EN 14540:2004 (应}Foreword This document (在N14540:2004) has been prepared by Technical Committee CEN厅C192 \"Fire service equipment\", the secretariat 01 which is held by B81 This European 8tandard shall be given the status 01 a national standard, either by publication 01 an identical text or by endorsement, at the latest by November 2004, and conflicting national standards shall be withdrawn at the latest by November 2004, The standard is based on recommendations lrom CENfTC 191 \"Fixed lire lighting systems\" and should be read in conjunction with EN 671-2 prEN 1924 and prEN 14550 have the general title \"Fire-lighting hoses\", prEN 1♀24 gives requirements lor Non-percolating layflat delivery hoses and hose assemblies lor pumps and vehicles and this 8tandard gives requirements lor \"Non-percolating layflat hoses lor lixed systems\" Requirements lor semi-rigid hoses are given in EN 1947 (pumps and vehicles) and in EN 694 (Iixed systems) NOTE prEN 1924-2 was renumbered following enq山叩10EN 14540 and prEN 1924斗isnow prEN 1924 At present there is no existing 180 standard on the same su扫JectAnnexes A to E are normativeι Recommendations on the Irequency at which tests specilied in this standard should be carried out are given in annex F This document includes a Bibliography Users 01 this European 8tandard are advised to consider the desirability 01 independent certilication 01 product conlormity with this European 8tandard based on testing and continuing surveillance, which may be coupled with assessment 01 a supplier's quality systems against EN 180 9001 According to the CEN/CENELEC Internal Regulations, the national standards organizations 01 the lollowing countries are bound to implement this European 8tandard: Austria, Belgium萝Cyprus，Czech Republic, Denmark，在stonia，Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 810val咽，810venia, 8pain, 8weden, 8witzerland and United Kingdom 3 EN 14540:2004 (E) Introduction A lixed system is a manually operated unit installed in a building in order to make it possible lor the occupants to control and extinguish a small lire. The system consists 01 fixed units mounted on walls or in cabinets permanently connected 10 a water supply. The fixed units are composed 01 a coupling, a valve with a pressure indícator, a layflat waler filled hose with its suppo同anda nozzle 4 EN 1454白:2004(E) 1 Scope This European Standard specifies the requirements and test methods for non-percolating layflat hoses for fixed systems. The hoses are intended for use at a maximum working pressure 01 1,5 MPa over a range of inside diameters from 25 mm to 52 mm The standard applies exclusively to hoses for fire-fighting purposes intended lor use at a minimum ambient temperature 01 -20oC in normal conditions, and a minimum temperature of -30 oC in colder climatic conditions Hoses conforming to this slandard should be used with lire hose couplings conforming 10 the relevant national standards for couplings Hoses in marine applications and/or aggressive environments to be used with wall hyd旧ntsas specilied in EN 671-2 can conform to the requirements 01 this Standard or prEN 1924, but prEN 1924 is prelerred in these applications NOTE AII pressures are gauge pressures and are expressed in megapascals 1. 2 Normative references This European 8tandard incorporates by dated or undated reference, provisions Irom other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated relerences, subsequent amendments to or revisions 01 any 01 these publications apply to this European 8tandard only when incorporated in it by amendment or revision. For undated references the latest edition 01 the publication referred to applies (including amendments) EN 28033, Rubber and plastics hoses -Determination of adhesion between components (150 8033:1991) EN 180 1307, Rubber and plastics hoses for general purpose industrial applications-Bore diameters and tolerances, and folerances on length (150 130立199，EN 180 1402, Rubber and plastics hoses and hose assemblies…Hydrostatic test的gρ501402:1994) EN 180 4671, Rubber and plastics hoses and hose assemblies -Methods of measurement of dimensionsρ504671:199句，EN 1808330:2000, Rubber and plastics hoses and hose assemblies -Vocabulary (150 8330:1998) 180 188, Rubber, vulcanised or thermoplastic一-Accelerated ageing or heat rθ，sJstance tests. 