kSIST FprEN 1804-3:2020

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Maschinen für den Bergbau unter Tage - Sicherheitsanforderungen für hydraulischen Schreitausbau - Teil 1: Ausbaugestelle und allgemeine AnforderungenMachines pour mines souterraines - Exigences de sécurité relatives aux soutènements marchants applicables aux piles - Partie 3 : Systèmes de commande hydrauliques et électro-hydrauliquesMachines for underground mines - Safety requirements for hydraulic powered roof supports - Part 3: Hydraulic and electro hydraulic control systems73.100.10Oprema za gradnjo predorov in podzemnih železnicTunnelling and tubbing equipmentICS:Ta slovenski standard je istoveten z:prEN 1804-3oSIST prEN 1804-3:2019en,fr,de01-april-2019oSIST prEN 1804-3:2019SLOVENSKI

Machines for underground mines æ Safety requirements for hydraulic powered roof supports æ Part

uã Hydraulic and electro hydraulic control systems Machines pour mines souterraines æ Exigences de sécurité relatives aux soutènements marchants applicables aux piles æ Partie

Maschinen für den Bergbau unter Tage æ Sicherheitsanforderungen für hydraulischen Schreitausbau æ Teil

sã Ausbaugestelle und allgemeine Anforderungen This draft European Standard is submitted to CEN members for enquiryä It has been drawn up by the Technical Committee

If this draft becomes a European Standardá CEN members are bounwhich stipulate the conditions for giving this European Standard the status of a national standard without any alterationä

This draft European Standard was established by CEN in three ofer language made by translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

Recipients of this draft are invited to submitá with their commentsá notification of any relevant patent rights of which they are aware and to provide supporting documentationä

Warning ã This document is not a European Standardä It is distributed for review and commentsä It is subject to change without notice and shall not be referred to as a European Standardä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä prEN

prEN 1804-3:2019 (E) 2 Contents Page European foreword ....................................................................................................................................................... 5 Introduction .................................................................................................................................................................... 6 1 Scope .................................................................................................................................................................... 7 2 Normative references .................................................................................................................................... 7 3 Terms and definitions ................................................................................................................................... 8 4 List of significant hazards ......................................................................................................................... 14 5 Safety requirements .................................................................................................................................... 16 5.1 General requirements ................................................................................................................................ 16 5.1.1 General ............................................................................................................................................................. 16 5.1.2 Hazard areas .................................................................................................................................................. 16 5.1.3 Arrangement of the control devices ...................................................................................................... 16 5.1.4 Dead man’s control ...................................................................................................................................... 17 5.1.5 Shut-off devices ............................................................................................................................................. 17 5.1.6 Pressure indicator ....................................................................................................................................... 17 5.1.7 Arrangement of in-shield and inter-shield hose routing ............................................................... 17 5.1.8 Pipe and hose assemblies .......................................................................................................................... 17 5.1.9 Hydraulic fluids............................................................................................................................................. 18 5.1.10 Lifting points .................................................................................................................................................. 18 5.2 Design requirements .................................................................................................................................. 18 5.2.1 Protection against ejected fluids ............................................................................................................ 18 5.2.2 Roof contact advance .................................................................................................................................. 18 5.2.3 Pressure limiting .......................................................................................................................................... 19 5.2.4 Interruption of the operating pressure ............................................................................................... 19 5.2.5 Travel speed ................................................................................................................................................... 19 5.2.6 Actuating forces ............................................................................................................................................ 19 5.2.7 Resistance to back pressure ..................................................................................................................... 19 5.2.8 Adjustable valves ......................................................................................................................................... 19 5.3 Requirements of type A valves ................................................................................................................ 19 5.3.1 General ............................................................................................................................................................. 19 5.3.2 Leaktightness ................................................................................................................................................. 19 5.3.3 Yield pressure ............................................................................................................................................... 19 5.3.4 Working pressure ........................................................................................................................................ 19 5.3.5 Closing pressure ........................................................................................................................................... 19 5.3.6 Pressure pulses ............................................................................................................................................. 19 5.3.7 Impact resistance ......................................................................................................................................... 20 5.3.8 Pressure flow behaviour ........................................................................................................................... 20 5.3.9 Operating reliability.................................................................................................................................... 20 5.3.10 Temperature effects .................................................................................................................................... 20 5.3.11 Resistance to back pressure ..................................................................................................................... 20 5.4 Requirements for type B and C valves .................................................................................................. 20 5.4.1 General ............................................................................................................................................................. 20 5.4.2 Leaktightness ................................................................................................................................................. 20 5.4.3 Resistance to pressure ............................................................................................................................... 20 5.4.4 Switching behaviour ................................................................................................................................... 20 5.4.5 Operating reliability.................................................................................................................................... 20 oSIST prEN 1804-3:2019

