A Bare Stranded Copper Conductor
B Okoseal Insulation
C Twisted Pairs/Triads
D Aluminum/Polyester Tape
E Tinned Stranded Copper Drain
Wire
F Rip Cord
G Black Okoseal Jacket
H Wire Armor
J Outer Black Okoseal Jacket
Specifications
Conductors: Bare soft annealed copper, Class B, 7-strand concentric
per ASTM B-8.
Insulation: Flame-retardant Okoseal (PVC) per UL 13 and 2250, 15
mils nominal thickness, 105°C
temperature rating.
Conductor Identification: Pigmented black and white in pairs,
black, red and white in triads.
Assembly: Pair or triad assembled with left-hand lay.
Cable Shield: Aluminum/Polyester tape overlapped to provide 100%
coverage, and a 7-strand tinned copper drain wire, same size as conductor.
Inner Jacket: Black, flame-retardant, low temperature Okoseal per
UL 13 and 2250. A rip cord is laid longitudinally under the jacket to
facilitate removal.
Wire Armor: A serving of soft annealed galvanized steel wires
applied with a left-hand lay and 90% minimum coverage.
Outer Jacket: Black, flame-retardant, low temperature Okoseal per
UL 13 and 2250.
Classifications: UL Listed as ITC/PLTC Instrument Tray Cable/Power
Limited Tray Cable for use in accordance with Article 727 and Article 725
of the National Electrical Code.
These cables comply with UL 2250 and UL 13 for PLTC, CL2 and CL3.
Applications
Okonite SWA Type P-OS (Pairs/triads - Overall Shield)
instrumentation cables are designed for use as instrumentation, process
control, in Class 2 or 3 Power-Limited circuits where shielding against
external interference is 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; in Class I,
Division 2, Class II, Division 2 or Class III, Division 2 hazardous
locations; suitable for direct burial. Also for use as Power Limited fire
protective signaling cable (FPL) per NEC Code 760. For use on ITC non
class 2 or 3 circuits up to 150 volts and 5 amps (750VA).The overall
shield eliminates most of the static interference from
the electric field radiated by power cables and other electrical
equipment.
The wire armor provides excellent longitudinal strength for use as a
messenger cable or for support in vertical drops (NEC Section 300-19) and
provides physical protection against mechanical damage.
For dc service in wet locations X-Olene®
insulation is recommended.
Product Features
- Passes UL 13 & IEEE 383-1974 flame test for use in cable tray.
- Sunlight & oil resistant.
- 100% shield coverage for reduced electromagnetic noise pick-up.
- Individual pair or triads is color coded for simplified hook-up.
- Good noise rejection
- Excellent longitudinal strength.
- OSHA Acceptable.
- Excellent Cut-through resistance.
- Suitable for IEC60502-1 and 60092-376 applications.
- Suitable for low temperature installation of -40°C.
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