1、BSI Standards PublicationBS EN 12110:2014Tunnelling machines Airlocks Safety requirementsBS EN 12110:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12110:2014. It supersedes BS EN 12110:2002+A1:2008 which is withdrawn.The UK participation in its preparatio
2、n was entrusted to Technical Committee B/513, Construction equipment and plant and site safety.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsi
3、ble for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 73021 4ICS 91.220; 93.060Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Stand
4、ards Policy and Strategy Committee on 31 May 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 12110:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12110 May 2014 ICS 91.220; 93.060 Supersedes EN 12110:2002+A1:2008English Version Tunnelling machines - Air
5、 locks - Safety requirements Machines pour la construction de tunnels - Sas de transfert - Prescriptions de scurit Tunnelbaumaschinen - Druckluftschleusen - Sicherheitstechnische Anforderungen This European Standard was approved by CEN on 6 March 2014. CEN members are bound to comply with the CEN/CE
6、NELEC 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 CEN-CENELEC Management Centre
7、 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 CEN-CENELEC Management Centre has the same status as the o
8、fficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlan
9、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights
10、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12110:2014 EBS EN 12110:2014EN 12110:2014 (E) 2 Contents Page Foreword 3 Introduction . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 List of significant hazards 7 5 Safety requ
11、irements and/or protective measures 10 5.1 General 10 5.2 General requirements 10 5.3 Personnel locks . 12 5.4 Material locks . 17 5.5 Combined locks . 17 5.6 Pressure bulkheads . 18 6 Verification of safety requirements and/or protective measures . 18 7 Information for use 22 7.1 General 22 7.2 Sig
12、ns, signals and warning devices 22 7.3 Instruction handbook 23 7.4 Marking . 24 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 25 Bibliography 26 BS EN 12110:2014EN 12110:2014 (E) 3 Foreword This document (EN 12110:2014)
13、 has been prepared by Technical Committee 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 th
14、e latest by November 2014 and conflicting national standards shall be withdrawn at the latest by November 2014. This document supersedes EN 12110:2002+A1:2008. The following main technical changes have been made compared to EN 12110:2002+A1:2008. a) general revision of the structure of EN 12110; b)
15、revision of fire protection requirements; c) revision of the access dimensions on air locks; d) new structure of requirements for electrical equipment and the emergency provisions for power supply and lighting; e) revision of requirements for oxygen supply. This document has been prepared under a ma
16、ndate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive. For relationship with EU Directive, see informative Annex ZA which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the
17、national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
18、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12110:2014EN 12110:2014 (E) 4 Introduction This document is a type C standard as stated in EN ISO 12100. The machinery and equipment con
19、cerned and the extent to which hazards, hazardous situations and events are covered are indicated 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 this type C standard take precedence over the
20、 provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. BS EN 12110:2014EN 12110:2014 (E) 5 1 Scope This European Standard applies to the design, construction, equipping, marking and testing of air locks as defined in 3.
21、3 including pressure bulkheads as defined in 3.4, which are to be used in tunnelling work. An oxygen breathing system used to provide the breathing supply necessary to conduct a safe decompression is also covered by this standard. This European Standard is not applicable to machinery and equipment w
22、hich is manufactured before the date of publication of this document by CEN. NOTE Air locks can be connected to tunnelling machinery. This standard can help the design of air locks and bulkheads in other compressed air work in construction. This European Standard deals with all significant hazards,
23、hazardous situations and events relevant to such machinery when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This European Standard does not cover the supply of services to the air lock. Vibration, noise and EMC (Electr
24、omagnetic compatibility) hazards are not significant hazards for air locks. This European Standard does not cover the hazards due to the mobility of the machinery. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable f
25、or its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 250:2014, Respiratory equipment Open-circuit self-contained compressed air diving apparatus Requirements, testing, ma
26、rking EN 12021:2014, Respiratory equipment Compressed gases for breathing apparatus EN 12464-1:2011, Light and lighting Lighting of work places Part 1: Indoor work places EN 60204-1:2006, Safety of machinery Electrical equipment of machines Part 1: General requirements (IEC 60204-1:2005, modified) E
27、N 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 61000-6-1:2007, Electromagnetic compatibility (EMC) Part 6-1: Generic standards Immunity for residential, commercial and light-industrial environments (IEC 61000-6-1:2005) EN 61000-6-2:2005, Electromagnetic comp
28、atibility (EMC) Part 6-2: Generic standards Immunity for industrial environments (IEC 61000-6-2:2005) EN 61000-6-3:2007, Electromagnetic compatibility (EMC) Part 6-3: Generic standards Emission standard for residential, commercial and light-industrial environments (IEC 61000-6-3:2006) EN 61000-6-4:2
29、007, Electromagnetic compatibility (EMC) Part 6-4: Generic standards Emission standard for industrial environments (IEC 61000-6-4:2006) EN 61310-1:2008, Safety of machinery Indication, marking and actuation Part 1: Requirements for visual, acoustic and tactile signals (IEC 61310-1:2007) BS EN 12110:
