Type SP-OS
Multiple Shielded Pairs or Triads - Overall Shield
300 Volts - 105°C Rating
Bare Stranded Copper Conductors
Okoseal Insulation
Tinned Stranded Copper Group
Drain Wire
double faced Aluminum/Polyester
Backed Tape Group Shield
Twisted, Shielded Pairs/Triads
Communication Wire
Double Faced Aluminum/Polyester
Backed Tape
Tinned Stranded Copper Drain Wire
Rip Cord
Inner Black Okoseal Jacket
Galvanized Steel Wire Armor
Outer Black Okoseal Jacket
Bare soft annealed copper, Class
B, 7-strand concentric per ASTM B-8.
Flame-retardant Okoseal® (PVC)
per UL Standard 13 and 2250, 15 mils nominal thickness, 105°C temperature rating.
Pigmented black and
white in pairs, black, red and white in triads;
white conductor numerically printed for group
identification.
Aluminum/synthetic polymer
backed 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.
22 AWG, solid, bare
copper conductor, 12 mils nominal flameretardant Okoseal insulation, 105°C temperature
rating.
Pairs or triads assembled with lefthand lay. Flame-retardant, non-wicking fillers
included where required to provide a round cable.
Aluminum/Polyester backed tape
overlapped to provide 100% coverage, and a 7strand tinned copper drain wire, same size as
conductor.
Black, flame-retardant, low
temperature Okoseal per UL Standard 13 and
2250. A rip cord is laid longitudinally under the
jacket to facilitate removal.
A single serving of soft annealed
galvanized steel wires applied with a left-hand
lay and 90% minimum coverage.
Black, flame-retardant, low
temperature Okoseal per UL Standard 13 and
2250.
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.
The cable core complies with UL 2250 and UL
13 for PLTC, CL2 and CL3.
Okonite single wire armor (SWA) Type SP-OS
(Pair/triad - Individual and Overall Shield) instrumentation cables are designed for use as
instrumentation, process control, in ITC nonclassified 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
UL
R
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 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.
The isolated individual shields over each
pair, when properly grounded, prevent crosstalk or capacitive coupling between adjacent
pairs which occurs with ac signals, particularly the pulse type.
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 the physical protection
against mechanical damage.
For dc service in wet locations X-Olene® insulation is recommended.
• Sunlight resistant.
• Excellent electromagnetic shielding.
• Oil resistant.
• Individual pairs or triads are completely isolated.
• Maximum noise rejection.
• Communication wire included in each cable for voice communication during
installation or instrument calibration.
• Excellent longitudinal strength.
• Lower installed system cost than conduit
or EMT systems.
• Excellent Cut-through resistance.
• Suitable for IEC/BS application.
• OSHA Acceptable.
Type SP-OS
Multiple Shielded Pairs or Triads - Overall Shield 300V - 105°C Rating
UL
=
R
261-10-8204
261-10-8208
261-10-8210
4
8
10
50
50
60
.42
.56
.66
38 x 18
34 x 18
31 x 16
.53
.65
.78
50
50
60
.64
.76
.92
.32
.45
.66
355
474
693
394
513
757
261-10-8212
261-10-8216
261-10-8220
12
16
20
60
60
60
.69
.76
.82
32 x 16
35 x 16
31 x 14
.81
.88
.98
60
60
60
.94
1.01
1.12
.69
.80
.99
736
842
1103
800
906
1183
24
36
50
70
70
70
.94
1.06
1.21
34 x 14
29 x 12
34 x 12
1.10
1.26
1.42
70
70
70
1.25
1.41
1.57
1.22
1.56
1.93
1283
