A Solid Thermocouple Alloy
Conductors
B Okozel Insulation
C Coated, Stranded Copper Group
Drain Wire
D Aluminum-Polyester isolated Group
Shield
E Twisted, Shielded Pairs/Triads
F Communication Wire
G Polyester Tape
H Coated, Stranded Copper Drain
Wire
J Aluminum-Nylon-Polyester Cable
Shield
K Okozel Jacket
Specifications
Conductors: Solid alloys per ANSI MC 96.1
Insulation: Flame-retardant, radiation-resistant Okozel, a modified
ETFE fluoropolymer. Cable meets or exceeds requirements for UL Standard 13
and 2250.
Conductor Identification: Pigmented insulation on individual
conductors, negative conductor numerically printed for group
identification.
Group Shield: Aluminum-polyester tape overlapped to provide 100%
coverage, and a 7-strand coated copper drain wire, two sizes smaller than
the conductor. All group shields are completely isolated from each other.
Communications Wire: 22 AWG, solid, bare copper conductor 9 mils
nominal Okozel insulation.
Assembly: Pairs assembled with 1 - 2 left-hand lay.
Flame-retardant, non-wicking fillers included where required to provide a
round cable; polyester tape overall.
Cable Shield: Aluminum-nylon-polyester tape overlapped to provide
100% coverage, and a 7-strand coated copper drain wire, same size as
conductor.
Jacket: Flame-retardant, radiation, oil, fuel and
chemical-resistant Okozel.Cable meets or exceeds the requirements of UL 13
and UL 2250, NEMA HP-100, IEEE Std. 383 Type Test of Class IE Electric
Cables for Nuclear Power Generating Stations.
Classifications: UL Listed as ITC/PLTC - Instrument Tray
Cable/Power Limited Tray Cable for use in accordance with Article 727 and
725 of the National Electrical Code.
The cables comply with UL 2250 and UL Subject 13 for CL2 and CL3.
Applications
Okonite Okozel Type SP-OS (Pair/triad - Individual and Overall
Shield) Thermocouple Extension cables are recommended for use in either
nuclear powered or fossil fueled generating stations where continuity of
critical control circuits is of primary importance. Designed for use as
instrumentation and process control cables in ITC non-classified or
labeled circuits up to 150 volts and 5 amps (750VA) and in Class 2 or 3
Power-Limited circuits where maximum shielding against external
interference is required, as well as shielding among groups, particularly
where the cable may be subject to abnormally high current or voltage
interference; indoors or outdoors; in wet or dry locations with conductor
operating temperatures up to 150°C; in
cable trays; in raceways; supported by a messenger wire; under raised
floors; for direct burial. Suitable Class I, Division 2; Class II,
Division 2; or Class III, Division 2 hazardous locations. Listed for 1E
Nuclear Station applications (meets LOCA requirements). Also for use as
Power-Limited fire protective signaling cable (FPL) per NEC Code 760.
Okozel thermocouple extension cables are also recommended for high ambient
temperature areas up to 150°C (302°F)
in industrial applications or for cold weather installations in excess of
-65°C (-85°F).
Product Features
- Maximum noise rejection.
- Communication wire included in each cable for voice communication
during installation or instrument calibration.
- 100% shield coverage for reduced electrostatic noise.
- Outstanding nuclear radiation resistance even when exposed to LOCA
conditions.
- Low surface friction provides easier installation.
- Smaller and lighter diameter permits more cables per tray.
- 150°C continuous operating
temperature, 90°C in containment
area.
- Cold installation temperature in excess of -65°C.
- Exceptional abrasion resistance will not cut or tear.
- Flame-retardant and non-propagating. Passes IEEE 383 and UL Vertical
Tray Flame Tests.
- Low smoke emission.
- Chemically inert-unaffected by typical acids, bases, solvents and
cleaning agents, fuels and hydraulic fluids.
- High dielectric strength.
- Low dielectric constant.
- Qualified for nuclear generating stations, Class IE, 90°C
rated. See Okonite Sales for heavier walls needed to meet Nuclear
qualified cable.
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