1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS 9252:2011Components for residentialsprinkler systems Specification and testmethods for residentialsprinklersPublishing and copyright informationThe BSI copyright notice displa
2、yed in this document indicates when the documentwas last issued. BSI 2011ISBN 978 0 580 56124 5ICS 13.220.20The following BSI references relate to the work on this standard:Committee reference FSH/18/2Draft for comment DD 252Publication historyFirst published May 2011Amendments issued since publicat
3、ionDate Text affectedBS 9252:2011 BRITISH STANDARDContentsForeword iii1 Scope 12 Normative references 13 Terms, definitions and abbreviations 14 Construction and performance 35 Marking 116 Instruction charts 127 Conditions for testing and type approval testing 128 Evaluation of conformity 12AnnexesA
4、nnex A (normative) Test to determine operating temperatures of fusible linksprinklers and glass bulb sprinklers 14Annex B (normative) Water flow test 15Annex C (normative) Water distribution tests 16Annex D (normative) Functional test 21Annex E (normative) Strength of sprinkler body and deflector te
5、sts 22Annex F (normative) Strength of release elements test 24Annex G (informative) Notes on strength test for fusible link releaseelements 26Annex H (normative) Leak resistance test 27Annex I (normative) Heat exposure 27Annex J (normative) Glass bulb sprinkler thermal shock test 28Annex K (normativ
6、e) Corrosion tests 28Annex L (normative) Sprinkler coatings low temperature test 31Annex M (normative) Water hammer test 32Annex N (normative) Thermal response tests 32Annex O (normative) Heat-resistance test 37Annex P (normative) Vibration test 37Annex Q (normative) Impact test 38Annex R (normative
7、) Resistance to low temperature test 40Annex S (normative) Fire tests 40Bibliography 50List of figuresFigure 1 Graph of service load and bulb strength distribution curves 7Figure 2 Standard orientation RTI and C factor limits 10Figure A.1 A typical liquid bath 14Figure B.1 Water flow test apparatus
8、16Figure C.1 Layout of water distribution test chamber 17Figure C.2 Vertical water collection and wall wetting (sidewall sprinklers) 18Figure C.3 Vertical water collection and wall wetting (upright and pendentsprinklers) 19Figure C.4 Water collection for sidewall sprinklers (plan view) 20Figure D.1
9、Example of functional test oven 22Figure E.1 Example of a tensile/compression test machine 23Figure K.1 Typical vessel for sulphur dioxide corrosion test 30Figure N.1 Standard orientation and unfavourable orientation 33Figure N.2 Room response test room layout 35Figure N.3 Sand burner apparatus 36Fi
10、gure P.1 Vibration test curve 37Figure Q.1 Impact test apparatus 39Figure S.1 Fire test 1: room corner layout 42Figure S.2 Fire test 2: wall layout 43Figure S.3 Typical sprinkler test arrangement 44Figure S.4 Drain test valves and orifices 44Figure S.5 Corner fire test ignition and fuel package 45BR
11、ITISH STANDARD BS 9252:2011 BSI 2011 iFigure S.6 Foam adhesive pattern 45Figure S.7 Wall fire test ignition and fuel package 46Figure S.8 Sidewall sprinkler fire test arrangement, sprinklers on opposite wallto fire load 48Figure S.9 Sidewall sprinkler fire test arrangement, sprinklers on same wall t
12、ofire load 49List of tablesTable 1 Nominal operating temperatures and colour codes 3Table 2 K-factor tolerance 4Table 3 Allowable spacings (S, Lc, Wc) 5Table4Water distribution parameters 6Table 5 Fire test maximum temperatures 11Table D.1 Functional test parameters 21Table F.1 Y factors for normal
13、distributions to determine one sided tolerancelimits 25Table I.1 Heat exposure test 27Table N.1 Wind tunnel conditions for plunge test 34Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv,pages 1 to 50, an inside back cover and a back cover.BRITISH STANDARDBS
14、 9252:2011ii BSI 2011ForewordPublishing informationThis British Standard is published by BSI and came into effect on 25 May 2011.This British Standard was prepared by Subcommittee FSH/18/2, Sprinkler systems,under the authority of Technical Committee FSH/18, Fixed firefighting systems.A list of orga
15、nizations represented on this committee can be obtained onrequest to its secretary.SupersessionThis British Standard supersedes DD 252:2002, which is withdrawn.Relationship with other publicationsThis British Standard specifies requirements for the construction andperformance, and testing of fire sp
16、rinklers for use specifically in residential anddomestic occupancies. Requirements for the construction, performance andtesting or fire sprinklers for other buildings and industrial plant are specified inBS EN 12259-1.Information about this documentThis document converts DD 252 into a full British S
