A Solid Thermocouple Alloy Conductor
B Okoseal Insulation
C Twisted Pairs
D Communication Wire
E Aluminum/Synthetic Polymer
Tape
F Tinned Stranded Copper Drain
Wire
G Rip Cord
H
Okoseal Jacket
Specifications
Conductors: Solid alloys per ANSI MC 96.1
Insulation: Flame-retardant Okoseal (PVC) per UL Standards 13 and
2250, 15 mils nominal thickness, 105°C
temperature rating.
Conductor Identification: Pigmented insulation on individual
conductors, negative conductor numerically printed for group
identification.
Communications Wire: 22 AWG, solid strand, bare copper conductor 12
mils nominal flame-retardant Okoseal insulation, 105°C
temperature rating.
Assembly: Pairs assembled with left-hand lay. Flame-retardant,
non-wicking fillers included where required to provide a round cable.
Cable Shield: Aluminum/Polyester backed tape overlapped to
provide 100% coverage, and a 7-strand tinned copper drain wire, same size
as the conductor.
Jacket: Color-coded, flame-retardant Okoseal per UL Standards 13
and 2250. A rip cord is laid longitudinally under the jacket to facilitate
removal.
Classification: UL Listed as Type ITC/PLTC - Instrumentation Tray
Cable/Power Limited Tray Cable for use in accordance with Article 725 and
727 of the National Electrical Code.
The cables comply with UL 2250 and UL 13 for CL2 and CL3.
Applications
Okonite Type P-OS (Pair/triad - Overall Shield) Thermocouple
Extension cables are 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
shielding against external interference is required, but shielding against
interference among groups is not required; indoors or outdoors; in wet or
dry locations with conductor operating temperatures up to 105°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. Also for use as
Power-Limited fire protective signaling cable (FPL) per NEC Code 760.
Product Features
- Passes the UL 1581 and IEEE
383-1974 vertical tray flame tests.
- Sunlight resistant and oil resistant.
- UL listed for direct burial (4/C #20 AWG or 2/C #18 and larger)
- Individual pairs are numbered and color-coded for simplified
hook-up.
- Good external noise rejection.
- Excellent weathering characteristics.
- OSHA Acceptable.
- Flexible, easy to handle, splice and terminate.
- 100% shield coverage for reduced electromagnet noise pick-up.
- Communication wire included in each cable for voice communication
during installation or instrument calibration.
- Suitable for low temperature installation of -40°C.
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