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A Stranded Tinned Copper Conductors
B Okonite FMR-N Insulation
C Tinned Copper Drain Wire
D Copper/Polyester Shield
Tape
E Polyester Tape (as
needed)
F Tinned Copper Drain Wire
G Copper/Polyester/Nomex
Shield Tape
H Rip Cord
J X-Olene FMR Jacket
Insulation
Okonite FMR-N is Okonite’s trade name for its heat, moisture, flame and
chemically resistant, mechanically rugged nuclear plant qualified
ethylene-propylene insulation compound. Its physical properties and
flame retardency permit its use without a jacket on the single
conductors.
The properties of Okonite FMR-N insulation substantially enhance the
well known features of ethylene propylene rubber insulations.
Nuclear qualified Okonite FMR-N cables meet IEEE Standard - 383 LOCA and
flame test criteria.
Overall Jacket
The overall jacket is a cross-linked polyethylene compound. This
combination construction assures circuit security because of its high
mechanical strength and excellent resistance to moisture, ozone, oil and
many chemicals.
Applications
Okonite FMR-N Instrumentation Cables are recommended for use in power
generating plants and in substations; designed especially for critical
circuits where continuity of service is of prime importance. This
premium quality instrumentation cable is recommended for wet or dry, ac
or dc service at conductor temperatures to 90°C. They may be installed
in conduits, ducts, cable troughs, trays, messenger supported, or
directly buried in the earth.
Specifications
Conductors: Tinned copper per ASTM B-33, Class B stranded per
ASTM B-8.
Insulation: Okonite FMR-N meets or exceeds the electrical and
physical requirements of ICEA S-73-532.
Conductor Identification: Pigmented black and white in pairs,
black, white and red in triads; white conductor numerically printed for
group identification.
Group Shield: Copper/polyester tape overlapped to provide 100%
coverage, and a 7-strand tin coated copper drain wire, two sizes smaller
than the conductor. All group shields are completely isolated from each
other.
Assembly: Pairs or triads assembled with left-hand lay.
Flame-retardant, non-wicking fillers included where required to provide
a round cable.
Cable Shield: Copper/Polyester/Nomex tape overlapped to
provide 100% coverage, and a 7-strand tinned copper drain wire, same
size as conductor.
Overall Jacket: The X-Olene FMR compound meets or exceeds the
requirements of thermoset jackets given in ICEA S-73-532.
Product Features
- Qualified as Class 1E cable.
- Flame retardant - passes the IEEE 383 and 1202 flame test
requirements.
- Quality Assurance traceability.
- 90°C rated control cable, factory assembled for indoor or
outdoor installation in cable trays, in raceways, direct burial in
the earth, or supported by messenger wire.
- Individual units are completely isolated for maximum noise
rejection.
- Mechanically rugged.
- Color coded conductors.
- Resistant to water, oil and many chemicals.
- Thermally stable at elevated temperatures.
- High insulation resistance, even at elevated temperatures.
- Small diameter, lightweight.
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