Redundant safety systems in EVs primarily aim to prevent which hazards?

• A. Shock and fire hazards
• B. Punctures
• C. Battery swelling
• D. EMI

Answer: (A)

Redundant safety systems are designed to keep people safe from the high-voltage energy in an EV and to prevent a fault from turning into a dangerous fire. By layering protections, the system can still shut off power, isolate the battery pack, and limit fault current even if one component fails. The battery management system continuously monitors cell voltages and temperatures, and multiple switches or contactors provide independent paths to disconnect high voltage. If a fault is detected, these layers work together to keep the high-voltage system isolated from occupants and the drive system, reducing the risk of electric shock and preventing conditions that could lead to a thermal runaway and fire. Punctures are a mechanical concern, battery swelling is a symptom of internal issues, and EMI relates to interference control; none are the primary targets of redundancy in this safety context.