SIST EN 13781:2002
(Main)Protective helmets for drivers and passengers of snowmobiles and bobsleighs
Protective helmets for drivers and passengers of snowmobiles and bobsleighs
This European Standard specifies requirements and test methods for protective helmets for drivers and passengers of snowmobiles and bobsleighs.
Additional requirements for eye protectors and face shields are specified in EN 13178.
Schutzhelme für Fahrer und Mitfahrer von Schneemobilen und Bobs
Diese Europäische Norm legt Anforderungen und Prüfverfahren für Schutzhelme für Fahrer und Mitfahrer von Schneemobilen und Bobs fest.
Zusätzliche Anforderungen für Augenschutzgeräte und Gesichtsschutzschilde sind in EN 13178 festgelegt.
Casques de protection pour conducteurs et passagers de motoneiges et bobsleighs
La présente Norme européenne prescrit les exigences et méthodes d'essai relatives aux casques de protection pour conducteurs et passagers de motoneiges et bobsleighs.
Les exigences supplémentaires s'appliquant aux protecteurs de l'?il et aux écrans faciaux sont spécifiées dans l'EN 13178.
Varovalne čelade za voznike in potnike motornih snežnih sani in bobov
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RERYSchutzhelme für Fahrer und Mitfahrer von Schneemobilen und BobsCasques de protection pour conducteurs et passagers de motoneiges et bobsleighsProtective helmets for drivers and passengers of snowmobiles and bobsleighs97.220.20Oprema za zimske športeWinter sports equipment13.340.20Varovalna oprema za glavoHead protective equipmentICS:Ta slovenski standard je istoveten z:EN 13781:2001SIST EN 13781:2002en01-junij-2002SIST EN 13781:2002SLOVENSKI
STANDARD
SIST EN 13781:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13781November 2001ICS 13.340.20English versionProtective helmets for drivers and passengers of snowmobilesand bobsleighsCasques de protection pour conducteurs et passagers demotoneiges et bobsleighsSchutzhelme für Fahrer und Mitfahrer von Schneemobilenund BobsThis European Standard was approved by CEN on 14 October 2001.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, 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© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13781:2001 ESIST EN 13781:2002
EN 13781:2001 (E)2ContentspageForeword.3Introduction.31 Scope.42 Normative references.43 Terms and definitions.44 Requirements.65 Testing.106 Marking.157 Information supplied by the manufacturer.15Annex A (normative)
Test results – Uncertainty of measurement.24Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directive 89/686/EEC.25Bibliography.26SIST EN 13781:2002
EN 13781:2001 (E)3ForewordThis European Standard has been prepared by Technical Committee CEN/TC 158 "Head protection", thesecretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of anidentical text or by endorsement, at the latest by May 2002, and conflicting national standards shall bewithdrawn at the latest by May 2002.This European Standard has been prepared under a mandate given to CEN by the European Commissionand the European Free Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.Annex A is normative.This standard includes a Bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United Kingdom.IntroductionThe intention of helmets is to reduce the risk of injury to the skull and part of the head surrounded by thehelmet.The protection given by a helmet depends on the circumstances of the accident and wearing a helmetcannot always prevent death or long term disability.A proportion of the energy of an impact is absorbed by the helmet, thereby reducing the force of the blowsustained by the head. The structure of the helmet may be damaged in absorbing this energy and anyhelmet that sustains a severe blow should be replaced even if damage is not apparent.To achieve the performance of which it is capable, and to ensure stability on the head, a helmet should beas closely fitting as possible consistent with comfort. In use it is essential that the helmet is securelyfastened, with any chin strap under proper tension at all times.SIST EN 13781:2002
EN 13781:2001 (E)41 ScopeThis European Standard specifies requirements and test methods for protective helmets for drivers andpassengers of snowmobiles and bobsleighs.Additional requirements for eye protectors and face shields are specified in EN 13178.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text, and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this European Standard only when incorporated in it by amendment or revision. For undatedreferences the latest edition of the publication referred to applies (including amendments).EN 352-1, Hearing protectors - Safety requirements and testing - Part 1: Ear muffs.EN 960, Headforms for use in the testing of protective helmets.EN 13087-6: 2000, Protective helmets - Test methods - Part 6: Field of vision.EN 13178, Personal eye-protection - Eye protectors for snowmobile users.ISO 6487: 2000, Road vehicles - Measurement techniques in impact tests - Instrumentation.3 Terms and definitionsFor the purposes of this European Standard the following terms and definitions apply.3.1protective helmet for user of snowmobile and of bobsleigh (abbreviated to "helmet" below)helmet primarily intended to protect the wearer's head against impact ,which may provide additionalprotection like protection against cold and noise3.2shellhard part of the helmet that gives it its general shape3.3protective paddingmaterial used to absorb impact energy3.4comfort paddingmaterial provided for the wearer's comfort3.5retention systemcomplete assembly by means of which the helmet is maintained in position on the head, including anydevices for adjustment of the system or to enhance the wearer's comfortSIST EN 13781:2002
