What is BS EN 61439-1:2016?

Introduction

BS EN 61439-1:2016 is a technical standard that provides guidelines for the design, construction, and verification of low-voltage switchgear and controlgear assemblies. It ensures safety, performance, reliability, and compatibility of electrical equipment used in industrial and commercial applications.

Key Components and Requirements

The standard outlines several key components and requirements for switchgear and controlgear assemblies:

1. Design Verification - Manufacturers need to demonstrate that their equipment meets the specified requirements through design verification and testing. This includes aspects such as temperature rise limits, dielectric properties, and protection against electric shock.

2. Constructional Features - The equipment must be constructed in a way that ensures safe and reliable operation. This includes features such as insulation, protection against dust and water ingress, mechanical strength, and clear labelling of components.

3. Internal Separation - Switchgear and controlgear assemblies must have clear internal separation to prevent any risk of electric shock or short-circuiting. This involves adequate spacing between functional units, barriers, and insulating materials.

4. Rated Current and Short-Circuit Withstand Strength - The equipment must be designed to handle the specified rated current without any degradation in performance. Additionally, it should possess sufficient short-circuit withstand strength to protect against faults.

Benefits and Compliance

Adhering to BS EN 61439-1:2016 brings several benefits:

1. Safety - By following the standard's guidelines, manufacturers can ensure the safety of their electrical equipment, minimizing the risk of accidents and injuries.

2. Performance and Reliability - The standard sets criteria for performance and reliability, ensuring that the equipment operates efficiently under normal and abnormal conditions.

3. Compatibility - Switchgear and controlgear assemblies designed according to this standard are compatible with other equipment, enabling seamless integration into power distribution systems.

4. Compliance and Market Access - Compliance with BS EN 61439-1:2016 is essential for manufacturers to gain market access in many countries. It helps them meet regulatory requirements and demonstrate the quality of their products.

In conclusion, BS EN 61439-1:2016 provides clear guidelines for the design, construction, and verification of low-voltage switchgear and controlgear assemblies. By adhering to this standard, manufacturers can ensure safety, performance, reliability, and compatibility of their equipment, while also gaining market access.