AS 1851 3 1997 maintenance of fire protection equipment au

Title AS 1851.3-1997 Maintenance of fire protection equipment - Automatic fire sprinkler systems Licensee Licensed to LUU MINH LUAN on 25 Feb 2002 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 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AS 1851.3—1997 Australian Standard Maintenance of fire protection equipment Part 3: Automatic fire sprinkler systems This Australian Standard was prepared by Committee FP/4, Automatic Sprinkler Installations It was approved on behalf of the Council of Standards Australia on October 1997 and published on December 1997 The following interests are represented on Committee FP/4: Association of Consulting Engineers, Australia Australian Building Codes Board Australian Chamber of Commerce and Industry Australian Chamber of Manufactures Australian Fire Authorities Council Commonwealth Fire Board Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Department of Defence (Australia) Fire Protection Association Australia Institution of Engineers, Australia Insurance Council of Australia New Zealand Fire Services Property Council of Australia Scientific Services Laboratory Testing interests Review of Australian Standards To keep abreast of progress in industry, Australi an Standards are subject to periodic review and are kept up to date by the issue of amendments or new edit ions as necessary It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto Full details of all Australian Standards and related publications wil l be found in the Standards Australia Catalogue of Publi cations; 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 office of Standards Australia, are welcomed Notification of any inaccuracy or ambiguity found in an Australi an 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 96041 AS 1851.3—1997 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian Standard Maintenance of fire protection equipment Part 3: Automatic fire sprinkler systems Originated as part of AS CA16— 1939 (being 7th edition F.O.C Rules with Amendments) Previous edition AS 1851.3— 1985 Third edition 1997 PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 7337 1600 AS 1851.3 — 1997 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee FP/4, Automatic Sprinkler Installations, to supersede AS 1851.3 — 1985 This Standard is the result of a consensus among representatives on the Joint Committee to produce it as an Australian Standard This edition has been modified to reflect the changes in AS 2118, Automatic fire sprinklers (all parts) since 1985 The objective of this Standard is to provide requirements for routine maintenance for sprinkler systems and for precautions to be taken when systems are rendered inoperative The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies An ‘informative’ appendix is only for information and guidance Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Automatic sprinkler systems provide effective fire protection and have an extremely good record in Australia for controlling and extinguishing fires For effective operation, it is essential that regular testing and maintenance be carried out on such systems Any fault which may render the system fully or partially inoperative should be rectified with the minimum of delay The maintenance requirements for pumpsets associated with automatic fire sprinkler systems can be found in AS 1851.14, Maintenance of fire protection equipment , Part 14: Pumpset systems  Copyri ght STANDARDS AUSTRALIA Users of Standards are reminded that copyri ght subsists in all Standards Australi a publi cati ons and software Except where the Copyri ght Act allows and except where provided for below no publi cati ons or software 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 condit ional on an appropriate royalty payment Requests for permission and information 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 its copyri ght material in computer software 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 current 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 3 AS 1851.3 — 1997 CONTENTS Page Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited SECTION SCOPE AND GENERAL 1.1 SCOPE 1.2 NEW DESIGNS AND INNOVATIONS 1.3 APPLICATION 1.4 REFERENCED DOCUMENTS 1.5 DEFINITIONS 4 4 SECTION PRECAUTIONS TO BE TAKEN WHEN A SYSTEM IS RENDERED INOPERATIVE 2.1 PRECAUTIONS 2.2 CURTAILMENT OF WATER SUPPLIES 2.3 PRECAUTIONS FOR WATER SUPPLY CURTAILMENT 5 SECTION ROUTINE MAINTENANCE 3.1 GENERAL 3.2 ASSOCIATED ALARM EQUIPMENT 3.3 LEVELS OF INSPECTION, TESTING AND