I use 14 gauge stranded for track power and drops. I used 18 gauge solid for everything else except hinged control panels where I use 22 gauge stranded for flexibility. I make interconnects using barrier strips and fork lugs. I buy the 14 gauge stranded from Home Depot. I buy the18 gauge solid from Allied Electronics/Newark based on price. 22 gauge stranded I buy from Amazon. The barrier strips are 28 position from Allied and I cut them to length.
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