Hybrid and Electric Vehicle Safety Systems Information Report
This information report provides an overview of a typical high voltage electric propulsion vehicle (xEV) and the associated on-board safety systems typically employed by OEM’s to protect these high voltage systems. The report aims to improve public confidence in xEV safety systems and dispel public misconceptions about the likelihood of being shocked by the high voltage system, even when the vehicle has been damaged. The report will document select high voltage systems used for xEV’s and describe safety systems employed to prevent exposure to the high voltage systems.
This report for first and second responders is intended to address concerns about electric vehicle propulsion technology. These topics include the possibility of human contact with high voltage, potential fire hazards, and protective features. Each of the Original Equipment Manufacturer (OEM) designs incorporate various safety features meant to address each of these concerns and this report provides general descriptions for some of the systems and practices. While many of these safety features are common throughout the industry, there are wide variations and this report is not all inclusive. This document continues to reflect the major methods used by vehicle OEMs to help ensure safety of emergency responders.
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High voltage systems
Safety regulations and standards
Energy storage systems
Hybrid electric vehicles
Fuel cell vehicles
Also known as: SAE J 2990/2
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