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0 pointsHankB992y ago0 comments

> The only downside of higher voltages are increased insulation requirements.

Is there increased risk to emergency responders who might have to cut into a vehicle to rescue occupants? Or is there a possibility that deformation from an accident could result in metal parts charged to 800V? I hope things are designed to prevent that. Perhaps the insulation you mention is armored for the high voltage paths.

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ricardobeat2y ago

400V is already beyond dangerous, raising it won’t kill you any faster. There’s probably decreased risk because of lower current (less heat to melt things).

EVs have a system that disconnects the battery mechanically when a high speed impact happens. I don’t think there have been any electrocution incidents so far?

HankB99OP2y ago

Good. They are designed to prevent injuries to first responders (which are nearly always exposed to some hazard when responding to a vehicle accident.)

I did a search and could find no reports of injury to first responders.

londons_explore2y ago

In general, any EV after an airbags-deployed accident has no high voltages in anywhere except the battery.

(First responders are still advised not to go near high voltage cables, just incase the airbags did not in fact deploy)

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