What You Need to Know About IEC 61936-1:2021 for AC Power Installations Higher Than 1 kV
IEC 61936-1:2021 - The New Standard for AC Power Installations Exceeding 1 kV
If you are involved in the design and erection of electrical power installations in systems with nominal voltages exceeding 1 kV AC and nominal frequency up to and including 60 Hz, you need to be aware of the latest edition of IEC 61936-1:2021. This international standard provides requirements for the safety and proper functioning of such installations, covering various aspects such as equipment, insulation coordination, protection, earthing, ventilation and maintenance.
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In this article, we will give you an overview of the main changes and updates in IEC 61936-1:2021 compared to the previous edition, and explain how you can access and download the full standard for free.
What is IEC 61936-1:2021?
IEC 61936-1:2021 is the third edition of the international standard for power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC. It was published by the International Electrotechnical Commission (IEC) in July 2021, replacing the second edition from 2010.
The standard applies to various types of electrical power installations, such as substations, power stations, factories, offshore facilities and transition towers/poles. It covers a wide range of equipment, such as rotating electrical machines, switchgear, transformers, converters, cables, wiring systems, batteries, capacitors and large air core reactors.
The standard does not apply to overhead and underground lines between separate electrical power installations, electrified railway tracks and rolling stock, mining equipment and installations, fluorescent lamp installations, installations on ships and offshore units used in the petroleum industry, electrostatic equipment, test sites and medical equipment.
The standard also does not apply to the design of prefabricated, type-tested switchgear and high voltage/low voltage prefabricated substation, for which separate IEC standards exist.
What are the main changes and updates in IEC 61936-1:2021?
According to the IEC Webstore, IEC 61936-1:2021 includes the following significant technical changes with respect to the previous edition:
The introduction has been rewritten to reflect the status when this document is produced;
The scope has been improved to clarify the application of this document;
Missing and obsolete terms and definitions have been updated including improvement of existing terms;
Table 1 has been updated where agreements between supplier and user are needed;
Requirements of electromagnetic compatibility have been clarified;
Insulation coordination clause (Clause 5) has improved wording for better clarity and the technical content has an updated coordination to the latest versions of the insulation coordination standards;
Wording regarding electrical equipment has been improved and made clearer;
Subclause for fuses has been improved and reworded;
Requirements have been added for labelling when multiple sources are required to be disconnected;
Missing requirements for GIS have been reintroduced;
Subclause regarding ventilation (HVAC) has been improved;
Figures in Clause 7 have been updated and moved to the corresponding subclause;
Requirements for transformer installations have been improved including adjustment of editorial typing-errors;
Clause on protection, automation and auxiliary systems has been restructured and improved;
Protection against lightning strokes has been extended;
Clarification of content due to the distinction between erection (and providing electrical safety for the intended use of the electrical power installation) and subsequent activities such as maintenance and repair with safe working procedures.
How can you access and download IEC 61936-1:2021 for free?
If you want to get a full copy of IEC 61936-1:2021, you can purchase it from the official IEC Webstore or from other authorized distributors. However, if you are looking for a free download option, you can try some of these alternatives:
You can use a web scraper tool or a browser extension to extract the text from the preview pages on the IEC Webstore or other websites that offer a preview option. However, this method may not give you a complete or accurate copy of the standard.
You can use a file sharing platform or a torrent site to search for a PDF version of the standard uploaded by other users. However, this method may expose you to legal risks or malware infections.
You can use a document sharing platform or a library database to search for a PDF version of the standard shared by other users or institutions. However, this method may require you to register or pay a subscription fee.
Conclusion
IEC 61936-1:2021 is the latest edition of the international standard for power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC. It provides requirements for the design and erection of such installations, covering various aspects such as equipment, insulation coordination, protection, earthing, ventilation and maintenance. It includes several changes and updates compared to the previous edition from 2010.
If you want to access and download IEC 61936-1:2021 for free, you can try some of the methods mentioned above. However, we recommend that you purchase a legal copy from the official IEC Webstore or other authorized distributors to ensure that you get a complete and accurate version of the standard.
Why is IEC 61936-1:2021 important for AC power installations exceeding 1 kV?
IEC 61936-1:2021 is important for AC power installations exceeding 1 kV because it provides a common set of rules and requirements that ensure the safety and proper functioning of such installations. By following the standard, the designers and installers of AC power installations can avoid potential hazards such as electric shock, fire, explosion, electromagnetic interference and environmental damage.
Moreover, IEC 61936-1:2021 is aligned with the latest versions of the relevant IEC standards for insulation coordination, equipment, protection, automation and auxiliary systems. This ensures the compatibility and interoperability of the different components and systems of AC power installations exceeding 1 kV.
Furthermore, IEC 61936-1:2021 is recognized and adopted by many countries and regions as a national or regional standard. This facilitates the international trade and cooperation of AC power installations exceeding 1 kV and their related products and services.
How can you implement IEC 61936-1:2021 in your AC power installations exceeding 1 kV?
If you want to implement IEC 61936-1:2021 in your AC power installations exceeding 1 kV, you need to follow the requirements and recommendations of the standard for the design and erection of such installations. You also need to comply with any applicable provincial, national or regional regulations that may be more stringent or specific than the standard.
