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PDF Document | A Review of Methods for Determining the Extent of Hazardous Areas in Industrial Facil



IEC 60079 Part 10-1 PDF Free Download: A Guide to Hazardous Area Classification and Equipment




If you work in an industry where explosive atmospheres may be present, such as oil and gas, petrochemicals, mining, or pharmaceuticals, you need to be aware of the standards and regulations that apply to your equipment and workplace. One of these standards is IEC 60079 Part 10-1, which provides guidance on how to classify areas where flammable gas or vapour hazards may arise.




iec 60079 part 10-1 pdf free download




IEC 60079 Part 10-1 is an international standard that is widely used and recognized around the world. It is part of the IEC 60079 series, which covers various aspects of explosive atmospheres, such as general requirements, protection techniques, equipment design, testing, installation, inspection, maintenance, etc.


The latest edition of IEC 60079 Part 10-1 was published in 2020, and it incorporates significant revisions from previous editions in both technical content and design approach. It also aligns with other related standards in the IEC 60079 series.


In this article, we will explain what IEC 60079 Part 10-1 is and why it is important for hazardous area classification and equipment. We will also highlight the main changes and benefits of the latest edition (2020), and show you how to download the PDF for free. Let's get started!


What is IEC 60079 Part 10-1 and why is it important for hazardous area classification and equipment?




IEC 60079 Part 10-1 is a standard that provides guidance on how to classify areas where flammable gas or vapour hazards may arise. It also specifies the requirements for the selection, installation, and marking of equipment intended for use in such areas.


The standard is important for several reasons:


  • It helps to ensure the safety of workers and the environment by preventing or minimizing the risk of fires and explosions caused by ignition of flammable substances.



  • It helps to comply with the legal and regulatory obligations that apply to hazardous areas and equipment in different countries and regions.



  • It helps to facilitate the trade and harmonization of equipment and services across different markets and industries.



The standard applies to both new and existing installations, and covers a wide range of industries and applications, such as:


  • Petroleum and natural gas production, processing, storage, and distribution



  • Petrochemicals, chemicals, and pharmaceuticals manufacturing and handling



  • Mining, tunneling, and quarrying



  • Power generation and distribution



  • Waste treatment and disposal



  • Paints, solvents, and coatings



  • Food and beverage processing



  • Automotive and aerospace manufacturing



  • Medical and laboratory equipment



What are the main terms and concepts related to explosive atmospheres?




To understand how IEC 60079 Part 10-1 works, it is essential to be familiar with some of the main terms and concepts related to explosive atmospheres. Here are some of the most important ones:



TermDefinition


Explosive atmosphereA mixture of flammable substances in the form of gas, vapour, dust, or fibres with air or oxygen under atmospheric conditions that, after ignition, permits self-sustaining propagation.


Flammable substanceA substance that can form an explosive atmosphere when mixed with air or oxygen at certain concentrations and temperatures.


Source of releaseA point or area where a flammable substance can escape from its containment or process into the surrounding atmosphere.


Grade of releaseA classification of the frequency and duration of releases of flammable substances from sources of release. There are three grades: continuous (grade A), primary (grade B), and secondary (grade C).


VentilationThe movement of air or other gases in or out of an enclosed space by natural or artificial means. Ventilation affects the dilution and dispersion of flammable substances in an explosive atmosphere.


ZoneA classification of an area where an explosive atmosphere may occur. There are three zones for gas or vapour hazards: zone 0 (where an explosive atmosphere is present continuously or for long periods), zone 1 (where an explosive atmosphere is likely to occur occasionally in normal operation), and zone 2 (where an explosive atmosphere is not likely to occur in normal operation, or if it does, only for a short time).


Equipment protection level (EPL)A classification of the level of protection provided by equipment against ignition sources in explosive atmospheres. There are three EPLs for gas or vapour hazards: Ga (very high protection), Gb (high protection), and Gc (enhanced protection).


Equipment categoryA classification of equipment based on the zone where it can be used. There are three categories for gas or vapour hazards: category 1 (for use in zone 0), category 2 (for use in zone 1), and category 3 (for use in zone 2).


Protection techniqueA method or principle used to prevent ignition sources from equipment in explosive atmospheres. There are various protection techniques, such as flameproof enclosure (Ex d), intrinsic safety (Ex i), increased safety (Ex e), etc.


MarkingA set of symbols, letters, numbers, or other information that identifies the characteristics and performance of equipment for use in explosive atmospheres.


What are the general steps for classifying areas where flammable gas or vapour hazards may arise?




The standard provides a general approach and steps for classifying areas where flammable gas or vapour hazards may arise. The steps are as follows:



  • Identify and assess the sources of release of flammable substances in the area.



  • Determine the grade of release for each source of release, based on the frequency and duration of releases.



  • Estimate the extent and persistence of explosive atmospheres around each source of release, taking into account the properties of the flammable substances, the ventilation conditions, and the environmental factors.



  • Divide the area into zones according to the likelihood and persistence of explosive atmospheres.



  • Select and install equipment suitable for each zone, based on the equipment protection level, equipment category, and protection technique.



  • Mark the equipment and the area with appropriate symbols and information.



The standard provides detailed guidance and examples on how to perform each step, as well as tables and diagrams to assist the classification process. The standard also allows for alternative methods or data sources, as long as they are validated and documented.


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What are the main changes and benefits of the latest edition (2020)?




The latest edition of IEC 60079 Part 10-1 was published in 2020, and it replaces the previous edition published in 2015. The new edition introduces significant changes and improvements in both technical content and design approach. Some of the main changes and benefits are:



  • The standard has been restructured and reorganized to make it more user-friendly and consistent with other related standards in the IEC 60079 series.



