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09/30198043 DC : 0

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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BS EN 1127-1 - EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY

Available format(s)

Hardcopy , PDF

Superseded date

31-08-2011

Superseded by

BS EN 1127-1:2011

Language(s)

English

€23.37
Excluding VAT

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Risk assessment
  4.1 General
  4.2 Identification of explosion hazards
       4.2.1 General
       4.2.2 Combustion properties
       4.2.3 Explosion behaviour
       4.2.4 Likelihood of occurrence of a hazardous
              explosive atmosphere
  4.3 Identification of ignition hazards
       4.3.1 General
       4.3.2 Ignition properties
       4.3.3 Likelihood of occurrence of potential
              ignition sources
  4.4 Estimation of the possible effects of an explosion
5 Possible ignition sources
  5.1 Hot surfaces
  5.2 Flames and hot gases (including hot particles)
  5.3 Mechanically generated sparks
  5.4 Electrical apparatus
  5.5 Stray electric currents, cathodic corrosion
       protection
  5.6 Static electricity
  5.7 Lightning
  5.8 Radio frequency (RF) electromagnetic waves from
       10[4] Hz to 3 x 10[12] Hz
  5.9 Electromagnetic waves from 3 x 10[11] Hz to 3' x
       10[15] Hz
  5.10 Ionizing radiation
  5.11 Ultrasonics
  5.12 Adiabatic compression and shock waves
  5.13 Exothermic reactions, including self-ignition of
       dusts
6 Risk reduction
  6.1 Fundamental principles
  6.2 Avoidance or reduction of the amount of explosive
       atmosphere
       6.2.1 General
       6.2.2 Process parameters
       6.2.3 Design and construction of equipment, protective
              systems and components
  6.3 Classification of hazardous areas
  6.4 Requirements for the design and construction of
       equipment, protective systems and components by
       avoidance of effective ignition sources
       6.4.1 General
       6.4.2 Hot surfaces
       6.4.3 Flames and hot gases
       6.4.4 Mechanically generated sparks
       6.4.5 Electrical apparatus
       6.4.6 Stray electric currents and cathodic corrosion
              protection
       6.4.7 Static electricity
       6.4.8 Lightning
       6.4.9 Radio frequency (RF) electromagnetic waves from
              10[4] Hz to 3 x 10[12] Hz
       6.4.10 Electromagnetic waves from 3 x 10[11] Hz
              to 3 x 10[15] Hz
       6.4.11 Ionizing radiation
       6.4.12 Ultrasonics
       6.4.13 Adiabatic compression and shock waves
       6.4.14 Exothermic reactions, including self-ignition
              of dusts
  6.5 Requirements for the design and construction of
       equipment, protective systems and components to reduce
       the explosion effects
       6.5.1 General
       6.5.2 Explosion-resistant design
       6.5.3 Explosion relief
       6.5.4 Explosion suppression
       6.5.5 Prevention of explosion propagation (explosion
              decoupling)
  6.6 Provisions for emergency measures
  6.7 Principles of measuring and control systems for
       explosion prevention and protection
7 Information for use
  7.1 General
  7.2 Information on equipment, protective systems and
       components
  7.3 Information for commissioning, maintenance and repair
       to prevent explosion
  7.4 Qualifications and training
Annex A (informative) - Information for the use of tools
        in potentially explosive atmospheres
Annex B (informative) - Significant technical changes between
        this document and the previous edition of this
        European Standard
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 94/9/EC
Annex ZB (informative) - Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 2006/42/EC
Bibliography

BS EN 1127-1

Committee
FSH/23
DocumentType
Draft
Pages
45
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