MAINTENANCE 3.4 FREQUENCY 6 6 SECTION WET SYSTEMS—LEVELS TO 4.1 MAINTENANCE LEVELS TO 4.2 MAINTENANCE LEVEL 10 SECTION SYSTEMS OTHER THAN GENERAL SYSTEMS 5.1 GENERAL 11 5.2 PHILOSOPHY 11 APPENDICES A ADDITIONAL PRECAUTIONS B DRY SYSTEMS C DELUGE SYSTEMS AND WATER SPRAY SYSTEMS D PRE-ACTION SYSTEMS E TAIL-END DRY SYSTEMS 12 13 14 15 16 AS 1851.3 — 1997 STANDARDS AUSTRALIA Australian Standard Maintenance of fire protection equipment Part 3: Automatic fire sprinkler systems S E C T I O N S CO P E A N D G E NE R A L 1.1 SCOPE This Standard sets out requirements for the routine maintenance of automatic fire sprinkler systems It also sets out the precautions to be taken when a system is rendered inoperative Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTES: Although not classified as routine maintenance, a check on a regular basis is necessary to ensure that the installed system characteristics as shown on the block plan are adequate to protect the current occupancy and storage, and that sprinkler protection extends to all communicating sections of the building Reference should be made to AS 2118.8 for minor modifications to installed systems Maintenance requirements for residential and domestic sprinkler systems are given in AS 2118.4 and AS 2118.5 respectively 1.2 NEW DESIGNS AND INNOVATIONS Any alternative materials, designs, methods of assembly and procedures that not comply with the specific requirements of this Standard, or are not mentioned in it, but give equivalent results to those specified, are not necessarily prohibited However, the specified approval remains the prerogative of the regulatory authority 1.3 APPLICATION This Standard applies to all automatic fire sprinkler systems other than residential and domestic The procedures set out in this Standard should be carried out or directly supervised by personnel who can demonstrate experience and competency in this class of work 1.4 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 1674 1674.1 Safety in welding and allied processes Part 1: Fire precautions 1851 1851.8 Maintenance of fire protection equipment Part 8: Automatic fire detection and alarm systems 2118 Automatic fire sprinkler systems (all parts) 2484 2484.2 Fire—Glossary of terms Part 2: Fire protection and firefighting equipment 1.5 DEFINITIONS For the purpose of this Standard, the definitions in AS 2118 (all parts) and AS 2484.2 apply COPYRIGHT S E C T I O N W H E N AS 1851.3 — 1997 P RE C A U T I ON S T O B E T A K E N A S Y S T E M I S R E N D E R E D I NO P E R A T I V E 2.1 PRECAUTIONS The following precautions shall be taken when a system is rendered partially or fully inoperative: (a) The building owner or his or her representative shall be notified (b) Before work commences and after work is completed notification shall be given to the fire station to which the system is connected or the nearest fire station if there is no brigade connection (c) Where on-site welding is unavoidable, work shall be carried out in accordance with the requirements of AS 1674 NOTE: For additional precautions, refer to Appendix A Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 2.2 CURTAILMENT OF WATER SUPPLIES Where a water supply is curtailed for any protracted period, e.g as in time of drought, special attention shall be given to the maintenance of any other water supplies 2.3 PRECAUTIONS FOR WATER SUPPLY CURTAILMENT During periods of water supply curtailment it is recommended that all fire extinguishing appliances be held in special readiness for immediate use, and that a watchman be on duty throughout nonworking hours COPYRIGHT AS 1851.3 — 1997 S E C T I O N R O U T I N E M AI N T E N A N C E 3.1 GENERAL All sprinkler systems shall be inspected, tested and maintained at the periodic intervals specified in this Section Records of routine maintenance shall be kept in a log held at the installation control assembly for this purpose Details of all defects observed during inspection and tests, and the date of their rectification, shall be recorded in this log Any deficiency in a system shall be reported to the building owner or his or her representative at the completion of the service and shall be rectified with the minimum of delay Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Prior to testing, the fire brigade shall be advised that a test is to be conducted On completion of the test, the fire brigade shall be contacted to check that the fire call was received and to advise that the installation has been reset and left in an operative condition Where premises are protected by multiple