Urządzenia i podzespoły przeznaczone do stosowania w przestrzeniach zagrożonych wybuchem w podziemnych wyrobiskach zakładów górniczych. PN-EN 1710+A1:2008 wersja angielska (Warszawa : Polski Komitet Normalizacyjny, 2008)
Określono wymagania dotyczące projektowania sprzętu i komponentów stosowanych jako indywidualne urządzenia lub części maszyn w podziemnych wyrobiskach zakładów górniczych zagrożonych wybuchem metanu i/lub pyłu węglowego. Dodano załącznik informacyjny opisujący relację między wymaganiami normy a zasadniczymi wymaganiami dyrektywy 2006/42/WE
Contents Page European foreword 3 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2014/34/EU 4 Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC 6 Annex ZC (informative) Significant technical changes between this document and the previous edition of this European Standard 7 CONTENTS FOREWORD 5 INTRODUCTION 7 1 Scope 9 2 Normative references 9 3 Terms, definitions and abbreviated terms 10 4 Requirements for equipment (machines) and components 14 4.1 General 14 4.2 Ignition hazard assessment 15 4.2.1 Formal analysis 15 4.2.2 Assessment for equipment-group I, EPL Mb 15 4.2.3 Establishing the maximum surface temperature 15 4.2.4 Dust deposits and other material in the gap of moving parts 15 4.2.5 Ignition hazard assessment report 16 4.2.6 Ignition sources 16 4.3 Non-electrical equipment and components 16 4.4 Electrical equipment and components 16 4.4.1 General 16 4.4.2 Electrical equipment protection 17 4.4.3 Over-current protection 17 4.4.4 Earth-fault protection 18 4.4.5 Mechanical protection of live parts 19 4.4.6 Electric cables that are part of the equipment 19 5 Additional requirements for specific equipment and components 20 5.1 Cutting and stripping equipment 20 5.1.1 General 20 5.1.2 Machines with cutting picks 20 5.1.3 Stripping machines 21 5.2 Rope haulages for level and inclined transport 21 5.3 Fans 21 5.3.1 Ventilating fans for use in underground parts of mine 21 5.3.2 Other fans 23 5.4 Internal combustion engines 23 5.5 Air compressors 24 5.6 Drilling equipment and components 24 5.7 Brakes 25 5.7.1 Brakes used only for stopping in emergency 25 5.7.2 Service brakes (including friction brakes and fluid based retarders) 25 5.7.3 Parking brakes 25 5.8 Traction batteries, starter batteries and vehicle lighting batteries 25 5.9 Optical fibres used on machines and electromagnetic radiation from components on machines 26 5.9.1 External pipes/optical fibres 26 5.9.2 Radio-frequency radiation from equipment 26 5.10 Gas monitoring systems 26 6 Fire protection 27 6.1 General 27 6.2 Non-metallic materials 27 6.3 Hydraulic and pneumatic equipment 27 6.4 Requirements for cable-reeled equipment 29 6.4.1 General 29 6.4.2 Special requirements 29 6.5 Fire prevention on electric cables that are part of the machine 29 6.6 Conveyor belting 29 7 Information for use 30 7.1 Signals and warning notices 30 7.2 Instructions 30 7.2.1 Information on use 30 7.2.2 Information on maintenance and repair 30 8 Marking 30 Annex A (informative) Example of an ignition hazard assessment for a conveyor belt intended for use in a coal mine 32 A.1 General 32 A.2 EPL and intended use of the equipment 32 A.3 Construction and description of the equipment 32 A.4 Assessment 33 Annex B (informative) Example of an ignition hazard assessment for a shearer loader intended for use in a potentially explosive atmosphere of a coal mine 36 B.1 General 36 B.2 EPL and intended use of equipment 36 B.3 Construction/description of the equipment with regard to ignition protection 36 B.4 Ignition control and monitoring system 37 B.5 Compliance with the basic methodology and requirements in ISO 80079-36 37 B.6 Ignition hazard assessment of the electrical parts of the equipment 38 B.7 Ignition hazard assessment of non-electrical ignition sources 38 B.8 Equipment marking 38 Annex C (normative) Ignition sources 42 C.1 Hot surfaces 42 C.2 Flames and hot gases (including hot particles) 42 C.3 Mechanically generated sparks 43 C.4 Electrical equipment 43 C.5 Stray electric currents 43 C.6 Static electricity 44 C.7 Lightning 44 C.8 Radio frequency (RF) electromagnetic waves from 104 Hz to 3 × 1012 Hz (high frequency) 44 C.9 Electromagnetic waves from 3 × 1011 Hz to 3 × 1015 Hz 45 C.10 Ionizing radiation 45 C.11 Ultrasonics 45 C.12 Adiabatic compression and shock waves 45 C.13 Exothermic reactions, including self-ignition of dusts 46 Annex D (informative) Guidance on potential risks for converter-fed motors 47 Annex E (normative) Tests for surface protective coating for group I hand tools of EPL Mb 48 E.1 Incendive impact tests in explosive mixture 48 E.1.1Verification of ignition of the raw light alloy material 48 E.1.2 Estimation of protective coating efficiency 48 E.1.3 Evaluation of results 49 E.2 Adhesion test of the protective coating 49 Bibliography 51 Figure B.1 – Layout and construction of the coal face shearer loader 37 Figure E.1 – Rig for impact ignition test 50 Table 1 – Combination of materials 23 Table 2 – Limit values for hydraulic fluids 28 Table A.1 – Example of an ignition hazard assessment for a mining conveyor, EPL Mb (1 of 2) 33 Table B.1 – Example of an ignition hazard assessment for a shearer loader, EPL Mb (1 of 3) 39.
Norma wycofana 25.01.2010 r i zastąpiona przez PN-EN 1710+A1:2010 wersja polska
Norma w jęz. ang.
Zastępuje PN-EN 1710+A1:2010 wersja polska, PN-EN 1710+A1:2010/AC:2011 wersja polska
Keywords: urządzenia przeciwwybuchowe; kopalnie; Normy; Zagrożenie wybuchowe; Urządzenia