Carlon Structured Cable Management Systems Handbook - Low Res User Manual

Page 59

installed in cable trays.

(E) Support of Conductors. Raceways shall be used
for their intended purpose. Communications cables or
wires shall not be strapped, taped, or attached by any
means to the exterior of any conduit
or raceway as a means of support.

Exception: Overhead (aerial) spans of communica-
tions cables or wires shall be permitted to be
attached to the exterior of a raceway-type mast
intended for the attachment and support of such
conductors.

800.53 Applications of Listed Communications
Wires and Cables and Communications
Raceways. Communications wires and cables shall
comply with the requirements of 800.53(A) through (F)
or where cable substitutions are made in accordance
with 800.53(G).
(A) Plenum. Cables installed in ducts, plenums, and
other spaces used for environmental air shall be Type
CMP. Abandoned cables shall not be permitted to
remain. Types CMP, CMR, CMG, CM, and CMX and com-
munications wire installed in compliance with 300.22
shall be permitted. Listed plenum communications race-
ways shall be permitted to be installed in ducts and
plenums as described in 300.22(B) and in other spaces
used for environmental air as described in 300.22(C).
Only Type CMP cable shall be permitted to be installed
in these raceways.

(B) Riser. Cables installed in risers shall comply with
800.53(B)(1), (B)(2), or (B)(3).

(1) Cables in Vertical Runs. Cables installed in

vertical runs and penetrating more than one floor,
or cables installed in vertical runs in a shaft, shall
be Type CMR. Floor penetrations requiring Type
CMR shall contain only cables suitable for riser or
plenum use. Abandoned cables shall not be permit-
ted to remain. Listed riser communications race-
ways shall be permitted to be installed in vertical
riser runs in a shaft from floor to floor. Only Type
CMR and CMP cables shall be permitted to be
installed in these raceways.

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