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1、BRITISH STANDARD BS EN 13448:2002 Agricultural and forestry machinery Inter-row mowing units Safety The European Standard EN 13448:2001 has the status of a British Standard ICS 65.060.50; 65.060.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun shef
2、fieldun, na, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13448:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 15
3、 January 2002 BSI 15 January 2002 ISBN 0 580 38308 3 National foreword This British Standard is the official English language version of EN 13448:2001. The UK participation in its preparation was entrusted to Technical Committee AGE/23, Equipment for harvesting and conservation, which has the respon
4、sibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section ent
5、itled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compli
6、ance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international
7、and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issu
8、ed. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13448 December 2001 ICS 65.060.50 English version Agricultural and forestry ma
9、chinery - Inter-row mowing units - Safety Matriel agricole et forestier - Faucheuses interlignes - Scurit Land- und forstwirtschaftliche Maschinen - Zwischenreihenmher - Sicherheit This European Standard was approved by CEN on 3 October 2001. CEN members are bound to comply with the CEN/CENELEC Inte
10、rnal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member.
11、 This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are
12、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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROP
13、ISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13448:2001 E Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncon
14、trolled Copy, (c) BSI EN 13448:2001 (E) 2 Contents page Foreword3 Introduction.4 1Scope 4 2Normative references 4 3Terms and definitions5 4List of hazards6 5Safety requirements and/or measures 6 5.1General6 5.2Protection of cutting elements.6 5.3Hose protection7 5.4Thrown objects 7 5.5Requirements f
15、or pivoting booms .7 5.6Noise .7 6Test methods Thrown object test .8 6.1General test conditions.8 6.2Target8 6.3Test material.9 6.4Test method10 6.5Acceptance criteria10 7Information for use 10 7.1Instruction handbook 10 7.2Marking .11 Annex A (normative) List of hazards.12 Annex ZA (informative) Re
16、lationship of this document with EC Directives.16 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13448:2001 (E) 3 Foreword This European Standard has been prepared by Technical Committee CEN/TC 144 “Tractors and machinery for agriculture
17、 and forestry“, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2002, and conflicting national standards shall be withdrawn at the latest by June 20
18、02. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative annex ZA, which is an integral part of this doc
19、ument. Annex A is normative and contains the “List of hazards”. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greec
20、e, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13448:2001 (E) 4 Introduction This document is a type C standard as
21、stated in EN 1070. The machinery concerned and the extent to which hazards are covered is indicated in the scope of this standard. These hazards are specific to inter-row mowing units. The hazards that are common to all agriculture machines (self-propelled, mounted, semi-mounted and trailed) are dea
22、lt with in EN 1553:1999. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the prov
23、isions of this type C standard. 1 Scope This European Standard specifies the safety requirements and test methods for the design and construction of inter-row mowing units with vertical spindles mounted on grass cutting machines such as flail mowers, used in agriculture, forestry and landscaping to
24、cut the grass in the area between two successive obstruction. It describes methods for elimination or reduction of risks arising from their use. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer. This standard is not applicable to rotary m
25、owers and flail-mowers which are covered by EN 745. Environmental aspects have not been considered in this standard. This European Standard is not applicable to inter-row mowing units which are manufactured before the date of publication of this document by CEN. 2 Normative references This European
26、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 listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications app
27、ly to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-1:1991, Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, met
28、hodology. EN 292-2:1991, Safety of machinery Basic concepts, general principles for design Part 2: Technical principles and specifications (including amendment A1:1995). EN 294:1994, Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs. EN 745, Agricultural m
29、achinery Rotary mowers and flail mowers Safety. EN 1070, Safety of machinery Terminology. EN 1553:1999, Agricultural machinery Agricultural self-propelled, mounted, semi-mounted and trailed machines Common safety requirements. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00
30、 2006, Uncontrolled Copy, (c) BSI EN 13448:2001 (E) 5 EN ISO 3457:1995, Earth-moving machinery Guards and shields Definitions and specifications. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 1070 apply together with the following: 3.1 inte
31、r-row mowing unit rotary mower with vertical spindles equipped with pivoting boom, which allows grass cutting in the area between two successive obstructions (e.g. trees, posts, etc.) (see Figure 1) 3.2 pivoting boom device which allows the inter-row mowing unit to perform lateral translation moveme
