You must protect cables located within 6 of the attic access hole.
Running wiring in the attic.
Find your attic access.
A where run across the top of floor joists where run across the top of floor joists or within 2 1 m 7 ft of floor or floor joists across the face of rafters or studding in attics and roof spaces that are accessible the cable shall be protected by substantial guard strips that are at least as high as the cable.
If the wires are within 7 of the attic access hole or along any attic flooring you ll need.
Measure the distance between the two sites you want to run wire between and make sure you will have enough wire.
How to run wire through an attic step 1.
Also it may not be as simple as stapling the wiring to the structural members.
To run the wires inside rigid conduit you ll need a hacksaw a pipe bender capable of bending 1 2 in.
Rigid conduit with an outside diameter of 3 4 in and a fish tape long enough to reach through the buried pipe.
Attics with permanent access stairs ladder.
Cables shall not be run on or across.
Ultimately for type nm romex this is directly referenced in the 2011 nec 334 23 but only points you to comply with 320 23 type ac as does 330 23 type mc.
Raul no this is not a standard practice and is most likely the result of improper installation of electrical attic wiring.
The lower faces of rafters in attic or roof spaces where the vertical distance.
If you drill holes in the joists and run wire through those holes you ll be disturbing the insulation.
Concealed knob and tube wiring shall not be used in the following.
A the upper faces of ceiling joists.
Yes this should be corrected and it would be good to have the wiring and all the circuit connections inspected as well.
Between the joists and the rafters exceeds 1 m i so where the cable is running under the rafters the rafters have to be 1m above the joists.
You must protect all cables running perpendicular and atop the joists.
This is usually a moveable piece of drywall or plywood that covers a rectangular hole in.