prEN 1804-3:2019 (E) 3 5.4.6 Resistance to back pressure ..................................................................................................................... 21 5.5 Requirements for type D valves .............................................................................................................. 21 5.6 Materials .......................................................................................................................................................... 21 5.6.1 Metallic materials ......................................................................................................................................... 21 5.6.2 Light metal ...................................................................................................................................................... 21 5.6.3 Other materials ............................................................................................................................................. 21 5.6.4 Seals ................................................................................................................................................................... 21 5.7 General Electro Hydraulic ......................................................................................................................... 21 5.7.1 Arrangement of in-shield and inter-shield cable routing .............................................................. 21 5.7.2 Electro hydraulic valves ............................................................................................................................. 21 5.7.3 Stroke measurement devices ................................................................................................................... 21 5.7.4 Pressure indicator ........................................................................................................................................ 21 5.7.5 Pressure transducer .................................................................................................................................... 21 5.7.6 Electro hydraulic control unit .................................................................................................................. 22 6 Verification of the safety requirements ............................................................................................... 24 6.1 Type testing .................................................................................................................................................... 24 6.2 Additional tests ............................................................................................................................................. 25 7 User Information........................................................................................................................................... 26 7.1 General requirements ................................................................................................................................. 26 7.2 Technical and application data ................................................................................................................ 26 7.2.1 Introduction.................................................................................................................................................... 26 7.2.2 General description ..................................................................................................................................... 26 7.2.3 Performance data ......................................................................................................................................... 27 7.2.4 Hydraulic data................................................................................................................................................ 27 7.2.5 List of additional drawings and documents ........................................................................................ 27 7.3 Handling, transport and storage ............................................................................................................. 27 7.3.1 Introduction.................................................................................................................................................... 27 7.3.2 Handling and transport .............................................................................................................................. 27 7.3.3 Storage .............................................................................................................................................................. 27 7.4 Installation and commissioning .............................................................................................................. 27 7.4.1 Installation ...................................................................................................................................................... 27 7.4.2 Commisioning ................................................................................................................................................ 28 7.5 Operation ......................................................................................................................................................... 28 7.6 Maintenance ................................................................................................................................................... 28 7.6.1 Introduction.................................................................................................................................................... 28 7.6.2 Technical description .................................................................................................................................. 28 7.6.3 Maintenance instructions .......................................................................................................................... 28 7.6.4 Fault diagnosis and correction ................................................................................................................ 28 7.6.5 Preventive maintenance schedules ....................................................................................................... 29 7.7 Spare parts identification lists ................................................................................................................. 29 7.8 Marking ............................................................................................................................................................ 29 7.9 Residual risks ................................................................................................................................................. 29 Annex A (normative)

Test for verification of the safety requirements .................................................... 30 A.1 Load tests ......................................................................................................................................................... 30 A.1.1 General ............................................................................................................................................................. 30 A.1.2 Lifting points .................................................................................................................................................. 30 A.1.3 Testing of type A valves .............................................................................................................................. 30 A.1.3.1 General ............................................................................................................................................................. 30 A.1.3.2 Leaktightness test ......................................................................................................................................... 30 oSIST prEN 1804-3:2019

prEN 1804-3:2019 (E) 4 A.1.3.3 Testing of the cracking, working and closing pressure at ambient temperature ................. 30 A.1.3.4 Testing of cracking, working and closing pressure of valves with a pressurized volume of gas ................................................................................................................................................. 32 A.1.3.5 Hydraulic pulse pressure test .................................................................................................................. 32 A.1.3.6 Impact test ...................................................................................................................................................... 33 A.1.3.7 Testing of the flow-related pressure behaviour ............................................................................... 34 A.1.3.8 Endurance test .............................................................................................................................................. 34 A.1.3.9 Resistance to back pressure ..................................................................................................................... 35 A.1.4 Testing of type B valves .............................................................................................................................. 35 A.1.4.1 General ............................................................................................................................................................. 35 A.1.4.2 Leaktightness test ........................................................................................................................................ 35 A.1.4.3 Pressure test .................................................................................................................................................. 37 A.1.4.4 Back pressure test ....................................................................................................................................... 37 A.1.4.5 Switching test................................................................................................................................................. 38 A.1.4.6 Endurance test .............................................................................................................................................. 38 A.1.5 Testing of type C valves .............................................................................................................................. 38 A.1.5.1 General ............................................................................................................................................................. 38 A.1.5.2 Leaktightness test ........................................................................................................................................ 38 A.1.5.3 Pressure test .................................................................................................................................................. 38 A.1.5.4 Endurance test .............................................................................................................................................. 38 A.1.5.5 Back pressure test ....................................................................................................................................... 39 A.1.5.6 Switching test................................................................................................................................................. 39 A.1.6 Testing of type D valves ............................................................................................................................. 39 Annex ZA (informative)

Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered ..................................................... 40 Bibliography ................................................................................................................................................................. 41

prEN 1804-3:2019 (E) 5 European foreword This document (prEN 1804-3:2019) has been prepared by Technical Committee CEN/TC 196 “Mining machinery and equipment - Safety”, the secretariat of which is held by DIN. This document is currently submitted to the CEN Enquiry. This document will supersede EN 1804-3:2006+A1:2010. 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 relationship with EU Directive(s), see informative Annex ZA, which is (are) an integral part of this document. The main differences between this document and EN 1804-3:2006+A1:2010 are as follows: a) Normative references (updated); b) Terms and definitions (revised/modified/enhanced); c) List of significant hazards (revised/enhanced); d) Requirements for automatic hydraulic functions (deleted); e) Requirements for in- and inter-shield hose routing (added); f) Requirements for pipe and hose assemblies (updated); g) Requirements for type “A” valves (modified); h) Requirements for electro hydraulic control systems (added); i) List of verification tests (updated/enhanced); j) Figures and pictures (revised/added).

prEN 1804-3:2019 (E) 6 Introduction This document is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document. This document is of relevance, in particular, for the following stakeholder groups representing the market players with regard to machinery safety: — machine manufacturers (small, medium and large enterprises); — health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.). Others can be affected by the level of machinery safety achieved with the means of the document by the above-mentioned stakeholder groups: — machine users/employers (small, medium and large enterprises); — machine users/employees (e.g. trade unions, organizations for people with special needs); — service providers, e.g. for maintenance (small, medium and large enterprises); — consumers (in the case of machinery intended for use by consumers). The above-mentioned stakeholder groups have been given the possibility to participate at the drafting process of this document. The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are covered are indicated in the Scope of this document. When requirements of this type-C standard are different from those which are stated in type-A or type-B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been designed and built according to the requirements of this type-C standard. The extent to which hazards are covered is indicated in the scope of this document. While preparing this document, it was assumed that: — only trained and competent persons operate the machine; — components without specific requirements are: a) designed in accordance with the usual engineering practice and calculation code; b) of sound mechanical construction; c) free of defects; — components are kept in good working condition / order; — a negotiation took place between the user and the manufacturer concerning the use of the machinery. oSIST prEN 1804-3:2019

prEN 1804-3:2019 (E) 7 1 Scope This document specifies the safety requirements for hydraulic and electro hydraulic control devices, including hydraulic valves and their control elements, valve combinations, control systems, pipes and hose assemblies, fittings, shut-off devices, measuring devices, filters, built-in pressure limiting and check valves in legs and rams and water spraying and dust suppression valves, as well emergency stop, start warning, locking- and control unit when used as specified by the manufacturer or his authorized representative. Excluded are pressure generators, and internal valves of legs and rams (e.g. leg bottom valves, see EN 1804-2). NOTE Some components are dealt with in other parts of this standard. This document applies to hydraulic and electro hydraulic control devices at ambient temperatures from –10 °C to 60 °C. This document identifies and takes into account: — possible hazards which may be caused by the operation of hydraulic and electro hydraulic control devices; — areas and operating conditions which may create such hazards; — hazardous situations which may cause injury or may be damaging to health; — hazards which may be caused by firedamp and/or combustible dusts. This document describes methods for the reduction of these hazards. A list of significant hazards covered appears in Clause 4. This document does not specify any additional requirements for: — use in particularly corrosive environments; — hazards occurring during construction, transportation, decommissioning; — earthquakes. This document is applicable to all hydraulic and electro hydraulic control unit placed on the market for the first time and which are manufactured after the date on which this standard was published. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 853:2015, Rubber hoses and hose assemblies — Wire braid reinforced hydraulic type — Specification EN 854:2015, Rubber hoses and hose assemblies — Textile reinforced hydraulic type — Specification EN 856:2015, Rubber hoses and hose assemblies — Rubber-covered spiral wire reinforced hydraulic type — Specification EN 857:2015, Rubber hoses and hose assemblies — Wire braid reinforced compact type for hydraulic applications — Specification EN 981, Safety of machinery — System of auditory and visual danger and information signals oSIST prEN 1804-3:2019

prEN 1804-3:2019 (E) 8 EN 1804-1, Machines for underground mines — Safety requirements for hydraulic powered roof supports — Part 1: Support units and general requirements EN 1804-2, Machines for underground mines — Safety requirements for hydraulic powered roof supports — Part 2: Power set legs and rams EN ISO 3949:2018, Plastic hoses and hose assemblies — Textile-reinforced types for hydraulic applications — Specifcation (ISO 3949:2018) EN ISO 80079-36:2016, Explosive atmospheres — Part 36: Non-electrical equipment for explosive atmospheres — Basic method and requirements (ISO 80079-36:2016) EN 61508 series, Functional safety of electrical/electronic/programmable electronic safety-related systems EN ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their components (ISO 4413:2010) EN ISO 12100:2010, Safety of machinery — Basic conceots, general principles for design – Part 2: Technical principles (ISO 12100:2010) EN ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design (ISO 13849-1:2015) EN ISO 13849-2:2012, Safety of machinery — Safety-related parts of control systems — Part 2: Validation (ISO 13849-2:2012) EN ISO 13850:2015, Safety of machinery — Emergency stop function — Principles for design (ISO 13850:2015) ISO 6805:19