Title AS 1851.12-1995 Maintenance of fire protection equipment - Gaseous fire extinguishing 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 1851.12—1995 Australian Standard Maintenance of fire protection equipment Part 12: Gaseous fire extinguishing systems Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited This Australian Standard was prepared by Committee FP/11, Fire Extinguishing Systems It was approved on behalf of the Council of Standards Australia on 12 December 1994 and published on March 1995 The following interests are represented on Committee FP/11: Australian Chamber of Commerce and Industry Australian Construction Service—Department of the Arts and Administrative Services Australian Fire Authorities Council Australian Fire Protection Association Commonwealth Fire Board Defence Department, Australia Fire Protection Industry Association of Australia Fire Trainers Association of Australia Insurance Council of Australia New Zealand Fire Equipment Association New Zealand Fire Protection Industry Contractors Association Railways of Australia Society of Fire Protection Engineers Australasian Chapter Telecom Australia 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 editi ons as necessary It is important therefore that Standards users ensure that they are in possession of the latest edit ion, and any amendments thereto Full details of all Australi an Standards and related publications will be found in the Standards Australia Catalogue of Publications; this information is supplemented each month by the magazine ‘The Australi an Standard’, which subscribing members receive, and which gives details of new publications, new editi ons and amendments, and of withdrawn Standards Suggesti ons for improvements to Australian Standards, addressed to the head off ice of Standards Australia, are welcomed Noti fi cati on of any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 action taken This Standard was issued in draft form for comment as DR 93173 AS 1851.12—1995 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 12: Gaseous fire extinguishing systems First publi shed as AS 1851.12—1995 PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 7262 9563 AS 1851.12— 1995 PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee FP/11 on Fire Extinguishing Systems as an Australian Standard to provide suitable requirements for the regular maintenance of gaseous systems The objective of this Standard is to provide users of gaseous fire extinguishing systems with the necessary requirements needed in the regular maintenance of such systems Gaseous systems may contain control and indicating equipment (CIE) that complies with AS 1603.4, Automatic fire detection and alarm systems, Part 4: Control and indicating equipment, and is installed in accordance with AS 1670, Automatic fire detection and alarm systems— System design, installation, and commissioning The maintenance provisions of this Standard therefore overlap those for control and indicating equipment contained in AS 1851.8, Maintenance of fire protection equipment , Part 8: Automatic fire detection and alarm systems Where the CIE for a system forms part of a fire indicator panel (FIP) serving other zones as well as the protected enclosure, then maintenance is in accordance with AS 1851.8 and this Standard can be undertaken simultaneously without the need for duplication Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited This Standard has some variance in text from its sister document, AS 1851.8, due to the change in the document style procedures of Standards Australia 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  Copyri ght STANDARDS AUSTRALIA Users of Standards are reminded that copyri ght subsists in all Standards Austr alia publi cati ons and software Except where the Copyri ght Act all ows and except where provided for below no publications or software produced by Standards Australi a may be reproduced, stored in a retr ieval system in any form or transmitt ed by any means without prior permission in writ ing from Standards Australi a Permission may be conditi onal on an appropriate royalt y payment Requests for permission and information on commercial soft ware royalti es should be dir ected to the head off ice of Standards Australi a Standards Austr alia will 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 wit hout payment of a royalty or advice to Standards Austr alia Standards Austr alia wil l also permit the inclusion of its copyright material in computer soft ware programs for no royalt y 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 from 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 print form or in computer software programs to be used commercially, with or without 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 1851.12— 1995 CONTENTS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Page SECTION SCOPE AND GENERAL 1.1 SCOPE 1.2 REFERENCED DOCUMENTS 1.3 DEFINITIONS 4 SECTION GENERAL REQUIREMENTS 2.1 MAINTENANCE OF INSTALLATION 2.2 RECORDS 2.3 PRECAUTIONS 5 SECTION MAINTENANCE PROCEDURES 3.1 WEEKLY 3.2 MONTHLY 3.3 SIX-MONTHLY 3.4 YEARLY 6 7 SECTION MAINTENANCE DOCUMENTATION 4.1 GENERAL 10 4.2 RECORD SYSTEM 10 APPENDIX A