I am planning on having a large number of programmable LED strips powered by a 5v 150W supply I got from Digikey. The LEDs (APA102) will be controlled using an Arduino, which will also be powered by the same supply. The 5v supply will be wired to the LED strips individually. The total number of strips will be 32 (30-60cm lengths) hanging from the ceiling. The longest run of the 5v power line will be 10 meters. The highest current, near the supply, will be 25A.
Do you know what gauge wire I should use for the 5v supply line?
I was thinking of sacrificing a good power cable and having the strips soldered to the cable at various points. Do you think this should work well and safely?
Thanks in advance.