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Utility Scale PV Combiner Box with Dual DC Disconnect

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cjcoronel21

Electrical
Jan 27, 2014
11
0
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US
Hey everyone,

I was wondering if there is a manufacture who makes utility scaled PV combiner Boxes with a DC disconnect switch that separates both the positive and negative feeders. My thought is that once the hot lead is disconnected then there should not be a positive voltage at the inverter terminals therefore no potential for arc. However, I am doing my due-diligence and wondering if there will also be a benefit to disconnect the negative lead.
 
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