SIST EN 1947:2003
(Main)Fire-fighting hoses - Semi-rigid delivery hoses and hose assemblies for pumps and vehicles
Fire-fighting hoses - Semi-rigid delivery hoses and hose assemblies for pumps and vehicles
This European Standard specifies the requirements and test methods for semi-rigid reel hoses for use on fire-fighting vehicles and trailer pumps. The hoses are intended for use at a maximum working pressure of 1,5 MPa for normal pressure hoses (category I) and 4,0 MPa for high pressure hoses (category II). The hoses are further subdivided into types and classes (see clause 4).
The standard applies to delivery hoses for fire-fighting purposes intended for use at a minimum temperature of -20 °C.
NOTE 1 Hoses for use at temperatures lower than -20 °C may be supplied by agreement between the manufacturer and purchaser.
Hoses conforming to this standard should be used with fire hose couplings conforming to the relevant national standards couplings.
Requirements are also given for hose assemblies (see clause 8) where these are fitted by the hose manufacturer.
NOTE 2 All pressures are expressed in megapascals. 1 MPa = 10 bar.
Feuerlöschschläuche - Formstabile Druckschläuche und Einbände für Pumpen und Feuerwehrfahrzeuge
Diese Europäische Norm legt die Anforderungen und Prüfverfahren für formstabile Haspelschläuche fest, die bei Feuerlöschfahrzeugen und Pumpen eingesetzt werden. Die Schläuche sind für den Gebrauch bei einem maximalen Arbeitsdruck von 1,5 MPa für Normaldruckschläuche (Kategorie I) und 4,0 MPa für Hochdruck-schläuche (Kategorie II) vorgesehen. Die Schläuche werden weiterhin in Typen und Klassen unterteilt (siehe Abschnitt 4).
Die Norm gilt für Druckschläuche für Feuerlöschzwecke, die für einen Einsatz bis zu einer niedrigsten Temperatur von - 20 °C vorgesehen sind.
ANMERKUNG 1 Schläuche für den Einsatz bei Temperaturen unter - 20 °C dürfen auf der Grundlage einer Übereinkunft zwischen Hersteller und Anwender geliefert werden.
Schläuche, die dieser Norm entsprechen, sollten mit Schlauchkupplungen versehen sein, die den jeweiligen nationalen Normen für Kupplungen entsprechen.
Auch für Schlaucheinbände werden Anforderungen angeführt (siehe Abschnitt 8), falls diese vom Schlauch-hersteller montiert wurden.
ANMERKUNG 2 Sämtliche Drücke werden in Megapascal angegeben. 1 MPa = 10 bar.
Tuyaux de lutte contre l'incendie - Tuyaux de refoulement semi-rigides et flexibles pour pompes et véhicules
La présente Norme européenne spécifie les exigences et les méthodes d'essai relatives aux tuyaux semi-rigides installés sur les véhicules de lutte contre l'incendie et aux motopompes remorquables. Les tuyaux sont destinés a etre utilisés a une pression maximale de service de 1,5 MPa pour le service normal (catégorie I) et de 4,0 MPa pour les tuyaux haute pression (catégorie II). Les tuyaux sont ensuite répartis en types et classes (voir article 4).
La norme s'applique aux tuyaux de refoulement pour la lutte contre l'incendie, destinés a etre utilisés a une température ambiante minimale de - 20 °C.
NOTE 1 Les tuyaux destinés a une utilisation a des températures inférieures a - 20 °C peuvent etre fournis dans le cadre d'un accord entre le fabricant et l'acheteur.
Il convient d'utiliser les tuyaux conformes a la présente norme avec des raccords conformes aux normes nationales relatives aux raccords.
La présente norme fournit, par ailleurs, les exigences relatives aux flexibles (voir article 8) lorsqu'ils sont montés par le fabricant des tuyaux.
NOTE 2 Toutes les pressions sont exprimées en mégapascals. 1 MPa = 10 bar.
