Foam? -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of= John Gardner Sent: Wednesday, 16 August 2017 7:42 AM To: Microcontroller discussion list - Public. Subject: Re: [EE] Precautions for long run 400 VDC cabling? One can see some point in emergency covers for hefty panels... ... On 8/15/17, Dwayne Reid wrote: > At 12:17 AM 8/15/2017, Sean Breheny wrote: >>I echo Russell's warning. I'd reckon that the solar array isn't as bad=20 >>as a battery bank since it cannot source the current that batteries=20 >>can > > The problem is that the output voltage of a solar array can rise=20 > significantly when the load is removed. Your breaking voltage of 400V=20 > suddenly doubles. Ouch! > > In other words, an arc from the output of a large, high-voltage solar=20 > array can be worse than that of the battery bank, at least in terms of=20 > quenching the arc. > > dwayne > > > -- > Dwayne Reid > Trinity Electronics Systems Ltd Edmonton, AB, CANADA > 780-489-3199 voice 780-487-6397 fax 888-489-3199 Toll Free > www.trinity-electronics.com > Custom Electronics Design and Manufacturing > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive=20 > View/change your membership options at=20 > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/chang= e your membership options at http://mailman.mit.edu/mailman/listinfo/piclis= t --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .