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AS/NZS 60079.10:2004

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Electrical apparatus for explosive gas atmospheres Classification of hazardous areas (IEC 60079-10:2002 MOD)
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

26-06-2021

Published date

20-05-2004

Preview

Specifies the classification of hazardous areas where flammable gas or vapour risks may arise, in order to permit the proper selection and installation of apparatus for use in such hazardous areas.

This part of IEC 60079 is concerned with the classification of hazardous areas where flammable gas or vapour risks may arise, in order to permit the proper selection and installation of apparatus for use in such hazardous areas. It is intended to be applied where there may be a risk of ignition due to the presence of flammable gas or vapour, mixed with air under normal atmospheric conditions (see note 2), but it does not apply to a) mines susceptible to firedamp; b) the processing and manufacture of explosives; c) areas where a risk may arise due to the presence of ignitable dusts or fibres; d) catastrophic failures which are beyond the concept of abnormality dealt with in this standard (see note 3); e) rooms used for medical purposes; f) areas where the presence of flammable mist may give rise to an unpredictable risk and which require special consideration (see note 5); g) domestic premises. h) areas which may be affected by oxygen enrichment. This standard does not take into account the effects of consequential damage. Definitions and explanations of terms are given together with the main principles and procedures relating to hazardous area classification. For detailed recommendations regarding the extent of the hazardous areas in specific industries or applications, reference may be made to the codes relating to those industries or applications. Some specific examples of area classifications are contained in the various Parts of AS/NZS 2430.3. NOTE 1 For the purpose of this standard, an area is a three-dimensional region or space. NOTE 2 Atmospheric conditions include variations above and below reference levels of 101,3 kPa (1 013 mbar) and 20°C (293 K), provided that the variations have a negligible effect on the explosion properties of the flammable materials. NOTE 3 Catastrophic failure in this context is applied, for example, to the rupture of a process vessel or pipeline and events that are not predictable. NOTE 4 In any process plant, irrespective of size, there may be numerous sources of ignition apart from those associated with electrical apparatus. Appropriate precautions will be necessary to ensure safety in this context. This standard may be used with judgement for other ignition sources. NOTE 5 Mists may form or be present at the same time as flammable vapours. This may affect the way flammable material disperses and the extent of any hazardous areas. The strict application of area classification for gases and vapours may not be appropriate because the flammability characteristics of mists are not always predictable. Whilst it can be difficult to decide upon the type and extent of zones, the criteria applicable to gases and vapours will, in most cases, give a safe result. However, special consideration should always be given to the danger of ignition of flammable mists.

Committee
MS-011
DocumentType
Standard
ISBN
0 7337 5977 7
Pages
54
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
IEC 60079-10:2002 Identical

First published in Australia as AS 1076.2-1977.AS 2430.1-1981 first published 1982.AS 1076.2-1977 and AS 2430.1-1981 revised and redesignated as AS 2430.1-1982.Third edition AS 2430.1-1987.First published in New Zealand as NZS 6101.1:1988.AS 2430.1-1987 and NZS 6101.1:1988 jointly revised and redesignated as AS/NZS 60079.10:2004. First published in Australia as AS 1076.2-1977. AS 2430.1-1981 first published 1982. AS 1076.2-1977 and AS 2430.1-1981 revised and redesignated as AS 2430.1-1982. Third edition AS 2430.1-1987. First published in New Zealand as NZS 6101.1:1988. AS 2430.1-1987 and NZS 6101.1:1988 jointly revised and redesignated as AS/NZS 60079.10:2004.

AS/NZS 2430.3.2:2004 Classification of hazardous areas - Examples of area classification - Vehicle workshops, vehicle parking, fuel dispensing stations and aircraft hangars
AS/NZS 2430.3.6:2004 Classification of hazardous areas Examples of area classification - Laboratories, including fume cupboards and flammable medical agents
AS/NZS 2430.3.7:2004 Classification of hazardous areas Examples of area classification - Landfill gas, sewage treatment and sewage pumping plants
AS/NZS 60079.20:2000 Electrical apparatus for explosive gas atmospheres Data for flammable gases and vapours, relating to the use of electrical apparatus
AS/NZS 2430.3.3:2004 Classification of hazardous areas Examples of area classification - Flammable liquids
AS 1940-1993 The storage and handling of flammable and combustible liquids
AS/NZS 2430.3.1:2004 Classification of hazardous areas Examples of area classification - General
AS/NZS 2430.3.4:2004 Classification of hazardous areas - Examples of area classification - Flammable gases
AS/NZS 2430.3.9:2004 Classification of hazardous areas Examples of area classification - Miscellaneous
AS/NZS 2430.3.5:2004 Classification of hazardous areas Examples of area classification - Refineries and major processing plants
AS/NZS 60079.4:2000 Electrical apparatus for explosive gas atmospheres Method of test for ignition temperature
AS/NZS 2430.3.8:2004 Classification of hazardous areas Examples of area classification - Surface coatings and adhesives

AS/NZS 60335.2.11:2009 Household and similar electrical appliances - Safety Particular requirements for tumble dryers (IEC 60335-2-11 Ed 7.1, MOD)
AS/NZS 3015:2004 Electrical installations - Extra-low voltage d.c. power supplies and service earthing within public telecommunications networks
AS/NZS 2430.3.9:2004 Classification of hazardous areas Examples of area classification - Miscellaneous
AS/NZS 60079.29.2:2008 Explosive atmospheres Gas detectors - Selection, installation, use and maintenance of detectors for flammable gases and oxygen
AS/NZS 2430.3.4:2004 Classification of hazardous areas - Examples of area classification - Flammable gases
AS/NZS 4024.1:2006 Series Safety of machinery Safety of machinery series
AS/NZS 5070.1:2008 Siting and operation of radiocommunications facilities General guidelines for fixed, mobile and broadcasting facilities including fixed location satellite earth stations independent of the operating frequency (Reconfirmed 2019)
AS/NZS 60079.0:2008 Explosive atmospheres Equipment - General requirements
AS 4024.1202-2006 Safety of machinery General principles - Technical principles
AS 2865-2009 Confined spaces
AS/NZS 4761.2:2008 Competencies for working with electrical equipment for hazardous areas (EEHA) Guide to assessing competency
AS/NZS 2430.3.2:2004 Classification of hazardous areas - Examples of area classification - Vehicle workshops, vehicle parking, fuel dispensing stations and aircraft hangars
AS/NZS 2290.1:2005 Electrical equipment for coal mines - Introduction and maintenance - For hazardous areas
AS/NZS 1680.1:2006 Interior and workplace lighting General principles and recommendations
AS/NZS 3004.2:2008 Electrical installations - Marinas and recreational boats Recreational boats installations
AS/NZS 2430.3.7:2004 Classification of hazardous areas Examples of area classification - Landfill gas, sewage treatment and sewage pumping plants
AS 2746-2008 Working areas for gas-fuelled vehicles
AS/NZS 2430.3.5:2004 Classification of hazardous areas Examples of area classification - Refineries and major processing plants
AS/NZS 3000:2007 Electrical installations (known as the Australian/New Zealand Wiring Rules)
AS/NZS 60079.30.2:2007 Explosive atmospheres Electrical resistance trace heating - Application guide for design, installation and maintenance (IEC 60079-30-2, Ed. 1.0 (2007) MOD)
AS/NZS 4761.1:2008 Competencies for working with electrical equipment for hazardous areas (EEHA) Competency Standards
AS 60204.11-2006 Safety of machinery - Electrical equipment of machines Requirements for HV equipment for voltages above 1000 V a.c. or 1500 V d.c and not exceeding 36 kV (IEC 60204-11, Ed. 1.0 (2000) MOD)
AS 2885.1-2007 Pipelines - Gas and liquid petroleum - Design and construction
AS/NZS 2381.1:2005 Electrical equipment for explosive gas atmospheres - Selection, installation and maintenance - General requirements
AS 60204.1-2005 Safety of machinery - Electrical equipment of machines General requirements (IEC 60204-1, Ed. 5 (FDIS) MOD)
AS/NZS 1425:2007 LP Gas fuel systems for vehicle engines
AS/NZS 2430.3.8:2004 Classification of hazardous areas Examples of area classification - Surface coatings and adhesives
AS/NZS 2430.3.1:2004 Classification of hazardous areas Examples of area classification - General
AS/NZS 3788:2006 Pressure equipment - In-service inspection (Reconfirmed 2017)
AS/NZS 1596:2008 The storage and handling of LP Gas
AS/NZS 2430.3.6:2004 Classification of hazardous areas Examples of area classification - Laboratories, including fume cupboards and flammable medical agents
HB 13-2007 Electrical equipment for hazardous areas
AS/NZS 60079.30.1:2007 Explosive atmospheres Electrical resistance trace heating - General and testing requirements
AS/NZS 60335.2.40:2006 Household and similar electrical appliances - Safety Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers (IEC 60335-2-40 Ed 4.2, IDT)
AS 2832.3-2005 Cathodic protection of metals Fixed immersed structures
AS/NZS 2430.3.3:2004 Classification of hazardous areas Examples of area classification - Flammable liquids
AS/NZS 60079.7:2006 Explosive atmospheres Equipment protection by increased safety 'e'
AS/NZS 2381.2:2006 Electrical equipment for explosive atmospheres - Selection, installation and maintenance Flameproof enclosure d
AS/NZS 60079.14:2009 Explosive atmospheres Electrical installations design, selection and erection (IEC 60079-14, Ed. 4.0 (2007) MOD)
AS/NZS 1826:2008 Electrical equipment for explosive gas atmospheres - Special protection - Type of protection ‘s’
AS/NZS 60079.26:2007 Explosive atmospheres Equipment with equipment protection level (EPL) Ga
AS/NZS 60079.28:2007 Explosive atmospheres Protection of equipment and transmission systems using optical radiation

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