BS 6266-2011 Fire protection for electronic equipment installations Code of practice《电子设备装置的防火 实施规范》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS 6266:2011Fire protection for electronicequipment installations Code of practicePublishing and copyright informationThe BSI copyright notice displayed in this document indicate

2、s when the documentwas last issued. BSI 2011ISBN 978 0 580 64468 9ICS 13.220.20; 35.020The following BSI references relate to the work on this standard:Committee reference FSH/14Draft for comment 11/30189447 DCPublication historyFirst published August 1982Second edition, April 1992Third edition, Dec

3、ember 2002Fourth (present) edition, August 2011Amendments issued since publicationDate Text affectedBS 6266:2011 BRITISH STANDARDContentsForeword iiiIntroduction 11 Scope 22 Normative references 23 Terms and definitions 44 Risk assessment 64.1 General 64.2 Risk assessment categories 65 Fire detectio

4、n and fire protection strategy 76 Separation and construction of electronic equipment areas 86.1 Separation and location of electronic equipment areas 86.2 Construction of the electronic equipment area 96.3 Raised floors within an electronic equipment area 96.4 Suspended ceilings within an electroni

5、c equipment area 96.5 Walls and partitions within an electronic equipment area 106.6 Cable and service penetrations 106.7 Storage 106.8 Furniture and furnishings 117 Building engineering services for electronic equipment areas 117.1 Air-conditioning 117.2 Electrical installation 137.3 Lightning prot

6、ection 138 Fire detection and alarm systems 138.1 General 138.2 Design of fire detection and alarm systems 148.3 Type and selection of detectors 168.4 Sensitivity of detectors 198.5 Detector spacing and location 208.6 Detector zoning 219 Fixed systems and other fire-fighting equipment 219.1 Fixed fi

7、re-fighting equipment 219.2 Portable fire-fighting equipment 2410 Smoke control 2511 Fire safety management for electronic equipment areas 2511.1 Responsibility 2511.2 Prevention of fire 2511.3 Training 2711.4 Building works and alterations 2811.5 Action in the event of fire within electronic equipm

8、ent areas 2812 Protection of information: contingency and recovery measures 2912.1 General 2912.2 Protection of data 2912.3 Contingency and recovery planning 2913 Business-critical ancillary facilities 3114 Inspection, testing and commissioning 3114.1 General 3114.2 Electrical installation 3114.3 Fi

9、re detection and alarm 3114.4 Active fire protection measures 3314.5 Fire suppression systems 3314.6 Portable fire-fighting equipment 3414.7 Passive fire protection 34BRITISH STANDARD BS 6266:2011 BSI 2011 iAnnexesAnnex A (normative) Spacing and location of aspirating sampling holes, pointsmoke dete

10、ctors and optical beam smoke detectors 35Annex B (normative) Smoke pellet performance test 40Annex C (normative) Paper burn performance test 41Annex D (normative) Overheated enamel wire performance test 42Annex E (normative) Overheated PVC/LSF wire performance tests 43Annex F (normative) Overheated

11、resistor performance tests 46Annex G (normative) Polyurethane mat performance test 47Annex H (normative) Potassium chlorate/lactose performance test 48Annex I (informative) Description of the approach for determining themaximum detection coverage recommended in Annex A 49Bibliography 52List of figur

12、esFigure A.1 Location of detectors in electronic equipment rooms 39Figure G.1 Test mat on its support 47List of tablesTable1Typical features of fire detection and suppression systems for each riskcategory 8Table 2 Recommended numbers of portable CO2extinguishers per floor areafor electronic equipmen

13、t areas 24Table 3 Performance tests for detection systems 33Table B.1 Burner operation times 41Table H.1 Lactose and potassium chlorate quantities 48Table I.1 Summary of adjustments in A.2.1 and calculation of maximumcoverage 50Summary of pagesThis document comprises a front cover, an inside front c

14、over, pages i to iv,pages 1 to 52, an inside back cover and a back cover.BRITISH STANDARDBS 6266:2011ii BSI 2011ForewordPublishing informationThis British Standard is published by BSI and came into effecton 31 August 2011. It was prepared by Technical Committee FSH/14, Fireprecautions in buildings.

