Other than that i don t see any problems.
Cable box in an attic.
Junction boxes and splicing electrical wiring.
Install the cable ends in the j box.
Junction box mounting locations there are two options for mounting boxes that are wholly contained within the attic.
Runs of nm cable must be supported at least every 54 inches.
The temperatures here in attics get into the 150 range which is way outside the operating specs for most electronics.
You could create an insulating box and route it to the a c system to keep it cool in the summer.
The nec does not derate lv based on temperature at all.
The ambient for an attic and cabling is not significant.
They also must be secured within 12 inches of an electrical box that includes a cable clamp or within eight inches of a box or enclosure without a cable clamp.
You can attach them to the joist s side surface called the face or to the joist s top surface called the edge.
General cable support.
Buy yourself a 1m box or 2 of cable and a bunch of ends and be done with it.
Since insulation is combustible you must install face plates on all attic junction boxes to prevent contact between bare wires and insulation materials.
Keep in mind that support does not always mean fastening the cable to framing.
Romex and other nm cabling is not derated for an attic 99 of the time in a residential.
Secure the cables in place by turning the.
How id do it if you put your cables to the edge where the apex of the roof meet the ceiling so you basically end up with your wireing loom at the edge of your attic then clip your cables along the ceiling joists 50mm from the plaster board then its clear of insulation and if you need to lay a floor you can but do try to avoide drilling hole through the joists as you will not meet the requirements as youll be less than 50mm from each each edge if the ceiling joists are 75mm.
Once sure where in the wall the snake is trace an old work switch box on the wall at the same height as other boxes in the room.
How to run tv cables in wall spaces from the attic or basement space.
What is the correct and most efficient way to splice 14 2 from 14 3 that is running through my attic.
I would like to add a switch and light to the existing electrical circuit wiring and not have to install more wiring and a new circuit breaker.