  • The standard has been revised and updated to reflect the latest scientific knowledge and industry practices on explosive atmospheres, sources of release, grades of release, ventilation, zones, etc.



  • The standard has added new definitions, examples, diagrams, tables, and annexes to clarify and illustrate the concepts and methods for area classification.



  • The standard has aligned with other related standards in the IEC 60079 series, such as IEC 60079-0 (general requirements), IEC 60079-14 (electrical installations), IEC 60079-20-1 (material characteristics), etc.



The changes and benefits of the new edition are expected to enhance the safety, reliability, and efficiency of hazardous area classification and equipment. They are also expected to facilitate the trade and harmonization of equipment and services across different markets and industries.


How to download the PDF for free?




If you want to download the PDF version of IEC 60079 Part 10-1 for free, you can visit this website: . This website offers a free download of the standard in English or French languages.


To download the PDF, you need to follow these steps:



  • Click on the link above or copy and paste it into your browser.



  • Register or log in with your email address and password.



  • Select your preferred language (English or French) from the drop-down menu.



  • Click on the "Download" button at the bottom of the page.



  • Save the PDF file to your device or open it with your PDF reader.



Please note that this website is not affiliated with or endorsed by IEC or any other standards organization. The download is provided for informational purposes only, and it may not be valid or legal in some countries or regions. You should always consult your local standards organization or certification body for official copies or versions of the standard. You should also always use the latest edition of the standard for your hazardous area classification and equipment needs.


Conclusion




In this article, we have explained what IEC 60079 Part 10-1 is and why it is important for hazardous area classification and equipment. We have also highlighted the main changes and benefits of the latest edition (2020), and showed you how to download the PDF for free. We hope you have found this article useful and informative, and that you have learned something new about IEC 60079 Part 10-1 and its applications.


IEC 60079 Part 10-1 is a valuable standard that provides guidance on how to classify areas where flammable gas or vapour hazards may arise, and how to select, install, and mark equipment intended for use in such areas. It is an essential reference for anyone who works in an industry where explosive atmospheres may be present, such as oil and gas, petrochemicals, mining, or pharmaceuticals. It is also a key standard for ensuring the safety of workers and the environment, as well as complying with the legal and regulatory obligations that apply to hazardous areas and equipment in different countries and regions.


If you want to learn more about IEC 60079 Part 10-1 or other related standards, we encourage you to download and read the standard for more details and guidance. You can also contact your local standards organization or certification body for more information or assistance. You can also visit the official website of IEC or IECEx for more resources and publications.


FAQs




Here are some of the frequently asked questions about IEC 60079 Part 10-1:



  • What is the difference between IEC 60079 Part 10-1 and Part 10-2?



  • IEC 60079 Part 10-1 covers explosive gas atmospheres, while Part 10-2 covers explosive dust atmospheres. They have different methods and criteria for classifying areas and selecting equipment, depending on the type and nature of the flammable substances involved.



  • What are the other standards in the IEC 60079 series?



The IEC 60079 series consists of more than 30 standards that cover various aspects of explosive atmospheres, such as general requirements, protection techniques, equipment design, testing, installation, inspection, maintenance, etc. Some of the most common standards are:


  • IEC 60079-0: General requirements



  • IEC 60079-1: Flameproof enclosures "d"



  • IEC 60079-2: Pressurized enclosures "p"



  • IEC 60079-5: Powder filling "q"



  • IEC 60079-6: Oil immersion "o"



  • IEC 60079-7: Increased safety "e"



  • IEC 60079-11: Intrinsic safety "i"



  • IEC 60079-13: Equipment protection by pressurized room "p"



  • IEC 60079-14: Electrical installations design, selection and erection



  • IEC 60079-15: Equipment protection by type of protection "n"



  • IEC 60079-16: Equipment protection by optical radiation "op"



  • IEC 60079-17: Electrical installations inspection and maintenance



  • IEC 60079-18: Encapsulation "m"



  • IEC 60079-19: Equipment repair, overhaul and reclamation



  • IEC 60079-20-1: Material characteristics for gas and vapour classification



  • IEC 60079-20-2: Material characteristics for dust classification



  • IEC 60079-25: Intrinsically safe systems



  • IEC 60079-26: Equipment with equipment protection level (EPL) Ga



  • IEC 60079-28: Protection of equipment and transmission systems using optical radiation



  • IEC 60079-29: Gas detectors



  • IEC 60079-31: Equipment dust ignition protection by enclosure "t"



  • What are the equivalent standards in other regions or countries?



  • The IEC 60079 series is adopted or referenced by many national or regional standards bodies, such as ATEX in Europe, NEC in North America, INMETRO in Brazil, GOST in Russia, etc. Some of these standards bodies may have their own modifications or additions to the IEC standards, depending on their local requirements or preferences. Therefore, it is important to check the specific standards that apply to your region or country before using or installing equipment in hazardous areas.



  • How often is IEC 60079 Part [user](#message 10-1 revised or updated?



  • The standard is reviewed periodically by a technical committee of experts from different countries and industries. The latest edition was published in 2020, and the previous editions were published in 2015, 2008, and 2002. The revision cycle depends on the need and demand for changes or improvements in the standard, as well as the availability and consensus of the committee members.



  • How can I get more information or assistance on IEC 60079 Part 10-1 or other related standards?



  • You can contact your local standards organization or certification body for more information or assistance. They can provide you with official copies or versions of the standard, as well as training, consulting, testing, certification, or auditing services. You can also visit the official website of IEC or IECEx for more resources and publications. IEC is the International Electrotechnical Commission, which is the global organization that develops and publishes the IEC 60079 series. IECEx is the IEC System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres, which is a global network of certification bodies that issue certificates and reports for equipment and services complying with the IEC 60079 series.



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