BS EN IEC 61226:2021 - Nuclear Power Plants Safety Standard

Ensure the utmost safety and reliability in nuclear power plant operations with the BS EN IEC 61226:2021 standard. This comprehensive document is an essential resource for professionals in the nuclear energy sector, providing detailed guidelines on the categorization of functions and classification of systems that are crucial to the safety of nuclear power plants.

Overview

The BS EN IEC 61226:2021 standard is a pivotal document that addresses the instrumentation, control, and electrical power systems within nuclear power plants. Released on July 29, 2021, this standard is designed to enhance the safety protocols by offering a structured approach to categorizing and classifying the various systems and functions that are vital to plant safety.

Key Features

• Standard Number: BS EN IEC 61226:2021
• Pages: 46
• ISBN: 978 0 539 02465 4
• Status: Standard

Why This Standard is Essential

Nuclear power plants are complex facilities that require meticulous attention to safety and operational efficiency. The BS EN IEC 61226:2021 standard plays a critical role in ensuring that all systems and functions are properly categorized and classified, which is essential for maintaining the highest levels of safety. By adhering to this standard, nuclear facilities can effectively manage risks and ensure compliance with international safety regulations.

Instrumentation and Control Systems

Instrumentation and control systems are the backbone of nuclear power plant operations. This standard provides a framework for categorizing these systems based on their importance to safety, ensuring that critical systems receive the necessary attention and resources to function optimally.

Electrical Power Systems

Electrical power systems are integral to the safe operation of nuclear power plants. The BS EN IEC 61226:2021 standard outlines the classification of these systems, helping to prioritize maintenance and upgrades to prevent failures that could compromise plant safety.

Benefits of Compliance

Compliance with the BS EN IEC 61226:2021 standard offers numerous benefits, including:

• Enhanced Safety: By following the guidelines for categorization and classification, nuclear power plants can significantly reduce the risk of accidents and incidents.
• Regulatory Compliance: Adhering to this standard ensures that nuclear facilities meet international safety regulations, avoiding potential legal and financial penalties.
• Operational Efficiency: Proper classification of systems allows for more efficient allocation of resources, leading to improved operational performance.
• Risk Management: The standard provides a structured approach to risk management, helping facilities identify and mitigate potential hazards.

Who Should Use This Standard?

The BS EN IEC 61226:2021 standard is an invaluable resource for a wide range of professionals in the nuclear energy sector, including:

• Nuclear Safety Engineers
• Plant Managers
• Regulatory Compliance Officers
• Instrumentation and Control Specialists
• Electrical Engineers

Conclusion

In the high-stakes environment of nuclear power generation, safety cannot be compromised. The BS EN IEC 61226:2021 standard provides the necessary guidelines to ensure that all critical systems and functions are properly categorized and classified, enhancing the overall safety and reliability of nuclear power plants. By implementing this standard, facilities can achieve greater operational efficiency, regulatory compliance, and risk management, ultimately contributing to a safer and more sustainable energy future.

BS EN IEC 61226:2021

This standard BS EN IEC 61226:2021 Nuclear power plants. Instrumentation, control and electrical power systems important to safety. Categorization of functions and classification of systems is classified in these ICS categories:

• 17.220.99 Other standards related to electricity and magnetism
• 29.020 Electrical engineering in general
• 27.120.20 Nuclear power plants. Safety

IEC 61226:2020 establishes, for nuclear power plants , a method of assignment of the functions specified for the plant into categories according to their importance to safety. Subsequent classification of the I&C and electrical power systems performing or supporting these functions, based on the assigned category, then determines relevant design criteria.
The design criteria, when applied, ensure the achievement of each function in accordance to its importance to safety. In this document, the criteria are those of functionality, reliability, performance, environmental qualification (e.g. seismic) and quality assurance (QA).
This edition includes the following significant technical changes with respect to the previous edition:
- to align on IAEA requirements, recommendations and terminology, particularly to take into account the replacement of NS-R-1 by SSR 2/1 and publication of SSG 30;
- to extend the scope to electrical power systems;
- to move the detailed requirements applying to functions and I&C systems to a normative annex, which will be removed after updating IEC 61513.