15、A list of organizations represented on this committeecan be obtained on request to its secretary.SupersessionThis British Standard supersedes BS 6266:2002, which is withdrawn.Relationship with other publicationsThis British Standard is complementary to BS 7974, which gives a structuredmethod for det

16、ermining the most appropriate fire protection strategy for abuilding as a whole.Information about this documentThis is a full revision of the standard, and introduces the following principalchanges: reduction from five risk categories to four, of which three are addressed inthis edition of the stand

17、ard; reinstatement of detection performance tests; update of detection technologies, including the classification of aspiratingsystems; update of structural fire protection provisions, taking account of thepublication of BS 9999:2008.Product certification/inspection/testing. Users of this British St

18、andard are advisedto consider the desirability of third-party certification/inspection/testing ofproducts and systems installed to achieve conformity with this British Standard.Appropriate conformity attestation arrangements are described in the relevantproduct standards. Users seeking assistance in

19、 identifying appropriate conformityassessment bodies or schemes may ask BSI to forward their enquiries to therelevant association.Hazard warningsWARNING. This British Standard calls for the use of substances and/orprocedures that can be injurious to health if adequate precautions are nottaken. It re

20、fers only to technical suitability and does not absolve the userfrom legal obligations relating to health and safety at any stage.WARNING. The tests described in this standard give off noxious fumes, andsuitable precautions should be taken to protect operators in accordance withappropriate risk asse

21、ssments.WARNING. There is a fire hazard associated with these tests and anappropriate type of fire extinguisher should always be to hand whenpreparing for and undertaking the tests.WARNING. It is the responsibility of the person carrying out the tests thatelectrical safety is maintained at all times

22、. The electrical tests described withinthis standard are functional methods and do not attempt to cover therequirements for electrical safety.BRITISH STANDARD BS 6266:2011 BSI 2011 iiiUse of this documentThis British Standard is intended for use by persons involved in the specification,design, insta

23、llation, commissioning and operation of fire protection systems forareas containing electronic equipment.As a code of practice, this British Standard takes the form of guidance andrecommendations. It should not be quoted as if it were a specification andparticular care should be taken to ensure that

24、 claims of compliance are notmisleading.Any user claiming compliance with this British Standard is expected to be able tojustify any course of action that deviates from its recommendations.BSI permits the reproduction of BS 6266:2011, Table I.1. This reproduction is onlypermitted where it is necessa

25、ry for the user to record calculations on the tableduring each application of the standard.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Itsrecommendations are expressed in sentences in which the principal auxiliaryverb is “should”.Commentary,

26、explanation and general informative material is presented insmaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.C

27、ompliance with a British Standard cannot confer immunity from legalobligations.BRITISH STANDARDBS 6266:2011iv BSI 2011IntroductionA fire in an electronic equipment installation can lead to extensive physicaldamage to the electronic equipment and serious interruption of operations andservices. The oc

28、currence of a fire in an electronic installation, however, is a rareevent, and is more often determined by the presence of sources of ignition orfire hazards other than the electronic equipment itself, such as:a) supporting electrical equipment and installations, e.g. power supplies;b) control equip

29、ment and switchgear;c) air-handling equipment;d) hot works/maintenance;e) deliberate ignition;f) poor housekeeping;g) fire from adjacent areas or premises;h) availability of combustible materials.If a fire does occur, its effects can be minimized by appropriate structural fireprotection measures, ea

30、rly detection and extinguishing of the fire, either ofwhich might occur automatically (by fixed systems) or manually (by persons onthe premises). This British Standard gives guidance on these measures, takinginto consideration the characteristics of those environments in which electronicequipment in

31、stallations are located. The extensive use of fire protection systemsin electronic installations arises not from a high probability of fire, nor from asignificant hazard to life, but from the consequences of fire loss.In practice, a wide variation of dependence on electronic equipment is found. Aton

32、e extreme, a processing operation might be duplicated at a second location,so that there is redundancy. In this case, a fire at either location would not beexpected to cause significant interruption to the operation. The fire protectionstrategy for electronic equipment fires could then be related en

33、tirely to thephysical damage to the equipment and its surroundings and the associatedfinancial cost.At the other extreme, a “real-time” facility might be critical to therevenue-earning capacity of an organization, e.g. it might control a majormanufacturing process or provide financial dealing inform

