EPOP cable consists of the three copper annealed tinned conductors each of which insulated with EPDM (ethylene-propylene-diene monomer) film, lead sheath and nylon braid. Three insulated conductors placed in one section are wound with steel tape galvanized from 4 sides.

KEPOP cable as against to the EPOP has additional insulation consisting of two polyimide-fluoroplastic tape films with 50% overlap in each film placed on copper strand prior to EPDM film, and additional sheath from polyvinyl-fluoride tape placed over the lead sheath.

The high-temperature cable at the customer’s request can have corrosion-resistant armor of Monel or stainless steel.

KESBP-230 Kelaf cable and KESBkP-230 Kelaf  cable:

• execution of wire: copper solid-drawn, tin-plated
• insulation: EPDM rubber, patented composition, ensures perfect electric specifications
  

  Specification	Requirement of GOST R 51777-2001	Actual factor
  Leakage of current at testing voltage 18 kV per 1 km and temperature 20°Ñ, mcÀ	Not more than 50	Not more than 10
  Electrical resistivity of insulation per 1 km and at the temperature 20 °Ñ, ÌOhm	Not less than 500	Not less than 2500

• sheath: manufactured of lead alloy, protects insulation from the impact of formation fluid and free gas
• braid: manufactured of synthetic yarns made of materials resistant to chemicals, reduces mechanical impact of armor during cable operation
• armor: manufactured of steel zinc-plated strip (KESBP), applied with overlap 50 %; available is also armor made of stainless steel strip (KESBkP)
• cable is capable to stand crushing load not less than 158 kN (16000 kg)
• insulated cable wires maintain leakproof at differential pressure of fluid – 0.1 MPa per 1 meter.
• minimal cable bending radius - 380 mm.