32、nts parallel to the ground, thus allowing cutting within the area between two successive obstructions which would not be possible using fixed mowing machines (see Figure 1) 3.3 sensor device controlling boom movement, mounted forward of the inter-row mowing unit NOTEThe device may be formed of a met
33、al rod which, when pushed backwards on encountering an obstruction, sends a command causing the boom to retract. Immediately after the obstacle has been passed, the sensor returns to its original position, and the boom returns to the working position. 3.4 target device which registers the number of
34、impacts of objects propelled by the mowing unit 3.5 danger zone area surrounding the machine with a radius of 50 m as measured from the centre of the unit Key 1Blade enclosure 2Lateral protection Figure 1 Inter-row mowing unit Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00
35、 2006, Uncontrolled Copy, (c) BSI EN 13448:2001 (E) 6 4 List of hazards The hazards, among those which appear in EN 292-1 and EN 292-2 and are considered applicable to machines covered by the standard are listed in annex A. Annex A also indicates the hazards which have not been dealt with. 5 Safety
36、requirements and/or measures 5.1 General Machinery shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of EN 292 for hazards which are not dealt with by this standard and especially with annex A o
37、f EN 292-2:1991/A1:1995 when EN 292 does not give precise requirements. Unless otherwise specified in this standard, the machine shall comply with the requirements of EN 1553:1999 and EN 745 and with Tables 1, 3, 4 and 6 of EN 294:1992. 5.2 Protection of cutting elements The machine shall be equippe
38、d with an imperforate blade enclosure which fully covers the cutting elements, capable of ensuring a safety distance of at least 50 mm beyond the external trajectory of the cutting elements and which extend at least 3 mm below the plane of the blade tip circle (see Figure 2). The blade enclosure sha
39、ll be free of protrusions and sharp edges and, in the case of a mechanical pivoting boom, the device which allows the unit to rotate idly when it encounters an obstruction shall be designed, so that the rotary movement of the cutting elements is not imparted to the blade enclosure itself. The blade
40、enclosure and the parts of the machine ensuring the guarding shall withstand a vertical downwards load of 1200 N, and, in order to resist to the forces generated when the blade enclosure hits an obstruction, shall additionally withstand the following horizontal loads: ? 600 N for machines intended t
41、o be used with a tractor whose maximum power as given in the instruction handbook is less or equal to 37 kW; ? 1 000 N for the other machines. These requirements shall be checked by the test procedure and the test acceptance defined in EN 1553:1999, annex B. Licensed Copy: sheffieldun sheffieldun, n
42、a, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13448:2001 (E) 7 Dimensions in millimetres Key 1Ground 2Blade tip circle 3Blade enclosure Figure 2 5.3 Hose protection In the case of hydraulically or pneumatically operated inter-row mowing units, pipes and hoses shall be fitted,
43、assembled and if necessary retained to minimise contact with hot surfaces, friction and other unintentional exterior damage. Visual inspection of hoses and fittings shall be possible except those located inside frames. Hydraulic hoses containing fluid with a pressure of more than 5 MPa (50 bar) and/
44、or having a temperature over 50 C, and which are located within 1 m of the operator, shall be guarded in accordance with EN ISO 3457:1995, 4.9. Any part or component which may divert a possible jet of fluid can be considered as a sufficient protection device. 5.4 Thrown objects The possibility that
45、objects propelled by the rapid rotary action of the cutting elements during operation, which may constitute a hazard and risk of injury to the operator, shall be prevented. Tests shall be performed in accordance with the indications given in clause 6. 5.5 Requirements for pivoting booms Requirements
46、 for the pivoting boom including its strength, mounting, control system and control devices will be added at a future revision of the standard. 5.6 Noise Noise emission from inter-row mowing units shall be measured according to EN 1553:1999, annex D. Noise will be fully dealt with at a future revisi
47、on of the standard. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 01:39:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13448:2001 (E) 8 6 Test methods Thrown object test NOTERound Robin tests will be carried out based on this test method. The results of these tests will possibly indicate
48、the need for the revision of this standard. 6.1 General test conditions During the tests, the inter-row mowing unit shall be operated at the rotation frequency recommended by the manufacturer, e.g. at a power take-off rotation frequency of 540 min-1 or 1 000 min-1. All the tests shall be performed u
49、sing the same safety guard. Adjustable devices which may influence the efficiency of the safety guard shall be located in the least favourable position. During the tests, the forward travel speed shall not be more than 8 km/h. 6.2 Target The target shall be sited on natural, compact, level land. 6.2.1 Target for a rotary inter-row mower hitched to the rear of a tractor The target consists of four vertical panels (see Figure 3) which shall comply with the specifications in 6.2.3. Panels 2 and 4 shall be 4 000 mm long. The length of panels 1