1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STAN DARD I ZAT I O N SECTOR OF ITU L.23 (1 0/96) SERIES L: CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT Fire extinction - Classification and location of fire extinguishing installations and equi
2、pment on premises ITU-T Recommendation L.23 (Previously CCITT Recommendation) STD-ITU-T RECMN L.23-ENGL 199b H 48b2591 Ob32997 b2D ITU-T L-SERIES RECOMMENDATIONS CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT For further details, please refer to ITU-T List of
3、 Recommendations. STD-ITU-T RECMN L.23-ENGL L99b II Lib259L Ub32998 5b7 m FOREWORD The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (IT). The IT-T is responsible for studying technical, operating and tariff questions and issuing R
4、ecommen- dations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on thes
5、e topics. The approval of Recommendations by the Members of the ITLJ-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, March 1-12,1993). IT-T Recommendation L.23 was prepared by ITU-T Study Group 6 (1993-1996) and was approved by the WTSC (Geneva, 9-18 October 1996). NOTES
6、1. telecommunication administration and a recognized operating agency. In this Recommendation, the expression “Administration” is used for conciseness to indicate both a 2. follows: The status of annexes and appendices attached to the Series L Recommendations should be interpreted as - - an annex to
7、 a Recommendation forms an integral part of the Recommendation; an appendix to a Recommendation does not form part of the Recommendation and only provides some complementav explanation or information specific to that Recommendation. O ITU 1997 All rights reserved. No part of this publication may be
8、reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. Recommendation L.23 (10196) 1 STD-ITU-T RECMN L.23-ENGL L79b 48b2.593 Ob32774 4T3 = CONTENTS 1 Introduction 1.1 Portable equipment . 1.2 Fix
9、ed installations . It is recommended that . 2.1 Portable equipment . 2.2 Fixed installations . Appendix I - United Kingdom experience Appendix II - Japanese experience . Appendix III - Argentinian experience . Appendix IV - United States experience IV.l Building construction Fire system installation
10、 and related codes Telecommunications Equipment Fire Resistance Standards 2 IV.2 Fire prevention IV.3 IV.4 Page 1 1 1 2 2 3 11 Recommendation L.23 (10196) STDmITU-T RECMN L.23-ENGL 197b E 48b2591 Ob33000 813 M Recommendation L.23 FIRE EXTINCTION - CLASSIFICATION AND LOCATION OF FIRE EXTINGUISHING IN
11、STALLATIONS AND EQUIPMENT ON PREMISES (Geneva, 1996) 1 Introduction The different functions taking place in a telecommunication building generates possibilities and provides strong causes for fires on the premises. Fire extinction action involves concentrating the fire fighting at the origin of the
12、fire inside the building itself using a choice of extinguishing systems. The fire-fighting means to be adopted in a telecommunication building, may vary according to the usage and location of the premises and whether it is occupied. These are factors which determine the amount of fire service assist
13、ance initially allocated in case there should be a fire. 1.1 Portable equipment This includes transportable or movable fire-fighting devices, such as portable extinguishers, fire blankets, etc. and other equipment assisting personnel in fire fighting such as masks, insulated garments, etc. Portable
14、fire extinguishers use water, gas, foam or powder as an extinguishing medium. The type of extinguishing media selected will depend on: - - - - whether electrical equipment is being protected; whether the area is confined or open; whether the fire will involve solid materials of an organic nature; wh
15、ether the fire will involve liquids or liquefiable solids. 1.2 Fixed installations These are non-transportable fire-fighting fixtures that are fixed extinguishing installations incorporated into the building and other accessory installations, such as hydrants, water supply networks, water spraying i
16、nstallations, sprinklers, automatic powder or gaseous extinguishers, water hoses, etc. Hydrant systems, hose reels and foam inlets These are non-transportable fire-fighting fixtures which while not responding automatically to a fire should be available at strategic points for use by the fire service
17、. Hydrant systems (wet and dry rising and falling mains) are intended for use by the fire service or other trained personnel and provide a readily available means to deliver considerable quantities of water to extinguish or prevent the spread of fire. Hose reels while delivering smaller quantities o
18、f water are capable of operation by the administrations personnel who are in the vicinity when a fire starts and can be used to tackle a fire in its early stage of development. They provide a continuous and easily controlled water jet and are generally more effective than portable fire extinguishers