Gasilske cevi - Poltoge tlačne cevi, vgrajene k črpalkam in v vozila
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fire-fighting hoses - Semi-rigid delivery hoses and hose assemblies for pumps and vehiclesLODTuyaux de lutte contre l'incendie - Tuyaux de refoulement semi-rigides et flexibles pour pompes et véhiculesFeuerlöschschläuche - Formstabile Druckschläuche und Einbände für Pumpen und FeuerwehrfahrzeugeTa slovenski standard je istoveten z:EN 1947:2002SIST EN 1947:2003en23.040.70Gumene cevi in armatureHoses and hose assemblies13.220.10Gašenje požaraFire-fightingICS:SLOVENSKI
STANDARDSIST EN 1947:200301-maj-2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1947August 2002ICS 13.220.10; 23.040.70English versionFire-fighting hoses - Semi-rigid delivery hoses and hoseassemblies for pumps and vehiclesTuyaux de lutte contre l'incendie - Tuyaux de refoulementsemi-rigides et tuyaux équipés de raccords pour pompes etvéhiculesFeuerlöschschläuche - Formstabile Druckschläuche undEinbände für Pumpen und FeuerwehrfahrzeugeThis European Standard was approved by CEN on 7 April 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1947:2002 E
EN 1947:2002 (E)2ContentspageForeword.4Introduction.51Scope.62Normative references.63Terms and definitions.74Classification.74.1General.74.2Classification by types (hose construction).74.3Classification by class (materials for lining and cover).84.4Classification by category.85Dimensions, tolerances and maximum mass.85.1Inside diameter and maximum mass.85.2Length and tolerances on length.95.3Concentricity.96Performance requirements of finished hose.96.1Hydrostatic requirements.96.1.1Deformation under maximum working pressure.96.1.2Deformation under proof pressure.106.1.3Minimum burst pressure.106.1.4Kink pressure.106.2Adhesion.106.3Accelerated ageing.106.4Abrasion resistance.116.4.1Abrasion resistance of class 5 and class 6 hoses.116.4.2Abrasion resistance of classes 1, 2, 3 and 4 hoses.116.5Low temperature flexibility.116.6Hot surface resistance.116.7Ozone resistance.126.8Bending and crush resistance.126.9UV-resistance (xenon arc lamp).126.10Loss in mass on heating.126.11Deformation under crushing (type C only).127Marking.128Hose assemblies.13Annex A
(normative)
Kink pressure test.14A.1Principle.14A.2Test piece.14A.3Apparatus.14A.4Procedure.14A.5Test report.14Annex B
(normative)
Accelerated ageing test.15B.1Test piece.15B.2Procedure.15Annex C
(normative)
Surface abrasion resistance test.16C.1Test piece.16C.2Apparatus.16
EN 1947:2002 (E)3C.3Procedure.18C.4Test report.18Annex D
(normative)
Point abrasion resistance test.19D.1Test piece.19D.2Apparatus.19D.3Procedure.21D.4Test report.21Annex E
(normative)
Hot surface resistance test.22E.1Test piece.22E.2Apparatus.22E.3Procedure.25E.4Test report.25Annex F
(normative)
Bending and crush resistance test.26F.1Test piece.26F.2Procedure.26F.3Test report.28Annex G
(normative)
Deformation under crushing test.29G.1Test piece.29G.2Apparatus.29G.3Procedure.29G.4Test report.31Annex H
(normative)
Test for hose assemblies.32H.1Test piece.32H.2Procedure.32Annex I
(informative)
Recommended minimum frequencies of testing.33Bibliography.34
EN 1947:2002 (E)4ForewordThis document EN 1947:2002 has been prepared by Technical Committee CEN/TC 192, "Fire service equipment",the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by February 2003, and conflicting national standards shall be withdrawn at the latestby February 2003.At present there is no existing ISO Standard on the same subject but ISO 4642:1978 “Rubber products - Hoses,non-collapsible, for fire-fighting service” is under revision by ISO/TC 45.
Requirements for semi-rigid hoses for usewith fixed systems are given in EN 694; those for non-percolating layflat hoses are given in prEN 1924 (pumps andvehicles) and prEN 14540 (fixed systems).Recommendations on the frequency at which tests specified in this standard should be carried out are given inannex I.Users of this European Standard are advised to consider the desirability of independent certification of productconformity with this European Standard based on testing and continuing surveillance, which may be coupled withassessment of a supplier’s quality system against EN ISO 9001.The annexes A to H are normative ; the annex I is informative.This European Standard includes a Bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.
EN 1947:2002 (E)5IntroductionThe European Standard is mainly concerned with fire service semi-rigid delivery hoses and incorporates thosehoses used manually to control and extinguish fires.
EN 1947:2002 (E)61 ScopeThis European Standard specifies the requirements and test methods for semi-rigid reel hoses for use on fire-fighting vehicles and trailer pumps.
