Okoseal-N^® Type SP-OS
Type TC Instrumentation Cable
Multiple Shielded Pairs or Triads - Overall Shield
600 Volts - 90°C Dry/75°C Wet Rating
For Cable Tray Use
 

A  Stranded Bare Copper Conductor

B  Okoseal Insulation with Nylon Jacket

C  Tinned Stranded Copper Group Drain Wire

D  Double Faced Aluminum/Synthetic Polymer Backed Tape

E  Twisted, Shielded Pairs/Triads

F  Double Faced Aluminum/Synthetic Polymer Backed Tape

G  Stranded Tinned Copper Drain Wire

H  Rip Cord

J   Black Okoseal Jacket

Specifications
Conductors: Bare soft annealed copper, Class B, 7-strand concentric per ASTM B-8.

Insulation: Flame-retardant Okoseal (PVC), 15 mils nominal thickness, nylon jacket, 4 mil nominal thickness, 90°C temperature rating, per UL Standard 1277.

Conductor Identification: Pigmented black and white in pairs; black, white and red in triads.

Group Shield: Aluminum/Polyester tape overlapped to provide 100% coverage, and a 7-strand tinned copper drain wire, two sizes smaller than the conductor. All group shields are completely isolated from each other.

Assembly: Pairs or triads assembled with1 left-hand lay. Flame-retardant, non-wicking fillers included where required to provide a round cable.

Cable Shield: Aluminum/Polyester tape overlapped to provide 100% coverage, and a 7-strand tinned copper drain wire, same size as conductor.

Jacket: Black, flame-retardant, low temperature Okoseal per UL Standard 1277, 90°C temperature rating. A rip cord is laid longitudinally under the jacket to facilitate removal.

Classification: UL Listed as Type TC Article 340 of the National Electrical Code.

Applications
Okonite's Type SP-OS (Shielded pairs or triads - Overall Shield) instrumentation cables are designed for use on Class 1 Remote-Control Signaling circuits or where a 600V cable is desired, as instrumentation, process control, or computer cable transmitting signals at levels above 100 mili-volts in circuits where maximum noise protection is required. Protection
from interference among groups as well as external sources is provided by individual group shields as well as an overall cable shield. For use indoors or outdoors; wet or dry locations; in cable trays; in raceways; supported by a messenger wire; for direct burial; in Class I, Division 2, Class II, Division 2 or Class III, Division 2 hazardous locations. Also for use as non power limited fired protective signaling cable (NPLF) per NEC Code 760. Type TC cables can be labeled Okomarine to be used in ABS and Coast Guard approved marine applications.

Product Features

• Passes the UL 1277 and IEEE 383-1974 vertical tray flame tests.
• Passes IEEE 1202-1991 vertical tray flame test (8 pr #18 and 4 pr #16 & larger).
• May be combined with 600 volt power and control cables in the same tray.
• Sunlight resistant and oil resistant.
• UL listed for direct burial (2/C #16 AWG and larger).
• Individual pairs or triads are numbered and color-coded for simplified hook-up.
• Individual pairs or triads are completely isolated.
• 100% shield coverage for reduced electromagnetic noise pick-up.
• Good external noise rejection.
• Excellent weathering characteristics.
• OSHA Acceptable.
• Flexible, easy to handle and terminate.
• May be used in approved marine applications.
• Suitable for installation at low temperatures to -40°C.

Authorized Stock Item: Available from our Customer Service Centers.

 † Cross-sectional area for calculation of cable tray fill in accordance with NEC Section 318-8

Length Tolerance: Cut lengths of 1000 feet or longer are subject to a tolerance of ± 10%; less than 1000 feet ±15%.

ELECTRICAL SPECIFICATIONS
Per UL Standard 1277
Conductor Resistance, maximum ohms/1000 ft.                                
......................................................@20°C.............@25°C            
18 AWG.......................................6.09..................7.04             
16 AWG ......................................4.34..................4.43             
14 AWG.......................................2.72..................2.78             
Insulation Test Voltage (spark test)                                                  
18 - 16 AWG...............................6000 VOLTS AC                 
14 AWG.......................................7500 VOLTS AC                 
Dielectric Test Voltage......................2000 Volts ac for 1 minute     
Insulation Resistance Constant @ 60°F, minimum                            
(natural material typical value)....................2000 Ohms-1000 ft.
Loop Resistance, maximum (2 conductor)................ohms-1000 ft   
.........................................................@20°C...............@25°C       
18 AWG........................................12.18..................14.08       
16 AWG..........................................8.68....................8.86       
14 AWG..........................................5.44....................5.56