This document specifies the electrical requirements and test methods for electrical and electronic components in road vehicles with a nominal voltage of 48 V DC. This document applies to the electrical performance of components supplied with a DC 48 V power supply. For energy storage systems, the electrochemical components are not tested. Only the management system is tested as a separate DUT. This document includes general requirements, voltage range, voltage variations and fluctuations for 48 V DC electrical systems, but does not include electromagnetic compatibility (EMC).
Basic Data
Standard ID
GB/T 45120-2024 (GB/T45120-2024)
Description (Translated English)
Road vehicles - Supply voltage of 48 V - Electrical requirements and tests
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
T36
Classification of International Standard
43.040.10
Word Count Estimation
46,472
Date of Issue
2024-12-31
Date of Implementation
2024-12-31
Issuing agency(ies)
State Administration for Market Regulation, China National Standardization Administration
