EN 14591-1-2004 en Explosion prevention and protection in underground mines - Protective systems - Part 1 2-bar explosion proof ventilation structure (Incorporating Corrigendum Jan.pdf

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1、BRITISH STANDARDBS EN 14591-1:2004Incorporating Corrigendum No. 1Explosion prevention and protection in underground mines Protective systems Part 1: 2-bar explosion proof ventilation structureThe European Standard EN 14591-1:2004 has the status of a British StandardICS 13.230; 73.100.20g49g50g3g38g5

2、0g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14591-1:2004This British Standard was published under the authority of the Standards Policy and Strategy Co

3、mmittee on 27 June 2005 BSI 2006ISBN 0 580 46127 0National forewordThis British Standard is the official English language version of EN 14591-1:2004, including corrigendum January 2006.The UK participation in its preparation was entrusted to Technical Committee FSH/23, Fire precautions in industrial

4、 and chemical plant, which has the responsibility to:A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Cat

5、alogue 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 co

6、rrect 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 in

7、formed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover.The BSI copyright notice displayed in this document indicates when the documen

8、t was last issued.Amendments issued since publicationAmd. No. Date Comments16252 Corrigendum No. 128 April 2006 Changes to Annex ZAEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14591-1September 2004ICS 13.230; 73.100.20 Including corrigendum January 2006English versionExplosion prevention and pr

9、otection in underground mines -Protective systems - Part 1: 2-bar explosion proof ventilationstructureProtection contre lexplosion dans les mines souterraines -Systmes de protection - Partie 1 : Sas darage rsistant 2 barExplosionsschutz in untertgigen Bergwerken -Schutzsysteme - Teil 1: 2-bar-Wetter

10、bauwerkThis European Standard was approved by CEN on 30 July 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical r

11、eferences concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member i

12、nto its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

13、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of e

14、xploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14591-1:2004: EEN 14591-1:2004 (E) 2Contents PageForeword .41 Scope52 Normative references.53 Terms and definitions 54 Symbols and abbreviations .65 Safety requirements .65.1 General65.2 Air shutter frame

15、s.75.2.1 Materials and components.75.2.2 Air shutter frame length and rib thickness75.2.3 Connection to strata.95.3 Air doors.95.3.1 General95.3.2 2-bar travel way door95.3.3 2-bar haulage way door95.3.4 Control system .96 Marking .9Annex A (normative) Representation of the verifiably tested 2-bar t

16、ravel way door with an inside width of a = 700 mm and a vertical clearance of h0= 1 800 mm.10Annex B (normative) Representation of the verifiably tested 2-bar haulage way door with an inside width of a = 1 600 mm and a vertical clearance h0= 2 000 mm .12Annex ZA (informative) Relationship between th

17、is European Standard and the Essential Requirements of EU Directive 94/9/EC.14Bibliography15Figures Figure 1 Schematic representation of a 2-bar explosion proof ventilation structure. 7Figure 2 Schematic representation of rib thicknesses R1between the haulage way door and the travel way door and oth

18、er fixtures 8Figure 3 Schematic representation of rib thicknesses R2between one fixture and another and between the fixtures and wall or floor of the roadway. 8Figure A.1 2-bar travel way door 10Figure B.1 2-bar haulage way door 12Tables Table 1 Symbols and abbreviations . 6Table 2 Dimensions for th

19、e rib thickness of a 2-bar explosion proof ventilation structure as a function of roadway cross-section. 9EN 14591-1:2004 (E) 3Table A.1 Parts list for a 2-bar travel way door . 11Table B.1 Parts list for 2-bar haulage way door 13EN 14591-1:2004 (E) 4Foreword This document EN 14591-1:2004 has been p

20、repared by Technical Committee CEN/TC 305 “Potentially explosive atmospheres - Explosion prevention and protection”, 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

21、latest by March 2005, and conflicting national standards shall be withdrawn at the latest by March 2005. 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 EU Directive(s). For relati

22、onship with EU Directives, see informative Annex ZA, which is an integral part of this document. This European Standard consists of the following parts: EN 14591-1, Explosion prevention and protection in underground mines Protective systems Part 1: 2-bar explosion proof ventilation structure.prEN 14

23、591-2, Explosion prevention and protection in underground mines Protective systems Part 2: Water trough barriers. prEN 14591-3, Explosion prevention and protection in underground mines Protective systems Part 3: Water troughs for explosion barriers. According to the CEN/CENELEC Internal Regulations,

24、 the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P

25、oland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. .EN 14591-1:2004 (E) 51 Scope This document applies to air shutter frames and air doors for ventilation structures which are to remain functional after the passage of explosions with overpressures of up to 2 bar.

26、 Ventilation structures are protective systems to provide the ventilation flow after the occurrence of an explosion such that the effects of an explosion on the ventilation system can be limited and adequate possibilities remain for escape and rescue. NOTE These structures may be used when ventilati

27、on studies indicate that the air flow in the work place would be reduced considerably providing no safe escape for workers in cases where the structure is destroyed. Explosion proof ventilation structures will be individually evaluated for directional stability of ventilation flows and in order to e

28、nsure adequate ventilation flows. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) a

29、pplies. EN 10025, Hot rolled products of non-alloy structural steels Technical delivery conditions. EN 13463-1, Non-electrical equipment for potentially explosive atmospheres Part 1: Basic method and requirements.EN 13478, Safety of machinery Fire prevention and protection. ISO 2768-1, General toler

30、ances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 air shutter frameshutter frame that shuts off a working section except for those openings for

31、 haulage way, travel way, conveyor, cables and pipes as well as openings necessary to ensure the required air flow according to existing pressure conditions 3.2 pressure-relief air doorair door with leaves opening and closing in opposite directions NOTE The forces are balanced by design measures, e.

