BS ISO 21780:2020 - Road Vehicles: Supply Voltage of 48 V

Standard Number: BS ISO 21780:2020

Pages: 54

Released: August 5, 2020

ISBN: 978 0 580 95915 8

Status: Standard

Overview

The BS ISO 21780:2020 standard is a comprehensive guide that outlines the electrical requirements and tests for road vehicles operating with a supply voltage of 48 V. As the automotive industry continues to evolve, the demand for higher efficiency and performance in vehicle electrical systems has led to the adoption of 48 V systems. This standard is essential for manufacturers, engineers, and technicians who are involved in the design, development, and testing of these advanced electrical systems.

Why 48 V Systems?

The transition from traditional 12 V systems to 48 V systems in road vehicles is driven by the need for improved fuel efficiency, reduced emissions, and enhanced performance. The 48 V architecture allows for the integration of advanced technologies such as start-stop systems, electric turbochargers, and regenerative braking, which contribute to a more sustainable and efficient vehicle operation. This standard provides the necessary guidelines to ensure that these systems are safe, reliable, and compliant with international regulations.

Key Features of BS ISO 21780:2020

• Comprehensive Electrical Requirements: The standard details the specific electrical requirements for 48 V systems, ensuring that all components and systems meet the necessary safety and performance criteria.
• Rigorous Testing Protocols: It includes a series of tests designed to evaluate the performance, durability, and safety of 48 V electrical systems under various conditions.
• International Compliance: By adhering to this standard, manufacturers can ensure that their products are compliant with international regulations, facilitating easier market access and acceptance.
• Guidance for Innovation: The standard supports innovation by providing a framework for the development of new technologies and systems that leverage the benefits of 48 V architectures.

Benefits of Implementing BS ISO 21780:2020

Implementing the BS ISO 21780:2020 standard offers numerous benefits to automotive manufacturers and suppliers:

• Enhanced Vehicle Performance: By utilizing 48 V systems, vehicles can achieve better performance metrics, including increased power output and improved fuel efficiency.
• Reduced Environmental Impact: The adoption of 48 V systems contributes to lower emissions and a smaller carbon footprint, aligning with global sustainability goals.
• Improved Safety and Reliability: The standard ensures that all electrical components and systems are tested for safety and reliability, reducing the risk of failures and accidents.
• Competitive Advantage: Companies that implement this standard can gain a competitive edge by offering advanced, compliant, and efficient vehicle technologies.

Who Should Use This Standard?

The BS ISO 21780:2020 standard is designed for a wide range of professionals in the automotive industry, including:

• Automotive Engineers: Engineers involved in the design and development of vehicle electrical systems will find this standard invaluable for ensuring compliance and performance.
• Manufacturers: Automotive manufacturers can use this standard to guide the production of vehicles with 48 V systems, ensuring they meet international standards.
• Testing Laboratories: Laboratories responsible for testing vehicle components can use the standard to develop and implement appropriate testing protocols.
• Regulatory Bodies: Organizations involved in setting and enforcing automotive standards can use this document as a reference for compliance and safety requirements.

Conclusion

The BS ISO 21780:2020 standard is a critical resource for the automotive industry as it transitions to more efficient and sustainable 48 V electrical systems. By providing detailed requirements and testing protocols, this standard ensures that vehicles are safe, reliable, and compliant with international regulations. Whether you are an engineer, manufacturer, or regulatory body, this standard is an essential tool for navigating the complexities of modern vehicle electrical systems.

BS ISO 21780:2020

This standard BS ISO 21780:2020 Road vehicles. Supply voltage of 48 V. Electrical requirements and tests is classified in these ICS categories:

• 43.040.10 Electrical and electronic equipment

This document covers requirements and tests for the electric and electronic components in road vehicles equipped with an electrical system operating at a nominal voltage of 48 V DC.

This includes the following:

1. general requirements on 48 V DC electrical systems;

2. voltage ranges;

3. slow voltage transients and fluctuations (not including EMC).