Carlon Structured Cable Management Systems Handbook - Low Res - Manual (Page 45)

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Article 770 - Optical Fiber
Cables and Raceways
I. GENERAL
770.1 Scope. The provisions of this article apply to
the installation of optical fiber cables and raceways.
This article does not cover the construction of optical
fiber cables and raceways.
770.2 Definitions
Abandoned Optical Fiber Cable. Installed optical fiber
cable that is not terminated at equipment other than
a connector and not identified for future use with a tag.
Exposed. The circuit is in such a position that, in
case of failure of supports and insulation, contact
with another circuit may result.
FPN: See Article 100 for two other definitions of Exposed.
Optical Fiber Raceway. A raceway designed for enclos-
ing and routing listed optical fiber cables.
Point of Entrance. The point at which the wire
or cable emerges from an external wall, from a
concrete floor slab, or from a rigid metal conduit or
an intermediate metal conduit grounded to an electrode
in accordance with Section 800.40(B).
770.3 Locations and Other Articles. Circuits and
equipment shall comply with (A) and (B). Only those
sections of Article 300 referenced in this article shall
apply to optical fiber cables and raceways.
(A) Spread of Fire or Products of Combustion. The
requirements of 300.21 for electrical installations shall
also apply to installations of optical fiber cable cables
and raceways. The accessible portion of abandoned
optical fiber cables shall not be permitted to remain.
(B) Ducts, Plenums, and Other Air-Handling Spaces.
Section 300.22, where installed in ducts or plenums
or other space used for environmental air.
Exception: As permitted in Section 770.53(A).
770.4 Optical Fiber Cables. Optical fiber cables
transmit light for control, signaling, and communications
through an optical fiber.
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