BS EN IEC 61439-2:2021 - Low-voltage Switchgear and Controlgear Assemblies

Introducing the BS EN IEC 61439-2:2021, the definitive standard for low-voltage switchgear and controlgear assemblies. This comprehensive document is essential for professionals in the electrical engineering and manufacturing industries, providing the latest guidelines and specifications to ensure safety, reliability, and efficiency in power switchgear and controlgear assemblies.

Key Features

• Standard Number: BS EN IEC 61439-2:2021
• Pages: 62
• Release Date: May 24, 2021
• ISBN: 978 0 580 86719 4
• Status: Standard

Overview

The BS EN IEC 61439-2:2021 standard is a crucial document for anyone involved in the design, assembly, and maintenance of low-voltage switchgear and controlgear assemblies. It provides detailed requirements and guidelines to ensure that these assemblies meet the necessary safety and performance standards. This standard is part of the IEC 61439 series, which is recognized globally for its comprehensive approach to electrical safety and performance.

Why Choose BS EN IEC 61439-2:2021?

Choosing the BS EN IEC 61439-2:2021 standard means opting for a document that is at the forefront of electrical safety and innovation. Here are some reasons why this standard is indispensable:

• Comprehensive Coverage: With 62 pages of detailed information, this standard covers all aspects of low-voltage switchgear and controlgear assemblies, ensuring that you have all the information you need to comply with the latest regulations.
• Up-to-Date Information: Released in May 2021, this standard reflects the most current practices and technological advancements in the field.
• Global Recognition: As part of the IEC 61439 series, this standard is recognized and respected worldwide, making it a valuable asset for international projects and collaborations.

Applications

The BS EN IEC 61439-2:2021 standard is applicable to a wide range of industries and applications, including:

• Industrial Manufacturing: Ensures that switchgear and controlgear assemblies used in manufacturing processes are safe and efficient.
• Building and Construction: Provides guidelines for the installation and maintenance of electrical assemblies in commercial and residential buildings.
• Energy and Utilities: Essential for the design and operation of electrical systems in power generation and distribution.

Benefits

Implementing the BS EN IEC 61439-2:2021 standard offers numerous benefits, including:

• Enhanced Safety: By adhering to the guidelines set out in this standard, you can significantly reduce the risk of electrical hazards and ensure the safety of personnel and equipment.
• Improved Reliability: The standard provides a framework for designing and assembling switchgear and controlgear that is reliable and capable of withstanding the demands of modern electrical systems.
• Regulatory Compliance: Compliance with this standard ensures that your assemblies meet the necessary legal and regulatory requirements, avoiding potential fines and legal issues.

Conclusion

The BS EN IEC 61439-2:2021 standard is an essential resource for anyone involved in the electrical industry. Its comprehensive guidelines and up-to-date information make it an invaluable tool for ensuring the safety, reliability, and efficiency of low-voltage switchgear and controlgear assemblies. By choosing this standard, you are investing in the future of your projects and the safety of your personnel.

BS EN IEC 61439-2:2021

This standard BS EN IEC 61439-2:2021 Low-voltage switchgear and controlgear assemblies is classified in these ICS categories:

• 29.130.20 Low voltage switchgear and controlgear

IEC 61439-2:2020 defines the specific requirements for the power switchgear and controlgear assembly (abbreviated ‘PSC-assembly’ throughout this document see 3.1.101) as follows:

• assemblies for which the rated voltage does not exceed 1? 000 V AC or 1? 500 V DC;
• assemblies designed for a nominal frequency of the incoming supply or supplies not exceeding 1 ?000 Hz;

NOTE 1?Frequencies above 1 kHz are considered as high frequencies, see also IEC 60664-1:2007, 5.3.3.2.5 to take into account additional constraints to insulation coordination.

• assemblies intended for indoor and outdoor applications;
• stationary or movable assemblies with or without enclosures;
• assemblies intended for use in connection with the generation, transmission, distribution and conversion of electrical energy, and for the control of equipment consuming electrical energy and for associated data processing;
• assemblies designed for use under special service conditions, for example in ships and in rail vehicles, provided that the other relevant specific requirements are complied with;

NOTE 2?Supplementary requirements for assemblies in ships are covered by IEC 60092-302-2.
This third edition cancels and replaces the second edition published in 2011. It constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:

1. addition of Annexes DD, EE and FF for assemblies for use in photovoltaic installation;
2. clarification of the requirements for forms of internal separation and the addition of the requirement, when the form of separation is higher than 1, all parts within the functional unit compartment that remain live when the functional unit is switched off shall be protected to at least IPXXB;
3. alignment with the structure of IEC 61439-1:2020;
4. addition of temperature-rise verification for; (i) temperature-rise verification of assemblies with natural cooling and circuits rated above 1 600 A by a combination of comparison with a reference design and calculation, and; (ii) temperature-rise verification of assemblies with active cooling and rated currents up to 1 600 A.
5. consideration of IP with active cooling.