Okonite Okoguard® Submarine Cable 15 and 35kV Shielded Power Cable 3 Copper Conductors/90°C Rating 133% Insulation Level

A Conductor-Copper

B Strand Screen-Extruded Semi-conducting EPR

C Insulation-Okoguard

D Insulation Screen-Extruded Semiconducting EPR

E Shield-Copper Tape

F Fillers-Polypropylene

G Binder Tape

H Jacket-Okolene

J Bedding-Polypropylene

K Armor-Galvanized Steel Wires

L Covering-Nylon Serving Slushed with tar

Insulation
Okoguard is Okonite's registered tradename for its exclusive ethylene-propylene rubber (EPR) based, thermosetting compound, whose optimum balance of electrical and physical properties is unequalled in other solid dielectrics. The clean red color of Okoguard is the result of an evolutionary development in ethylene-propylene compounding to gain greater dependability of the electrical characteristics. Okoguard insulation, with the distinctive red color and a totally integrated EPR system, provides the optimum balance of electrical and physical properties for long, problem free service.

Screens and Shielding
Strand and insulation screens are extruded semiconducting EPR materials completely compatible with the insulation. In addition, they are triple-tandem extruded with the insulation to provide a contaminate and ionization-free interface that will not separate with time and become a source of corona discharge. A 5-mil thick copper tape applied over the outer screen completes the shielding system.

Coverings
Each insulated conductor is covered with an extruded Okolene (Polyethylene) jacket. Multiple galvanized steel wires provide the primary mechanical protection and, in addition, provide longitudinal strength for laying the cable on the sea bottom and, if ever necessary, for its retrieval. Each armor wire may be provided with a high density polyethylene jacket for additional corrosion protection. A heavy layer of tough nylon over the armor protects it from scrapes and damage during the laying process.

Specifications
Conductor: Uncoated (or optional coated), Class B stranded per ASTM B-8, and compressed.

Strand/Insulation Screens: Thermoset semiconducting EPR screens triple-tandem extruded with and bonded to the insulation exceed the physical and conductivity requirements of ICEA S-93-639/NEMA WC74 and AEIC CS8.

Insulation: Meets or exceeds electrical and physical requirements of ICEA S-93-639/NEMA WC74 and AEIC CS8 where applicable.

Shield: 5 mil bare copper tape helically applied.

Jacket: Black Okolene (polyethylene) meets or exceeds the requirements of ICEA S-93-639/NEMA WC74 and ASTM D-1248.

Armor: Meets physical requirements of ICEA S-93-639/NEMA WC74 for Division I type round galvanized steel armor wire.

Product Features

Triple-tandem extruded, all EPR system.
Custom designed.
Other voltages available
Okoguard cables meet or exceed all recognized industry standards (UL, AEIC, NEMA/ICEA.
90°C continuous operating temperatures.
130°C emergency rating.
250°C short circuit rating.
Excellent corona resistance.
Exceptional resistance to "treeing".
Specially designed control, signal and fiberoptic components can be included in the cable interstices.
Full design, engineering and installation services available.
Experience in many successful submarine installations.
Improved Temperature Rating.

Okoguard insulation system has been tested and qualified for operation at 105°C continuous and 140°C emergency operating temperature.