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IEC 61241-14:2004

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Electrical apparatus for use in the presence of combustible dust - Part 14: Selection and installation
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

22-06-2010

Language(s)

English - French, Spanish, Castilian

Published date

14-07-2004

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements for all types of protection
   4.1 Access for inspection
   4.2 Associated equipment located in non-hazardous areas
   4.3 Segregation
   4.4 Electrical rating
   4.5 Protection from mechanical damage and environmental
         injury
   4.6 Documentation
   4.7 Qualifications of personnel
   4.8 Additional considerations
   4.9 Prevention of explosion
5 Area classification
6 Selection of electrical apparatus
   6.1 Permitted apparatus
   6.2 Selection according to dust characteristics and zones
   6.3 Selection according to temperature
   6.4 Selection of apparatus
7 Protection from dangerous (incendive) sparking
   7.1 Danger from live parts
   7.2 Danger from exposed and extraneous conductive parts
   7.3 Potential equalization
   7.4 Static electricity
   7.5 Electromagnetic radiation
   7.6 Lightning protection
   7.7 Cathodically protected metallic parts
8 Electrical protection
   8.1 General
   8.2 Location of protection and control equipment
   8.3 Resetting of short-circuit and earth-fault protection
         devices
   8.4 Protection of rotating electrical machinery
   8.5 Loss of supply phase
   8.6 Transformer protection
9 Emergency switch-off and electrical isolation
   9.1 Emergency switch-off
   9.2 Electrical isolation
10 Wiring systems
   10.1 General
   10.2 Entries for cable and conduit
   10.3 Accessories
   10.4 Course of wiring
   10.5 Barriers
   10.6 Flexible connection
   10.7 Cable entries
   10.8 Unauthorized methods
   10.9 Telecommunications circuits
   10.10 Unused openings
11 Plugs and socket outlets
   11.1 General
   11.2 Mounting
   11.3 Location
12 Additional requirements for type of protection "Ex tD"
   12.1 Practices A and B
   12.2 Practice A
   12.3 Practice B
   12.4 Motors supplied at varying frequency and voltages
13 Additional requirements for type of protection "pD"
   13.1 Sources of protective gas
   13.2 Automatic switch-off
   13.3 Alarm
   13.4 Common source of protective gas
   13.5 Switching on electrical supply
   13.6 Motors supplied at varying frequency and voltages
14 Additional requirements for type of protection "iD"
15 Additional requirements for type of protection "mD"
16 Inspection of installation
   16.1 General
   16.2 Testing
Annex A (informative) Examples of dust layers of excessive
                      thickness
Annex B (normative) Frictional sparking risks with light
                      metals and their alloys
Bibliography

Specifies general requirements, additional to those required for basic electrical safety, for the selection of electrical apparatus and instruments and associated equipment, and for the installation of electrical apparatus to ensure safe use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard.The application of electrical apparatus in atmospheres which may contain explosive gas as well as combustible dust, whether simultaneously or separately, requires additional protective measures.

DevelopmentNote
Supersedes IEC 61241-1-2. (07/2004)
DocumentType
Standard
Pages
83
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

