calculated at the required combined system flowrate.

FIGURE D1 TYPICAL PRESSURE/FLOW CURVES FOR PUMPS

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 20

APPENDIX E

WIRING SYSTEMS RATING(Normative)

E1 PROTECTION AGAINST EXPOSURE TO FIRE All wiring systems associatedwith the operation of combined sprinkler and hydrant systems shall have a protection againstexposure to fire rating of not less than 120 min. This rating is represented as WS5XW.

E2 PROTECTION AGAINST MECHANICAL DAMAGE Protection against mechanicaldamage shall be provided as listed below. The areas indicated should not be considered asa rigid list to be adhered to with no deviations, rather they should be considered as a guideto the types of areas and causes of damage to be encountered. Details of ways to achieve thegrade of protection can be found in AS 3013.WS5XAreas where physical damage is considered to be unlikely. Examples of these

areas are

(a) masonry riser shafts with strictly limited access;(b) non-trafficable ceiling void areas;(c) inaccessible underfloor areas;(d) internal domestic and office situations where cabling is mounted on walls at

heights above 1.5 m.WS51Areas where physical damage by light impact is considered possible. Examples of

these areas are(a) internal domestic or office situations where cable is mounted on walls at heights

below 1.5 m; and(b) trafficable ceiling void areas where access to building services for maintenance

purposes is required.WS52Areas where physical damage by impact from manually propelled vehicle is

possible. Examples of these areas are(a) passageways and storerooms in domestic, office and commercial locations where

hand trucks and barrows may be used, and cables are mounted at a height ofless than 1.5 m;

(b) plant rooms where only minor equipment is installed; and(c) workshops where repair and maintenance, on small equipment and furniture or

the like is carried out, and cables are mounted at a height of less than 2.0 m.WS53Areas where physical damage by impact from light vehicles is possible.

Examples of these areas are(a) car parks and driveways where cars and other light vehicles are present and

cables are mounted at a height of less than 2.0 m;(b) display areas of items such as white goods, furniture and cars where cabling is

mounted at a height of less than 2.0 m; and(c) storage areas where manually operated devices, such as pallet trucks, may be

operated and cables are mounted at a height of less than 2.5 m.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

21 AS 2118.61995

WS54Areas where physical impact from vehicles with rigid frames or rigid objects, theweight of which does not exceed 2.0 t, is possible. Examples of these areas are(a) small delivery docks where the cabling is mounted below a height of 3.0 m(b) warehouses with pallet storage up to 3.0 m and use of forklift trucks; and(c) heavy vehicle workshops.

WS55Areas were physical damage from impact by laden vehicles or objects the ladenweight of which exceeds 2.0 t. Examples of these areas are(a) loading and delivery docks;(b) fabrication and maintenance areas for medium to heavy engineering; and(c) large high pile storage warehouses with forklift trucks.

Where any WS cabling traverses areas of various protection requirement, and it is neitherviable nor practicable to change the degree of protection at the transition points, the installedcabling shall comply with the highest requirement of protection.

E3 PROTECTION AGAINST HOSING WITH WATER Where the wiring system isrequired to maintain its integrity after exposure to fire and subsequent hosing with water, itshall have the suffix W appended to its rating, i.e. WS5XW.

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.61995 22

APPENDIX F

TYPICAL SPRINKLER CONTROL ASSEMBLIESAND PRESSURE CONTROL STATIONS

(Normative)

FIGURE F1 TYPICAL SPRINKLER CONTROL ASSEMBLY

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

23 AS 2118.61995

FIGURE F2 TYPICAL PRESSURE REDUCING STATION

COPYRIGHT

Lice

nsed

to L

UU M

INH

LUAN

on

25 F

eb 2

002.

Sin

gle

user

licen

ce o

nly.

Sto

rage

, dist

ribut

ion

or u

se o

n ne

twor

k pr

ohib

ited.

AS 2118.6-1995 Automatic fire sprinkler systems - Combined sprinkler and hydrantAS 2118.6-1995 AUTOMATIC FIRE SPRINKLER SYSTEMS - COMBINED SPRINKLER AND HYDRANTPREFACECONTENTSSECTION 1 SCOPE AND GENERAL1.1 SCOPE1.2 NEW DESIGNS AND INNOVATIONS1.3 REFERENCED DOCUMENTS1.4 DEFINITIONS1.4.1 Combined system

SECTION 2 SYSTEM REQUIREMENTS2.1 GENERAL2.2 LOCATION AND ACCESS TO SPRINKLER CONTROL ASSEMBLIES2.3 LOCATION AND ACCESS TO FIRE MAIN ISOLATION VALVES2.4 ACCESS TO FIRE HYDRANTS2.5 PROTECTION OF SUPPLY PIPING2.6 FIRE MAIN (RING) RETICULATION2.6.1 Pipe sizing2.6.2 Pressure zones2.6.3 Isolation valves

2.7 PRESSURE REDUCING VALVES2.8 WATER SUPPLIES2.8.1 Combined system water flow rate2.8.2 Source of water supply2.8.3 Fire mains (feed)

2.9 FIRE SERVICE BOOSTER2.10 FIRE ALARM INITIATION2.11 FIRE ALARM CIRCUITS2.12 MONITORING OF ISOLATING VALVES

SECTION 3 PIPES, VALVES AND FITTINGS3.1 GENERAL3.2 VALVES

SECTION 4 TESTING4.1 GENERAL4.2 PRE-TEST PREPARATION4.3 HYDROSTATIC TEST4.4 FLOW TESTS4.5 RECORDING OF TEST RESULTS

APPENDIX A - REFERENCED DOCUMENTSAPPENDIX B - LOCATION OF FIRE HYDRANTS AND SPRINKLER CONTROL VALVESAPPENDIX C - SYSTEM PHILOSOPHYAPPENDIX D - SYSTEM RESISTANCE CURVE FOR COMBINED SPRINKLER AND HYDRANT SYSTEMSD1 SCOPED2 SYSTEM RESISTANCE CURVE EQUATIONS

APPENDIX E - WIRING SYSTEMS RATINGE1 PROTECTION AGAINST EXPOSURE TO FIREE2 PROTECTION AGAINST MECHANICAL DAMAGEE3 PROTECTION AGAINST HOSING WITH WATER

APPENDIX F - TYPICAL SPRINKLER CONTROL ASSEMBLIES AND PRESSURE CONTROL STATIONS

purchby: Licensed to LUU MINH LUAN on 25 Feb 2002Title: AS 2118.6-1995 Automatic fire sprinkler systems - Combined sprinkler and hydrant