32、g. connecting rod or turning chain so that only the friction and readjustment forces of the opening and closing device remain to be overcome. 3.3 non-pressure-relief air doorair door that normally opens against the air flow direction with mechanical devices for opening and closing EN 14591-1:2004 (E

33、) 64 Symbols and abbreviations Table 1 Symbols and abbreviations Abbrevi-ation Dimension Unit lD 2 barMinimum length of air shutter frame millimetre awMaximum roadway width/height at ventilation structure millimetre bs Tensile bending strength of material used Newton per square millimetre R1, R2Rib

34、thickness millimetre T Thickness millimetre A Inside width millimetre hoVertical clearance millimetre L Angle steel - U U-steel -Fl Flat-bar steel - Bl Plate -Vkt Square steel bar - TB T-steel -Ex Explosion -5 Safety requirements 5.1 General A ventilation structure for explosion overpressures of up

35、to 2 bar (2-bar explosion proof ventilation structure) comprises at least one air shutter frame according to 5.2. When air doors have to be provided in these air regulators, the former shall be designed, for transport and haulage purposes, as folding leaf doors according to 5.3.3 which are set again

36、st the direction of an explosion and as a pressure-relief folding door according to 5.3.2 for the travel way (see Figure 1 a). Where it is not possible to determine clearly the direction of the explosion, the air doors shall be provided on both sides of the air shutter frame (see Figure 1 b). EN 145

37、91-1:2004 (E) 7Key1 Normal ventilation structure 2 2-bar explosion proof ventilation structure 3 Air lock Figure 1 Schematic representation of a 2-bar explosion proof ventilation structure 5.2 Air shutter frames 5.2.1 Materials and components The materials and components used shall be non-combustibl

38、e and approved for use below ground. Only hydraulically-bonded materials having a tensile bending strength of 3.5 N/mm2(7-day value) shall be used. 5.2.2 Air shutter frame length and rib thickness The minimum length of the air shutter frame is obtained from equation (1): bSal=5,295,0wbar2D(1) The va

39、lues for rib thickness R1between the haulage way door and the travel way door and other fixtures (see Figure 2), and for rib thickness R2between one fixture and another and between the fixtures and the side-wall or floor of the roadway (see Figure 3), are given in Table 2. EN 14591-1:2004 (E) 8Dimen

40、sions in millimetres Key1 Compression insert Figure 2 Schematic representation of rib thicknesses R1between the haulage way door and the travel way door and other fixtures Dimensions in millimetres Key1 Compression insert Figure 3 Schematic representation of rib thicknesses R2between one fixture and

41、 another and between the fixtures and wall or floor of the roadway EN 14591-1:2004 (E) 9Table 2 Dimensions for the rib thickness of a 2-bar explosion proof ventilation structure as a function of roadway cross-section Roadway cross-section Rib thickness m2R1mm R2mm 20 600 300 20 1 000 500 5.2.3 Conne

42、ction to strata The air shutter frame shall be set into the strata to an all-round depth of at least 250 mm so as to create a solid abutment. Yielding components (compression inserts) may be used between the strata and the air shutter frame in order to absorb strata movements. The thickness of the c

43、ompression insert shall be allowed for in addition to the 250 mm-deep contact surface. 5.3 Air doors 5.3.1 General The air doors shall resist an overpressure of 2 bar and shall remain operative. 5.3.2 2-bar travel way door The 2-bar travel way door shall be constructed as a pressure-relief air door.

44、 Both door leaves shall allow simultaneous opening up to an angle of 90 from the door frame. Sealing bars shall be made of hardly combustible and antistatic materials (see EN 13478 and EN 13463-1). The construction represented in Annex A as an example has been verifiably tested. Diverging dimensions

45、 shall be proven for their intended use with a proven static calculation. 5.3.3 2-bar haulage way door The 2-bar haulage way door shall be constructed as a non-pressure-relief air door. Both door leaves shall allow simultaneous opening up to an angle of 90 from the door frame. The construction repre

46、sented in Annex B as an example has been verifiably tested. Diverging dimensions shall be proven for their intended use with a proven static calculation. 5.3.4 Control system The control lines and connections shall be protected from the potential effects of an explosion. Actuating contacts shall be

47、designed and installed in such a way that they cannot be triggered by the pressure wave of an explosion. 6 Marking The 2-bar travel way door and 2-bar haulage way door shall be permanently marked with the year of manufacture and manufacturers stamp according to Directive 94/9/EC. EN 14591-1:2004 (E)

48、 10Annex A (normative)Representation of the verifiably tested 2-bar travel way door with an inside width of a = 700 mm and a vertical clearance of h0= 1 800 mm Dimensions in millimetres General tolerances to: ISO 2768 c Figure A.1 2-bar travel way door EN 14591-1:2004 (E) 11Table A.1 Parts list for

49、a 2-bar travel way door Item No. No. of parts Designation Material/comments a1 1 Door frame S 235 JR 2 1 Door leaf, left S 235 JR 3 1 Door leaf, right S 235 JR 4 1 Window Polycarbonate 5 1 Connecting rod S 235 JR 6 1 Linkage E 295 7 1 Closing device S 235 JR 8 2 Lower bearing S 235 JR 9 2 Upper bearing S 235 JR 10 4 Attachment plate S 235 JR 11 8 Clamping plate S 235 JR aMaterial in accordance with EN 10025, except for Item No. 4EN 14591-1:2004 (E) 12Annex B(normative)Representation of t