The hoses are intended for use at a maximum working pressure of 1,5 MPa fornormal pressure hoses (category I) and 4,0 MPa for high pressure hoses (category II). The hoses are furthersubdivided into types and classes (see clause 4).The standard applies to delivery hoses for fire-fighting purposes intended for use at a minimum ambienttemperature of -20 °C.NOTE 1Hoses for use at temperatures lower than -20 °C may be supplied by agreement between the manufacturer andpurchaser.Hoses conforming to this standard should be used with fire hose couplings conforming to the relevant nationalstandards couplings.Requirements are also given for hose assemblies (see clause 8) where these are fitted by the hose manufacturer.NOTE 2All pressures are expressed in megapascals. 1 MPa = 10 bar.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references, the latest edition of thepublication referred to applies (including amendments).EN
27326:1993, Rubber and plastics hoses — Assessment of ozone resistance under static conditions (ISO7326:1991).EN 28033, Rubber and plastics hose — Determination of adhesion between components (ISO 8033:1991).EN ISO 176:1999, Plastics — Determination of loss of plasticizers — Activated carbon method (ISO 176:1976).EN ISO 1307, Rubber and plastics hoses for general-purpose industrial applications — Bore diameters andtolerances, and tolerances on length (ISO 1307:1992).EN ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing (ISO 1402:1994).EN ISO 4672:1999, Rubber and plastics hoses — Sub-ambient temperature flexibility tests (ISO 4672:1997).ISO 188, Rubber, vulcanized or thermoplastic— Accelerated ageing and heat-resistance tests.ISO 4671:1984, Rubber and plastics hoses and hose assemblies — Methods of measurement of dimensions.ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary.
EN 1947:2002 (E)73 Terms and definitionsFor the purposes of this European Standard the following term and definition apply, together with those for workingpressure, proof pressure and burst pressure given in ISO 8330.3.1semi-rigid hosehose which maintains its round cross-section even when unpressurized4 Classification4.1 GeneralAll types and classes of hose shall be so flexible that they can be rolled and kept on a drum of minimum diameter200 mm for 12 mm inside diameter, 19 mm inside diameter and 25 mm inside diameter hose and of minimumdiameter 280 mm for 33 mm inside diameter hose.Hoses shall be one of two categories distinguished by the maximum working pressure.
Each hose shall be furtherdivided into one of three types distinguished by its construction, and then into six classes distinguished by thematerials used for lining and cover.NOTEThe hose may be coloured by agreement between the purchaser and the manufacturer.4.2 Classification by types (hose construction)Type A hoses shall consist of:a) a seamless rubber or plastics lining;b) a textile spiral or braided reinforcement;c) a rubber or plastics cover.Type B hoses shall consist of:a) a seamless rubber or plastics lining;b) a circular woven textile reinforcement with a rigid spiral helix;c) an uncovered or rubber or plastics cover.Type C hoses shall consist of:a) a seamless rubber or plastics lining;b) any suitable reinforcement;c) a rubber or plastics cover.NOTEWhilst the construction of types A and C hoses may be similar or even identical, the performance requirementsdiffer for the following: burst and proof pressure, adhesion, hot surface resistance, crush resistance.
EN 1947:2002 (E)84.3 Classification by class (materials for lining and cover)The hose types shall be further subdivided into six classes dependent on the materials used in the construction inaccordance with Table 1.Table 1 — Classes and materialsClassLining materialCover material1rubberrubber2plasticsplastics3rubberplastics4plasticsrubber5rubberno cover6plasticsno cover4.4 Classification by categoryAll hoses shall be divided into two categories dependent on the maximum working pressure in accordance withTable 2.Table 2 — Maximum working pressure, proof pressure and minimum burst pressurePressureCategory ICategory IIMpaTypes A and BTypes A and BType CClasses 1 to 6Classes 1 to 6Classes 1 to 6Maximum working pressure1,5 4,0 4,0Proof pressure3,0 6,0 8,0Minimum burst pressure4,510,012,0EXAMPLE: A type C hose, constructed using a rubber lining and rubber cover and which has a maximum workingpressure of 4,0 MPa, a proof pressure of 8,0 MPa and a minimum burst pressure of 12,0 MPa is classified asII/C/1.5 Dimensions, tolerances and maximum mass5.1 Inside diameter and maximum massThe inside diameter of the hose and tolerances, when measured in accordance with ISO 4671 using any suitablemethod stated in clause 4 of that standard, shall conform to the requirements given in Table 3. The mass per metrelength of the hose shall be in accordance with Table 3.