EN 13781:2001 (E)53.6chin-strappart of the retention system consisting of a strap that passes under the wearer's jaws to keep the helmet inposition3.7chin-cupaccessory of the chin-strap that fits round the point of the wearer’s chin3.8peakextension of the shell above the eyes3.9lower face coverdetachable part of the helmet covering the lower part of the face3.10chin guardintegral part of the helmet covering the lower part of the face and designed to protect against impact3.11neck curtainpart of the helmet attached to the lower edge designed to protect against adverse weather conditions, dirtand small stones3.12visortransparent protective screen integral with the helmet extending over the eyes and covering part of theface3.13eye protectorstansparent protectors that enclose and cover the eyes3.14face shieldprotective device extending over the eyes and covering part of the face3.15basic plane of the human headplane at the level of the opening of the external auditory mastus (external ear opening) and the lower edgeof the orbits ( lower edge of the eye sockets)3.16basic plane of the headformplane which corresponds to the basic plane of the human head3.17reference planeconstruction plane parallel to the headform at a distance from it which is a function of the size of theheadformsSIST EN 13781:2002
EN 13781:2001 (E)63.18central vertical axisline relative to a human head or headform or helmet that lies in the plane of symmetry, and that is normalto the basic plane at a point equidistant from the front and back of the headform or (for helmets) ofheadform that simulates the head that the helmet is intended to fit3.19longitudinal vertical median planevertical plane of symmetry of a human head or headform or of a helmet as it is intended to be worn on thehead3.20central transverse vertical median planeplane at right angles to the longitudinal vertical plane and passing through the central vertical axis3.21size (of a helmet)size of a reference headform defined in EN 9603.22protective helmet typecategory of protective helmets which do not differ in such essential respects as the trade name or mark, orthe materials or dimensions of the shell, of the retention system or of the protective paddingNOTE
A protective helmet type may include a range of helmet sizes, provided that the thickness of the protectivepadding in each size in the range is at least equal to that in the protective helmet which when subjected to the testssatisfied the requirements of this standard.3.23snowmobileoff-road vehicle moved on the snow by a track driven by a gasoline engine and which is steered by turningfront skies3.24bobsleighsports equipment without any inside or outside driving power, for using in downhill gliding in ice channels4 Requirements4.1 Construction4.1.1 The basic construction of the helmet shall be in the form of a shell, containing means of absorbingimpact energy, and a retention system. The helmet usually has also connection systems for accessories.4.1.2 The helmet may be fitted with accessories such as a communication system, hearing protectors, eyeprotectors, face shield or a lower face cover. It may also have a detachable peak.4.1.3 The design of the helmet shall be such that the temperature in the space between the head and thehelmet does not rise or decrease inordinately. Ventilation holes or other means may be provided in theshell.4.1.4 The outer surface of the shell shall be perfectly smooth. Above the reference plane, the shape shallbe in the form of a continuous convex curve, except where shaping is provided for functional purposes.SIST EN 13781:2002
EN 13781:2001 (E)7Below the reference plane, irregularities in the curve shall be smoothly faired. The shell shall notincorporate an integral peak but may incorporate an integral lower face cover.4.1.5 There shall be no permanently fixed external projections greater than 5 mm above the outer surfaceof the shell. Any external projections other than press-fasteners shall be smooth and adequately faired.Rivet heads shall be radiused and shall not project more than 2 mm above the outer surfaces of the shell.4.1.6 There shall be no inward-facing sharp edges on the inside of the helmet.4.1.7 The integrated components of the helmet which are intended to protect the head of the user shall beassembled such that they may not become easily detached or move when tested in accordance with 5.1.4.1.8 Where means for attaching eye protectors are not provided the profile at the front edge shall notprevent the wearing of goggles.Testing in accordance with 5.14.2 Compatibility with additional devicesNo component or device may be fitted to or incorporated in the protective helmet unless it is designed insuch a way that it will not cause injury. When the component or device is fitted to or incorporated in thehelmet, the helmet shall still comply with the requirements of this standard.4.3 Protected areaThe shell shall cover all areas above plane AA