17、tandard. The principalchanges are further development of the test methods.Domestic and residential sprinklers are for use in fire sprinkler systems and aredesigned to provide an additional degree of protection of life and property,above that already achieved by the building design and the installati
18、on ofsmoke and/or fire detectors and systems. This British Standard presumes that thesprinkler protection will form part of an integrated fire safety system.Product certification/inspection/testing. Users of this British Standard are advisedto consider the desirability of third-party certification/i
19、nspection/testing ofproduct conformity with this British Standard. Appropriate conformityattestation arrangements are described in BS EN ISO 9001. Users seekingassistance in identifying appropriate conformity assessment bodies or schemesmay ask BSI to forward their enquiries to the relevant associat
20、ion.This British Standard is intended for the use of designers, engineers, architects,surveyors, contractors, installers and authorities having jurisdiction.It has been assumed in the preparation of this British Standard that theexecution of its provisions will be entrusted to appropriately qualifie
21、d andexperienced people, for whose use it has been produced.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Itsrequirements are expressed in sentences in which the principal auxiliary verb is“shall”. Its methods are expressed as a set of instruct
22、ions, a description, or insentences in which the principal auxiliary verb is “shall”.Commentary, 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 inclu
23、de all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legalobligations.BRITISH STANDARD BS 9252:2011 BSI 2011 iiiBRITISH STANDARDBS 9252:2011This page deliberately left blankiv BSI 20111 ScopeThi
24、s British Standard specifies requirements for the construction andperformance of sprinklers which are operated by a change of state of anelement or bursting of a glass bulb under the influence of heat, for use inresidential and domestic automatic sprinkler systems conforming to BS 9251. Testmethods
25、and a recommended test schedule for type approval testing are alsogiven.NOTE All pressure data in this standard are given as gauge pressures in bar1).2 Normative referencesThe following referenced documents are indispensable for the application ofthis document. For dated references, only the edition
26、 cited applies. For undatedreferences, the latest edition of the referenced document (including anyamendments) applies.BS 9251, Sprinkler systems for residential and domestic occupancies Code ofpracticeBS EN 12259-1, Fixed firefighting systems Components for sprinkler and waterspray systems Part 1:
27、SprinklersBS EN 13238, Reaction to fire tests for building products Conditioningprocedures and general rules for selection of substratesBS EN 60751, Industrial platinum resistance thermometers and platinumtemperature sensorsISO 7-1, Pipe threads where pressure-tight joints are made on the threads Pa
28、rt 1: Dimensions, tolerances and designationISO 49, Malleable cast iron fittings threaded to ISO 7-1ISO 65, Carbon steel tube suitable for screwing in accordance with ISO 7-13 Terms, definitions and abbreviationsFor the purposes of this British Standard, the terms, definitions andabbreviations in BS
29、 EN 12259-1 and the following apply.3.1 automatic sprinklernozzle with a thermally sensitive sealing device which opens to discharge waterfor firefighting3.2 coated sprinklersprinkler with a coating, applied for the purpose of reducing the effects ofcorrosive environments, excluding decorative paint
30、 or painted finishes3.3 concealed sprinklerrecessed sprinkler with a cover plate that disengages when heat is applied3.4 conductivity factor (C)measure of the conductance between the sprinklers heat responsive elementand the water-filled fitting, expressed in m/s1/2.3.5 design lower tolerance limit
31、(DLTL)lowest lower tolerance limit (LTL) for glass bulbs specified and assured by theglass bulb supplier1)1bar=105N/m2= 100 kPa.BRITISH STANDARD BS 9252:2011 BSI 2011 13.6 design upper tolerance limit (DUTL)highest upper tolerance limit (UTL) for sprinklers specified and assured by thesprinkler supp
32、lier3.7 dry sprinklersprinkler and dry drop pipe with a valve, at the head of the pipe, held closed bya device maintained in position by the sprinkler head valve3.8 dry upright sprinklersprinkler and dry rise pipe with a valve, at the base of the pipe, held closed by adevice maintained in position b
33、y the sprinkler head valve3.9 flush pattern sprinklerpendent sprinkler for fitting partly above, but with the temperature sensitiveelement below, the lower plane of the ceiling3.10 fusible link sprinklersprinkler which opens when an element provided for that purpose melts3.11 glass bulb sprinklerspr
