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PD CLC/TR 60079-32-1:2015

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Explosive atmospheres Electrostatic hazards, guidance
Available format(s)

Hardcopy , PDF

Superseded date

01-25-2019

Language(s)

English

Published date

05-31-2015

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Nomenclature
5 General
6 Static electricity in solid materials
7 Static electricity in liquids
8 Static electricity in gases
9 Static electricity in powders
10 Static electricity when handling explosives and
   electro-explosive devices
11 Static electricity on people
12 Electrostatic shock
13 Earthing and bonding
Annex A (informative) - Fundamentals of static electricity
Annex B (informative) - Electrostatic discharges in specific
        situations
Annex C (informative) - Flammability properties of substances
Annex D (informative) - Classification of hazardous areas
Annex E (informative) - Classification of equipment protection level
Annex F (informative) - Flow chart for a systematic electrostatic
        evaluation
Annex G (informative) - Tests
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Provides guidance about the equipment, product and process properties necessary to avoid ignition and electrostatic shock hazards arising from static electricity as well as the operational requirements needed to ensure safe use of the equipment, product or process.

This part of IEC60079 gives guidance about the equipment, product and process properties necessary to avoid ignition and electrostatic shock hazards arising from static electricity as well as the operational requirements needed to ensure safe use of the equipment, product or process. It can be used in a risk assessment of electrostatic hazards or for the preparation of product family or dedicated product standards for electrical or non-electrical machines or equipment. The hazards associated with static electricity in industrial processes and environments that most commonly give problems are considered. These processes include the handling of solids, liquids, powders, gases, sprays and explosives. In each case, the source and nature of the electrostatic hazard are identified and specific recommendations are given for dealing with them. The purpose of this document is to provide standard recommendations for the control of static electricity, such as earthing of conductors, reduction of charging and restriction of chargeable areas of insulators. In some cases static electricity plays an integral part of a process, e.g. electrostatic coating, but often it is an unwelcome side effect and it is with the latter that this guidance is concerned. If the standard recommendations given in this document are fulfilled it can be expected that the risk of hazardous electrostatic discharges in an explosive atmosphere is at an acceptably low level. If the requirements of this document cannot be fulfilled, alternative approaches can be applied under the condition that at least the same level of safety is achieved. Basic information about the generation of undesirable static electricity in solids, liquids, gases, explosives, and also on people, together with descriptions of how the charges generated cause ignitions or electrostatic shocks, is given in the annexes and in IEC/TR61340‑1 . This Technical Specification is not applicable to the hazards of static electricity relating to lightning or to damage to electronic components. This Technical Specification is not intended to supersede standards that cover specific products and industrial situations.

Committee
EXL/31
DevelopmentNote
Renumbers & supersedes BS PD IEC/TS 60079-32-1. 2015 version incorporates corrigendum to BS PD IEC/TS 60079-32-1. Supersedes BS PD CLC/TR 50404. (06/2015)
DocumentType
Standard
Pages
180
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
CLC/TR 60079-32-1:2015 Identical

EEMUA 186 : 2016 A PRACTITIONER'S HANDBOOK FOR POTENTIALLY EXPLOSIVE ATMOSPHERES
EI Model Code of Safe Practice Part 16:2017 MODEL CODE OF SAFE PRACTICE - PART 16: GUIDANCE ON TANK CLEANING
NFPA 77:2024 Recommended Practice on Static Electricity

IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies
NFPA 484 : 2015 COMBUSTIBLE METALS
BS 7506-2:1996 Methods for measurement in electrostatics Test methods
EN ISO 8330:2014 Rubber and plastics hoses and hose assemblies - Vocabulary (ISO 8330:2014)
EN 61340-4-5:2004 Electrostatics - Part 4-5: Standard test methods for specific applications - Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person
EN ISO 21178:2013 Light conveyor belts - Determination of electrical resistances (ISO 21178:2013)
EN 61340-4-3:2001 Electrostatics - Part 4-3: Standard test methods for specific applications - Footwear
DIN 51412-1:2005-06 Testing of petroleum products - Determination of electrical conductivity - Part 1: Laboratory method
EN 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
ISO 21179:2013 Light conveyor belts — Determination of the electrostatic field generated by a running light conveyor belt
ISO 9563:2015 Belt drives Electrical conductivity of antistatic endless synchronous belts Characteristics and test method
ISO 21183-1:2005 Light conveyor belts Part 1: Principal characteristics and applications
89/686/EEC : 1989 AMD 5 2012 COUNCIL DIRECTIVE OF 21 DECEMBER 1989 ON THE APPROXIMATION OF THE LAWS OF THE MEMBER STATES RELATING TO PERSONAL PROTECTIVE EQUIPMENT
IEC 61340-4-4:2012+AMD1:2014 CSV Electrostatics - Part 4-4: Standard test methods for specific applications - Electrostatic classification of flexible intermediatebulk containers (FIBC)
IEC 61340-4-7:2017 Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization
EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
ISO 13688:2013 Protective clothing — General requirements
EN ISO 20344:2011 Personal protective equipment - Test methods for footwear (ISO 20344:2011)
EN 50176:2009 Stationary electrostatic application equipment for ignitable liquid coating material - Safety requirements
EN 1149-1:2006 Protective clothing - Electrostatic properties - Part 1: Test method for measurement of surface resistivity
EN 14973:2015 Conveyor belts for use in underground installations - Electrical and flammability safety requirements
ISO 10965:2011 Textile floor coverings Determination of electrical resistance
EN 13463-1:2009 Non-electrical equipment for use in potentially explosive atmospheres - Part 1: Basic method and requirements
IEC 61340-2-3:2016 Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity of solid materials used to avoid electrostatic charge accumulation
BS 5958-2:1991 Code of practice for control of undesirable static electricity Recommendations for particular industrial situations
EN ISO 8031:2009 Rubber and plastics hoses and hose assemblies - Determination of electrical resistance and conductivity (ISO 8031:2009)
EN 1361 : 2004 RUBBER HOSES AND HOSE ASSEMBLIES FOR AVIATION FUEL HANDLING - SPECIFICATION
EN 60079-10-2:2015 Explosive atmospheres - Part 10-2: Classification of areas - Explosive dust atmospheres
NFPA 69 : 2014 EXPLOSION PREVENTION SYSTEMS
IEC 60079-10-1:2015 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
EN 50223:2015 Stationary electrostatic application equipment for ignitable flock material - Safety requirements
EN ISO 21179:2013 Light conveyor belts - Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2013)
IEC 60079-20-1:2010 Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
EN 50050:2006 Electrical apparatus for potentially explosive atmospheres - Electrostatic hand-held spraying equipment
DIN 51412-2:2013-01 TESTING OF PETROLEUM PRODUCTS - DETERMINATION OF THE ELECTRICAL CONDUCTIVITY - PART 2: FIELD METHOD
EN 14125:2013 Thermoplastic and flexible metal pipework for underground installation at petrol filling stations
EN 61340-2-1:2015 Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge
EN ISO 284:2012 Conveyor belts - Electrical conductivity - Specification and test method (ISO 284:2012)
HD 429 : 200S1 METHODS OF TEST FOR VOLUME RESISTIVITY AND SURFACE RESISTIVITY OF SOLID ELECTRICAL INSULATING MATERIALS
ISO 8330:2007 Rubber and plastics hoses and hose assemblies Vocabulary
IEC 60167:1964 Methods of test for the determination of the insulation resistance of solid insulating materials
EN 50177:2009/A1:2012 STATIONARY ELECTROSTATIC APPLICATION EQUIPMENT FOR IGNITABLE COATING POWDERS - SAFETY REQUIREMENTS
SAE J 1645 : 2011 FUEL SYSTEMS AND COMPONENTS - ELECTROSTATIC CHARGE MITIGATION
ASTM D 2624 : 2015 : REDLINE Standard Test Methods for Electrical Conductivity of Aviation and Distillate Fuels
ISO 1813:2014 Belt drives — V-ribbed belts, joined V-belts and V-belts including wide section belts and hexagonal belts — Electrical conductivity of antistatic belts: Characteristics and methods of test
IEC 61340-4-3:2001 Electrostatics - Part 4-3: Standard test methods for specific applications - Footwear
