Carlon Structured Cable Management Systems Handbook - Low Res - Manual (Page 46)

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770.5 Types. Optical fiber cables can be grouped into
three types.
(A) Nonconductive. These cables contain no metallic
members and no other electrically conductive
materials.
(B) Conductive. These cables contain noncurrent-
carrying conductive members such as metallic
strength members, metallic vapor barriers, and
metallic armor or sheath.
(C) Composite. These cables contain optical fibers
and current-carrying electrical conductors, and
shall be permitted to contain noncurrent-carrying
conductive members such as metallic strength
members and metallic vapor barriers.Composite
optical fiber cables shall be classified as electrical
cables in accordance with the type of electrical
conductors.
770.6 Raceways for Optical Fiber Cables. The
raceway shall be of a type permitted in Chapter 3 and
installed in accordance with Chapter 3.
Exception: Listed nonmetallic optical fiber raceway
identified as general purpose, riser, or plenum
optical fiber raceway in accordance with Section
770.51 and installed in accordance with Sections
362.24 through 362.56, where the requirements
applicable to electrical nonmetallic tubing shall
apply. Unlisted underground or outside plant
construction plastic innerduct shall be terminated
at the point of entrance.
FPN: For information on listing requirements for
optical fiber raceways, see Standard for Optical Fiber
Raceways, UL 2024.
Where optical fiber cables are installed within the race-
way without current-carrying conductors, the raceway
fill tables of Chapter 3 and Chapter 9 shall not apply.
Where nonconductive optical fiber cables are installed
with electric conductors in a raceway, the raceway fill
tables of Chapter 3 and Chapter 9 shall apply.
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