Castrovinci
Member
- Location
- NJ
All,
My experience lies in Industrial so I have a residential question that I a sure comes second nature for a res guy. If someone can provide some in depth explanation in this I would greatly appriciate it. I am trying to get up more on the residential side and never did any house work, went straight to RMC and 480v side of things.
(2008) 334.23
In Accessible Attics. The installation of cable in
accessible attics or roof spaces shall also comply with
320.23 section A and B as below:
(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. Where this space is not accessible by permanent stairs or ladders, protection shall only be required within 1.8 m (6 ft) of the nearest edge of the scuttle hole or attic entrance.
:-?
I am not completly understanding in what they mean by permanent stairs or ladders. Lets say I have stairs that are connected to an attic door like most that springs down. This is permently attached but not permently down. To me this doesnt seem "permenent". Permenent to me would be stairs like 1st and 2nd floor stairs can someone clarify this more??
Now what do most of you do out there when running new circuits in a new house with an attic door and stairs attached to the door (folds down). Do you run your circuits all the way in the corner across the joists? Just stay 7 feet away? Do you always use a runner anyway? Do you drill out each joist and go across?
Thanks for your help!
Mr Castrovinci
NJ
My experience lies in Industrial so I have a residential question that I a sure comes second nature for a res guy. If someone can provide some in depth explanation in this I would greatly appriciate it. I am trying to get up more on the residential side and never did any house work, went straight to RMC and 480v side of things.
(2008) 334.23
In Accessible Attics. The installation of cable in
accessible attics or roof spaces shall also comply with
320.23 section A and B as below:
(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. Where this space is not accessible by permanent stairs or ladders, protection shall only be required within 1.8 m (6 ft) of the nearest edge of the scuttle hole or attic entrance.
:-?
I am not completly understanding in what they mean by permanent stairs or ladders. Lets say I have stairs that are connected to an attic door like most that springs down. This is permently attached but not permently down. To me this doesnt seem "permenent". Permenent to me would be stairs like 1st and 2nd floor stairs can someone clarify this more??
Now what do most of you do out there when running new circuits in a new house with an attic door and stairs attached to the door (folds down). Do you run your circuits all the way in the corner across the joists? Just stay 7 feet away? Do you always use a runner anyway? Do you drill out each joist and go across?
Thanks for your help!
Mr Castrovinci
NJ