I would not worry as 1000 volt AC has a 1400 volt peak, voltage,

On Sat, Aug 1, 2020, 10:33 AM Kirk Herander <vtso...@icloud.com> wrote:

> I need to spec battery cable for a nominal 850 vdc LFP bank. Several
> brands of power cable list their rating at a dual 600/1000v. it is my
> understanding that to be listed in this manner, the cable must pass a test
> apply of over 600v for a short period  without breakdown. But under normal
> operation IMO, the voltage is not to exceed 600v. And this test is done
> with AC voltage, not DC.
>
> "*UL 1277: Power and Control Tray Cable*
>
> UL 1277, the standard for electrical power and control tray cable, was
> recently updated, allowing manufacturers with UL approved tray cable to
> market their product as 600V/1kV rated. To be dual rated, products must use
> a recognized 1kV rated conductor and pass a higher voltage AC Hipot test on
> the completed cable. This test requires each insulated conductor in
> finished cable to withstand a specified voltage range for one minute
> without breakdown. If a product passes the AC Hipot test, it is suitable
> for 1kV use."
>
> Am I getting this right? And If so, one should not use this 600/1000v wire
> if normal operating voltage is above 600v as is my case? Proper rating
> should be dual 1000/2000v like PV wire?
>
> What do you experienced high voltage battery gurus use in my application?
> Thanks.
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