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by mr337 861 days ago
The only thing I can think of is the high voltage. I don't mind working with 220v but anything higher I tend to shy away with. I think some of the voltage systems in the battery packs can peak at 800v with most of them between 400v and 600v.
2 comments
ActorNightly 860 days ago
The voltages are not going to be high enough to cause things like arcing through air. Basic precaution is necessary.

The idea is not even that you yourself are going to replace it, its more for shops with equipment and skills to order individual cells, put together battery packs, and then just replace them in cars without worrying about compatibility.

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beachy 860 days ago
The EV is also DC, significantly more dangerous than the AC at the same voltage.
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Glawen 860 days ago
Well, no, AC is more lethal, also it contracts the muscles more easily.

The high voltage ranges are different between AC and DC, with AC being lower than DC range due to the higher risk.

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beachy 860 days ago
My understanding is that DC currents are more dangerous as the effect is continuous. Whereas there is some electrician humour that at least with AC you have 50 chances per second to pull away (Americans get 60 chances per second)
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junon 860 days ago
It's not so straightforward. Volts, amps, and frequency (in the case of AC) all play a factor in lethality of electricity.
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ericbarrett 860 days ago
I've been shocked by 300V DC @ 500mA and I'll take the equivalent AC any day. Obviously both can kill you, but the DC was far more painful and instantly gave me 3rd degree burns. Also made me ululate some kind of tone I didn't even know the human throat could emit.
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natpalmer1776 860 days ago
The consensus I've heard from a few family members who work in airport maintenance is that HVDC will make you wish you were dead, while HVAC will make you dead dead.
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aitchnyu 860 days ago
Even in college, I was taught AC passes on your skin away from your heart and is therefore safer at the same voltage. Is this a myth?
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petre 860 days ago
It's complicated and likely not at all relevant at 50 or 60 Hz frequencies. You want the sqrt(2p/ωμ) formula if you're curious.

https://en.wikipedia.org/wiki/Skin_effect

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SomeoneFromCA 860 days ago
keep in mind that peak voltage of AC is 1.4 of nominal. So keeping hat in mind, range is about same.
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