Article 320 Armored Cable Type AC

I. General

320.1	Scope
320.2	Definition

This type of cable is composed of insulated conductors in a flexible metal enclosure. Refer to 320.100.

II. Installation

320.10

Uses Permitted

It can be used exposed or concealed and in cable trays where so identified. It is permitted in dry locations and in plaster finish on brick or other masonry except in damp or wet locations. It can also be used in the voids of masonry block or tile walls when the walls are not exposed or subject to excessive moisture or dampness. There is a fine print note that this is not an all-inclusive list.

320.12

Uses Not Permitted

It cannot be used if subject to physical damage, in damp or wet locations, embedded in plaster finish on brick or any other masonry in damp or wet locations, in air voids of masonry block or tile when the walls are exposed to excessive dampness or moisture, or where it is exposed to corrosive vapors or fumes.

320.15	Exposed Work
320.17	Through or Parallel to Framing Members
320.23	In Accessible Attics
320.24	Bending Radius

They must be made so that the cable will not be damaged and the radius of the curve of the inner edge cannot be less than five times the diameter of the cable.

320.30	Securing and Supporting
320.40	Boxes and Fittings
320.80	Ampacity

 

III. Construction Specifications

320.100

Construction

The cable consists of insulated conductors enclosed in a flexible metal tape armor with a copper or aluminum bonding strip inside and in contact with the armor.

320.104	Conductors
320.108	Grounding
320.120	Marking