These requirements cover metal underfloor duct systems designed for use as raceways for the installation of wires and cables in accordance with the National
Electrical Code.
These requirements do not cover rigid or flexible conduit surface raceways, or other products of a similar nature that are covered by individual requirements separate
from these requirements.
A product that contains features, characteristics, components, materials, or systems new or different from those in use when the Standard was developed, and that
involves a risk of fire, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product requirements as determined
necessary to mai ntain the level of safety for the user of the product as originally anticipated by the intent of this Standard.
| Edition : | 10th |
| Number of Pages : | 26 |
| Published : | 11/30/1998 |
