I need to install some 12VDC infrared flood lights on or around the outside of the house to illuminate the exterior for security cameras. These lights can pull 2-3A each and need to be wired safely. I'm struggling to find code that dictates the safe installation of low voltage lighting. The best way for me to install these is to have a 12V power supply in the basement (probably just a computer power supply) and pull 2-conductor cables up from there. Some runs will involve pulling the wire exposed outdoors and other runs up through walls. This is all very similar to pulling coax. Without any further guidance I would just plan to select reasonable cable for my load and put small fuses on each run to protect the cable from overload. But what does code say???

First off Merry Christmas all! I hope this year has been as good to you as it has to me! I'm working to convert an unused company basement into a server room with proper ventilation and electrical apparatuses. I suspect I will definitely need to hire a licensed electrician to complete the job since I'm out of my depth but I would at least like to get some opinions on costs/what equipment I would need to get the job done in a safe and practical manner. Right now I am trying to provide for approximately 20,000 - 25,000 additional watts of power being pulled from a fairly large (1,200 square foot room). Ideally all of the servers would be located in extremely close proximity. I have no remaining spaces on a breaker box so I know I will need a new one of those (but don't know anything about them and would love some guidance). In addition I will need 10 (ten) receptacles with 4 outlets each. 40 outlets total. Each of these receptacles will be drawing up to 2,000 watts each (on average 1,500w). I have limited electrical knowledge and no nothing about what amperage I would need. Anyways, I hope that all makes sense and I would be happy to clarify. I appreciate any advice/help you can give! Best Wishes