MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG, NEW DELHI

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1 MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG, NEW DELHI वय ऩक ऩरर ऱन मस द हम र स दर भ :स ईड 22:4/ट -29,34,38 15जनवर 2019 तक न क सममतत : अग नन शमन व षय सममतत, स ईड 22 प र प क कनत भ : 1 मसव ऱ इ ज तनयर व र ग ऩररषद क र च रखन ऱ सदस य_ 2 स ईड 22ए स ईड 22:4 क सर सदस य 3 र च रखन ऱ अन य तनक य मह दय(य ), ननम नलरख त भ नक क भस द स रग न: ह : प रऱ ख स ख य श षभक स ईड 22(13537)WC अग नन स स कए स तकप रण ऱ र ग 18तनव ष ट/तनगभत उऩकरण (आईएसओ : 2009क अ ग करण)ICS स ईड 22(13538) WC अग ननस स क स तकप रण ऱ र ग 22 नमऱक ओ क मऱए ध म रस स कउऩकरण (आईएसओ :2007क अ ग करण) ICS स ईड 22(13539)WC अग नन स स क ए स तक प रण ऱ र ग 27 :क र भन-म न ऑक स इडस दक ए कग पऩक ऊष म स दकक स य ग स ध म र स दक क उऩय ग कर बर न द प रक र अग ननस स क (आईएसओ : 2009 क अ ग करण)ICS क ऩम इस भ नक क भस द क अवर कन कय औय अऩन सम भ नतम मह फत त ह ए ब ज कक मदद मह भ नक क र ऩ भ प रक ल त ह त इन ऩय अभर कयन भ आऩक व मतवस म अथव क य फ य भ क म 2 कद न इम आ सकत ह सम भनतम ब जन क अ नतभ नतथथ:15फरवर सम भतनत मदद क ई ह त क ऩम अध हस त 1 य क उऩयलरख त ऩत ऩय स रग नय प भ ट भ ब ज म ced22@bis.gov.inऩयईभ र कय द मदद क ई सम भvनत प र प तर नह ह त ह अथव सम भऩनत भ क वर ब ष सम फपन ध त र दट ह ई त उऩय क त प रर क मथ वत अ नतभ र ऩ ददम ज एग मदद समम त त तकन क प रक नत क ह ई त ववषम सलभनत क अध म क ऩय भ श स अथव उनक इच छ त ऩय आग क क मशव ह क लरए ववषम सलभनत क ब ज ज न क फ द प रर क अ नतभ र ऩ द ददम ज एग मह प रर ब यत म भ नक बमय य क व फस इट ऩय ब ह धन मव द स रग न : उऩयलर ख त बवद म, ह0 (स जय ऩ त) प रम ख (मसव ऱ इ ज तनयर )

2 MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG, NEW DELHI DRAFTS IN DOCUMENT DESPATCH ADVICE WIDE CIRCULATION Date CED 22 :4 /T- 29, 34,38 15 January 2019 TECHNICAL COMMITTEE: Fire Fighting Sectional Committee, CED 22 ADDRESSED TO: 1. All Members of Civil Engineering Division Council, CEDC 2. All Members of CED 22 & CED 22:4 3. All others interested Dear Sir (S), Please find enclosed the following documents: Doc No. Title CED22(13537)WC CED 22 (13538)WC CED22(13539)WC Fire Detection and Alarm Systems Part 18 : Input/Output Devices (Adoption of ISO : 2009) ICS Fire Detection and Alarm Systems Part 22 : Smoke-detection Equipment for Ducts (Adoption of ISO : 2017) ICS Fire detection and alarm systems -- Part 27: Point type fire detectors using a smoke sensor in combination with a carbon monoxide sensor and, optionally, one or more heat sensors (Adoption of ISO : 2009) ICS Kindly examine the draft and forward your views stating any difficulties which you are likely to experience in your business or profession, if this is finally adopted as National Standard. Last Date for comments: 15 February Comments if any, may please be made in the format as given overleaf and mailed to the undersigned at the above address or to ced22@bis.gov.in In case no comments are received or comments received are of editorial nature, you will kindly permit us to presume your approval for the above document as finalized. However, in case comments of technical in nature are received then it may be finalized either in consultation with the Chairman, Sectional Committee or referred to the Sectional Committee for further necessary action if so desired by the Chairman, Sectional Committee. The document is also hosted on BIS website Thanking you, Yours faithfully, Sd/- Encl: as above (Sanjay Pant) Head (Civil Engg.)