ISO 6297:1997 Petroleum products — Aviation and distillate fuels — Determination of electrical conductivity
HD 568 : 200S1 METHODS OF TEST FOR THE DETERMINATION OF THE INSULATION RESISTANCE OF SOLID INSULATING MATERIALS
ISO 284:2012 Conveyor belts — Electrical conductivity — Specification and test method
IEC 60093:1980 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials
EN ISO 12100-1:2003/A1:2009 SAFETY OF MACHINERY - BASIC CONCEPTS, GENERAL PRINCIPLES FOR DESIGN - PART 1: BASIC TERMINOLOGY, METHODOLOGY
IEC 61340-4-1:2003+AMD1:2015 CSV Electrostatics - Part 4-1: Standard test methods for specific applications - Electrical resistance of floor coverings and installed floors
ISO 16392:2017 Tyres — Electrical resistance — Test method for measuring electrical resistance of tyres on a test rig
EN ISO 20345:2011 Personal protective equipment - Safety footwear (ISO 20345:2011)
ISO 8028:1999 Rubber and/or plastics hoses and hose assemblies for airless paint spraying Specification
EN 61340-4-4:2012/A1:2015 ELECTROSTATICS - PART 4-4: STANDARD TEST METHODS FOR SPECIFIC APPLICATIONS - ELECTROSTATIC CLASSIFICATION OF FLEXIBLE INTERMEDIATE BULK CONTAINERS (FIBC) (IEC 61340-4-4:2012)
EN 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
IEC 61340-2-1:2015 Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge
EN 61340-4-1:2004/A1:2015 ELECTROSTATICS - PART 4-1: STANDARD TEST METHODS FOR SPECIFIC APPLICATIONS - ELECTRICAL RESISTANCE OF FLOOR COVERINGS AND INSTALLED FLOORS (IEC 61340-4-1:2003/A1:2015)
EN 50059:1990 Specification for electrostatic hand-held spraying equipment for non-flammable material for painting and finishing
EN 1149-2:1997 Protective clothing - Electrostatic properties - Part 2: Test method for measurement of the electrical resistance through a material (vertical resistance)
IEC 61241-2-3:1994 Electrical apparatus for use in the presence of combustible dust - Part 2: Test methods - Section 3: Method for determining minimum ignition energy of dust/air mixtures
IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
EN 60243-1:2013 ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013)
EN 60079-20-1:2010 Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
EN 61340-4-7:2017 Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization
IEC 61340-4-5:2004 Electrostatics - Part 4-5: Standard test methods for specific applications - Methods for characterizing the electrostatic protection of footwear and flooring in combination with a person
EN 60079-14:2014/AC:2016 EXPLOSIVE ATMOSPHERES - PART 14: ELECTRICAL INSTALLATIONS DESIGN, SELECTION AND ERECTION (IEC 60079-14:2013/COR1:2016)
EN ISO 13688:2013 Protective clothing - General requirements (ISO 13688:2013)
ISO 21178:2013 Light conveyor belts Determination of electrical resistances
ASTM D 257 : 2014 : REDLINE Standard Test Methods for DC Resistance or Conductance of Insulating Materials
ISO 20345:2011 Personal protective equipment Safety footwear
ISO 12100-1:2003 Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology
NFPA 77 : 2014 STATIC ELECTRICITY
IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
EN ISO 21183-1:2006 Light conveyor belts - Part 1: Principal characteristics and applications (ISO 21183-1:2005)
IEC 60243-2:2013 Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
EN 1360:2013 Rubber and plastic hoses and hose assemblies for measured fuel dispensing systems - Specification
DIN 54345-5:1985-07 TESTING OF TEXTILES; ELECTROSTATIC BEHAVIOUR; DETERMINATION OF ELECTRICAL RESISTANCE OF STRIPS OF TEXTILE FABRICS
EN 61340-2-3:2016 Electrostatics - Part 2-3: Methods of test for determining the resistance and resistivity of solid materials used to avoid electrostatic charge accumulation
EN 1149-5:2008 Protective clothing - Electrostatic properties - Part 5: Material performance and design requirements
EN 1081:1998 Resilient floor coverings - Determination of the electrical resistance
IEC TR 61340-1:2012 Electrostatics - Part 1: Electrostatic phenomena - Principles and measurements
EN 60243-2:2014 Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
EN 13821:2002 Potentially explosive atmospheres - Explosion prevention and protection - Determination of minimum ignition energy of dust/air mixtures
ISO 8031:2009 Rubber and plastics hoses and hose assemblies Determination of electrical resistance and conductivity
ISO 20344:2011 Personal protective equipment Test methods for footwear
CLC/TR 50404:2003 Electrostatics - Code of practice for the avoidance of hazards due to static electricity
EN 1149-3:2004 Protective clothing - Electrostatic properties - Part 3: Test methods for measurement of charge decay

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