installations, each individual installation shall be fully operational and checked with the fire brigade before work is started on the next installation 3.2 ASSOCIATED ALARM EQUIPMENT Where facilities are installed to enable continuous automatic monitoring of the fire line, the test in Clause 3.1 shall be carried out in a manner prescribed by the fire brigade Where sprinkler alarm signals are connected to automatic fire alarm and indicating equipment, such equipment shall be maintained in accordance with AS 1851.8 3.3 LEVELS OF INSPECTION, TESTING AND MAINTENANCE Inspection, testing and maintenance shall be conducted at five levels, as follows: (a) Level routines, consisting of testing and recording (b) Level routines, consisting of Level routines plus additional tests and adjustments which not necessitate taking the system out of operation (c) Level routines, consisting of Level routines plus additional testing and inspection procedures with consequential adjustments necessary to ensure correct function These routines may require the system to be taken temporarily out of operation, but shall enable rapid reinstatement to full operating condition (d) Level routines, consisting of Level routines plus the overhaul and test procedures which may necessitate the system being out of service for short periods (e) Level routines, consisting of inspection, pressure testing and testing for operating characteristics of sprinklers 24 years of age or older, and then at six-yearly intervals after the initial Level routine The precautions outlined in Section shall be observed when Level or Level routines are undertaken 3.4 FREQUENCY be as follows: The frequency of inspection, testing and maintenance routines shall (a) Level routines weekly (b) Level routines quarterly (c) Level routines annually (d) Level routines at three-yearly intervals (e) Level routines at six-yearly intervals after the initial Level routine COPYRIGHT S E C T I O N W E T AS 1851.3 — 1997 S Y S T E M S — L E V E L S 4.1 MAINTENANCE LEVELS TO given in Table 4.1 T O The maintenance levels to shall be as TABLE 4.1 MAINTENANCE SCHEDULE FOR WET SYSTEMS LEVELS TO Frequency Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Item Component or functi on Acti on required Weekly (Level 1) General Check that control valve/pump areas are unobstructed and are not used for storage Pressure gauges Record reading fr om each pressure gauge prior to functions to Alarm valve Operate alarm valve by opening the 15 mm test valve or by other approved means Alarms Check for correct operati on of local and remote alarms and record result s Alarm valve Close 15 mm or other test valve and ensure that the alarm valve has reseated Installati on pressure Restore install ation pressure where necessary Pressure gauges Record reading fr om each pressure gauge after functi ons to Control and associated valves Reset and secure valves in the open posit ion or the closed positi on as appropri ate Tanks Where tanks are install ed, check that tank is full and proceed wit h Item 11 10 Automati c infl ow valve and water level indicator device Check corr ect operati on of automatic inflow valve(s) and water level indicator device(s) of tank 11 Pressure tanks Where pressure tanks are install ed, check for correct water level and proceed with It ems 13 and 14 12 Air pressure or water level warning device Check pressure tank air pressure and/or water level warning device(s) for corr ect operation 13 Air compressor and water pump Check pressure tank air compressor and water pump for correct operation 14 Block plan and emergency instructions Check that block plan, location plate, and emergency instr ucti ons are adequate for the system and are legible 15 Indicator panel Check corr ect operati on of indicators at panel — 16 Water fl ow alarm swit ches Test each water fl ow alarm swit ch by the operation of the fl ow swit ch test valve to simulate a sprinkler operation Check corr ect operati on at indicator panel — 17 Spare components Check spare sprinklers and sprinkler spanner( s) — Quarterly (Level 2) Annually (Level 3) 3-yearly (Level 4) (continued ) COPYRIGHT AS 1851.3 — 1997 TABLE 4.1 (continued ) Frequency Item Acti on required Weekly (Level 1) Quarterly (Level 2) 18 Isolation valves Operate and check all system and water supply valves — 19 Non-return valves Check that all water supply non-r eturn valves are corr ectl y seated — 20 Strainer Clean the strainer and oil the external alarm water motor — 21 Monitori ng of isolation valves Check for correct operati on of any facil it ies installed