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

[Ray]

I've used it a few times for battery and inverter cables and it works 
just fine.  It just has a thicker jacket so when you heat shrink it at 
the lugs, it looks funny.  Not a serious problem, just get a higher 
ratio heat shrink like 3 to 1, and it should be fine.

Ray Walters
Remote Solar
303 505-8760

On 8/4/20 12:32 PM, Kirk Herander wrote:
> Thanks Ray,
> I am going to use the 2kva DLO cable. It is dual rated as RHW-2, which 
> is what inverter OEM recommends. AWC warehouse is also close by in PA. 
> also.
>>
>> On 8/1/2020 8:16:16 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
>>
>> 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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