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1、BRITISH STANDARD BS EN 12110:2002 Tunnelling machines Air locks Safety requirements The European Standard EN 12110:2002 has the status of a British Standard ICS 91.220; 93.060 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12110:200
2、2 This British Standard, having been prepared under the direction of the Building and Civil Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 12 November 2002 BSI 12 November 2002 ISBN 0 580 40723 3 National foreword
3、 This British Standard is the official English language version of EN 12110:2002. The UK participation in its preparation was entrusted by Technical Committee B/513, Construction equipment and plant, and site safety, to Subcommittee B/513/2, Drilling, piling and tunnelling, safety, which has the res
4、ponsibility to: A list of organizations represented on this subcommittee 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 entitle
5、d “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 w
6、ith 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 intern
7、ational 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 19 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments
8、 issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12110 October 2002 ICS 91.220; 93.060 English version Tunnelling machines - Air locks - Safe
9、ty requirements Tunneliers - Sas de transfert - Prescriptions de scuritTunnelbaumaschinen - Druckluftschleusen - Sicherheitstechnische Anforderungen This European Standard was approved by CEN on 2 September 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
10、te 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
11、 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
12、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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMU
13、NG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12110:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI E
14、N 12110:2002 (E) 2 Contents page Foreword4 Introduction.5 1Scope 5 1.1Description of the machine(s) 5 2Normative references 5 3Terms and definitions6 4List of significant hazards.7 4.1Mechanical hazards.7 4.2Electrical hazards.7 4.3Thermal hazards.7 4.4Noise hazards.7 4.5Hazards generated by materia
15、ls and substances processed, used or exhausted by machinery, for example:7 4.6Hazards generated by neglecting ergonomic principles in machine design (mismatch of machinery with human characteristics and abilities) caused e.g. by:.7 4.7Hazards caused by failure of energy supply, breaking down of mach
16、inery parts and other functional disorders, e.g.:.8 4.8Hazards caused by (temporarily) missing and/or incorrectly positioned safety related measures/means, e.g.: 8 5Safety requirements and/or protective measures8 5.1General requirements8 5.1.1Calculation8 5.1.2Pressure relief valve9 5.1.3Electrical
17、equipment9 5.1.4Control panel9 5.1.5Communication9 5.1.6Doors, closing and sealing.9 5.1.7Fire protection9 5.1.8Handling of heavy items9 5.2Personnel locks9 5.2.1Number of chambers.9 5.2.2Dimensions.10 5.2.3Seats10 5.2.4Door openings, dimensions10 5.2.5Doors, closure10 5.2.6Minimum equipment for per
18、sonnel locks10 5.2.7Other requirements11 5.2.8Ventilation.12 5.2.9Protection against breaks in flexible lines12 5.2.10Oxygen breathing (including all gas mixtures with more than 25 % oxygen).12 5.3Material locks .13 5.4Combined locks .14 5.5Pressure bulkheads.14 5.5.1Sealing 14 5.5.2Service ports 14
19、 6Verification of safety requirements and/or protective measures .14 7Information for use 15 7.1General15 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12110:2002 (E) 3 7.2Signals and warning devices15 7.3Instruction handbook15 7.4Marki
20、ng.16 Annex ZA (informative) Relationship of this document with EC Directives.18 Bibliography19 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12110:2002 (E) 4 Foreword This document (EN 12110:2002) has been prepared by Technical Committ
21、ee CEN/TC 151 “Construction equipment and building material machines - Safety“, the secretariat of which is held by DIN. 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 April 2003, and conflicting
22、 national standards shall be withdrawn at the latest by April 2003. This document 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 Directives, see informa
23、tive annex ZA, which is an integral part of this document. 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, Ic
24、eland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12110:2002 (E) 5 Introduction This document is a type C standard a
25、s stated in EN 1070:1998. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indi- cated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of
26、this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. 1 Scope 1.1 Description of the machine(s) This European Standard applies for the design, construction, equipping, marki
27、ng and testing of air locks and pressure bulkheads, which are to be used in tunnelling work. The oxygen breathing installation used to provide the breathing supply necessary to conduct a safe decompression is also covered by this standard. 1.2This standard deals with all significant hazards, hazardo
28、us situations and events relevant to air locks and pressure bulkheads, when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4). This standard specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards. 1.