SYSTEM— LOGBOOK REPORT 11 AS 1851.12—1995 STANDARDS AUSTRALIA Australian Standard Maintenance of fire protection equipment Part 12: Gaseous fire extinguishing 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 regular maintenance of gaseous fire extinguishing systems, designed and installed in accordance with the appropriate installation Standard Regular maintenance includes inspection and testing procedures The ‘gas’ shall be referred to as the ‘extinguishant’ in this Standard Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 1.2 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 1210 Unfired Pressure Vessels (known as the SAA Unfired Pressure Vessels Code) 1603 Automatic fire detection and alarm systems 1603.4 Part 4: Control and indicating equipment 1670 Automatic fire detection and alarm systems — System design, installation, and commissioning 1851 Maintenance of fire protection equipment 1851.8 Part 8: Automatic fire detection and alarm systems 2030 The approval, filling, inspection, testing and maintenance of cylinders for the storage and transport of compressed gases (known as the SAA Gas Cylinder Code) 2030.1 Part 1: Cylinders for compressed gases other than acetylene 2484 Fire— Glossary of terms 2484.2 Part 2: Fire protection and firefighting equipment 4214 Gaseous fire extinguishing systems 4214.1 Part 1: General requirements 1.3 DEFINITIONS For the purpose of this Standard, the definitions given in AS 1603.4, AS 1670, AS 2484.2, AS 4214.1 and the Standard appropriate to the extinguishant used apply COPYRIGHT S E C T I O N G EN E R AL AS 1851.12—1995 R E Q UI R E M E N T S Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 2.1 MAINTENANCE OF INSTALLATION It is essential that regular maintenance of gaseous systems is undertaken to ensure an operational condition and to prevent leakage or inadvertent discharge Calibrated test equipment and recognized procedures shall be used Regular maintenance is classified into four levels which shall be performed as follows: (a) Weekly, only where the appropriate authority deems it necessary (b) Monthly on all systems (c) Six-monthly on all systems that not incorporate means to determine container contents (d) Yearly on all systems NOTES: Maintenance should be carried out only by persons having qualifications and experience suitable for the particular work in which they are engaged The manufacturer may have additional requirements beyond that specified in this Standard The arrangements for maintenance should ensure that a person is available on call at all times to provide service in the event of any fault developing at the installation 2.2 RECORDS All system attendances, e.g inspection, testing, service and maintenance procedures, shall be systematically recorded by date with signed entries in the logbook maintained on the site (see Clause 4.2) In addition, a copy of all attendance records should be forwarded to the owner or the owner’s agent The property owner or occupier shall maintain a record of maintenance carried out on the gaseous systems The maintenance record system shall contain the classification (weekly, monthly, six-monthly or yearly) and date of maintenance, any defects and any consequent remedial action or advice given by the service person, with any additional action or advice by the service person The maintenance record system shall be available for the property at all times NOTE: The maintenance record system may be in the form of a logbook or a computer-based record system, or other appropriate permanent record system 2.3 PRECAUTIONS Prior to commencing any inspection, testing or maintenance procedures, the service person shall carry out the following precautionary procedures as applicable: (a) Inform the building owner or agent that maintenance is to be carried out (b) Advise the fire control station, where testing will transmit a fire alarm signal (c) Where fitted, close lock-off valve and in addition ensure that all extinguishant actuating circuits are isolated or firing mechanisms are removed to ensure that testing or that other maintenance procedures cannot cause discharge of any extinguishant (d) Set the detection and alarm system in the appropriate test mode and ensure that ancillary facilities, systems and air-handling plant (including smoke exhaust and stairwell pressurization systems, evacuation warning systems, and the like), where they are not to be tested, are isolated to avoid inadvertent operation (e) On completion of any inspection, testing or maintenance procedure, the service person shall ensure that all controls are returned to the normal condition and re-establish the systems integrity NOTE: The action to be taken when any function is isolated should be covered by the maintenance contract The following is recommended: When any section of an installation is to be isolated, the owner or agent should be notified and in turn should advise the appropriate authority COPYRIGHT AS 1851.12—1995 S E C T I O N 3.1 WEEKLY follows: M AI N T E N AN C E P R O C E D U R E S Where required, the weekly maintenance procedure shall be performed as (a) Isolate extinguishant supply and ancillaries in accordance with Clause 2.3 (b) Check the proper operation of all