3 FORMAT FOR SENDING COMMENTS ON THE DOCUMENT [Please use A4 size sheet of paper only and type within fields indicated. Information in column (3) should include reasons for comments, technical references and suggestions for modified wording of the clause when the existing text is found not acceptable. Comments through shall be appreciated.] Doc. No.:CED22()WCBIS Letter Ref: CED 22 :4 /T- Dated: 15 January Title: Name of the Commentator/ Organization: Clause No. withpara No. ortable No. or Figure No. commented (as applicable) Type of comment Technical OR Editorial Abbreviation of the commentator Comments/Modified Wordings Justification for the Proposed Change

4 FOR COMMENTS ONLY DOC: CED 22(12359)WC Draft Indian Standard Fire Detection and Alarm Systems Part27:Point type fire detectors using a smoke sensor in combination with a carbon monoxide sensor and, optionally, one or more heat sensors (Adoption of ISO :2018) ICS Not to be reproduced or used as Last Date for Comments-15 February 2019 STANDARD without permission of BIS Fire Fighting Sectional Committee, CED 22 NATIONAL FOREWORD (Adoption clause would be added later) This Indian Standard (Part 27) is identical with ISO : 2018 Fire Detection & Alarm Systems Part 27 : Point type fire detectors using a smoke sensor in combination with a carbon monoxide sensor and, optionally, one or more heat sensors' issued by the International Organization for Standardization (ISO). This standard is published in various parts. Other parts in this series are: Part 2 Control and indicating equipment Part 3 Audible alarm devices Part 4 Power supply equipment Part 5 Point-type heat detectors Part 6 Carbon monoxide fire detectors using electro - chemical cells Part 7 Point-type smoke detector using scattered light, transmitted light or ionization Part 8 * Point-Type Fire Detectors Using a Carbon Monoxide Sensor in Combination with a Heat Sensor Part 10 * Point-type flame detectors Part 11 Manual call points Part 12 Line type smoke detectors using a transmitted optical beam Part 13 * Compatibility assessment of system components Part 15 Multisensor fire detectors Part 16 Sound system control and indicating equipment Part 17 Short-circuit isolators Part 18 * Input/output devices Part 20 Aspirating smoke detectors Part 21 * Routing equipment Part 22 * Smoke detection equipment for ducts Part 23 Visual alarm devices Part 24 * Fire alarm loudspeakers Part 25 * Components using radio transmission paths Part 29 * Video fire detectors *These standards are being adopted by BIS/India; drafts of which have since been circulated earlier. 1

5 A fire detection and fire alarm system is required to function satisfactorily not only in the event of a fire, but also during and after exposure to conditions likely to be met in practice such as corrosion, vibration, direct impact, indirect shock and electromagnetic interference. Some tests specified are intended to assess the performance of the fire detectors under such conditions. The performance of fire detectors is assessed from results obtained in specific tests; this document is not intended to place any other restrictions on the design and construction of such detectors. Smoke detectors using ionization or optical sensors, and complying with ISO , are well established for the protection of life and property. Even so, they can respond to stimuli other than smoke and, in some circumstances, can be prone to false alarms. False alarm rates are usually minimised by careful application, giving some limitations in use, and occasionally with a reduction in protection provided. It is generally accepted that fire detectors using carbon monoxide (CO) sensors alone, while suitable for the detection of smouldering fires involving carbonaceous fuels, can be relatively insensitive to free-burning fires supported by a plentiful supply of oxygen. This limitation can be largely overcome by the inclusion of a heat sensor whose output is combined in some way with that of the CO sensor. Performance requirements for CO fire detectors and for CO and heat detectors can be found in ISO and ISO respectively. Although the CO and heat detector is capable of responding to free-burning fires, it can still be relatively insensitive to low-temperature fires that produce large amounts of visible smoke but low concentrations of CO and little heat. This limitation prevents the CO and heat detector being a true replacement for a smoke detector in life safety applications. Many false alarm sources that affect smoke detectors do not produce CO. It is possible therefore that by adding a CO sensor to a smoke detector, and combining its output in some way with that of the smoke sensor, the incidence of false alarms be reduced. This reduction can be achieved while simultaneously providing the ability to respond to a broader range of fire types than is possible with either a smoke or CO detector alone. It is possible to improve the performance even further by adding a heat sensor to assist in the response to clean-burning high energy fires. This improvement is seen as secondary to the overall performance and for this reason the heat sensor is treated as optional for compliance with this document. The text of ISO Standard has been approved as suitable for adoption/publicationas an Indian Standard without deviations. Certain conventions and terminologies are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following: a) Wherever the words International Standard appear referring to this standard, they should be read as Indian Standard. b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker. In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their respective places, are listed below along with their degree of equivalence for the editions indicated: 2

