What is BS EN 61439-2:2018+A1:2020?

BS EN 61439-2:2018+A1:2020 is a technical standard that specifies requirements for low-voltage switchgear and controlgear assemblies. It is part of a series of standards developed by the International Electrotechnical Commission (IEC) in collaboration with the European Committee for Electrotechnical Standardization (CENELEC). This article will provide an of the key aspects of BS EN 61439-2:2018+A1:2020 and its importance in ensuring the safety and functionality of electrical installations.

Scope and Purpose

The main purpose of BS EN 61439-2:2018+A1:2020 is to define the specific requirements for assemblies manufactured and verified according to this standard. The scope of the standard covers low-voltage switchgear and controlgear assemblies intended for use in electrical installations with rated voltages up to 1000 V AC and 1500 V DC. These assemblies are used for power distribution, motor control, and other essential electrical functions in various industries, including residential, commercial, and industrial sectors.

Major Changes and Updates

One of the significant changes introduced in BS EN 61439-2:2018+A1:2020 is the introduction of new symbols for marking switchgear and controlgear assemblies. These symbols help users quickly identify various aspects of the assembly, such as the rated voltage, frequency, incoming and outgoing circuits, and more. Another notable update is the inclusion of additional requirements for temperature rise limits, fault current withstand capabilities, and clearances/creepage distances, contributing to improved safety and performance of the assemblies.

BS EN 61439-2:2018+A1:2020 also emphasizes the importance of proper documentation and information provided with switchgear and controlgear assemblies. Manufacturers are required to provide comprehensive technical information, including details on assembly design, construction, test results, maintenance guidelines, and more. This ensures that users have all the necessary information to install, operate, and maintain the assemblies correctly.

Compliance and Certification

Compliance with BS EN 61439-2:2018+A1:2020 is essential for manufacturers, suppliers, and end-users alike. Manufacturers must adhere to the standard's requirements during the design, production, and verification of switchgear and controlgear assemblies. Suppliers need to ensure that the products they offer comply with the standard to guarantee their safety and reliability. End-users should specify the use of compliant assemblies in their electrical installations to ensure optimal performance and prevent potential hazards.

In conclusion, BS EN 61439-2:2018+A1:2020 plays a crucial role in ensuring the safety, functionality, and performance of low-voltage switchgear and controlgear assemblies. It provides clear requirements for manufacturers, suppliers, and end-users, helping to enhance the overall quality and reliability of electrical installations. Adhering to this standard is vital for anyone involved in the design, production, supply, installation, or operation of these assemblies.