EN 1908-2015 en Safety requirements of cableway installations designed to carry persons - Tensioning devices《架空索道设备的安全要求 张紧装置》.pdf

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1、BSI Standards PublicationBS EN 1908:2015Safety requirements forcableway installationsdesigned to carry persons Tensioning devicesBS EN 1908:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1908:2015. Itsupersedes BS EN 1908:2004 which is withdrawn.The UK par

2、ticipation in its preparation was entrusted to TechnicalCommittee MCE/20, Aerial ropeways.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for

3、 its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 81713 7ICS 45.100Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and St

4、rategy Committee on 31 July 2015.Amendments issued since publicationDate Text affectedBS EN 1908:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1908 July 2015 ICS 45.100 Supersedes EN 1908:2004English Version Safety requirements of cableway installations designed to carry persons - Tension

5、ing devices Prescriptions de scurit pour les installations cbles transportant des personnes - Dispositifs de mise en tensionSicherheitsanforderungen an Seilbahnen fr den Personenverkehr - Spanneinrichtungen This European Standard was approved by CEN on 18 November 2014. CEN members are bound to comp

6、ly 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-CENELEC

7、 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-CENELEC Management Centre has the sa

8、me status as the official 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

9、, Malta, Netherlands, 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 20

10、15 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1908:2015 EBS EN 1908:2015EN 1908:2015 (E) Contents Page Foreword 4 1 Scope 6 2 Normative references 6 4 General requirements 7 4.1 Application of this standard .7 4.2 Safety princ

11、iples 7 4.2.1 General 7 4.2.2 Hazard scenarios .7 4.2.3 Safety measures 7 5 General requirements for tensioning devices 8 5.1 Purpose of tensioning devices .8 5.2 Travel 8 5.2.1 Dimensioning .8 5.2.2 Free movement 8 5.2.3 Limits 8 5.2.4 Display 9 5.3 End fixings 9 5.3.1 General 9 5.3.2 Socket end fi

12、xings .9 5.3.3 Anchor drum 9 5.3.4 Dimensioning 10 5.3.5 Other rope end fixings . 10 5.4 Guides 10 5.4.1 Counterweights . 10 5.4.2 Tension carriages . 10 5.5 Unloading devices for tensioning devices . 10 6 Requirements for counterweight tensioning devices . 10 6.1 Tension force deflection systems .

13、10 6.1.1 Tension sheaves . 10 6.1.2 Roller chains and deflection sheaves for track ropes 11 6.1.3 Other deflection devices 11 6.2 Counterweight travel areas 11 6.3 Counterweights . 11 6.4 Damping devices 12 7 General requirements for hydraulic installations 12 8 Requirements for hydraulic tensioning

14、 systems 13 8.1 Constructional devices 13 8.2 Maintaining and monitoring limiting values of nominal tension . 14 9 Requirements for fixed tensioning devices . 14 9.1 Testing the rope tension 14 9.2 Adjustment of rope tension . 14 9.3 Dimensioning the connection parts 14 10 Requirements for other ten

15、sioning devices 15 11 Requirements for ski-tow tensioning devices . 15 11.1 General . 15 11.2 Specific requirements 15 2 BS EN 1908:2015EN 1908:2015 (E) 12 Materials and permissible stresses . 16 13 Accident prevention and protection of workers 16 Annex ZA (informative) Relationship between this Eur

16、opean Standard and the essential requirements of the EU Directive 2000/9/EC relating to cableway installations designed to carry persons . 17 3 BS EN 1908:2015EN 1908:2015 (E) Foreword This document (EN 1908:2015) has been prepared by Technical Committee CEN/TC 242 “Safety requirements for passenger

17、 transportation by rope”, 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 January 2016, and any conflicting national standards shall be withdrawn at the

18、latest by January 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN and/or CENELEC shall not be responsible for identifying any or all such patent rights. This document supersedes EN 1908:2004. This document has been prepar

19、ed under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2000/9/EG. For the relationship with EU Directive 2000/9/EG, see informative Annex ZA, which is an integral part of this document. The main changes

20、with respect to EN 1908:2004 are listed below: Clause 1 has been supplemented with regard to the safety of workers. Terms and definitions have been removed in Clause 3, as the reference to EN 1907 is sufficient. 5.2.1.1 c) and 5.2.1.1. d) have been deleted. A reference to EN 12930 has been added. Th

21、e position of the stops in 5.2.3.5 has been stated more precisely. 5.3.3.1 has been reviewed in terms of content and structure. 8.2.3 has been shortened. Reference has been made to EN 12930 and EN 12929-1 for technical requirements. 8.2.4 of EN 1908:2004 has been deleted. The Annex ZA has been revis

22、ed. This European Standard is part of a series of standards relating to safety requirements on cableway installations designed for passenger transport. This series of standards consists of the following standards: EN 1907, relating to Terminology EN 12929 (all parts), relating to General requirement

23、s EN 12930, relating to Calculations EN 12927 (all parts), relating to Cables EN 1908 relating to Tensioning devices 4 BS EN 1908:2015EN 1908:2015 (E) EN 13223, relating to Drive systems and other mechanical equipment EN 13796 (all parts), relating to Carriers EN 13243, relating to Electrical equipm

24、ent other than for drive systems EN 13107, relating to Structures EN 1709, relating to Pre-commissioning inspection, maintenance, operational inspections and checks EN 1909, relating to Recovery and evacuation EN 12397, relating to Operation EN 12408, relating to Quality assurance Together these for

25、m a series of standards regarding design, manufacture, erection, maintenance and operation of all installations for cableway installations designed for passenger transport. In respect of ski-tows, the drafting of this document has been guided by the works of the International Organisation for Transp

