BS EN IEC 60077-4:2019 Railway Applications: Electric Equipment for Rolling Stock - Electrotechnical Components: Rules for AC Circuit-Breakers

Welcome to the comprehensive guide on the BS EN IEC 60077-4:2019 standard, a crucial document for professionals in the railway industry. This standard is an essential resource for understanding the rules and regulations governing AC circuit-breakers used in electric equipment for rolling stock. Released on January 7, 2020, this document is a must-have for ensuring compliance and safety in railway applications.

Overview of the Standard

The BS EN IEC 60077-4:2019 standard provides detailed guidelines and rules for the design, testing, and application of AC circuit-breakers in railway rolling stock. It is part of a series of standards that address the electrotechnical components used in railway applications, ensuring that these components meet the necessary safety and performance criteria.

Key Features

• Standard Number: BS EN IEC 60077-4:2019
• Pages: 36
• Release Date: January 7, 2020
• ISBN: 978 0 580 99186 8
• Status: Standard

Importance of AC Circuit-Breakers in Railway Applications

AC circuit-breakers play a vital role in the safety and efficiency of railway systems. They are responsible for interrupting fault currents and protecting electrical circuits from damage caused by overloads or short circuits. The BS EN IEC 60077-4:2019 standard ensures that these components are designed and tested to withstand the demanding conditions of railway environments.

Why Compliance Matters

Compliance with the BS EN IEC 60077-4:2019 standard is crucial for manufacturers and operators of railway equipment. Adhering to these guidelines helps prevent equipment failure, reduces maintenance costs, and enhances the overall safety of railway operations. By following the standard, companies can ensure that their products meet international safety and performance benchmarks.

Detailed Content of the Standard

The BS EN IEC 60077-4:2019 standard is a comprehensive document that covers various aspects of AC circuit-breakers for railway applications. It includes:

• Design Requirements: Specifications for the design and construction of AC circuit-breakers to ensure reliability and safety.
• Testing Procedures: Detailed testing methods to verify the performance and durability of circuit-breakers under different conditions.
• Application Guidelines: Recommendations for the proper installation and use of circuit-breakers in railway systems.
• Safety Considerations: Essential safety measures to protect both equipment and personnel.

Who Should Use This Standard?

The BS EN IEC 60077-4:2019 standard is designed for a wide range of professionals in the railway industry, including:

• Manufacturers: Companies involved in the production of railway equipment and components.
• Engineers: Professionals responsible for the design and maintenance of railway systems.
• Safety Inspectors: Individuals tasked with ensuring compliance with safety standards and regulations.
• Regulatory Bodies: Organizations that oversee the implementation of safety and performance standards in the railway sector.

Benefits of Implementing the Standard

Implementing the BS EN IEC 60077-4:2019 standard offers numerous benefits, including:

• Enhanced Safety: Reduces the risk of accidents and equipment failure, ensuring a safer environment for passengers and staff.
• Improved Reliability: Ensures that circuit-breakers perform consistently under various conditions, minimizing downtime and maintenance needs.
• Cost Efficiency: By preventing equipment damage and reducing maintenance requirements, the standard helps lower operational costs.
• Global Recognition: Compliance with international standards enhances a company's reputation and facilitates access to global markets.

Conclusion

The BS EN IEC 60077-4:2019 standard is an indispensable resource for anyone involved in the railway industry. By providing clear guidelines for the design, testing, and application of AC circuit-breakers, it ensures that these critical components meet the highest safety and performance standards. Whether you are a manufacturer, engineer, or safety inspector, this standard is essential for maintaining the integrity and reliability of railway systems.

Invest in the BS EN IEC 60077-4:2019 standard today to ensure your railway applications are safe, efficient, and compliant with international regulations.

BS EN IEC 60077-4:2019

This standard BS EN IEC 60077-4:2019 Railway applications. Electric equipment for rolling stock is classified in these ICS categories:

• 45.060.01 Railway rolling stock in general

IEC 60077-4:2019 is available as IEC 60077-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60077-4:2019 gives rules for AC circuit-breakers, the main contacts of which are connected to AC overhead contact lines; the nominal voltage of these circuits being in accordance with IEC 60850. This document, together with IEC 60077-2, states specifically:
a) the characteristics of the circuit-breakers;
b) the service conditions with which circuit-breakers comply with reference to:
- operation and behaviour in normal service;
- operation and behaviour in short-circuit;
- dielectric properties;
c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests
d). the information to be marked on, or given with the circuit-breaker.
This second edition cancels and replaces the first edition, issued in 2003. This edition includes the following main technical changes with regard to the previous edition:
a) standard values of transient recovery voltages and test procedure are reviewed;
b) procedure of verification of temperature rise is changed;
c) air-tightness test as type test, insulation resistance measurement are added