6 International Standard ISO Fire detection and alarm systems Part 5: Pointtype heat detectors ISO Fire detection and alarm systems Part 7: Pointtype smoke detectors using scattered light, transmitted light or ionization IEC Environmental testing Part 1: General and guidance IEC Environmental testing Part 2-1: Tests Test A: Cold IEC Environmental testing Part 2-2: Tests Test B: Dry heat IEC Environmental testing Part 2-6: Tests Test Fc: Vibration (sinusoidal) IEC Environmental testing Part 2-27: Tests Test Ea and guidance: Shock IEC Environmental testing Part 2-30: Tests Test Db: Damp heat, cyclic (12 h + 12 h cycle) IEC Environmental testing Part 2-42: Tests Test Kc: Sulphur dioxide test for contacts and connections IEC Environmental testing Part 2-78: Tests Test cab: Damp heat, steady state Corresponding Indian Standard IS/ISO : 2012 Fire detection and alarm systems : Part 5 Point-type heat detector (first revision) IS/ISO : 2003 Fire detection and alarm systems : Part 7 Point-type smoke detectors using scattered light, transmitted light or ionization IS 9000(Part 1):1998 Basic for electronic and electrical Items : Part 1 General IS 9000 (Part II/Sec 1to 4):1977 Basic environmental testing procedures for electronic and electrical items: Part II Cold test IS 9000 (Part III/Sec 1 to 5):1977 Basic environmental testing procedures for electronic and electrical items: Part III Dry heat test IS 9000(Part VIII):1981 Basic for electronic and electrical items: Part VIII Vibration (sinusoidal) test IS 9000 (Part 7/Sec 1) : 2006 Basic for electronic and electrical items : Part 7 Impact test, Section 1 Shock (Test Ea) (second revision) IS 9000 (Part V/Sec 1 and 2) : 1981 Basic environmental testing procedures for electronic and electrical items : Part V Damp heat (cyclic ) test IS 9000 (Part XXVI) : 1980 Basic for electronic and electrical items : Part XXVI Sulphur dioxide test for contacts and connections IS 9000 (Part 4) : 2008 Basic for electronic and electrical items : Part 4 Damp heat (steady state) (first revision) Degree of Equivalence Identical Identical with IEC : 1987 Identical with IEC :2001 The technical committee has reviewed the provisions of the following International Standards/other publications referred in this standard being adopted and has decided that they are acceptable for use in conjunction with this standard: 3

7 International standard/other Publication ISO 209 ISO IEC Title Aluminium and aluminium alloys Chemical composition Fire detection and alarm systems Part 1:General and Definition Alarm Systems Part 2: Electromagnetic compatibility Immunity requirements for components of fire and security alarm systems For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1960 `Rules for rounding off numerical values (revised). The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. FOR COMPLETE TEXT OF THE DOCUMENT, KINDLY REFER ISO :2018 Note: For obtaining the hard copy of the complete document, please contact: Head (Civil Engineering Department) Bureau of Indian Standards Manak Bhavan, 9, Bahadur Shah Zafar Marg New Delhi Tele: ced@bis.gov.in 4