3τ'erms and definitions For the purposes of this European 8tandard, the terms and definitions given in EN 180 8330:2000 and the following apply 1 1 MPa = 10 bar 5 EN 14540:2004 (巨}3.1 layflat hose hose with a soft wall which. when unpressurized internally, collapses to such an ex1ent that the inner laces 01 the inside diarneter make contact and the hose takes up a flat cross-sectional appearance 3.2 jacket circular woven seamless reinlorcement 4 Materials and construction 01 hose The hose shall be uncovered. It shall consist 01 the lollowing: an impermeable rubber or plastics lining; a synthetic libre jacket NOTE 1 The hose jacket can be dyed or pigmented NOTE 2 The hose manulactu阻rshould weave the jacket and assemble the jacket and lining. NOTE 3 The lining should be as smooth as possible so as to minimize Iricti。η5 Dimensions, tolerances and maximum mass 5.1 Inside diameter and maximum mass The inside diameter 01 the hose and tolerances when measured in accordance with EN 1804671 shall conlorm to the requirements given in Table 1. The mass per metre length lor a length 01 hose 01 at least 2 m, without couplings fitted, shall not exceed the value given in Table 1. Table 1 -Inside diameter, tolerances on inside diameter and maximum mass per uni! length Inside diamete矿Tolerances for inside Mass per uniï length diameter kg/m mm m盯1max 25 -0,5 to +1,0 。，1838 40/42/45 -0,5 to +1,0,24 5 。，2950/51/52 。，355.2 Length and tolerances on length The total length 01 hose supplied shall be in accordance with the purchaser's requirements and shall 如estated in metres. Tolerances on length shall be in accordance with EN 180 1307. NOTE The coil or !Iake sizeτand the tesl procedures 10 delermine these caη， if consìdered necessary, be agreed between the manufacturer and purchaser 6 筐剖14540:2004(E) 6 Performance requirements of finished hose 6.1 Hydrostatic requirements 6.1.1 Deformalion under normal working pressure The dimensional stability of the hose when tested in accordance with EN 130 1402, shall conform to the requirements of Tables 2 and 3 The initial test pressure shall be 0,07 MPa, and the final test pressure shall be 1,0 MPa The twisting line shall be clockwise τable 2 -Change in length and external d旧meterI Tolerances % Change in length 0,0 to +5,0 Change in external diameter 0,0 to +5，口Table 3 -Twisting line Inside diameter Maximum Iwisl mm 。1m25 120 38 to 52 inclusive 100 6.1.2 Deformation under proof pressure A proof pressure hold test shall be carried out on three hose lengths each 01 1 m in accordance w挂hEN 130 1402. The proof pressure shall be as given in Table 4 and on examination during the test, the test pieces shall not show any evidence 01 leakage, cracking, abrupt distortìon or other signs 01 lailure Table 4 -Working pressures, proof pressure and minimum bursl pressure Pressure MPa Normal workìng pressure 1,0 Maximum working pressurea 1,5 Prool pressure\" 2,25 Minimυm burst pressure 4,5 a To accommodate pump close down pressures, the maximυm working pressure may be exceeded by a maximum 01 0,2 MPa lor short perìods only町b A statistically based sampling plan may be used to provide evidence that hoses in a given batch conform to the prool pressure requirement 」一一…一7 EN 14540:2004 (E) 6.1.3 Mìnímum burst pressure Three test pieces 01 length 1 m shall be subjected to the burst pressure test as specilied in EN ISO 1402 No individual test piece shall burst at less than the burst pressure given inτable4 6.1.4 Kink pressure When tested in accordance with annex A, the test piece shall neither burst nor show any signs 01 defect when examined visually belore or after being subjected 10 the prool pressure given in Table 4. 6.2 Adhesion When tested in accordance with type 1 01 EN 28033 the adhesion between the lining and jacket shall be not less than 1,0 kN/m The test piece shall扫e01 length (25士0，5)m阳cutat right angles to the longitudinal邵阳01the hose The ring shall be cut transversely and opened out to lorm a slrip and the adhesìon determined wilh the rale 01 travel 01 Ihe power driven grips such that a rate 01 plγseparation 01 (50土5)mm/min is obtained. 