34、ation. In suchcircumstances, even a few minutes downtime can result in significantinterruption to users. It might be impractical to provide facilities for therestoration of the service at another location in a short time, in which case asophisticated fire protection system will be necessary.It is of

35、ten necessary to consider the potential for business interruptionseparately from the potential for material damage. It is essential that the levelof protection is reviewed periodically to ensure that it remains appropriate tothe exposure to loss.BRITISH STANDARD BS 6266:2011 BSI 2011 11 ScopeThis Br

36、itish Standard gives recommendations for the protection against fire ofelectronic equipment installations, including the equipment (e.g. computers,servers and systems for communications, design, manufacturing anddistribution), and the areas containing such equipment (e.g. computer rooms,internet hos

37、ting centres, switching centres and data centres).It also gives recommendations for the protection against fire in adjacent areas.This British Standard covers electronic equipment installations categorized asmedium, high and critical risk.Low risk environments are not addressed in this standard. The

38、 standard mayhowever be used as guidance for the protection of such environments.The standard is applicable to new installations; the recommendations mayhowever be used with an existing installation, and when alterations are made toexisting areas containing electronic equipment.2 Normative reference

39、sThe following referenced documents are indispensable for the application ofthis document. For dated references, only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including anyamendments) applies.Standards publicationsBS 476-11, Fire tests on build

40、ing materials and structures Part 11: Method forassessing the heat emission from building materialsBS 476-20, Fire tests on building materials and structures Part 20: Method fordetermination of the fire resistance of elements of construction (generalprinciples)BS 476-21, Fire tests on building mater

41、ials and structures Part 21: Method fordetermination of the fire resistance of loadbearing elements of constructionBS 476-22, Fire tests on building materials and structures Part 22: Method fordetermination of the fire resistance of non-loadbearing elements of constructionBS 5287, Specification for

42、assessment and labelling of textile floor coveringstested to BS 4790BS 5306-2, Fire extinguishing installations and equipment on premises Part 2:Specification for sprinkler systemsBS 5306-4, Fire extinguishing installations and equipment on premises Part 4:Specification for carbon dioxide systemsBS

43、5306-8, Fire extinguishing installations and equipment on premises Part 8:Selection and installation of portable fire extinguishers Code of practiceBS 5839 (all parts), Fire detection and alarm systems for buildingsBS 5867-2:1980, Fabrics for curtains, drapes and window blinds Part 2:Flammabililty r

44、equirements SpecificationBS 5979, Remote centres receiving signals from fire and security systems Codeof practiceBS 7176:2007, Specification for resistance to ignition of upholstered furniture fornon-domestic seating by testing compositesBS 7273-1, Code of practice for the operation of fire protecti

45、on measures Part 1: Electrical actuation of gaseous total flooding extinguishing systemsBRITISH STANDARDBS 6266:20112 BSI 2011BS 7273-2, Code of practice for the operation of fire protection measures Part 2: Mechanical actuation of gaseous total flooding and local applicationextinguishing systemsBS

46、7273-3, Code of practice for the operation of fire protection measures Part 3: Electrical actuation of pre-action watermist and sprinkler systemsBS 7273-5, Code of practice for the operation of fire protection measures Part 5: Electrical actuation of watermist systems (except pre-action systems)BS 7

47、671, Requirements for electrical installations IEE Wiring Regulations Seventeenth editionBS 8519, Selection and installation of fire-resistant power and control cablesystems for life safety and fire-fighting applications Code of practiceBS 9999:2008, Code of practice for fire safety in the design, m

48、anagement anduse of buildingsBS EN 3 (all parts), Portable fire extinguishers1)BS EN 54 (all parts), Fire detection and fire alarm systemsBS EN 140, Respiratory protective devices Half masks and quarter masks Requirements, testing, markingBS EN 166, Personal eye protection SpecificationsBS EN 1047 (

49、all parts), Secure storage units Classification and methods of testfor resistance to fireBS EN 1363 (both parts), Fire resistance testsBS EN 1364 (all parts), Fire resistance tests for non-loadbearing elementsBS EN 1365 (all parts), Fire resistance tests for loadbearing elementsBS EN 1634 (all parts), Fire resistance and smoke control tests for door, shutterand, openable window assemblies and elements of building hardwareBS EN 12845, Fixed firefighting systems Automatic sprinkler systems Design,installation a