[RE-wrenches] dual rated 600/1000v cable for HV battery application

[Tump]

My contact at Cobra wire & cable is quite sharp. 215-674-8773 ext. 5000, ltashjian at cobrawire.com <mailto:ltashjian at cobrawire.com> she has been CCed here.
> On Aug 1, 2020, at 8:16 PM, Ray <ray at solarray.com> wrote:
> 
> I would look at Diesel Locomotive Cable  DLO, which is usually dual rated RHH/RHW-2 for us non locomotive folks.  2000 v rated.  Its pretty easy to work with, flexible, but has a 2nd inner liner that gives it the higher volt rating.  Its also usually tinned conductors too.  
> https://www.awcwire.com/productspec.aspx?id=dlo <https://www.awcwire.com/productspec.aspx?id=dlo>
> Ray Walters
> Remote Solar
> 303 505-8760
> On 8/1/20 7:09 AM, Kirk Herander 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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