1I an adhesion resυIt is not possible扫ecause01 tearing due to high adhesion, this shall be accepted as a pass. AII adhesions shall be attempled and the results recorded. 6.3 Accelerated ageing When tested in accordance wilh annex ß, the three Ilaked tesl pieces subjected to the bursl pressure test shall conlorm 10 the requirements 01 6.1.3. The mean 01 Ihe burst pressure lest resulls shall not decrease by more Ihan 25 % Irom Ihe inilial meaηburst pressure value determined Irom the resulls oblained in 6.1.3. τhe adhesion belween lining and jackel 01 Ihe coiled lesl piece shall be nolless Ihan 0,9 kN/m NOTE There is no limitation on the Încrease in value 01 these properties 6.4 low temperature flexibility When lesled in accordance wilh annex C, Ihe inner lining 01 Ihe hose shall nol crack or become loose lrom Ihe jackel after 15 cycles. The lest temperatures shall be as specilied below: Standard test temperature (-20 i: 2) oC Special test temperature (-30士2)oC NOTE The special test temperature requirement îs for hoses for use in the colder climatic conditions of Northern Europe 6.5 Hot surface resistance When tested in accordance with annex 0 at a lest temperature 01 (200士10)oC, in none 01 the lour tests shall the test piece show signs 01 leakage within 120 s from the application 01 the lilament rod or on removal 01 the Iilament rod afler this period. 8 EN 14540:2004 (应}6.6 Resistance to kinking When tested in accordance with annex E and using a bending radius 10 times its inside diameter, the hose shall not show any kinks when examined visually 7 Marking Each length 01 hose shall be legibly and permanently marked with the lollowing minimum information, at leasl twice per leng同h，at both ends a) the manufacturer's name or trade mark (see note 2 to clause 剑，b) the number and date 01 this European Standard; c) the inside diameter; d) the maximum working pressure in MPa(bar); 的thequa同erand year 01 manufacture; f) the test temperature if lower than -20 \"C (see 6.4); g) the approval number and the certilying body or its relerence, where applicable. EXAMPLE Man-主N14540: 2003 -45 -1，5(15)町2QJ20039 EN 14540:2004 (E) AnnexA (normative) Kink: pressure test A.1 Principle This method tests the hose lor leakage or damage in a kinked test piece held under pressure A.2τest piece The test piece shall be a 2,0 m length 01 hose A.3 Apparatus A.3.1 Source 01 hydrostatic pressure, with water as the test medium, capable 01 maintaining the prool pressure as specilied in Table 4 A.4 Procedur晤Connect the test piece to the pressure source and liII with water, expelling all air belore securely clamping shut the Iree end 01 the hose. Maintain a pressure 01 0,07 MPa in the test piece and then bend it through 180\" at a point approximately midway along its length. Tie the Iree end 01 the hose back on itsell, as close as possible to the secure end, so as to lorm a sharp kink, ensuring that the tie does not prevent subsequent expans旧n01 the diameter 01 the test piece Raise the pressure in the test piece to the prool pressure specilied in Table 4 over a period 01 60 s Maintain the pressure lor 1 min. Examine the test piece lor any sign 01 leakage or damage prior to releasing the pressure. A.5 Test report The test report shall include the lollowing inlormation: a) a lull description 01 the hose tested; b) a relerence to this European Standard; c) any evidence 01 leakage or damage observed; d) the date 01 the test 10 四14540:2∞4问Annex B (normatíve) Accelerated ageing test 8.1 Test piece Four test pieces, each 01 1 m length, shall be tested, NOTE It is recommended that the test pieces should be takeηlrom the hose adjacent to the original burst and adhesion test pieces 8.2 Procedure Bend three 01 the test pieces through 180 \" at a point approximately midway along their length and tie in this Ilaked position Loosely coil the remaining test piece Age all lour test pieces in air lor 14 days at a temperature 01 (70土1)\"C in a temperature controlled oven as specilied in 150 188 After agein♀， straighten out the three Ilaked test pieces and subject them to the burst pressure test as specilied in 6,1,3 5ubject the remaining test piece to the adhesion test as given in 6,2, 8.3 Test report The test rep。