for the continuous monitori ng of isolation valves — Spray booths Clean or replace sprinkler as appropri ate NOTE: The frequency of cleaning and recoating of the sprinklers depends on the amount of spraying being done and could be on a once or twice a week basis, at the same ti me as the cleaning of booth is requir ed by spray painti ng regulati ons In these circumstances, the owner or occupier could best carr y out this operati on — 23 Pressure reducing valves Operate all pressure-r educing valves and check for corr ect operati on under flow condit ions Check pressure readings on the low pressure side of the valves for change fr om the ori ginal test readings — 24 Fire brigade booster connecti on Check access, availabili ty and signage, clean caps and plugs ensuri ng caps are free and lubri cate threads on caps and plugs — 25 Kitchen hoods and ducts Inspect and clean sprinklers — — 26 Water supply flow test Test water supply to verif y that the system pressure/f low requir ements are sati sfied — — 27 Alarm valve Operate alarm valve(s) by opening the remote test valve Check that the response ti me is not greater than — — 28 Wiri ng connection Check condit ion of bri gade/monit oring station wiri ng — — 29 Pressure sensors Physically check all pressure sensors to ensure that all components are fr ee of corr osion, securely mounted, correctly labell ed and in working order — — 30 Auxili ary fir etri p and alarm swit ches Check electr ic signal is generated at output of swit ch NOTE: It is recommended that the buil ding owner give considerati on to the coordinated testi ng of all interacti ng fi re protecti on systems, e.g airhandling — — 31 Water storage tanks Inspect water storage tanks for defects NOTE: Draining is not normall y requir ed for this inspecti on — — 22 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Component or functi on Annually (Level 3) 3-yearly (Level 4) Refer It em 48 (continued ) COPYRIGHT TABLE AS 1851.3 — 1997 4.1 (continued ) Frequency Item Acti on required Weekly (Level 1) Quarterly (Level 2) Pump priming tanks Check for correct operati on of automatic fi ll ing and starti ng variants Inspect internally and externally for structural integrit y, fr eedom fr om corr osion and internal accumulation of foreign matter — — 33 Piping and spri nklers Examine the exposed water distri buti on system including pipework, pipe supports, spri nklers, valves and heat collectors Where corr osion, rusting, lack of support s or other damage is indicated, a more extensive examinati on of the distr ibution system shall be carr ied out, viz check within ceil ing and fl oor spaces and ducts Report defects found — — 34 Anti -f reeze systems Inspect all anti -f reeze systems and devices including tail- end valve sets, and check anti -f reeze solution levels — — 35 Alarm valve Fit new alarm valve seati ng or port seati ng, check and clean annulus groove and outlet port s, poli sh and lubricate seating spindle/shaft, and check operation of compensator valve if fi tt ed Fit a new alarm valve face plate gasket — — 36 Drain and test valve washers Fit new drain and test valve washers and examine seating — — — 37 Alarm cock plug type Remove alarm cock barrels, clean, lap in, grease and reinstall — — — 38 Jacking pump path cocks Fit new pump path cock washers and inspect seati ngs — — — 39 Gland packing Fit new gland packings for path cocks, drain and test cocks, main stop valve and hand pump — — — 40 Direct brigade alarm tr ansmit ter Clean out well of direct brigade alarm, clear water jet, renew gasket, flush drain pipe, remove gear tr ain, check operation of main spindle, remove excess grease and then lubricate — — — 41 Local water motor alarm Clean strainer on local alarms, clear water jet, fl ush drain, renew gasket, check operation of main spindle and str iker, remove excess grease and then lubricate — — — 42 Non-return valves Renew water supply non-return valve seatings and gaskets, check seating and spindle — — — 43 Retard chamber and drain pipe Check operation of retard chamber and drain pipe — — — 44 Gauges Check all pressure gauges against cali brated gauge — — — 32 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Component or functi on Annually (Level 3) 3-yearly (Level 4) (continued ) COPYRIGHT AS 1851.3 — 1997 10 TABLE 4.1 (continued ) Frequency Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Item Component or functi on Acti on required 45 Valves Overhaul in accordance wit h suppliers’ specif ications all pressure-reducing valves, deluge valves, tail -end dry pipe valves, and any other