30、2014EN 12110:2014 (E) 6 EN ISO 3411:2007, Earth-moving machinery Physical dimensions of operators and minimum operator space envelope (ISO 3411:2007) EN ISO 5171:2010, Gas welding equipment Pressure gauges used in welding, cutting and allied processes (ISO 5171:2009) EN ISO 12100:2010, Safety of mac
31、hinery General principles for design Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13849-1:2008, Safety of machinery Safety-related parts of control systems Part 1: General principles for design (ISO 13849-1:2006) EN ISO 14113:2013, Gas welding equipment Rubber and plastics hose and hos
32、e assemblies for use with industrial gases up to 450 bar (45 MPa) (ISO 14113:2013) IEC 60364-7-706:2005, Low-voltage electrical installations Part 7-706: Requirements for special installations or locations Conducting locations with restricted movement IEC/TR 60877:1999, Procedures for ensuring the c
33、leanliness of industrial-process measurement and control equipment in oxygen service 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1 compressed air air with a pressure of more than 0,1 bar, above atmospheric
34、 Note 1 to entry: All pressures to be measured above atmospheric pressure. 3.2 working chamber space in which work in compressed air is carried out 3.3 air lock self-contained pressure vessel with one or more compartments that permits passage between areas of different pressure Note 1 to entry: The
35、pressure vessel is equipped with access doors, which can be sealed and the vessel can be pressurized. It includes equipment for its safe operation. 3.3.1 material lock air lock for the passage of material or equipment only 3.3.2 personnel lock air lock for the passage of persons only 3.3.3 combined
36、lock air lock for the passage of persons and material or equipment BS EN 12110:2014EN 12110:2014 (E) 7 3.4 pressure bulkhead structure which separates spaces with different pressure levels as part of an air lock 3.5 maximum working pressure highest pressure to which an airlock may be subjected in no
37、rmal use 3.6 design pressure DP maximum pressure for which the equipment is designed as specified by the manufacturer Note 1 to entry: The design pressure is the maximum allowable pressure as derived from the EU Directive 97/23/EC concerning Pressure Equipment (PED). 3.7 test pressure TP pressure to
38、 which the equipment is tested 3.8 oxygen breathing system plant, pipework and ancillary equipment used to provide oxygen supply necessary for a safe decompression procedure 3.9 breathing unit part of the oxygen breathing system comprising a mask and regulator combination 3.10 main chamber compartme
39、nt of a personnel lock in which decompression is normally carried out 3.11 entrance chamber compartment of a personnel lock which allows passage from atmospheric pressure to the main chamber 3.12 oxygen compatible can safely be used in contact with oxygen 4 List of significant hazards This clause co
40、ntains all the significant hazards, hazardous situations and events, identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk. BS EN 12110:2014EN 12110:2014 (E) 8 Table 1 List of significant hazards Significant Hazards Hazardous
41、 Situation Safety Requirements and/or Measures Reference 4.1 Mechanical hazards: 4.1.1 Impact hazard/Squeezing No sharp edges, bumpers, warning signs, squeezing protection etc. 5.1 5.2.10 5.2.11 7.4 4.1.2 Uncontrolled change of pressure Design and construction of pressure vessels, piping and pressur
42、e housings. Marking and labelling. Control equipment and instrumentation Design and construction of bulkheads 5.2.1 5.2.2 5.2.3 5.2.5 5.3.5 5.3.6.2 5.3.6.3 5.3.9.2 5.4 5.6.1 7.4 4.1.3 Hazards resulting from the suction by differential pressure between the pressurized environment and atmospheric pres
43、sure Mesh grills for inlets of exhaust pipes 5.2.11 4.2 Electrical hazards: 4.2.1 Electrical contact, direct or indirect EN 602041 and IEC 603647-706 5.2.5 4.2.2 External influences on electrical equipment EN 610006-1 to 4 5.2.6 4.3 Thermal hazards: 4.3.1 Burns and scalds, by a possible contact of p
44、ersons, by flames or explosions and also by the radiation of heat sources Flame retardant materials. Fire extinguishing system. Temperature limit for heating system 5.2.4 5.2.4 5.3.6.3 4.3.2 Health-damaging effects by hot or cold work environment Thermometer 5.3.6.2 4.4 Hazards generated by material
45、s and substances processed, used or exhausted by machinery: 4.4.1 Hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes and dusts Fire emergency provisions at the control panel Gas sampling lines/ Oxygen monitoring Ventilation Sufficient breathing units 5.2.4 5.3.6
46、.3, 5.3.9.5 5.3.7 5.3.9.4 4.4.2 Fire or explosion hazards especially under increased pressure Water spray system Emergency relief valve Oxygen compatible materials 5.2.4 5.3.9.2 5.3.9.2 BS EN 12110:2014EN 12110:2014 (E) 9 Significant Hazards Hazardous Situation Safety Requirements and/or Measures Re
47、ference 4.4.3 Use of oxygen Cleaning of oxygen system Gas sampling lines Distribution network Suitable breathing units 5.2.11 5.3.6.3 5.3.9.3 5.3.9.4 4.5 Hazards generated by neglecting ergonomic principles in machine design (mismatch of machinery with human characteristics and abilities): 4.5.1 Unh
48、ealthy postures or excessive efforts Dimensions 5.3.2 5.3.3 4.5.2 Inadequate consideration of human anatomy Dimensions 5.3.2 5.3.4 4.5.3 Inadequate local lighting Interior Illumination acc. to EN 124641 5.3.6.4 4.5.4 Unhealthy insufficient dimensions and upholstery of the seats Dimensions and Insula
49、tion 5.3.3 4.6 Hazards caused by failure of energy supply, breaking down of machinery parts and other functional disorders: 4.6.1 Failure of energy supply (of energy and/or control circuits) Emergency Power Supply Emergency lighting 5.2.7 5.2.7 4.6.2 Errors of fitting Leak test of pressure systems 5.2.11 5.3.9.2 5.3.9.3 4.6.3 Uncontrolled decompression of working chamber or lock Protection against inlet line breaks Doors: Self-sealing/Interlock Pressure indicator 5.3.5, 5.3.8 5.2.10 5.3.6.3 4.6.4 Loss of communication Em