associated visual alarm indicators by initiating a simulated fire alarm on an alarm zone facility Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited The above test shall be carried out in a manner acceptable to the fire control station (c) Check the satisfactory operation of the fire alarm bell (d) Reset alarm zone facility (e) On completion of testing, to re-establish the system’s integrity, ensure that all switches are in the correct operating position Inform the building owner or agent of any items requiring corrective action (f) Record the results of weekly maintenance procedures in the log, including whether the fire alarm signal from the alarm zone facility was received at the fire control station (see Clause 4.2) 3.2 MONTHLY The monthly maintenance procedure shall be performed as follows: (a) Isolate extinguishant supply and ancillaries in accordance with Clause 2.3 (b) Initiate a simulated fire alarm on an alarm zone facility so as to transmit an alarm to the fire control station Check the proper operation of all associated visual alarm indicators Check that the alarm was correctly received at the fire control station The above test shall be carried out in a manner acceptable to the fire control station (c) Check the satisfactory operation of the fire alarm bell (d) Reset alarm zone facility to normal (e) Test each alarm zone facility to confirm its ability to operate the master alarm facility (f) Check that all visual and audible indicators are operating correctly (g) Check that all control and indicating equipment is in a clean and operational condition, and effectively dust sealed (h) Ensure that all fire indicator panels, extinguishant local control stations (LCS), repeater panels and mimic panels are clearly visible and readily accessible (see AS 1670) (i) Simulate fault conditions on all alarm zones to ensure that fault indicators, both audible and visual, where applicable, are operating correctly from each alarm zone facility (j) Check the battery condition by operating the battery test facility for min, and record the battery condition in the log (k) Inspect all extinguishant containers, manual mechanical release mechanisms and all other ancillary equipment to ensure they are secure, undamaged and unobstructed (l) Where applicable, check and record the container gauge pressures Any container showing a loss in pressure exceeding 10% of the nominal filling pressure, adjusted for temperature change from initial fill at the applicable reference temperature, shall be reported to the owner or agent for corrective action (m) Check the function of all extinguishant manual initiate switches and the extinguishant inhibit switch on each LCS COPYRIGHT AS 1851.12—1995 (n) Ensure that all discharge nozzles are not obstructed and are correctly aligned Carry out a visual inspection on all exposed pipework, support and mechanical controls (o) Ensure that all warning and instruction signs, as required, are correctly displayed and unobstructed and that all controls, valves, switches, and the like, are properly identified (p) On completion of testing, to re-establish the system’s integrity, ensure that all controls are returned to the normal condition (q) Record the results of monthly maintenance procedures in the log, including all items requiring corrective action, adjustment and the like (see Clause 4.2) (r) Check that items previously recorded as requiring attention have been attended to, or record the reasons why corrective actions have not been completed (s) Inform the building owner or agent that maintenance is completed and of any items requiring corrective action Obtain all necessary signatures in the log Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 3.3 SIX-MONTHLY The six-monthly maintenance procedure shall be performed as follows: (a) Isolate extinguishant supply and ancillaries in accordance with Clause 2.3 (b) Check and record the amount of extinguishant in each container by weight or liquid level NOTE: Pressures and liquid levels in extinguishant container can vary considerably with temperature change There may be a considerable time delay between changes in ambient temperature and the corresponding changes in the extinguishant container pressure or level Any liquid level measurement should be referenced to a datum, established at a known temperature (c) Perform monthly maintenance procedures in accordance with Clause 3.2, Items (b) to (s), inclusive 3.4 YEARLY The yearly maintenance procedure shall be performed as follows: NOTE: Prior to yearly maintenance procedures, the maintenance provider should give the owner or agent sufficient notice of testing to allow time for witnessing to be arranged (a) Isolate extinguishant supply and ancillaries in accordance with Clause 2.3 (b) Perform monthly maintenance procedures in accordance with Clause 3.2, Items (b) to (o), inclusive (c) Inspect all detectors and sampling points for any condition which is likely to adversely affect their operation, such as deposition of dust or coating of paint (d) Remove at least one detector on each alarm zone circuit and confirm that the fault signal is registered at the appropriate alarm zone facility (e) Determine the sensitivity of