19、 and less damaging than larger jets. Foam inlets have a more specialized role for use where quantities of oil are involved. Water sprinkler systems A sprinkler system consists of a water supply and an array of closed outlets or sprinklers mounted on pipework beneath the ceiling of a protected enclos
20、ure. The sprinklers operate at predetermined temperatures with the flow of water through an alarm valve initiating a fire alarm. Only sprinklers in the vicinity of the fire operate. Recommendation L.23 (10/96) 1 STD-ITU-T RECHN L-23-ENGL 299b 4b257L Ob33001 75T m Carbon dioxide systems There is a ce
21、ntral source where the gas is stored under pressure and pipework is provided to carry it to the points of discharge. Systems provide either total flooding or local application. Total flooding systems are used to protect against either surface fires involving flammable liquids, gases and solids or de
22、ep-seated fires involving solids subject to smouldering. Local application systems are used where the hazard does not meet the total flooding enclosure requirements or as an addition to buildings in which sprinkler systems are installed. Carbon dioxide systems can be used for fires on low voltage li
23、ve electrical equipment. Halon gas systems (subject to national legislation) As this gas is electrically non-conductive, it is used on fires involving live electrical apparatus and to protect electronic data processing installations. Powder systems Powders are finely divided chemicals with a control
24、led range of particle size which are used mainly to extinguish fires involving flammable liquids, gases and solids. Powder systems can be used for fires on high voltage live electrical equipment. 2 It is recommended that Fire extinction can involve a number of systems which are mutually supportive a
25、lthough each may be independent of the others. The success of one or more systems may make unnecessary or reduce the need for the others. The systems are: - First-uidjrejghting This involves the use of portable extinguishers, hose reels and fire blankets. - Fixedjre extinguishing systems These invol
26、ve water sprinkler, gaseous or powder systems. - Action by thefire service This involves using their own equipment and/or using non-transportable fire-fighting fixtures, such as hydrants, hose reels and foam inlets. Fire sectors should be established in telecommunication buildings. The buildings sho
27、uld be classified for the fire service according to their complexity. Portable fire extinguishers should be placed in all telecommunication buildings. The type should be appropriate for the fire risk. Fire sectors should be established that can be equipped with fixed extinguishing installations. 2.1
28、 Portable equipment Portable fire extinguishers should be placed in positions that are easily seen and with easy access. They should be protected against solar heat and be kept away from internal sources of heat such as radiators and heating pipes. Portable fire extinguishers, appropriate for the fi
29、re risk, should be evenly distributed on each floor of the building with a maximum travel distance which should be specified. They should be hung on walls or placed on dedicated stands so that their locations are fixed and can be memorized. Each extinguisher should be marked with its capacity and th
30、e type of fire suitable for its extinguisher medium. When a fire sector is equipped with more than one type of extinguisher, these should be distributed evenly and alternatively through the area. Subject to national legislation, the extinguishers should be periodically test-discharged which also pro
31、vides an opportunity for training personnel in their use. 2 Recommendation L.23 (10/96) STD.ITU-T RECMN L.23-ENGL 179b U 4862573 b33002 b9b 2.2 Fixed installations Fixed automatic extinguishing systems should be installed - in unmanned buildings or those where the arrival of the fire service is cons
32、idered too delayed; - on sites of high strategic value to the Administration because of personnel, equipment or documentation content. With the exception of water sprinkler systems, fixed extinguishing systems should be triggered by automatic fire-detection systems. Preferably, the extinguishing age
33、nt is only released when at least two detectors are activated. Access should be prohibited to a compartment if the extinguishing agent is hazardous to personnel and the system is in automatic operation mode. It should be possible to operate the system from outside the compartment (fire sector). Wate
34、r sprinkler systems are operated by the triggering of individual heads detecting a predetermined local rise in temperature. Water hydrants should be placed in areas easily accessible to the fire service and should be clearly marked. Dry rising mains should be installed in buildings up to a specified