special valves that may be installed 46 Anti -f reeze systems Drain tail- end anti- fr eeze systems including individual spri nkler heads on droppers and refi ll wit h new solution Weekly (Level 1) Quarterly (Level 2) Annually (Level 3) — — — — — — — — — — — — 3-yearly (Level 4) Inspect, internall y and externally, for structural integri ty, fr eedom from corr osion and internal accumulati on of foreign matt er 47 Water storage tanks and associated equipment 48 Kitchen hoods and ducts Change sprinklers in hoods Inspect and clean sprinklers in ducts 49 Recommissioning Ensure all valves are in the operati onal positi on and that the system is operati onal 50 Recording Record maintenance in log NOTE: While this has normall y required draining of the tank, it is recognized that there may be other means of complying with this requirement 4.2 MAINTENANCE LEVEL The maintenance level shall be as given in Table 4.2 TABLE 4.2 MAINTENANCE SCHEDULE FOR WET SYSTEMS—LEVEL Frequency Item Component or function Action required Sprinklers 24 years or older Remove a representative sample of not less than 10 sprinklers Inspect, pressure test, and test for operating characteristics High temperature sprinklers exceeding a nominal temperature rating of 182°C Replace all sprinklers COPYRIGHT At 5-yearly intervals after the initial Level routine (Level 5) 11 AS 1851.3 — 1997 S E C T I O N S YS T E M S O T HE R G E N E R A L S Y S T E M S T H A N 5.1 GENERAL There are several types of special systems which require periodic inspection, testing and maintenance Owing to the wide diversity of these systems and the need for the test procedures to be individually tailored to suit, specific requirements are not laid down here The designer of such systems shall ensure that a comprehensive maintenance schedule is provided to the owner for the system ‘as installed’ 5.2 PHILOSOPHY In establishing a maintenance maintenance contained in Section should be followed schedule, the philosophy of Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTE: Guidelines for inspections, testing and maintenance of some systems other than General Systems are given in Appendices B to E COPYRIGHT AS 1851.3 — 1997 12 APPENDIX A ADDITIONAL PRECAUTIONS (Informative) Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited The following precautions should be observed as far as is practicable whenever an inoperative condition is planned or occurs in an emergency: (a) Under all circumstances as much of the system should be kept as fully operational as is practicable Should the work extend over a number of days or weeks, the system should be reinstated as far as practicable at the end of each working day (b) Where the system is to be left impaired outside working hours, consideration should be given to the employment of a watchman at the premises for the period of impairment (c) Whenever practicable, system impairments should be undertaken when production machinery is inoperative (d) Smoking in the vicinity of the subject areas should be prohibited during the period of impairment (e) Responsible senior department/tenancy representatives should be notified so that fire extinguishing appliances can be held in special readiness for immediate use with an adequate number of trained personnel available to use them if required (f) The building owner or the building owner’s representative should notify the insurer, the insurance broker or the insurance agent (g) All needed equipment and materials should be on hand and all work possible should be done prior to isolation of the fire protection equipment (h) Hot cutting and welding should not be performed on a sprinkler system in situ or in an area where the fire protection equipment is impaired (i) All sources of ignition should be avoided COPYRIGHT 13 AS 1851.3 — 1997 APPENDIX B DRY SYSTEMS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (Informative) B1 SCOPE This Appendix sets out guidelines for maintenance of dry systems B2 LEVEL ROUTINE The Level routine consists of the following procedure: (a) Check air compressor operation and storage pressure limits (b) Record air pressure readings (c) Check belts on compressor motors (d) Check compressor oil level (e) Check operation of all low pressure alarms (f) Drain condensation from storage cylinder (g) Check pressure regulator and drain condensate bowl (h) Wet test/actuate alarms in accordance with the system design requirements (i) Carry out requirements of Level routine for wet systems as applicable B3 LEVEL ROUTINE The Level routine consists of the Level routine together