CEN Guide 414:2017 Safety of machinery - Rules for the drafting and presentation of safety standards
IEC 60079-1:2014 RLV Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
EN 50053-2 : 1989 REQUIREMENTS FOR THE SELECTION, INSTALLATION AND USE OF ELECTROSTATIC SPRAYING EQUIPMENT FOR FLAMMABLE MATERIALS - HAND-HELD ELECTROSTATIC POWDER SPRAY GUNS WITH AN ENERGY LIMIT OF 5 MJ AND THEIR ASSOCIATED EQUIPMENT
EN 14756:2006 Determination of the limiting oxygen concentration (LOC) for flammable gases and vapours
EN 14034-2:2006+A1:2011 Determination of explosion characteristics of dust clouds - Part 2: Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds
EN 50053-3 : 1989 REQUIREMENTS FOR THE SELECTION, INSTALLATION AND USE OF ELECTROSTATIC SPRAYING EQUIPMENT FOR FLAMMABLE MATERIALS - HAND-HELD ELECTROSTATIC FLOCK SPRAY GUNS WITH AN ENERGY LIMIT OF 0.24 MJ OR 5MJ AND THEIR ASSOCIATED APPARATUS
EN 13445-5 : 2014 COR 2017 UNFIRED PRESSURE VESSELS - PART 5: INSPECTION AND TESTING
EN 60079-1:2014 Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
EN 13445-6 : 2014 COR 2017 UNFIRED PRESSURE VESSELS - PART 6: REQUIREMENTS FOR THE DESIGN AND FABRICATION OF PRESSURE VESSELS AND PRESSURE PARTS CONSTRUCTED FROM SPHEROIDAL GRAPHITE CAST IRON
IEC TR 60079-20:1996 Electrical apparatus for explosive gas atmospheres - Part 20: Data for flammable gases and vapours, relating to the use of electrical apparatus
EN 13980:2002 Potentially explosive atmospheres - Application of quality systems
EN 15188:2007 Determination of the spontaneous ignition behaviour of dust accumulations
EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
EN 14373:2005 Explosion suppression systems
EN 60079-15:2010 Explosive atmospheres - Part 15: Equipment protection by type of protection "n"
EN 50053-1 : 1987 REQUIREMENTS FOR THE SELECTION, INSTALLATION AND USE OF ELECTROSTATIC SPRAYING EQUIPMENT FOR FLAMMABLE MATERIALS - HAND-HELD ELECTROSTATIC PAINT SPRAY GUNS WITH AN ENERGY LIMIT OF 0.24 MJ AND THEIR ASSOCIATED APPARATUS
EN ISO 14121-1:2007 Safety of machinery - Risk assessment - Part 1: Principles (ISO 14121-1:2007)
EN 13463-1:2009 Non-electrical equipment for use in potentially explosive atmospheres - Part 1: Basic method and requirements
EN 12874 : 2001 FLAME ARRESTERS - PERFORMANCE REQUIREMENTS, TEST METHODS AND LIMITS FOR USE
EN 61779-4:2000 Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating a volume fraction up to 100 % lower explosive limit
EN 14034-3:2006+A1:2011 Determination of explosion characteristics of dust clouds - Part 3: Determination of the lower explosion limit LEL of dust clouds
IEC 60079-18:2014 RLV Explosive atmospheres - Part 18: Equipment protection by encapsulation “m”
EN 14797:2006 Explosion venting devices
EN 13673-2:2005 Determination of maximum explosion pressure and the maximum rate of pressure rise of gases and vapours - Part 2: Determination of the maximum rate of explosion pressure rise
EN 13237:2012 Potentially explosive atmospheres - Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
EN 50050:2006 Electrical apparatus for potentially explosive atmospheres - Electrostatic hand-held spraying equipment
EN 50017:1998 Electrical apparatus for potentially explosive atmospheres - Powder filling "q"
EN 14491:2012 Dust explosion venting protective systems
EN 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
EN 1839:2017 Determination of the explosion limits and the limiting oxygen concentration(LOC) for flammable gases and vapours
IEC 61779-2:1998 Electrical apparatus for the detection and measurement of flammable gases - Part 2: Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air
EN 13463-6:2005 Non-electrical equipment for use in potentially explosive atmospheres - Part 6: Protection by control of ignition source 'b'
EN 60079-28:2015 Explosive atmospheres - Part 28: Protection of equipment and transmission systems using optical radiation
ISO 14121-1:2007 Safety of machinery Risk assessment Part 1: Principles
IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
EN 13445-8 : 2014 COR 2017 UNFIRED PRESSURE VESSELS - PART 8: ADDITIONAL REQUIREMENTS FOR PRESSURE VESSELS OF ALUMINIUM AND ALUMINIUM ALLOYS
EN 60079-11:2012 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
EN 13445-4 : 2014 COR 2017 UNFIRED PRESSURE VESSELS - PART 4: FABRICATION
IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
EN 62305-3:2011 Protection against lightning - Part 3: Physical damage to structures and life hazard
EN 13463-8:2003 Non-electrical equipment for potentially explosive atmospheres - Part 8: Protection by liquid immersion 'k'
