[Antennas] surge protection on outside 12 volt DC wiring?

Wed Nov 11 14:06:34 EST 2020

I need to install a pair of conductors going outside to a 12 volt 
reversing DC motor at my antenna about 75' away. The motor is reversed 
by switching the polarity to it.
Plus, I need to protect 5- DC antenna relays about the same distance, 
outside.
I have a good single point ground just outside the cable entrance to my 
shack.
Looking to expand my thoughts on how to best protect the DC motor, DC 
relays and shack entrance, from induced nearby lightning surges.
Anyone else with experience in this subject?
Your attention is appreciated.
Ray, W4BYG
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