all detectors This may take the form of either — (i) the testing of a detector in situ; or (ii) the removal of a detector and its replacement by a detector which has been checked and calibrated by the supplier NOTE: For details of detector testers, see AS 1851.8 (f) Check that an alarm on each detector registers on the correct alarm zone facility NOTE: This may require the owner or agent to provide other personnel to reset or restart ancillary facilities (g) Measure and record the time delay between any detector circuit’s initiation of extinguishant release and receipt of the operation signal at the actuators COPYRIGHT AS 1851.12—1995 (h) (i) (j) (k) Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (l) (m) Check the operation of all remote ancillary control facilities, including door closers, evacuation warning systems, air-handling systems and the like, and ensure that each controlled device can be correctly activated Check the operation of all mechanical release devices Check the operation of all illuminated signs and audible indicators Check the correct operation of the power supply supervision alarm, if applicable, by disconnecting all power supplies to the fire indicator panel Inspect control and indicating equipment components for evidence of deterioration Check and record the amount of extinguishant in each container in the following system types: (i) Carbon dioxide systems, by mass or liquid level (Mass loss in excess of 10% is cause for rejection.) (ii) Inert gas systems (e.g Inergen), by pressure (Pressure loss in excess of 10% is cause for rejection.) (iii) Halogenated hydrocarbon systems (e.g Halon 1301), by mass and pressure or liquid level (Mass loss in excess of 5% or pressure loss in excess of 10% is cause for rejection.) (iv) FM-200 systems, by mass and pressure or liquid level (Mass loss in excess of 5% or pressure loss in excess of 10% is cause for rejection.) (v) NAF S-III systems, by mass and pressure or liquid level (Mass loss in excess of 5% or pressure loss in excess of 10% is cause for rejection.) NOTE: Pressures and liquid levels in extinguishant containers can vary considerably with temperature change There may be a considerable time delay between changes in the ambient temperature and the corresponding change in the extinguishant container pressure or level Any liquid level measurement should be referenced to a datum, established at a known temperature (n) (o) (p) (q) (r) (s) (t) (u) Check and record all container details for compliance with requirements for periodic inspection and pressure testing in accordance with the Standard appropriate to the container used Ensure that all discharge nozzles are not obstructed and are correctly aligned Carry out a visual inspection on all accessible pipework, supports and mechanical controls Non-electrical detection devices and manually operated devices shall be verified in accordance with the manufacturer’s procedure Where applicable, check the electrical resistance of actuators and insulation of actuators to earth and replace them where appropriate Pyrotechnic actuators shall be replaced in accordance with the manufacturer’s specifications Check for correct operation of directional valves Perform a full system function check by initiating detector alarms and checking the response of container valve actuating circuits at the extinguishant containers This check shall include the operation of the valve actuators, where this can be done without discharging extinguishant or damaging the actuator in which case the test shall be carried out using a device to simulate actuation Where various combinations of detector circuits can initiate an extinguishant discharge, each combination shall be checked Verify enclosure volume Check for building alterations, changes in the environment, openings or other factors that could — (i) cause inadvertent discharge of extinguishant; (ii) allow leakage of extinguishant from the protected area; and (iii) require modification to the system COPYRIGHT AS 1851.12—1995 Where the building has been altered, conduct an additional check for compliance with design concentration and, if necessary, conduct a full discharge test NOTE: Leakage rate may be obtained by the fan pressurization technique On completion of testing to re-establish the systems integrity ensure all controls are returned to the normal condition (w) Record the results of yearly maintenance procedures in the log, including details of all equipment that does not pass visual inspection or fails to operate satisfactorily Notify the owner or agent of any deficiencies within the installation and obtain all necessary signatures in the log Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (v) COPYRIGHT AS 1851.12—1995 10 S E C T I O N M AI N T E N AN C E D O C U M E N T A T I O N 4.1 GENERAL Maintenance documentation shall be provided for each gaseous system and shall include the following: (a) Installer’s report as specified in the appropriate installation Standard (b) Installer’s statement, as-installed diagrams, and commissioning test report as specified in AS 1670 for the control and indicating equipment The installer’s statement, as-installed diagrams, and commissioning test report shall be prepared on durable, good quality paper, clearly legible and contained in a plastic cover or, alternatively, bound into the operator’s manual (c) Operator’s manual as specified in AS 1603.4 (d) Log Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited The maintenance documentation given above shall be housed in a secure location at the fire indicator panel, or as otherwise approved by the appropriate authority The documentation shall describe the state of the installation as it currently exists If any changes are made to the installation, the relevant records shall be updated, i.e installer’s statement, as-installed diagrams, operator’s manual, and the like 4.2 RECORD SYSTEM A maintenance record system shall be provided to sequentially register all known alarms, faults, disconnections, discharges and all maintenance and inspection procedures carried out so that there is a composite record of all events related to the installation It shall include the following: (a) Name of owner or agent (b) Name of maintenance organization (c) Identification of the system (d) Details of weekly, monthly, six-monthly and yearly maintenance procedures NOTE: See Appendix A (e) Container pressure report (f) A ‘report’ section for attendances apart from maintenance procedures Where a log book is used, it shall be substantially bound (not in loose-leaf format) and shall have numbered pages in triplicate The log book shall include the signatures of the owner or agent and service person A required distribution of copies printed on each page shall be as follows: (i) Original Owner/occupier/agent (ii) Duplicate Service person (iii) Triplicate Retain in book The maintenance record system shall be available for the property at all times NOTE: The maintenance record system may be in the form of a logbook or a computer-based record system or other appropriate permanent record system COPYRIGHT 11 AS 1851.12—1995 APPENDIX A SYSTEM — LOGBOOK REPORT (Informative) AS 1851.12 Page of MONTH INSPECTION, TESTING, AND MAINTENANCE PROCEDURES Maintenance organization Premises Address NOTES: Give details of all unsatisfactory items in report section Refer to operations manual for commissioning test report Place a [ ] in box where item is satisfactory Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Place a [ x ] in box where item is unsatisfactory Tests not applicable where shaded Periodical Check Item Weekly Fully isolate extinguishant supply Fire alarm signal simulation Fire alarm bell or warning device operation Fire alarm signal received at fire control station Alarm zone facility operation Indicator lights correct operation All alarm bells and signalling devices operation Battery condition CIE operational and clean 10 All FIP, LCS and other panels clearly visible and readily accessible 11 Fault conditions simulation on all alarm zones and ensure — (i) fault annunciators operative (ii) audible/visual indication operative 12 Extinguishant containers, other equipment secure, undamaged 13 Container gauge pressures recorded (Refer report) 14 Discharge nozzles 15 LCS unit operational Monthly Six-monthly Yearly ( continued) COPYRIGHT AS 1851.12—1995 12 Periodical Check Item Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Weekly 16 Signs and controls checked 17 Check and record amount of extinguishant in each container by weight or liquid level 18 Inspect all detectors and sampling points (Fault signal registration for each alarm zone) 19 Detector and sampling point testing, as appropriate 20 Correct operation of all ancillary control facilities 21 Operation of all manual release points 22 Check operation of signs 23 Power supply supervision alarm 24 Control and indicating equipment component inspection for deterioration 25 Container compliance with AS 2030.1 or AS 1210 26 Actuators checked 27 Non-electrical and manually operated detection devices 28 Directional valves operational 29 Full function test 30 All controls returned to normal, extinguishant supply reconnected 31 Building modifications, opening identified 32 Leakage test conducted 33 Correction of items (Refer report) 34 Building owner informed, corrective action identified 35 Time delay recorded COPYRIGHT Monthly Six-monthly Yearly 13 AS 1851.12—1995 DA TE Page of WEEKLY MONTHLY SIX-MONTHLY YEARLY System time delay Designed = s Actual = s Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Container contents by pressures, mass or liquid level 11 16 21 26 31 36 12 17 22 27 32 37 13 18 23 28 33 38 14 19 24 29 34 39 10 15 20 25 30 35 40 REPORT(S) SIGNED: SERVICE PERSON: For owner or agent Print name DATE: Signature COPYRIGHT ... Standard Maintenance of fire protection equipment Part 12: Gaseous fire extinguishing systems First publi shed as AS 1851. 12? ? ?1995 PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA)... Single user licence only Storage, distribution or use on network prohibited AS 1851. 12? ? ?1995 Australian Standard Maintenance of fire protection equipment Part 12: Gaseous fire extinguishing systems... 11 AS 1851. 12? ? ?1995 STANDARDS AUSTRALIA Australian Standard Maintenance of fire protection equipment Part 12: Gaseous fire extinguishing systems S E C T I O N S CO P E A N D G E NE R A