EN 1947:2002 (E)9Table 3 — Inside diameter, tolerances on inside diameter and maximum mass per unit lengthInside diameterTolerances for inside diameterMass per unit lengthmmmmkg/mTypes A and CType BTypes A and CType Bmax.max.120 to + 0,6—0,30—190 to + 0,90 to + 1,50,750,25250 to + 1,20 to + 1,50,900,35330 to + 1,60 to + 2,01,000,505.2 Length and tolerances on lengthThe total length of hose supplied shall be in accordance with the purchaser’s requirements and shall be stated inmetres. Tolerance on length shall be in accordance with EN ISO 1307.5.3 ConcentricityWhen tested in accordance with 8.2 Method 2 of ISO 4671:1984, the variation from concentricity measuredbetween inside and outside diameters shall not exceed the following values:Types A and C1,5 mmType B0,4 mm6 Performance requirements of finished hose6.1 Hydrostatic requirements6.1.1 Deformation under maximum working pressureThe dimensional stability of the hose, when tested in accordance with EN ISO 1402, shall conform to therequirements given in Table 4. The length of the test piece shall be 1 m.For category I hoses the initial test pressure shall be 0,07 MPa and the final test pressure shall be 1,5 MPa. Forcategory II hoses the initial test pressure shall be 0,07 MPa and the final test pressure shall be 4,0 MPa.The twist shall be not greater than 30°/m for types A and C. For type B the twist may be greater than 30°/m but inthis case it shall only be in a direction which closes the coupling and shall be stated in the test report.
EN 1947:2002 (E)10Table 4 — Change in length and external diameterTolerances for types A, B andC%Change in length0 to +7,5Change in external diameter0 to +7,5NOTEHose with a lower maximum change in length may be agreed between the purchaser and manufacturer.6.1.2 Deformation under proof pressureA proof pressure hold test shall be carried out on three hose lengths each of 1 m in accordance with EN ISO 1402.The proof pressure shall be as given in table 2 and on examination during the test, the test pieces shall not showany evidence of leakage, cracking, abrupt distortion or other signs of failure.6.1.3 Minimum burst pressureA burst pressure test shall be carried out in accordance with EN ISO 1402 on the three test pieces used for thedeformation under proof pressure test, until the hose bursts.Each of the test pieces shall not burst at a pressure less than that given in Table 2.6.1.4 Kink pressureWhen tested in accordance with annex A, the test piece shall neither burst nor show any visible signs of defectbefore or after pressurizing at 1,5 MPa for category I hoses and at 4,0 MPa for category II hoses.6.2 AdhesionWhen tested in accordance with EN 28033 the adhesion between all components shall be not less than 1,5 kN/mfor type A hoses, 1,0 kN/m for type B hoses and 2,0 kN/m for type C. Dependent on the construction of the hose,the test piece in all cases shall be decided by the test laboratory in accordance with EN 28033.6.3 Accelerated ageingWhen tested in accordance with annex B, the three test pieces subjected to the burst pressure test shall conform tothe requirements of 6.1.3.
The mean of the burst pressure test results shall not decrease by more than 25 % fromthe initial mean burst value determined from the results obtained in 6.1.3.The resultant adhesion of the fourth test piece shall be in accordance with the requirements of 6.2.NOTEThere is no limitation on the increase in the values of these properties.
EN 1947:2002 (E)116.4 Abrasion resistanceNOTEAbrasion tests are specific to different hose constructions and/or materials.
Two procedures withdifferent values are therefore specified here to avoid unfair discrimination.