35、 height (for example, 60 rn above ground level). Above this height, wet rising mains should be used owing to the pressure necessary to provide adequate water supplies. Water inlets should be placed on the facade of buildings and should be well marked. Outlets for the dry and wet rising mains should
36、be installed in stair wells or in access halls close by (for example, on even-numbered floors). Dry dropping mains are installed in buildings for floors more than a specified depth (for example, 10 m below ground level). Water hose reels should be located in prominent and accessible positions at eac
37、h floor level adjacent to exits in corridors on exit routes. Sufficient hose reels should be provided so that the nozzle of a hose can be taken into every room and with the whole area of each room being covered by the water jet. Appendix I United Kingdom experience United Kingdom Standards British S
38、tandard (BS) 5306: Part 1 Fire extinguishing installations and equipment on premises Part 1 - Hydrant systems, hose reels and foam inlets British Standard (BS) 5306: Part 2 Fire extinguishing installations and equipment on premises Part 2 - Specification for sprinkler systems British Standard (BS) 5
39、306: Part 3 Fire extinguishing installations and equipment on premises Part 3 - Code of practice for selection, installation and maintenance of portable fire extinguishers British Standard (BS) 5306: Part 4 Fire extinguishing installations and equipment on premises Part 4 - Specification for carbon
40、dioxide systems British Standard (BS) 5306: Section 5.1 Fire extinguishing installations and equipment on premises Part 5 - Halon systems, Section 5.1 Specification for Halon 1301 total flooding systems British Standard (BS) 5306: Section 5.2 Fire extinguishing installations and equipment on premise
41、s Part 5 - Halon systems, Section 5.2 Halon 1211 total flooding systems Recommendation L.23 (10196) 3 STD-ITU-T RECMN L-23-ENGL L97b H 48b259L Ob33003 522 British Standard (BS) 5306: Part 6 Fire extinguishing installations and equipment on premises Park 6 - Specification for foam systems British Sta
42、ndard (BS) 5306: Part 7 Fire extinguishing installations and equipment on premises Part 7 - Specification for extinguishing powder systems Appendix II Japanese experience Japanese Standards relating to Fire Extinguishing Equipment Fire extinguishers and basic extinguishing equipment Fire Law Enforce
43、ment Ordinances: Fire Law Enforcement Regulation: indoor fire hydrant installations Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Sprinkler installations Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Water sprayer extinguishing installations Fire Law Enforceme
44、nt Ordinances: Fire Law Enforcement Regulation: Foam extinguishing installations Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Carbon dioxide fire-extinguishing installations Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Halogenatedjre-extinguishing installati
45、ons Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Powderedjre-extinguishing installations Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Outdoor fire hydrant installations Fire Law Enforcement Ordinances: Fire Law Enforcement Regulation: Power-driven fire-fight
46、ing pump installations Fire Law Enforcement Ordinances: Clause 10 Clauses 6-1 1 Clause 11 Clause 12 Clause 12 Clauses 13- 1 5 Clauses 13 and 14 Clauses 16 and 17 Clauses 13 and 15 Clause 18 Clauses 13 and 16 Clause 19 Clauses 13 and 17 Clause 20 Clauses 13 and 18 Clause 2 1 Clauses 13 and 19 Clause
47、22 Clause 20 4 Recommendation L.23 (10/96) STD.ITU-T RECMN L.23-ENGL Lb 4b25L Db33q qb Appendix III Argentinian experience IR4M are the initials of National Institute of Rationalization and Materials - Member of IS0 (International Organization for Standardization) - COPANT (Panamerican Commission of
48、 Technical Rules). NORMA IRAM 3509:1983 MATAFUEGOS DE DIXIDO DE CARBONO Manuales; (REV IR4M 3509:1967 (Prescrip. adicionales 84/12) (MOD. No 1:88/08) NORMA IRAM 3523:1983 MATAFUEGOS DE POLVO BAJO PRESIN Manuales; (REV IRAM 3523:1973) (Sancin iRAM 3523:1981 DE EMERG.), (Prescripciones adicionales: 84
49、/12). (MOD. No 1:86/07 y MOD. No 2:88/08). ERR de MOD. No 88/06). NORMA IRAM 3540: 1983 NORMA IRAM 3549: 1984 MATAFUEGOS DE BROMOCLORODIFLUOROMETANO (BCF) BAJO Manuales, (Prescripciones adicionales: 84/12). (MOD. No 1 :86/07 y MOD. No 2: 88/08) PRESIN MANGAS PARA EXTINCIN DE INCENDIOS Mtodos de ensayo (MOD. No 1:89/06) (ERR. No 1:89/06) NORMA IFUM 3555-2: 1990 INSTALACIONES FIJAS CONTRA INCENDIO. SISTEMAS DE ROCIADORES AUTOMTICOS DE AGUA Componentes NORMAJRAM 3556:1988 NORMA IRAM 3594:1989 NORMA IRAM 3596:1991 NORMA IRAM 3597:1989 NORMA IRAM 3632:1991 NORMA IRAM 3635:199
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