29、3This document is not applicable to machinery which is manufactured before the date of publication of this document by CEN. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the approp
30、riate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the public
31、ation referred to applies (including amendments). EN 140:1998, Respiratory protective devices - Half masks and quarter masks - Requirements, testing, marking. EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design Part 2: Technical principles(identical with ISO/DIS 12100
32、2:2000) Revision of EN 292-2:1991 and EN 292-2:1991/A1:1995). EN 1070:1998, Safety of machinery Terminology. EN 60204-1:1997, Safety of machinery - Electrical equipment of machines Part 1: General requirements (IEC 60204-1:1997). EN 60529:1991, Degrees of protection provided by enclosures (IP Code)
33、(IEC 60529:1989). EN 61310-1:1995, Safety of machinery - Indication, marking and actuation Part 1: Requirements for visual, audi- tory and tactile signals (IEC 61310-1:1995). Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12110:2002 (E)
34、6 EN ISO 11202:1995, Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specific positions Survey method in situ (ISO 11202:1995). 3 Terms and definitions For the purposes of this European Standard, the terms and definition
35、s given in EN 1070:1998 together with the following apply. 3.1 compressed air air with a pressure of more than 0,1 bar, above atmospheric. All pressures to be measured above atmospheric pressure 3.2 pressure chamber pressure vessel which is intended for accommodating persons above atmospheric pressu
36、re 3.3 working chamber space in which work in compressed air is carried out 3.4 air lock pressure vessel with one or more chambers with access doors, which can be sealed and pressurised with com- pressed air 3.5 material lock air lock through which only material or equipment goes into or out of the
37、working chamber 3.6 personnel lock air lock through which only persons go into or out of the working chamber 3.7 combined lock air lock through which persons, material or equipment go into or out of the working chamber 3.8 pressure bulkhead equipment which separates spaces with different pressure le
38、vels 3.9 maximum working pressure highest pressure to which a pressure chamber may be subjected in normal use 3.10 design pressure pressure used for calculation not including the safety-factor 3.11 oxygen breathing installation plant and ancillary equipment used to provide oxygen supply necessary fo
39、r a safe decompression procedure Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12110:2002 (E) 7 4 List of significant hazards This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt wi
40、th in this standard, identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk. 4.1 Mechanical hazards 4.1.1Impact hazard, see:5.2.4, 5.2.5 4.1.2Ejection of parts (of machinery and processed material/workpieces) , see:5.1.1 4.1.3
41、Uncontrolled change of pressure, see:5.1.1, 5.1.2, 5.2.6, 5.2.9 4.1.4Hazards resulting from the suction by differential pressure between the pressurised environment and atmospheric pressure, see:5.2.7 4.2 Electrical hazards 4.2.1Electrical contact, direct or indirect, see:5.1.3 4.2.2External influen
42、ces on electrical equipment, see:5.1.3 4.3 Thermal hazards 4.3.1Burns and scalds, by a possible contact of persons, by flames or explosions and also by the radiation of heat sources, see:5.1.3, 5.1.7, 5.2.7, 5.2.10.5, 7.2 4.3.2Health-damaging effects by hot or cold work environment, see:5.2.6.1, 5.2
43、.7, 5.4 4.4 Noise hazards 4.4.1Hearing losses (deafness), other physiological disorders (e.g. loss of balance, loss of awareness, etc.), see:5.2.7, 5.4 4.4.2Interference with speech communication, acoustic signals, etc., see:5.2.7, 5.4, 7.2 4.5 Hazards generated by materials and substances processed
44、, used or exhausted by machinery, for example: 4.5.1Hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes and dusts, see:5.1.7, 5.2.6.2, 5.2.8, 5.2.10.1 4.5.2Fire or explosion hazards especially under increased air pressure, see:5.1.3, 5.1.4, 5.1.7, 5.2.7, 5.2.10.1
45、, 5.2.10.2, 5.2.10.3 4.5.3Use of oxygen, see clause: 5.2.10 4.6 Hazards generated by neglecting ergonomic principles in machine design (mismatch of machinery with human characteristics and abilities) caused e.g. by: 4.6.1Unhealthy postures or excessive efforts, see:5.1.8, 5.2.2, 5.2.3 4.6.2Inadequat
46、e consideration of human anatomy, see:5.2.2, 5.2.3, 5.2.4 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:51:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12110:2002 (E) 8 4.6.3Inadequate local lighting, see:5.1.4, 5.2.7 4.7 Hazards caused by failure of energy supply, breaking down of m
47、achinery parts and other functional disorders, e.g.: 4.7.1Failure of energy supply (of energy and/or control circuits), see:5.1.4, 5.2.7, 7.2 4.7.2Errors of fitting, see:5.2.5, 5.5.1, 7.2 4.7.3Uncontrolled decompression of working chamber or lock, see:5.1.6, 5.2.5, 5.2.6.1, 5.2.9, 5.2.10.6 4.7.4Loss
48、 of communication, see:5.1.5 4.8 Hazards caused by (temporarily) missing and/or incorrectly positioned safety related measures/means, e.g.: 4.8.1All kinds of safety related (protection) devices, see:5.1.3 5.1.5, 5.2.6.1, 5.2.6.2, 5.3, 5.5.2 4.8.2Safety signs, see:5.3, 7.1, 7.2 4.8.3All kinds of info
49、rmation or warning devices, see:5.2.6.1, 7 4.8.4Means of access for emergency personnel into the confined pressurised part of the machine, see:5.2.1, 5.2.2, 5.2.4, 5.2.5 4.8.5Emergency devices, in particular means of evacuation of a casualty from the confined pressurised part of the machine, see:5.2.1, 5.2.2 4.8.6Essential equipment and accessories for safe adjusting and/or maintaining see:5.2.6.1, 5.3, 5.4 4.8.7Equipment for evacuating gases, etc, see:5.2.6.2, 5.2.8, 5.2.10.3, 5.2.