BS EN IEC 63046:2021 - Nuclear Power Plants Electrical Power System: General Requirements

In the ever-evolving world of nuclear energy, ensuring the safety, reliability, and efficiency of nuclear power plants is paramount. The BS EN IEC 63046:2021 standard is a comprehensive guide that sets forth the general requirements for electrical power systems in nuclear power plants. Released on June 4, 2021, this standard is an essential resource for professionals in the nuclear energy sector, providing a robust framework for the design, implementation, and maintenance of electrical power systems.

Key Features of BS EN IEC 63046:2021

• Standard Number: BS EN IEC 63046:2021
• Pages: 94
• Release Date: June 4, 2021
• ISBN: 978 0 539 16604 0
• Status: Standard

Comprehensive Coverage

This standard spans 94 pages, offering an in-depth exploration of the electrical power systems that are integral to the operation of nuclear power plants. It provides detailed guidelines and requirements that ensure these systems are designed and maintained to the highest standards of safety and efficiency.

Why BS EN IEC 63046:2021 is Essential

The electrical power system in a nuclear power plant is a critical component that supports the safe and efficient operation of the facility. This standard addresses the unique challenges and requirements of these systems, ensuring they meet the rigorous demands of the nuclear industry. By adhering to the guidelines set forth in BS EN IEC 63046:2021, nuclear power plants can achieve optimal performance and safety.

Ensuring Safety and Reliability

Safety is the foremost concern in any nuclear power plant, and the electrical power system plays a crucial role in maintaining this safety. The BS EN IEC 63046:2021 standard provides a framework for ensuring that these systems are reliable and capable of supporting the plant's operations under all conditions. This includes guidelines for system design, testing, and maintenance, all aimed at minimizing the risk of failures and ensuring continuous operation.

Enhancing Efficiency

Efficiency is another critical aspect of nuclear power plant operations. The BS EN IEC 63046:2021 standard outlines best practices for optimizing the performance of electrical power systems, helping to reduce energy consumption and operational costs. By following these guidelines, nuclear power plants can achieve greater efficiency, contributing to more sustainable and cost-effective energy production.

Who Should Use This Standard?

The BS EN IEC 63046:2021 standard is an invaluable resource for a wide range of professionals in the nuclear energy sector, including:

• Electrical engineers and designers involved in the development of nuclear power plant systems
• Maintenance and operations personnel responsible for the upkeep of electrical power systems
• Regulatory bodies and safety inspectors overseeing nuclear power plant operations
• Consultants and advisors providing expertise in nuclear energy projects

Conclusion

The BS EN IEC 63046:2021 standard is a vital tool for ensuring the safety, reliability, and efficiency of electrical power systems in nuclear power plants. With its comprehensive guidelines and requirements, this standard supports the development and maintenance of systems that meet the highest standards of performance and safety. Whether you are an engineer, a maintenance professional, or a regulatory body, this standard is an essential resource for navigating the complexities of nuclear power plant operations.

Invest in the future of nuclear energy by embracing the guidelines set forth in BS EN IEC 63046:2021. Ensure your nuclear power plant's electrical power system is designed and maintained to the highest standards, supporting safe, efficient, and sustainable energy production.

BS EN IEC 63046:2021

This standard BS EN IEC 63046:2021 Nuclear power plants. Electrical power system. General requirements is classified in these ICS categories:

• 27.120.20 Nuclear power plants. Safety
• 27.120.01 Nuclear energy in general

1.1 General

This document:

• provides requirements and recommendations for the overall Electrical Power System. In particular, it covers interruptible and uninterruptible Electrical Power Systems including the systems supplying the I&C systems;

• is consistent and coherent with IEC 61513. Like IEC 61513, this document also highlights the need for complete and precise requirements, derived from the plant safety goals. Those requirements are prerequisites for generating the comprehensive requirements for the overall Electrical Power System architecture, and for the electrical power supply subsystems;

• has to be considered in conjunction with and at the same level as IEC 61513. These two standards provide a complete framework establishing general requirements for instrumentation, control, and Electrical Power System for Nuclear Power Plants.

This document establishes:

• the high level specification and requirement to implement a suitable Electrical Power System in a NPP that supports reactor systems important to safety. It also enables electrical energy production providing the transmission grid with active and reactive power and electro-mechanical inertia;

• the relationships between:

  • the plant safety requirements and the architecture of the overall Electrical Power System and its sub-systems (see Figure 1) including:

    1. the contribution to the plant Defence in Depth;

    2. the independency and redundancy provisions;

  • the electrical requirements and the architecture of the Electrical Power System and its sub-systems;

  • the functional requirements and the architecture of the Electrical Power System and its sub-systems;

  • the requirements associated with the maintenance strategy and the architecture of the Electrical Power System and its sub-systems;

• the design of Electrical power sub-systems (e.g. interruptible and uninterruptible);

• the requirements for supporting systems of Electrical Power System (HVAC, I&C, etc.);

• the Electrical Power System life-cycle framework.

This document does not cover the specification of:

• I&C systems;

• the transmission lines connecting to substations outside the NPP;

• electrical equipment requirements already defined in the industrial IEC standards;

• electrical power for security systems (e.g., fences, surveillance systems, entrance control)

• lighting and socket facility.

This document does not consider power production requirements

NOTE Figure 1 is based on IAEA SSG34:2016, Figure 3, with adaptation regarding the scope.

This figure provides only an example. Various possible arrangements of buses, loads, generators and interconnections would meet the requirements of SSR-2/1. Furthermore, many elements of the plant system, such as buses that are not important to safety and direct current power systems, are not shown. This figure is intended only to represent the relationship between the elements of the plant power systems that are within the safety classification and the preferred power supply. The elements of the preferred power supply that are not within the bounds of the important to safety power supply are outside the scope of the plant safety classification. The system elements included in the important to safety power supplies will differ according to plant design and the classification methods applied in different States. The classification methods are held by IEC 61226. Some plant designs may not require safety standby power sources. All nuclear power plants are expected to have safety direct current power supplies.