Brand

High voltage cables 64-110 kV. Brand

Standard

IEC 60840-2022

Main design elements

1. Round stranded compacted conductor:

- Material
Aluminum (AI), Copper (Cu)

Cross-sectional area:

Aluminum 150-2000 mm²
Copper 150-2000 mm²

2. Conductor screen:

-extruded conductive peroxide-crosslinked polyethylene composition.

3. Insulation:

-peroxide-crosslinked polyethylene (Пв)

4. Insulation screen:

-extruded electrically conductive peroxide-crosslinked polyethylene composition

5. Separation layer:

-For types without index "г" - wrapping with tapes made of conductive paper or conductive cloth;
-For with the index "г", "гж", "2гж" and "2г" types -with conductive water-blocking covered tape

6. Metallic screen - copper wire with copper tape

- cross-section not less than 35 mm²

* Note: The screen cross-section is selected depending on the short-circuit currents, which must be calculated according to the conditions of laying the cable line. It is possible to apply a screen made of copper wires in two layers

7. Separation layer:

-for cables without index «г» - cable paper or plastic tape made of polyvinyl chloride plastic with an overlap
-for cables without index «г», «гж» - water-blocking tape
-for cables without index «2г», «2гж» - conductive water-blocking tape

8. Internal filling (inner covering) of cables with armor

-aluminum or aluminum alloy wires (Ка)

8. Armor

-for cables with the index «нг(А)- LS» - low smoke flame retardant PVC;
-for cables with the index «нг(А)-HF»  Halogen-free  HF - compound;
-for all other cables - PVC

9. Outer sheath:

-Polyethylene (П);
-Reinforced polyethylene (Пу);
-PVC (В);
-Flame retardant PVC (В нг(А))
-Low smoke Flame retardant PVC (В нг(А)-LS
-Halogen-free compound (П нг( )-HF) А ;