EN 61779-5:2000 Electrical apparatus for the detection and measurement of flammable gases - Part 5: Performance requirements for group II apparatus indicating a volume fraction up to 100 % gas
EN 1127-2:2014 Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining
IEC 61779-4:1998 Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group II apparatus indicating up to 100% lower explosive limit
EN 15198:2007 Methodology for the risk assessment of non-electrical equipment and components for intended use in potentially explosive atmospheres
EN 60079-25:2010/AC:2013 EXPLOSIVE ATMOSPHERES - PART 25: INTRINSICALLY SAFE ELECTRICAL SYSTEMS (IEC 60079-25:2010)
EN 13673-1:2003 Determination of the maximum explosion pressure and the maximum rate of pressure rise of gases and vapours - Part 1: Determination of the maximum explosion pressure
IEC 60079-25:2010 Explosive atmospheres - Part 25: Intrinsically safe electrical systems
EN 13463-2:2004 Non-electrical equipment for use in potentially explosive atmospheres - Part 2: Protection by flow restricting enclosure 'fr'
IEC 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
EN 14034-1:2004+A1:2011 Determination of explosion characteristics of dust clouds - Part 1: Determination of the maximum explosion pressure pmax of dust clouds
EN 60079-10:2003 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
ISO 12100-2:2003 Safety of machinery Basic concepts, general principles for design Part 2: Technical principles
EN 50059:1990 Specification for electrostatic hand-held spraying equipment for non-flammable material for painting and finishing
ISO 8421-1:1987 Fire protection — Vocabulary — Part 1: General terms and phenomena of fire
EN 62305-2:2012 Protection against lightning - Part 2: Risk management
IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
IEC 61779-3:1998 Electrical apparatus for the detection and measurement of flammable gases - Part 3: Performance requirements for group I apparatus indicating a volume fraction up to 100 % methane in air
EN 61779-1 : 2000 AMD 11 2004 ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
EN 50281-2-1 : 98 COR 99 Electrical apparatus for use in the presence of combustible dust - Part 2-1: Test methods - Methods for determining the minimum ignition temperatures of dust
EN 61779-2:2000 Electrical apparatus for the detection and measurement of flammable gases - Part 2: Performance requirements for group I apparatus indicating a volume fraction up to 5 % methane in air
EN 60079-14:2014/AC:2016 EXPLOSIVE ATMOSPHERES - PART 14: ELECTRICAL INSTALLATIONS DESIGN, SELECTION AND ERECTION (IEC 60079-14:2013/COR1:2016)
ISO 12100-1:2003 Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology
EN ISO 13849-1:2015 Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015)
IEC 61779-5:1998 Electrical apparatus for the detection and measurement of flammable gases - Part 5: Performance requirements for group II apparatus indicating a volume fraction up to 100 % gas
EN 61779-3:2000 Electrical apparatus for the detection and measurement of flammable gases - Part 3: Performance requirements for group I apparatus indicating a volume fraction up to 100 % methane in air
IEC 62305-2:2010 Protection against lightning - Part 2: Risk management
EN 14522:2005 Determination of the auto ignition temperature of gases and vapours
EN 13463-5:2011 Non-electrical equipment intended for use in potentially explosive atmospheres - Part 5: Protection by constructional safety 'c'
EN 13463-3:2005 Non-electrical equipment for use in potentially explosive atmospheres - Part 3: Protection by flameproof enclosure 'd'
EN 14034-4:2004+A1:2011 Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds
CEN/TR 15281:2006 Guidance on Inerting for the Prevention of Explosions
ISO 13849-1:2015 Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design
IEC 61779-1:1998 Electrical apparatus for the detection and measurement of flammable gases - Part 1: General requirements and test methods
IEC 62305-3:2010 Protection against lightning - Part 3: Physical damage to structures and life hazard
IEC 60079-15:2010 Explosive atmospheres - Part 15: Equipment protection by type of protection "n"
EN 13821:2002 Potentially explosive atmospheres - Explosion prevention and protection - Determination of minimum ignition energy of dust/air mixtures
EN 14994:2007 Gas explosion venting protective systems
CLC/TR 50404:2003 Electrostatics - Code of practice for the avoidance of hazards due to static electricity
EN 60079-2:2014/AC:2015 EXPLOSIVE ATMOSPHERES - PART 2: EQUIPMENT PROTECTION BY PRESSURIZED ENCLOSURE 'P' (IEC 60079-2:2014)

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