Running Wires Through A Roof

What does the nec say about running the pv wires through the roof.

Running wires through a roof.

Please refer to these above options as a guide only. Run the cables through the roof access. I am a radio amateur and want to run an antenna cable through my house s tiled roof up by the chimney length of cable run is important and running it down over the tiles over the gutter then up and in through the soffit is too long and there s no way to fix the cable on the 5m run down the tiles. This is the least favorable option as it is not reversible.

Additionally if you ever need to redo the roof it will be a pain to deal with the wires that are now in the way. Drilling through the roof. Running wires through the roof reply 5 on. Better to come out of wall then go up to the roof.

Looking at the pv power systems and the 2005 nec. The best way is to go around the roof not through it. October 02 2013 06 02 35 am you should already have a hole in the roof for 1 1 2 or 2 inch vent pipe for the holding tank and sink drains. As soon as you have a hole you are providing a path for water.

In this video we install a roof mounted wiring box with waterproof cable glands. First drill holes in the side of the box for cables big enough to fit the threaded end of the cable gland make sure to leave room for future cables. I could read the reg s section 2 3 2 from the electricans guide to the reg s to say that if a cable passes through joists it needs to be 50mm from top or bottom or in earther conduit. Suggested practices it says.

I guess i m not passing it through joists it s going over them so i could argue the case it came to it not that i want to argue with the assessor but y know. This option is quite self explanatory where a hole is simply drilled through the outer roof skin and wires passed through a rubber grommet into the roof cavity and fed down into the vehicle. The actual install of recessed lights here https youtu be 5yc8aqnvqqg the long bit is actually used. Thanks all it s a little confoosing.

The code requirement that the pv source and output conductors be kept outside the building until the readily accessible disconnect is reached indicate that these conductors are to be treated in a manner similar to ac service entrance conductors 690.