with the following procedure: (a) Check all installation low point drains for condensation (b) Operate alarm valve seat as follows: (i) Isolate alarm valve from system (ii) Operate air detection system to lift dry alarm valve seat (c) Check correct operation of accelerator or exhauster (d) Fit new compressor drive belts on a quarterly basis (e) Service air dryer (f) Carry out all Level routine requirements for wet systems as applicable B4 LEVEL ROUTINE The Level routine consists of the Level routine together with the Level routine requirements for wet systems (see Table 4.1) as applicable B5 LEVEL ROUTINE The Level routine consists of the Level routine together with the following procedure: (a) Fit a new main diaphragm in dry alarm valve (b) Carry out all Level routine requirements for wet systems (see Table 4.1) as applicable COPYRIGHT AS 1851.3 — 1997 14 APPENDIX C DELUGE SYSTEMS AND WATER SPRAY SYSTEMS (Informative) C1 SCOPE This Appendix sets out guidelines for maintenance of deluge systems and water spray systems C2 METHODS OF OPERATION In addition to manual operation, there are three methods of automatic operation, viz (a) Compressed air detection (b) Water detection (c) Electrical detection C3 ELECTRICAL DETECTION SYSTEMS Electrical systems in deluge or water spray systems should be tested and maintained in accordance with AS 1851.8 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited C4 LEVEL ROUTINE The Level routine consists of the following procedure: (a) Actuate alarms in accordance with the system design requirements (b) Record air pressure readings where applicable (c) Carry out requirements of Level routine for wet systems (see Table 4.1) as applicable C5 LEVEL ROUTINE The Level routine consists of the Level routine together with the Level routine for wet systems (see Table 4.1) in accordance with the system design requirements C6 LEVEL ROUTINE The Level routine consists of the Level routine together with the following procedure: (a) Check that all open discharge devices are clear and operational (b) Check system operating mechanism by the automatic release and manual release (c) Carry out all Level routine requirements for wet systems (see Table 4.1) as applicable C7 LEVEL ROUTINE The Level routine consists of the Level routine together with the following procedure: (a) Where fitted, renew main diaphragm in deluge valve (b) Carry out all Level routine requirements for wet systems (see Table 4.1) as applicable COPYRIGHT 15 AS 1851.3 — 1997 APPENDIX D PRE-ACTION SYSTEMS (Informative) D1 SCOPE This Appendix sets out guidelines for maintenance of pre-action systems D2 ELECTRICAL D ETEC TION SYSTEMS Electr ical detection systems incorporated in pre-action systems should be tested and maintained in accordance with AS 1851.8 D3 LEVELS OF MAINTENANCE The pre-action system should be tested and maintained as follows: Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (a) Level routine In addition to the Level (see Appendix B), carry out the following procedure: routine for dry systems (i) Check all pre-action control valves for correct operation (ii) During monthly test of the fire alarm system AS 1851.8, test the solenoid valve(s) (b) Level routine In addition to the Level routine, carry out Level routine as for dry systems where applicable (see Appendix B) (c) Level routine In addition to the Level routine, carry out Level routine as for dry systems where applicable (see Appendix B) (d) Level routine The Level routine consists of the Level routine together with the following procedure: (i) Carry out Level routine as for dry systems (see Appendix B) (ii) Reset the system COPYRIGHT AS 1851.3 — 1997 16 APPENDIX E TAIL-END DRY SYSTEMS (Informative) D1 SCOPE This Appendix sets out guidelines for maintenance of tail-end dry systems Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited D2 LEVELS OF MAINTENANCE Level 1, Level 2, Level and Level routines for dry systems should be carried out in accordance with Appendix B COPYRIGHT ... prohibited AS 1851. 3? ? ?1997 Australian Standard Maintenance of fire protection equipment Part 3: Automatic fire sprinkler systems This Australian Standard was prepared by Committee FP/4, Automatic... 12 13 14 15 16 AS 1851. 3 — 1997 STANDARDS AUSTRALIA Australian Standard Maintenance of fire protection equipment Part 3: Automatic fire sprinkler systems S E C T I... Standard Maintenance of fire protection equipment Part 3: Automatic fire sprinkler systems Originated as part of AS CA16— 1 939 (being 7th edition F.O.C Rules with Amendments) Previous edition AS 1851. 3? ??