34、inkler which opens when a liquid-filled glass bulb bursts3.12 horizontal sprinklersprinkler in which the nozzle directs the water horizontally3.13 lower tolerance limit (LTL)lowest strength of a glass bulb determined by testing and statistical analysis of abatch of 55 or more bulbs3.14 mean design b
35、ulb strengthlowest mean bulb strength, specified and assured by the glass bulb supplier, forany batch of 55 or more bulbs3.15 mean design service loadhighest mean service load, specified and assured by the sprinkler supplier, forany batch of 10 or more sprinklers3.16 pendent sprinklersprinkler in wh
36、ich the nozzle directs the water downwards3.17 recessed sprinklersprinkler in which all or part of the thermally sensitive element is above theplane of the ceiling3.18 residential sprinklersprinkler for use in domestic and residential occupancies3.19 response time index (RTI)measure of the thermal s
37、ensitivity of the fusible or frangible element in thesprinklerNOTE The response time index is expressed in ms1/2.3.20 sidewall pattern sprinklersprinkler that gives an outward half paraboloid pattern of water discharge3.21 spray pattern sprinklersprinkler which gives a downward paraboloid pattern of
38、 water dischargeBRITISH STANDARDBS 9252:20112 BSI 20113.22 upper tolerance limit (UTL)highest service load of a sprinkler determined by testing and statistical analysisof a batch of 20 or more sprinklers3.23 upright sprinklersprinkler in which the nozzle directs the water upwards4 Construction and p
39、erformance4.1 Product assemblySprinklers shall be assembled in the original equipment suppliers factory, in sucha way that any subsequent adjustment or dismantling will result in destructionof an element of construction.4.2 Dimensions4.2.1 Nominal thread sizes shall be34 in or12 in and suitable for
40、fittingsthreaded in accordance with ISO 7-1.NOTE Flush pattern sprinklers may have larger thread sizes.4.2.2 It shall be possible for:a) a sphere of s8010.01d mm diameter to pass through each water passage in thesprinkler; orb) a sphere of s6010.01d mm diameter to pass through each water passage in
41、thesprinkler, where the water supply gives a pressure of not less than 3 bar atthe sprinkler.4.3 Nominal operating temperature4.3.1 The nominal operating temperatures of glass bulb sprinklers shall be inaccordance with Table 1.4.3.2 The nominal operating temperature ranges of fusible link sprinklers
42、 shallbe in accordance with Table 1.4.3.3 Glass bulb sprinklers and non-plated and non-coated fusible link sprinklersshall be colour coded according to the nominal operating temperature as givenin Table 1.Table 1 Nominal operating temperatures and colour codesGlass bulb sprinklers Fusible link sprin
43、klersNominal operatingtemperatureLiquid colour code Nominal operatingtemperature within rangeYoke arms colour codeC C57 Orange 57 to 77 Uncoloured68 Red 80 to 107 White79 Yellow 93 Green 100 Green BRITISH STANDARD BS 9252:2011 BSI 2011 34.4 Operating temperaturesWhen tested in accordance with Annex
44、A, sprinklers shall operate at atemperature within the range:t (0.035 t +0.62) Cwhere t is the nominal operating temperature.4.5 Water flow and distribution4.5.1 K-factorWhen determined in accordance with Annex B, the K-factor, the orificecoefficient of the sprinkler, shall be within the range given
45、 in Table 2.4.5.2 Water distribution4.5.2.1 Sprinklers other than sidewall sprinklersWhen sprinklers are tested in accordance with Annex C (C.1 and C.2), using theparameters given in Table 3 and Table 4, the minimum conditions specified inTable 4 shall be achieved and the minimum operating pressure
46、at any sprinklershall not be less than 0.5 bar.Sprinklers shall distribute water over a horizontal surface such that the dischargedensity collected in not more than four collection pans shall be at least0.6 mm/min. All other collection pans within the measurement area shall be atleast 0.8 mm/min.Eac
47、h wall defining the collection area shall be wetted with water to within0.7 m of the ceiling and when collected in the containers at the base of the wallshall not be less than the volume defined in the equation for each wall:V50.2 Q LZwhere:V is the volume of water collected at the base of the wall
48、(dm3);Q is the total flow from the sprinkler (dm3);L is the wall length (m);Z is the perimeter of sprinkler coverage area (m).4.5.2.2 Sidewall sprinklerWhen sprinklers are tested in accordance with Annex C (C.2 and C.3), using theparameters given in Table 3 and Table 4, the minimum conditions specif
49、ied inTable 4 shall be achieved and the minimum operating pressure at any sprinklershall not be less than 0.5 bar.Sprinklers shall distribute water over a horizontal surface such that the dischargedensity collected in any eight collection pans shall be not less than 0.6 mm/min.All other collection pans within the design area shall be at least 0.8 mm/min.Table 2 K-factor toleranceNominal K-factor K-factor tolerancelmin1bar1/280 4 6BRITISH STANDARDBS 9252:20114
