SIST EN 12110:2003+A1:2008
(Main)Tunnelling machines - Air locks - Safety requirements
Tunnelling machines - Air locks - Safety requirements
This European Standard applies for the design, construction, equipping, marking 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.
1.2 This standard deals with all significant hazards, hazardous 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.
1.3 This document is not applicable to machinery which is manufactured before the date of publication of this document by CEN.
Tunnelbaumaschinen - Druckluftschleusen - Sicherheitstechnische Anforderungen
1.1 Maschinenbeschreibung
Diese Europäische Norm gilt für Form, Aufbau, Ausstattung, Kennzeichnung und Prüfung von Druckluftschleusen und Druckwänden, die bei Tunnelbauarbeiten verwendet werden.
Die zur Versorgung mit Luft eingesetzte Sauerstoffanlage, die für die sichere Durchführung einer Druckentlastung erforderlich ist, fällt ebenfalls in den Anwendungsbereich dieser Norm.
1.2 Diese Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungs-ereignisse, die auf Druckluftschleusen und Druckwände zutreffen, wenn sie bestimmungsgemäß und entsprechend den vorhersehbaren Bedingungen des Herstellers verwendet werden (siehe Abschnitt 4). Diese Norm beschreibt die entsprechenden Maßnahmen zur Beseitigung oder Verminderung der Risiken, die von den signifikanten Gefährdungen ausgehen.
1.3 Dieses Dokument gilt nicht für Maschinen, die hergestellt wurden, bevor CEN dieses Dokument veröffentlichte.
Machines pour la construction de tunnels - Sas de transfert - Prescriptions de sécurité
1.1 Description de la (des) machine(s)
La présente norme porte sur la conception, la fabrication, la fourniture, le marquage et les essais des sas de transfert
et de parois de cloison de pression destinés aux travaux de soutènement de tunnels.
Le respirateur à oxygène utilisé pour procurer la quantité d'air nécessaire pour effectuer la décompression en toute
sécurité est également couvert par cette norme.
1.2 La présente norme traite tous les phénomènes dangereux significatifs relatifs aux sas de transfert et les parois
de cloison de pression, lorsqu'ils sont utilisés normalement et dans les conditions prévues par le fabricant
(voir article 4). La présente norme spécifie les mesures techniques appropriées pour éliminer ou réduire les risques
dus aux phénomènes dangereux significatifs.
1.3 La présente Norme européenne s'applique en particulier à des machines fabriquées après la date
d'approbation de la norme par le CEN.
Stroji za gradnjo predorov - Zračne zapore - Varnostne zahteve
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tunnelbaumaschinen - Druckluftschleusen - Sicherheitstechnische AnforderungenMachines pour la construction de tunnels - Sas de transfert - Prescriptions de sécuritéTunnelling machines - Air locks - Safety requirements93.060Gradnja predorovTunnel construction91.220Gradbena opremaConstruction equipmentICS:Ta slovenski standard je istoveten z:EN 12110:2002+A1:2008SIST EN 12110:2003+A1:2008en01-november-2008SIST EN 12110:2003+A1:2008SLOVENSKI
STANDARD
SIST EN 12110:2003+A1:2008
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12110:2002+A1
August 2008 ICS 91.220; 93.060 Supersedes EN 12110:2002English Version
Tunnelling machines - Air locks - Safety requirements
Machines pour la construction de tunnels - Sas de transfert - Prescriptions de sécurité
Tunnelbaumaschinen - Druckluftschleusen - Sicherheitstechnische Anforderungen This European Standard was approved by CEN on 2 September 2002 and includes Amendment 1 approved by CEN on 9 July 2008.
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 CEN 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 CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, 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 © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12110:2002+A1:2008: ESIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 2 Contents page Foreword.4 Introduction.5 1 Scope.5 1.1 Description of the machine(s).5 2 Normative references.5 3 Terms and definitions.6 4 List of significant hazards.7 4.1 Mechanical hazards.7 4.2 Electrical hazards.7 4.3 Thermal hazards.7 4.4 Noise hazards.7 4.5 Hazards generated by materials and substances processed, used or exhausted by machinery, for example:.7 4.6 Hazards generated by neglecting ergonomic principles in machine design (mismatch of machinery with human characteristics and abilities) caused e.g. by:.7 4.7 Hazards caused by failure of energy supply, breaking down of machinery parts and other functional disorders, e.g.:.8 4.8 Hazards caused by (temporarily) missing and/or incorrectly positioned safety related measures/means, e.g.:.8 5 Safety requirements and/or protective measures.8 5.1 General requirements.8 5.1.1 Calculation.8 5.1.2 Pressure relief valve.9 5.1.3 Electrical equipment.9 5.1.4 Control panel.9 5.1.5 Communication.9 5.1.6 Doors, closing and sealing.9 5.1.7 Fire protection.9 5.1.8 Handling of heavy items.9 5.2 Personnel locks.9 5.2.1 Number of chambers.9 5.2.2 Dimensions.10 5.2.3 Seats.10 5.2.4 Door openings, dimensions.10 5.2.5 Doors, closure.10 5.2.6 Minimum equipment for personnel locks.11 5.2.7 Other requirements.11 5.2.8 Ventilation.12 5.2.9 Protection against breaks in flexible lines.12 5.2.10 Oxygen breathing (including all gas mixtures with more than 25 % oxygen).12 5.3 Material locks.13 5.4 Combined locks.14 5.5 Pressure bulkheads.14 5.5.1 Sealing.14 5.5.2 Service ports.14 6 Verification of safety requirements and/or protective measures.14 7 Information for use.15 7.1 General.15 SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 3 7.2 Signals and warning devices.15 7.3 Instruction handbook.15 7.4 Marking.16 Annex ZA (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC".18 Annex ZB (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC".19 Bibliography.20
SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 4 Foreword This document (EN 12110:2002+A1:2008) 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 the latest by February 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-07-09. This document supersedes EN 12110:2002. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". 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 EU Directive(s), see informative Annexes ZA and ZB, which are integral parts 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, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 5 Introduction This document is a type C standard as stated in EN 1070:1998. The machinery concerned 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 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, marking 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. 1.2 This standard deals with all significant hazards, hazardous 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. 1.3 This 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 appropriate 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 publication 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 –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) (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). SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 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 definitions 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 pressure 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 compressed air 3.5 material lock air lock through which only material or equipment goes into or out of the 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 levels 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 for a safe decompression procedure SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 7 4 List of significant hazards This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt with 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 4.1.1 Impact hazard, see: 5.2.4, 5.2.5 4.1.2 Ejection of parts (of machinery and processed material/workpieces) , see: 5.1.1 4.1.3 Uncontrolled change of pressure, see: 5.1.1, 5.1.2, 5.2.6, 5.2.9 4.1.4 Hazards resulting from the suction by differential pressure between the
pressurised environment and atmospheric pressure, see:
5.2.7 4.2 Electrical hazards 4.2.1 Electrical contact, direct or indirect, see: 5.1.3 4.2.2 External influences on electrical equipment, see: 5.1.3 4.3 Thermal hazards 4.3.1 Burns 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 4.3.2 Health-damaging effects by hot or cold work environment, see: 5.2.6.1, 5.2.7, 5.4 4.4 Noise hazards 4.4.1 Hearing losses (deafness), other physiological disorders
(e.g. loss of balance, loss of awareness, etc.), see:
5.2.7, 5.4 4.4.2 Interference with speech communication, acoustic signals, etc., see: 5.2.7, 5.4, 7.2 4.5 Hazards generated by materials and substances processed, used or exhausted by machinery, for example: 4.5.1 Hazards 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 4.5.2 Fire 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, 5.2.10.2, 5.2.10.3 4.5.3 Use 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: 4.6.1 Unhealthy postures or excessive efforts, see: 5.1.8, 5.2.2, 5.2.3 4.6.2 Inadequate consideration of human anatomy, see: 5.2.2, 5.2.3, 5.2.4 SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 8 4.6.3 Inadequate local lighting, see: 5.1.4, 5.2.7 4.7 Hazards caused by failure of energy supply, breaking down of machinery parts and other functional disorders, e.g.: 4.7.1 Failure of energy supply (of energy and/or control circuits), see: 5.1.4, 5.2.7, 7.2 4.7.2 Errors of fitting, see: 5.2.5, 5.5.1, 7.2 4.7.3 Uncontrolled decompression of working chamber or lock, see: 5.1.6, 5.2.5, 5.2.6.1,
5.2.9, 5.2.10.6 4.7.4 Loss of communication, see: 5.1.5 4.8 Hazards caused by (temporarily) missing and/or incorrectly positioned safety related measures/means, e.g.: 4.8.1 All 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 4.8.2 Safety signs, see: 5.3, 7.1, 7.2 4.8.3 All kinds of information or warning devices, see: 5.2.6.1, 7 4.8.4 Means 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 4.8.5 Emergency devices, in particular means of evacuation of a casualty from
the confined pressurised part of the machine, see: 5.2.1, 5.2.2
4.8.6 Essential equipment and accessories for safe adjusting and/or maintaining
see: 5.2.6.1, 5.3, 5.4 4.8.7 Equipment for evacuating gases, etc, see: 5.2.6.2, 5.2.8, 5.2.10.3,
5.2.10.6, 5.4 5 Safety requirements and/or protective measures Machinery shall comply with the safety requirements and/or protective measures of this clause. 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 relevant but not significant, which are not dealt with by this document (e.g. sharp edges). 5.1 General requirements 5.1.1 Calculation The design pressure shall be 1,1 times the maximum working pressure. Where bulkheads cannot be tested the design pressure shall be 1,5 times the maximum working pressure. The calculation shall be carried out according to the finite elements method. The calculations shall be part of the technical documentation. SIST EN 12110:2003+A1:2008
EN 12110:2002+A1:2008 (E) 9 5.1.2 Pressure relief valve Each compartment shall be equipped with a pressure relief valve set at 1,1 times the maximum working pressure and capable of passing the whole air supply to the air lock at that pressure. Once activated the valve shall be able to fully close when pressure is lowered back to the working pressure. 5.1.3 Electrical equipment Electrical equipment in air locks shall comply with EN 60204-1:1997. For the application of EN 60204-1 the manufacturer shall carry out an adequate risk assessment for the requirements thereof where choice is necessary. NOTE This specific risk assessment is part of the general risk assessment relating to the hazards not covered by this type C standard. It shall be suitable for humid and wet spaces and be protected from dust deposits and spraying water to a minimum class of IP 55 of EN 60529:1991, clause 4. Electrical equipment shall be designed to minimise the risk of fire and toxic fumes and shall withstand pressure changes to the maximum working pressure of the air lock.
5.1.4 Control panel Control equipment and indicating instruments which are outside the air lock shall be assembled in a control panel. They shall be easily readable and so designed, constructed, arranged and marked that function and switching direction can be clearly recognised, in compliance with EN 61310-1:1995. They shall be illuminated with a nominal intensity of at least 100 lux. Emergency lighting shall be available
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