26、ortation by Rope (OITAF). In accordance with CEN-CENELEC Internal Regulations, the national standards institutes of the countries listed below are required to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany

27、, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, FYR Macedonia, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, and the United Kingdom. 5 BS EN 1908:2015EN 1908:2015 (E) 1 Scope This European Standard specif

28、ies the safety requirements applicable on the tensioning devices for cableway installations designed to carry persons. This document is applicable to the various types of cableway installation and takes into account their environment. This document applies to the design, manufacture, installation, m

29、aintenance and operation of rope tensioning devices and anchorages of cableway installations designed to carry persons. It also includes requirements relating to accident prevention and to the protection of workers irrespective of the application of national regulations. National regulations of a co

30、nstruction or regulatory nature or those which serve to protect specific groups of persons remain unaffected. This European Standard does not apply to cableway installations intended for the transport of goods nor to lifts. 2 Normative references The following documents, in whole or in part, are nor

31、matively referenced in this document and are indispensable for 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 1709, Safety requirements for cableway installations desi

32、gned to carry persons Precommissioning inspection, maintenance and operational inspection and checks EN 1907, Safety requirements for cableway installations designed to carry persons Terminology EN 1909, Safety requirements for cableway installations designed to carry persons Recovery and evacuation

33、 EN 12397, Safety requirements for cableway installations designed to carry persons Operation EN 12408, Safety requirements for cableway installations designed to carry persons Quality control EN 12927 (all parts), Safety requirements for cableway installations designed to carry persons Ropes EN 129

34、29 (all parts), Safety requirements for cableway installations designed to carry persons General requirements EN 12930, Safety requirements for cableway installations designed to carry persons Calculations EN 13107, Safety requirements for cableway installations designed to carry persons Civil engin

35、eering works EN 13223, Safety requirements for cableway installations designed to carry persons Drive systems and other mechanical equipment EN 13243, Safety requirements for cableway installations designed to carry persons Electrical equipment other than for drive systems EN 13796 (all parts), Safe

36、ty requirements for cableway installations designed to carry persons Carriers EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their components (ISO 4413) 6 BS EN 1908:2015EN 1908:2015 (E) 3 Terms and definitions For the purposes of this document, the terms

37、and definitions given in EN 1907 and the following apply. 3.1 travel the distance available for the moving part of a tensioning device to absorb variations in the length and sag of a rope under tension 3.2 fixed tensioning device tensioning device for ropes whose tension cannot be adjusted during op

38、eration 4 General requirements 4.1 Application of this standard The requirements of this document apply to all cableway installations along with the requirements of standards EN 1709, EN 1909, EN 12397, EN 12408, EN 12927 (all parts), EN 12929 (all parts), EN 12930, EN 13107, EN 13223, EN 13243, and

39、 EN 13796 (all parts). 4.2 Safety principles 4.2.1 General The safety principles set out in EN 12929-1 apply. In addition, the following hazard scenarios and safety measures relative to the scope of this document are to be taken into consideration. 4.2.2 Hazard scenarios The following events may lea

40、d to hazardous situations which may be avoided or limited by the safety requirements of this document: 1) exceeding permissible rope tension forces and rope lengths; 2) exceeding permissible pressure limits in a hydraulic tensioning device; 3) affecting the free movement of ropes; 4) jamming, wedgin

41、g or incorrect positioning of the moving parts of a tensioning device; 5) deterioration or failure of the components of a tensioning device due to wear, corrosion or fatigue; 6) failure of components in a tensioning device as a result of incorrect dimensioning; 7) hazards which a tensioning device c

42、an present for persons in access and work areas; 8) foreseeable misconduct of personnel (passengers, operating personnel, third parties). 4.2.3 Safety measures The following safety measures shall be taken to eliminate the hazard scenarios listed under 4.2.2: ensure that rope tensions are maintained

43、within permissible limits; 7 BS EN 1908:2015EN 1908:2015 (E) prevent or avert the failure of safety-related mechanical and hydraulic components as well as force and pressure measurement systems; prevent and detect the malfunction of tensioning devices; protect persons against the risk of falling or

44、of contact with moving parts of tensioning devices; prevent non-permissible load conditions in the event of a tensioning device failure. 5 General requirements for tensioning devices 5.1 Purpose of tensioning devices Tensioning devices shall maintain the tension in a rope within pre-established perm

45、issible limits. 5.2 Travel 5.2.1 Dimensioning 5.2.1.1 The travel of a tensioning device shall be calculated in accordance with the requirements of EN 12930. The following shall be taken into consideration in the calculations: a) the variation in length of the ropes to be tensioned at a temperature d

46、ifference of 60 C, unless the climatic conditions at the site of the installation require a greater temperature difference to be considered; b) a permanent rope elongation of 0,5 in the case of track ropes and 1,5 for carrying-hauling ropes and haul ropes, provided no precise technical Statements ha

47、ve been provided by the rope manufacturer. The available travel shall enable a renewal of a splice or the installation of new rope end fixings. 5.2.1.2 If the position of a counterweight or a hydraulic tensioning device is adjustable, the travel of the counterweight or cylinder stroke may be calcula

48、ted assuming a temperature difference of 30 C, and the length required for renewing a splice or for installing new end fixings need not be taken into account. The adjustment device shall be able to accommodate at least the travel required by 5.2.1.1 a) to b). For other adjustable tensioning devices,

49、 this provision may be applied as appropriate. 5.2.2 Free movement Free movement of a tensioning device shall be assured in all permissible operating conditions, in particular with regard to the effects of bad weather. 5.2.3 Limits 5.2.3.1 Travel shall be limited by means of mechanical stops; 5.2.3.2 Under all normal operating conditions, tensioning devices shall not reach the mechanical stops; 5.2.3.3 The operating limit positions of all travel shall be monitored; The triggering of a travel lim