Carlon Structured Cable Management Systems Handbook - Low Res User Manual
Page 55
53
FPN: One method of determining that cable is
resistant to flame spread is by testing the cable to
the VW-1 (vertical-wire) flame test in ANSI/UL 1581-
1991 Reference Standard for Electrical Wires, Cables
and Flexible Cords.
(G) Multipurpose (MP) Cables. Cables that meet
the requirements for Types CMP, CMR, CMG, and CM
and also satisfy the requirements of Section 760.71(B)
for multiconductor cables and Section 760.71(H) for
coaxial cables shall be permitted to be listed and
marked as multipurpose cable Types MPP, MPR, MPG,
and MP, respectively.
(H) Communications Wires. Communications wires,
such as distributing frame wire and jumper wire, shall
be listed as being resistant to the spread of fire.
FPN: One method of defining resistant to the spread
of fire is that the cables do not spread fire to the
top of the tray in the vertical-tray flame test in
ANSI/UL 1581-1991 Reference Standard for Electrical
Wires, Cables and Flexible Cords.
Another method of defining resistant to the spread of
fire is for the damage (char length) not to exceed 1.5 m
(4 ft 11 in.) when performing the vertical flame test –
cables in cable trays, as described in CSA C22.2 No. 0.3-
M-1985 Test Methods for Electrical Wires and Cables.
(I) Hybrid Power and Communications Cable.
Listed hybrid power and communications cable shall be
permitted where the power cable is a listed Type NM or
NM-B conforming to the provisions of Article 334, and
the communications cable is a listed Type CM, and the
jackets on the listed NM or NM-B and listed CM cables
are rated for 600 volts minimum, and the hybrid cable
is listed as being resistant to the spread of fire.
FPN: One method of defining resistant to the spread
of fire is that the cables do not spread fire to the top
of the tray in the vertical-tray flame test in ANSI/UL
1581-1991 Reference Standard for Electrical Wires,
Cables and Flexible Cords.
Another method of defining resistant to the spread
of fire is for the damage (char length) not to exceed
1.5 m (4 ft 11 in.) when performing the vertical flame
Gross Automation (877) 268-3700 · www.carlonsales.com · [email protected]