in Figure 1, and shall extend downwards at least as far asthe lines CDEF on both sides of the headform.4.4 Retention system4.4.1.The helmet shall be held in place on the wearer's head by means of a retention system which issecured under the lower jaw. All parts of the retention system shall be permanently attached to the systemor to the helmet. Testing in accordance with 5.1.4.4.2. If the retention system includes a chin-strap the strap shall be not less than 20 mm wide under aload of (150
5) N applied in accordance with 5.6.2. The chin-strap shall not include a chin-cup.4.4.3 The device to open the retention system shall not be capable of opening other than as a result of adeliberate act. In the case of a press-fastener opening device, the press-fastener shall be recessed, thesurface to which the pressure is applied shall be fitted with a fairing about its whole periphery so thatopening does not occur when the surface is pressed with a sphere of 100 mm diameter. Testing inaccordance with 5.1.4.4.4 If a retention system includes a quick-release mechanism, then the method of release of thismechanism shall be self-evident. Any levers, tabs, buttons or other components which need to beoperated to release the mechanism shall be coloured red, those parts of the rest of the system which arevisible when closed shall not be similarly coloured, and the mode of operation shall be permanentlyindicated. Testing in accordance with 5.1.4.4.5 The retention of the helmet on the head by the retention system shall be verified in accordance with5.6. When a helmet type includes a range of sizes, the helmet subjected to the test shall be thatpresenting the least favourable conditions (such as the thickest padding).SIST EN 13781:2002
EN 13781:2001 (E)84.5 Materials4.5.1 The characteristics of the materials used in the manufacture of helmets shall be known not toundergo appreciable alteration under the influence of ageing or of the circumstances of use to which thehelmet is normally subjected, such as exposure to sun, extremes of temperature and rain.For those parts of the helmet coming into contact with the skin, the materials used shall be known not toundergo appreciable alteration through the effect of perspiration or of toilet preparations. Themanufacturer shall not use materials known to cause skin troubles. The suitability of a proposed newmaterial shall be established by the manufacturer.4.5.2 After the performance of one of the prescribed tests, the protective helmet shall not break or deformin a way which is dangerous to the wearer.4.6 Field of visionA helmet size shall be selected from among the existing sizes of a helmet type which is likely to yield theleast favourable result. The helmet shall be placed on the appropriate size of headform according to theprocedure specified in 5.4 of EN 13087-6: 2000.There shall be no occultation in the field of vision given in Figure 2.(i) horizontally: two segments of dihedral angles symmetrical in relation to the median longitudinal verticalplane of the headform and situated between the reference and the basic planes.Each of these dihedral angles is defined by the longitudinal vertical median plane of the headform and thevertical plane forming an angle of not less than 105 ° with the median longitudinal vertical plane and whoseedge is the straightline L K;(ii) upwards: a dihedral angle defined by the reference plane of the headform and a plane forming an angleof not less than 7o with the reference plane and whose edge is the straight line L1, L2 the points L1 and L2representing the eyes;(iii) downwards: a dihedral angle defined by the basic plane of the headform and a plane forming an angleof not less than 45
with the basic plane and whose edge is the straight line K1 K2.4.7 Face shields4.7.1 The helmet, fitted with the face shield being tested, shall be placed on a test headform of appropriatesize, selected from those listed in Table 3.4.7.2 When the face shield is in the raised position, the angle between the secant MN shown in Figure 3and the horizontal shall be at least 5 , with the point M situated below the horizontal plane passing throughpoint N.4.8 Face-shields and eye protectorsFace-shields and eye protectors used with the helmet shall fulfil the requirements of EN 13178.SIST EN 13781:2002
EN 13781:2001 (E)94.9 Energy absorption efficiencyThe absorption efficiency shall be considered sufficient where the resultant acceleration measured at thecentre of gravity of the headform at no time exceeds 275 g and the Head Injury Criterion does not exceed2400, when tested in accordance with 5.44.10 MassThe mass of the helmet should be as light as possible, and the mass given by the manufacturer shall beverified.4.11 Conspicuity marking (optional)4.11.1 GeneralThe helmet may be provided with reflective materials, which contribute to the conspicuity o
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