BS EN 14677:2008 Safety of machinery. Secondary steelmaking. Machinery and equipment for treatment of liquid steel
UNI EN 13237 : 2012 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
BS EN 61241-0:2006 Electrical apparatus for use in the presence of combustible dust General requirements
11/30239006 DC : 0 BS EN 13237 - POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
BS EN 61241-17:2005 Electrical apparatus for use in the presence of combustible dust Inspection and maintenance of electrical installations in hazardous areas (other than mines)
I.S. EN 61241-1:2004 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 1: PROTECTION BY ENCLOSURES "TD"
BS EN 50174-2 : 2009 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
EN 61241-1:2004/corrigendum Dec. 2006 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 1: PROTECTION BY ENCLOSURES "TD"
EN 1010-1:2004+A1:2010 Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines - Part 1: Common requirements
EN 13237:2012 Potentially explosive atmospheres - Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
EN 61241-17:2005 Electrical apparatus for use in the presence of combustible dust - Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)
EN 61241-10:2004 Electrical apparatus for use in the presence of combustible dust - Part 10: Classification of areas where combustible dusts are or may be present
NF EN 14677 : 2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
BS EN 61241-1:2004 Electrical apparatus for use in the presence of combustible dust Protection by enclosures \'tD\'
02/204778 DC : DRAFT JULY 2002 IEC 61241-0 ED.1 - ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 0: GENERAL REQUIREMENTS
BS EN 61241-10:2004 Electrical apparatus for use in the presence of combustible dust Classification of areas where combustible dusts are or may be present
EN 50174-2 : 2009 AMD 2 2014 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
ISA 61241-10 : 2004 ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - CLASSIFICATION OF ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS
I.S. EN 61241-10:2004 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 10: CLASSIFICATION OF AREAS WHERE COMBUSTIBLE DUSTS ARE OR MAY BE PRESENT
BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
IEC 61241-0:2004 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
DIN EN 1010-1:2011-06 Safety of machinery - Safety requirements for the design and construction of printing and paper converting machines - Part 1: Common requirements (includes Amendment A1:2010)
09/30206527 DC : 0 BS EN 60079-0 ED 6.0 - EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS
I.S. EN 13237:2012 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
DIN EN 1127-1:2011-10 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
I.S. EN 1010-1:2005 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PRINTING AND PAPER CONVERTING MACHINES - PART 1: COMMON REQUIREMENTS
I.S. EN 50174-2:2009 INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
DIN EN 14677:2008-11 SAFETY OF MACHINERY - SECONDARY STEEL MAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
02/204779 DC : DRAFT JULY 2002 IEC 61241-17 ED.1 - ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 17: INSPECTION AND MAINTENANCE OF ELECTRICAL INSTALLATIONS IN HAZARDOUS AREAS (OTHER THAN MINES)
07/30152812 DC : DRAFT AUG 2007 BS EN 50174-2 - INFORMATION TECHNOLOGY - CABLING INSTALLATION - PART 2: INSTALLATION PLANNING AND PRACTICES INSIDE BUILDINGS
I.S. EN 61241-17:2005 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 17: INSPECTION AND MAINTENANCE OF ELECTRICAL INSTALLATIONS IN HAZARDOUS AREAS (OTHER THAN MINES)
BS EN 1127-1:2019 Explosive atmospheres. Explosion prevention and protection Basic concepts and methodology
ISA 12.10.05 : 2004 ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - CLASSIFICATION OF ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS
I.S. EN 1127-1:2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
EEMUA 186 : 2016 A PRACTITIONER'S HANDBOOK FOR POTENTIALLY EXPLOSIVE ATMOSPHERES
BS EN 1010-1 : 2004 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PRINTING AND PAPER CONVERTING MACHINES - PART 1: COMMON REQUIREMENTS
IEC 61241-17:2005 Electrical apparatus for use in the presence of combustible dust - Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)
UNI EN 14677 : 2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
UNI EN 1010-1 : 2011 SAFETY OF MACHINERY - SAFETY REQUIREMENTS FOR THE DESIGN AND CONSTRUCTION OF PRINTING AND PAPER CONVERTING MACHINES - PART 1: COMMON REQUIREMENTS
PD 6686:2006 Guidance on directives, regulations and standards related to prevention of fire and explosion in the process industries
UNI EN 1127-1 : 2011 EXPLOSIVE ATMOSPHERES - EXPLOSION PREVENTION AND PROTECTION - PART 1: BASIC CONCEPTS AND METHODOLOGY
ISA 61241-1 : 2006 ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - PROTECTION BY ENCLOSURES "TD"
I.S. EN 61241-0:2006 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 0: GENERAL REQUIREMENTS
07/30169755 DC : 0 BS EN 60364-5-53 - LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - PROTECTION, ISOLATION, SWITCHING, CONTROL AND MONITORING
IEC 61241-1:2004 Electrical apparatus for use in the presence of combustible dust - Part 1: Protection by enclosures "tD"
BS EN 13237:2012 Potentially explosive atmospheres. Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres
IEC 61241-10:2004 Electrical apparatus for use in the presence of combustible dust - Part 10: Classification of areas where combustible dusts are or may be present
EN 14677:2008 Safety of machinery - Secondary steelmaking - Machinery and equipment for treatment of liquid steel
02/205209 DC : DRAFT JULY 2002 IEC 61241-1 ED.1 - ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 1: PROTECTION BY ENCLOSURES 'TD'
07/30169774 DC : 0 BS EN 60364-5-53 - LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - PROTECTION, ISOLATION, SWITCHING, CONTROL AND MONITORING
07/30174641 DC : DRAFT DEC 2007 BS EN 62305-3 - PROTECTION AGAINST LIGHTNING - PART 3: PHYSICAL DAMAGE TO STRUCTURES AND LIFE HAZARD
DIN EN 14677 E : 2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
I.S. EN 14677:2008 SAFETY OF MACHINERY - SECONDARY STEELMAKING - MACHINERY AND EQUIPMENT FOR TREATMENT OF LIQUID STEEL
DIN EN 13237:2013-01 POTENTIALLY EXPLOSIVE ATMOSPHERES - TERMS AND DEFINITIONS FOR EQUIPMENT AND PROTECTIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
EN 1127-1:2011 Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
EN 61241-0:2006 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements

IEC 61024-1-1:1993 Protection of structures against lightning - Part 1: General principles - Section 1: Guide A: Selection of protection levels for lightning protection systems
IEC 61024-1:1990 Protection of structures against lightning - Part 1: General principles
IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
ISO 4225:1994 Air quality General aspects Vocabulary
IEC 61241-0:2004 Electrical apparatus for use in the presence of combustible dust - Part 0: General requirements
IEC 61241-11:2005 Electrical apparatus for use in the presence of combustible dust - Part 11: Protection by intrinsic safety 'iD'
IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres
IEC 61241-17:2005 Electrical apparatus for use in the presence of combustible dust - Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)
IEC 61558-1:2017 Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests
IEC 61241-1:2004 Electrical apparatus for use in the presence of combustible dust - Part 1: Protection by enclosures "tD"
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
IEC 61241-18:2004 Electrical apparatus for use in the presence of combustible dust - Part 18: Protection by encapsulation 'mD'
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
IEC 61241-10:2004 Electrical apparatus for use in the presence of combustible dust - Part 10: Classification of areas where combustible dusts are or may be present

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