Some of the main aspects that you need to consider when implementing IEC 61936-1:2021 are:
The selection and installation of equipment according to their ratings, characteristics, functions and environmental conditions;
The insulation coordination between different parts of the installation and between the installation and external influences;
The protection against overvoltages, overcurrents, short-circuits, earth faults and lightning strokes;
The earthing system design and installation to ensure safety and proper operation;
The ventilation (HVAC) system design and installation to prevent overheating and moisture accumulation;
The protection, automation and auxiliary systems design and installation to monitor, control and operate the installation;
The maintenance and repair procedures to ensure the reliability and availability of the installation.
Conclusion
In this article, we have given you an overview of IEC 61936-1:2021, the new standard for AC power installations exceeding 1 kV. We have explained what it is, what are the main changes and updates compared to the previous edition, how you can access and download it for free, why it is important for such installations, and how you can implement it in your projects.
We hope that this article has been useful and informative for you. If you have any questions or comments about IEC 61936-1:2021 or AC power installations exceeding 1 kV, please feel free to contact us or leave a comment below.
What are some challenges of AC power installations exceeding 1 kV?
AC power installations exceeding 1 kV also have some challenges and limitations compared to lower voltage installations, such as:
Higher risks: AC power installations exceeding 1 kV pose higher risks of electric shock, fire, explosion and environmental damage than lower voltage installations. Therefore, they require more stringent safety measures and regulations to prevent and mitigate such hazards.
Higher complexity: AC power installations exceeding 1 kV involve higher complexity of design, erection, operation and maintenance than lower voltage installations. Therefore, they require more skilled and qualified personnel and more sophisticated tools and equipment to ensure their proper functioning.
Higher interference: AC power installations exceeding 1 kV generate higher levels of electromagnetic interference and noise than lower voltage installations. Therefore, they require more careful coordination and compatibility with other electrical and electronic devices and systems to avoid adverse effects.
Lower availability: AC power installations exceeding 1 kV are more susceptible to faults and failures than lower voltage installations. Therefore, they require more backup and contingency plans and more frequent inspections and repairs to ensure their availability and reliability.
How can you learn more about IEC 61936-1:2021 and AC power installations exceeding 1 kV?
If you want to learn more about IEC 61936-1:2021 and AC power installations exceeding 1 kV, you can use some of these resources:
The official IEC Webstore, where you can purchase or download the full standard and other related publications;
The official IEC website, where you can find more information about the IEC organization, its activities, its standards and its services;
The official IEC YouTube channel, where you can watch videos about the IEC standards and their applications;
The official IEC LinkedIn page, where you can follow the latest news and updates from the IEC community;
The official IEC Twitter account, where you can get instant updates and interact with the IEC team;
The official IEC Facebook page, where you can join the conversation and share your feedback with the IEC fans;
The official IEC Instagram account, where you can see the behind-the-scenes of the IEC work;
The official IEC blog, where you can read stories and insights from the IEC experts;
The official IEC podcast, where you can listen to interviews and discussions with the IEC leaders and stakeholders;
The official IEC newsletter, where you can subscribe to receive regular updates and information from the IEC.
Conclusion
In this article, we have given you an overview of IEC 61936-1:2021, the new standard for AC power installations exceeding 1 kV. We have explained what it is, what are the main changes and updates compared to the previous edition, how you can access and download it for free, why it is important for such installations, how you can implement it in your projects, what are some examples of such installations, what are some benefits of such installations, what are some challenges of such installations and how you can learn more about it.
We hope that this article has been useful and informative for you. If you have any questions or comments about IEC 61936-1:2021 or AC power installations exceeding 1 kV, please feel free to contact us or leave a comment below.
Conclusion
In this article, we have given you an overview of IEC 61936-1:2021, the new standard for AC power installations exceeding 1 kV. We have explained what it is, what are the main changes and updates compared to the previous edition, how you can access and download it for free, why it is important for such installations, how you can implement it in your projects, what are some examples of such installations, what are some benefits of such installations, what are some challenges of such installations and how you can learn more about it.
IEC 61936-1:2021 is a comprehensive and up-to-date standard that provides requirements for the design and erection of electrical power installations in systems with nominal voltages exceeding 1 kV AC and nominal frequency up to and including 60 Hz. It covers various aspects such as equipment, insulation coordination, protection, earthing, ventilation and maintenance. It ensures the safety and proper functioning of such installations for the use intended.
If you are involved in the design and erection of AC power installations exceeding 1 kV, you should follow the standard and comply with any applicable provincial, national or regional regulations. By doing so, you can benefit from higher efficiency, lower costs, better performance and more flexibility of your installations. You can also avoid potential hazards such as electric shock, fire, explosion and environmental damage.
If you want to learn more about IEC 61936-1:2021 and AC power installations exceeding 1 kV, you can use some of the resources that we have listed above. You can also contact us or leave a comment below if you have any questions or comments about the standard or the installations.
We hope that this article has been useful and informative for you. Thank you for reading and have a great day! ca3e7ad8fd