1801
2201
1389
1917
2344
261-10-8224
261-10-8236
261-10-8250
20(7X)
261-15-8204
261-15-8212
261-15-8216
4
12
16
50
60
60
.48
.77
.79
29 x 18
34 x 16
30 x 14
.58
.89
.95
50
60
60
.69
1.03
1.09
.37
.83
.93
388
830
1103
427
894
1183
261-15-8224
261-15-8236
24
36
70
70
.99
1.11
36 x 14
31 x 12
1.15
1.32
70
70
1.30
1.47
1.33
1.70
1462
2068
1568
2184
261-10-8304
261-10-8308
261-10-8310
4
8
10
50
50
60
.49
.61
.73
30 X 18
29 X 16
35 X 16
.60
.73
.86
50
50
60
.70
.84
.99
.38
.55
.77
405
648
817
444
712
881
261-10-8312
261-10-8316
261-10-8320
12
16
20
60
60
70
.75
.83
.94
35 X 16
31 X 14
35 X 14
.88
.99
1.10
60
60
70
1.01
1.13
1.27
.80
1.00
1.27
864
1148
1370
928
1228
1450
24
36
50
70
70
80
1.04
1.19
1.42
29 X 12
33 X 12
39 X 12
1.25
1.40
1.63
70
70
80
1.40
1.55
1.80
1.54
1.89
2.54
1782
2176
2772
1898
2319
2959
261-10-8324
261-10-8336
261-10-8350
18(7X)
261-15-8304
261-15-8312
261-15-8316
4
12
16
50
60
60
.54
.80
.89
32 X 18
30 X 14
33 X 14
.64
.96
1.05
50
60
60
.75
1.09
1.18
.44
.93
1.09
453
1133
1319
492
1213
1399
261-15-8324
261-15-8336
24
36
70
70
1.10
1.24
31 X 12
35 X 12
1.32
1.45
70
70
1.47
1.61
1.70
2.04
2047
2537
2163
2680
261-10-8404
261-10-8408
261-10-8410
4
8
10
50
60
60
.54
.71
.82
37 x 18
33 x 16
31 x 14
.63
.83
.98
50
60
60
.74
.96
1.12
.43
.72
.98
477
827
1126
516
891
1206
261-10-8412
261-10-8416
261-10-8420
12
16
20
60
70
70
.85
.98
1.06
31 x 14
35 x 14
30 x 12
1.06
1.14
1.27
60
70
70
1.14
1.29
1.43
1.02
1.31
1.61
1192
1451
1931
1272
1557
2047
24
36
50
70
80
80
1.17
1.37
1.57
38 x 12
38 x 12
44 x 12
1.38
1.58
1.78
70
80
80
1.54
1.75
1.95
1.86
2.41
2.99
2177
2791
3468
2320
2978
3734
261-10-8424
261-10-8436
261-10-8450
16(7X)
261-15-8404
261-15-8412
261-15-8416
4
12
16
50
70
70
.58
.97
1.02
35 x 18
34 x 14
29 x 12
.68
1.13
1.23
50
70
70
.79
1.28
1.38
.49
1.29
1.50
542
1440
1948
581
1546
2064
261-15-8424
261-15-8436
24
36
80
80
1.27
1.43
36 x 12
41 x 12
1.48
1.64
80
80
1.66
1.82
2.16
2.60
2632
3319
2775
3585
Conductor Resistance, nominal .............ohms/1000 ft. @20°C
20 AWG....................................................................... 10.4
18 AWG......................................................................... 6.5
16 AWG......................................................................... 4.1
Insulation Test Voltage (spark test) ..............5000 Volts ac
Dielectric Test Voltage.........................1500 Volts ac for 15 sec.
Insulation Resistance Constant @60°F minimum
(natural material typical value) ......2000 Megohms-1000 ft.
Loop Resistance, nominal (2 conductor) ohms-1000 ft @20°C
20 AWG....................................................................... 20.8
18 AWG....................................................................... 13.0
16 AWG......................................................................... 8.2
Mutual Capacitance (PF/ft.)*
#20 ................................................................................. 59
#18 ................................................................................. 68
#16 ................................................................................. 76
*Typical Value
C/05030516
=
area for calculation of cable tray fill in accordance
with NEC Section 318-8
Aluminum Loxarmor available on special order.
Cut lengths of 1000 feet or longer are subject to a
tolerance of ± 10%; less than 1000 feet ± 15%.
THE OKONITE COMPANY
Ramsey, New Jersey 07446