In addition, it is important to note thatthe requirements, revolutions as given in table 5 and double strokes as given in Table 6, cannot be correlated.6.4.1 Abrasion resistance of class 5 and class 6 hosesWhen tested in accordance with annex C and using the number of revolutions given in Table 5, at least four of thefive test pieces shall not burst on being subjected to the normal working pressure given in Table 2.Table 5 — Abrasion resistance of uncovered hose (classes 5 and 6)Inside diameterNumber of revolutionsmm12, 19, 25 and 333006.4.2 Abrasion resistance of classes 1, 2, 3 and 4 hosesWhen tested in accordance with annex D, the average number of double strokes completed before burst shall benot less than that given in Table 6.Table 6 — Abrasion resistance of covered hose (classes 1, 2, 3 and 4)Inside diameterMinimum number of double strokes beforemmburst12, 19, 25 and 331206.5 Low temperature flexibilityThe test shall be carried out in accordance with clause 4 Method B of EN ISO 4672:1999 using a mandrel ofoutside diameter equal to 12 times the inside diameter of the hose. After bending the hose round the mandrelthrough 180° for (10 ± 2) s at a temperature of (-20 ± 2) °C or lower if requested, it shall not show any signs ofbreaking or cracking and shall meet the proof pressure requirement given in Table 2.6.6 Hot surface resistanceWhen tested in accordance with annex E at a test temperature of (300 ± 10) °C for types A and B and of(400 ± 10) °C for type C, in none of the four tests shall the test piece show signs of leakage within 60 s from theapplication of the filament rod or on removal of this filament rod after the specified period.
EN 1947:2002 (E)126.7 Ozone resistanceAfter carrying out an ozone resistance test in accordance with 7.1 Method 1 of EN 27326:1993 for all insidediameter sizes and types, the hose lining and cover shall not show any signs of cracking. The lining shall beexamined by slitting the hose wall.6.8 Bending and crush resistanceWhen tested in accordance with annex F at a temperature of (23 ± 2) °C, the ratio T/D shall not exceed 1,20.6.9 UV-resistance (xenon arc lamp)NOTEA test for resistance to UV and requirements based on ISO 11758 will be added at the first revision of this standard,when more experience has been acquired.6.10 Loss in mass on heatingWhen tested in accordance with 6.2 Method B of EN ISO 176:1999 the lining and cover materials shall not show aloss in mass greater than 4 %.6.11 Deformation under crushing (type C only)When tested in accordance with annex G, the test piece shall allow the free passage of a ball of the diameterspecified in Table 7.Table 7 — Deformation under crushingInside diameterCrush dimension,outside diameterMinimum forceBall diametermmmmNmm12 65001019 9,5500162512,5500213316500277 MarkingEach length of hose shall be legibly and permanently marked with the following minimum information, at least twiceper length at both ends for type B hoses and along the whole length at minimum intervals of 2 m for types A and Choses:a) the manufacturer’s name or trademark;b) the number and date of this standard;c) the hose category;d) type, class;e) inside diameter in mm;f) maximum working pressure in MPa (bar);
EN 1947:2002 (E)13g) the quarter and year of manufacture;h) the test temperature if lower than -20 °C (see 6.5);i) the approval number and certifying body or its reference, where applicable.EXAMPLE: Man-EN 1947:2002-1-A-2-19-1,5(15bar) - 2Q/20028 Hose assembliesNOTE 1In some circumstances it is not the manufacturer who supplies the hose complete with couplings attached.
In thiscase, the purchaser should be aware that this is outside the scope of this standard, and should ensure by other means that thesecurity of the hose assembly has been tested.Where the hose couplings are fitted by the hose manufacturer, the security of the hose assembly shall be tested inaccordance with annex H by the manufacturer before delivery to the purchaser.
There shall be no sign of leakageor movement of the hose from the coupling.NOTE 2The hose manufacturer should fit hose couplings which conform to any relevant national standards or legalrequirements of the country of use.
EN 1947:2002 (E)14Annex A(normative)Kink pressure testA.1 PrincipleThis method tests the hose for leakage or damage in a kinked test piece held under pressure.A.2 Test pieceThe test piece shall be a hose assembly, 2,0 m length of hose.A.3 ApparatusA.3.1Source of hydrostatic pressure with water as the test medium, capable of maintaining a pressure of1,5 MPa for category I hose and of 4 MPa for category II hose.A.4 ProcedureConnect the test piece to the pressure source and fill with water, expelling all air before securely clamping the freeend of the hose. Maintain a pressure of 0,07 MPa in the test piece while bending it through 180° at a pointapproximately midway along its length. Tie the free end of the hose back on itself, as close as possible to thesecure end, so as to form a sharp kink, ensuring that the tie does not prevent subsequent expansion of thediameter of the test piece.Raise the pressure in the test piece to that given in 6.1.4 over a period of 60 s. Maintain the pressure for 1 min.Examine the test piece for any sign of leakage or damage prior to releasing the pressure.A.5 Test reportThe test report shall include the following information:a) a full description of the hose tested;b) a reference to this European Standard;c) any evidence of
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