BS EN 792-7-2001 手持非电动工具.安全要求.研磨机.pdf

BRITISH STANDARD BS EN 792-7:2001 Hand-held non-electric power tools Safety requirements Part 7: Grinders The European Standard EN 792-7:2001 has the status of a British Standard ICS 25.140.10; 25.140.99 ? Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- BS EN 792-7:2001 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 20 September 2002 © BSI 20 September 2002 ISBN 0 580 40444 7 National foreword This British Standard is the official English language version of EN 792-7:2001. The UK participation in its preparation was entrusted to Technical Committee MCE/8, Compressors, pneumatic tools, pneumatic machines and vacuum technology, which has the responsibility 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 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international 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 50, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 792-7 December 2001 ICS 25.140.10; 25.140.99Supersedes EN 68:1977 English version Hand-held non-electric power tools - Safety requirements - Part 7: Grinders Machines portatives à moteur non électrique - Prescriptions de sécurité - Partie 7: Meuleuses Handgehaltene nicht-elektrisch betriebene Maschinen - Sicherheitsanforderungen - Teil 7: Schleifmaschinen für Schleifkörper This European Standard was approved by CEN on 3 November 2001. CEN members are bound to comply with the CEN/CENELEC Internal 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. 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 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 COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 792-7:2001 E Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- EN 792-7:2001 (E) 2 CONTENTS page Foreword3 0Introduction4 1Scope5 2Normative references5 3Terms and definitions6 3.1General terms and definitions7 3.2Terms and definitions related to grinders7 4List of significant hazards9 5Safety requirements and measures10 5.1Mechanical safety10 5.2Thermal safety13 5.3Noise13 5.4Vibration14 5.5Materials and substances processed, used or exhausted14 5.6Ergonomics14 5.7Safety related measures and means15 6Information for use16 6.1Marking, signs and written warnings16 6.2Instruction for use16 7Verification20 7.1Noise20 7.2Vibration20 7.3Test of deformation of flanges20 7.4Test of guards21 7.5Unintentional start23 7.6Structure of verification of safety requirements24 Annex A (informative) Examples of grinders covered by this standard26 Annex B (informative) Symbols for labels and signs27 Annex C (informative) List of abrasive products for hand-held grinders28 Annex D (normative) Design, material and thickness of guards33 Annex E (informative) Example of calculating procedure of clamping force39 Annex F (informative) Example of flanges42 Annex ZA (informative) Relationship of this European Standard with EC Directives48 Bibliography49 Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- w w w . b z f x w . c o m EN 792-7:2001 (E) 3 Foreword This European Standard has been prepared by Technical Committee CEN/TC 255 “Hand-held non-electric power tools - Safety“, the secretariat of which is held by SIS. 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 2002. This European Standards supersedes EN 68:1977. 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 EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this standard. The “European Committee of Manufacturers of Compressors, Vacuum Pumps and Pneumatic Tools“, PNEUROP, has given substantial contributions to this standard. The standard has been created in close co-operation with CENELEC/TC 61F with the aim of achieving requirements for mechanical safety in the EN 50144 series, which are similar for hand- held electric and non-electric power tools. NOTE Other technical committees in CEN dealing with hand-held power tools have been asked to follow the safety requirements as in EN 792. The annexes to this part of the standard are: Annex A (informative) Examples of grinders covered by this standard Annex B (informative) Symbols for labels and signs Annex C (informative) List of abrasive products for hand-held grinders Annex D (normative) Design, material and thickness of guards Annex E (informative) Example of calculating procedure of clamping force Annex F (informative) Example of flanges Annex ZA (informative) Relationship of this European Standard with EC Directives. 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, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- w w w . b z f x w . c o m EN 792-7:2001 (E) 4 0Introduction This European standard is a type C standard as stated in EN 1070. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this standard. 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 other standards, for machines that have been designed and built according to the provisions of this type C standard. EN 792 consists of a number of independent parts for individual types of hand-held non-electric power tools. Other European Standards deal with safety rules for hand-held power tools used in e. g. the following fields: - agriculture and forestry such as chain saws, hedge-trimmers, brush cutters, grass trimmers; - construction and building such as cutting-off power tools, concrete vibrators; - food industry, such as fowl secateurs, sheep shears. Endeavours have been made to achieve co-ordination with the relevant Technical Committees so that the safety requirements are compatible. This standard is divided in the following Parts: Part 1: Assembly power tools for non-threaded mechanical fasteners (former Part 14) Part 2: Cutting-off and crimping power tools (former Part 15) Part 3: Drills and tappers Part 4: Non-rotary percussive power tools Part 5: Rotary, percussive power drills Part 6: Assembly power tools for threaded fasteners Part 7: Grinders Part 8: Sanders and polishers Part 9: Die grinders Part 10: Compression power tools Part 11: Nibblers and shears Part 12: Small circular, small oscillating and reciprocating saws Part 13: Fastener driving tools Certain Parts of EN 792 cover hand-held non-electric power tools, driven by internal combustion engines powered by gaseous or liquid fuel. In these parts, the safety aspects relating to internal combustion engines are found in a normative annex. The Parts are type C standards and refer to pertinent European Standards of type A and B where such standards are applicable. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- w w w . b z f x w . c o m EN 792-7:2001 (E) 5 1Scope This European Standard applies to hand-held non-electric power tools driven by rotary or linear motors, powered by compressed air or hydraulic fluid and intended to be used by one operator and supported by: - the operator's hand or hands; - a harness; - a suspension, e. g. a balancer. This European Standard applies to hand-held non-electric power tools intended for grinding and cutting-off, with bonded, coated and super abrasive products for use on all kinds of materials. This European Standard lists the significant hazards caused by such power tools and specifies safety requirements valid for different aspects of safety during their foreseeable lifetime. This part of the standard covers power tools used with: - abrasive products with a peripheral operating speed less than or equal to 80 m/s; - cutting-off wheels with a peripheral operating speed less than or equal to100 m/s; - abrasive products with outside nominal diameter less than or equal to 230 mm; - cutting-off wheels with outside nominal diameter less than or equal to 300 mm; - wire brushes. This Part of the standard does not apply to: - die grinders with collets which are treated in EN 792-9; - polishers and sanders which are treated in EN 792-8; - cutting-off machines used for construction, rescue purposes which are driven by an internal combustion engine which are treated in EN 1454. There are no grinders covered by this Part of this European Standard driven by internal combustion engines. Typical abrasive products used together with hand-held grinders are listed in annex C. Special requirements and modifications on a hand-held power tool for the purpose of mounting it in a fixture are not covered by this part. NOTE At the date of publication no grinders driven by internal combustion engines are known. 2Normative references This 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 listed hereafter. For dated references, subsequent amendments to or revisions of any of the publications referred to in this European Standard are valid only when they are incorporated in this standard by amendment or revision. For undated references the latest edition of the publication referred to, applies (including amendments). Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:55:40 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- w w w . b z f x w . c o m EN 792-7:2001 (E) 6 EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology. EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications. EN 563, Safety of machinery - Temperatures of touchable surfaces - Ergonomics data to establish temperature limit values for hot surfaces. CR 1030-1, Hand-arm vibrations - Guidelines for vibration hazards reduction - Part 1: Engineering methods by design of machinery. EN 1127-1, Explosive atmospheres Explosion prevention and protection Part 1: Basic concepts and methodology. EN 10111, Continuously hot-rolled low carbon sheet and strip for cold bending - Technical delivery conditions. EN 10130, Cold rolled low carbon steel flat products for cold forming - Technical delivery conditions. EN 12096, Mechanical vibration - Declaration and verification of vibration emission values. EN