unused cable grounding
I have a pair of 2/0 cables running underground from my solar room to an outbuilding about 60 feet away. They used to attach to the batteries to bring 12v for lighting in the outbuilding. Over the years my solar has evolved to 48 volts and I no longer use the cables. Then can't be removed. They are unattached and open ended in the solar room, but still connected to an unused circuit breaker panel in the outbuilding. I would imagine these wires would present a possible problem if we were to be struck by lightning. Should I detach both ends and ground both the unused wires in the Solar room for lighting protection? Thanks.
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