同shallcontain the lollowing inlor响ationa) a lull description 01 the hose tested 扫)a relerence to this European 8tandard c) the bu用tpressure alter aging d) adhesion test results after ageing e) date 01 test 11 EN 14540:2004 (E) Annex C (normative) low temperature flexibility test C.1 Test piece Two test pieces lrom each hose shall be tested, measuring 80 mm x 40 mm lor a 25 mm inside diameter hose and 100 mm x 40 mm lor all other hose inside diameters and taken circumlerentially, that阻，weft ways, lrom a 0,3 m length 01 hose NOTE The test piece need not be condilioned C.2 Apparatus C.2.1 Two clamping jaws, with dimensions as shown in Figures C.l and C.2 to retain the test piece in position. One 01 the clamping jaws is lixed, whereas the other is moveable. The space between the jaws in the closed pos泊on(Iigure C.2) shall be three times the hose thickness including ribs where applicable. The space between the jaws in the open position when the test piece is straightened out shall be 50 mm plus the longitudinal increase which results from the tensile lorce 01 250 N exerted by the moveable jaw. The moveable jaw shall reciprocate with a speed 01 10 mm/s. A typical apparatus is given in Figure C.3 C.2.2 Freezer, capable 01 maintaining temperatures 01 (-20:t动。Cand ←30士2)oC. 12 EN 14540:2004 (E) Dimensions in milli汀letres20 R15 R10 。、才30 2 3 Co 飞Key 1 Grooves 2 Fixed jaw 3 Moveable jaw Figure C.1 -Clamping jaws 13 EN 14540:2004 (日C.3 Procedure Place the test piece and apparatus in the freezer (C.2.2) and carry out the lest at the temperature specified in 6.4 Clamp the test piece in position in the jaws with the hose lining as shown in Figure C.2 and in such a way that the free straight length between the jaws amounts to approximately 50 mm Immediately move the jaws to the closed position and leave for 10 min. Then cause the moveable jaw to carry out one lest cycle with a speed 01 10 mm/s and a force 01 250凡One lest cycle shall take 60 s according 10 the following: τime to open jaws 5s Open position 10 s Time to close jaws 5s Closed position 40 s After 15 cycles examine the test piece lor cracking or delachment of the Iining lrom the jacket C.4 Test report The test repo时shallinclude the following inlormalion a) a full description 01 the hose tested; b) a reference to this European Standard; c) whelher cracks or delamination were observed; d) the temperature at which the test was carried out; e) the date 01 the test 1岳lEN 14540:2004 (E) Annex D (normatíve) Hot surface resistance test D.1 Test piece The test piece shall be a sample 01 hose 01 length approximately口，5m. Mark the test piece in 4 places at approximately 900 iηtervals circumpherentially such that 2 01 the marks are coincident with the Ilat edges 01 the hose. NOTE This sampling procedure is designed to eliminate eccentric covers D.2 Apparatus 0.2.1 Filament rod, consisting 01 an electrically heated spiral resistance wire with a resistance 01 approximately 80 [l wound around a ceramic tube 01 diameter 21 mm and enclosed in a tube 01 quartz glass containing at least 95 % m/m 01 3iO, (silicon dioxide). An example 01 the design is given in Figure 0.1 NOTE The lilament rod can be obtained Irom Saint.Go扫ainQuartz GmbH, Hüttenstraße 10, D咱65201Weis如aden-Schierstein，users 01 this standard and Germany does (Iaboratory not constitute immersÎon heate叶Thisan endorsement by information CEN 01 the is given product for the named. convenience Equivalent ot products may扫eused il they can be shown to lead to the same results 。.2.2Temperature controller and recorder, capable 01 restoring the set temperature within 15 s 01 commencement 01 the test and maintaining the set temperature within the specilied limits 0.2.3 Thermocouple, type J or K, manulactured lrom wires 01 diameter (0，25土0，025)mm, joined end-on (i.e. not twisted together), looped around the filament rod 0.2.4 Loading weight, designed to press the lilament rod (0.2.1) against the vertically mounted test piece with a lorce (F) equivalent to 4 N (see Figure 0.2) 0.2.5 Cabinet or small enclosure, to eliminate local air movement in the vicinity 01 the test piece and filament rod. 17 EN 14540:2004 (日2 』←一-35 的7 6 3 8 5 m 7 Key 1 Temperature controller 5 Contact point 2 Recorder or coπlputer 6 Point 01 measuring 3 Thermocouple type J or K 7 Hose 4 Filament rod 8 Testing Areas F Force Figure D.2 -Poini 01 contacl 01 filamenl rod with hose (seen from ab町的19 EN 14540:2004 (E) D.3 Procedure Couple the test píece ín a vertícal posítíon, líII ít wíth water at a tes1 temperature 01 (15土5)\"C, expellíng all aír and subject ít to a pressure 01口，7MPa. At ambíent lemperature, adjust the test píece and lílament rod such that the fílament rod ís ín conìact wíth one 01 the marks on the test píece and the thermocouple ís at a dístance 01 5 mm aloη9 the lílament rod Irom the contact poínt. Swíng the lílament rod a四ayfrom the test píece, swítch on the tempe阻tu陀conlrolleraηd adjus1 to the test temperature (see 6.5). Maíntaín and record the lesl temperalure Ihrou♀houllhe tests. Press the lílament rod agaínst the mark on the test píece wíth a force 01 4 N After 120 s, remove the rod and examíne the test píece lor leaks 1I a leak occurs ín less than 120 s, stop the test and record the time to lailure 1I no leak occurs, repeat the lest at the lurther 3 marked test positions aller ensuring Ihat the filament rod conlact area and the Ihermocouple are clean. D.4 Test r告portThe test report shall include the lollowing inlormatíon: a) a lull description 01 Ihe hose tested; b) a relerence 10 Ihis European Standard; c) all test results, in seconds; d) the temperature at which Ihe !est was carried 0时，e) the date 01 the test 20 应N14540:2004 (E) Annex E (normative) Test for resistance to kinking E.1τ'est piece The test píece shall也ea hose assembly wíth a mínímum length 01 15 m E.2 Apparatus E.2.1 Device, consístíng 01 two planks 01 wood or metal sheet whích restríct the outward movement 01 the pressurized hose. One 01 the sides is lixed whereas the other can be moved and held at a given distance trom the other (See Figure E,l lor a typícal device.) 2 3 Key 1 Orígínal positíon 01 hose 2 Test posítíon 01 hose 3 Hose pulled when pressurízed 4 Distance七etweenplanks 01 wood ís 22x insíde diameter 01 hose 5 Couplings Figure E.1一Typicalapparatus for陌sistanceto kinking test 21 EN 14540:2004 (日巳3Procedure Position an unpressurized length 22 01 hose in the device (巳2)in a curved position with the distance between the restricting boards times the inside diameter 01 the hose. Fill the hose with water, expelling the air, pressurize to 1,0 MPa and lightly mark it at the point 01 contact with each 01 the restricting boards. NOTE This delineates the curved portion 01 the hose which may contain incipient kink points Pull the hose to align the original curved po时ionalongside a restricting board Finally check to determine whether visible kinks are obvious in the new curvature section 01 the hose E.4 Test report The test report shall contain the lollowing inlormation a) a lull description 01 the hose tested; b) a relerence to this European Standard; c) whether kinks were observed or not; d) the date 01 the test 22 EN 14540:2004 (巨}Annex F (i nformative) Recommended minimum frequencies of testing Table F.1 gives the recommended minimum Irequencies for the tests specified in this standard τype approval tests are those tests carried out to determine that the hose design and methods 01 manulacture meet the lull requirements 01 the standard. They should be repeated whenever the hose construction or the materials are modilied, or every three years, whichever occurs lirst Batch tests are those tests to be carried out on a hose or sample 01 hose lrom every batch manufactured Production tests are those tests to be carried out 0ηevery manulactured length 01 hose Table F.1 -Recommended minimum frequencies 01 testing DimensionJproperty under test Type test Batch test Production (with reference to relevant clause) test Inside diameter (5.1) J J J Tolerance on length (5.2) J J J Maximum mass (5.1) J J J Change in length at normal working pressure J J Change in external diameter at maximum J J working pressure (6.1.1) τwist at normal workin♀pressure (6.1.1) J J Prool pressure (6.1.2) J J Minimum burst pressure (6.1.3) J J Kink pressure (6.1.4) J J Adhesion (6.2) J J Accelerated ageing (6.3) J Low temperature Ilexibility (6.4) J 抖otsurlace resistance (6.5) J Non-kink prope时ies(6.6) J 23