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 |
Article 90 Introduction
General
Wiring and Protection
Wiring Methods and Materials
Equipment for General Use
Special Occupancies
Special Equipment
Special Conditions
Tables
Annex C. Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size
Annex D. Examples
Annex E. Types of Construction