NA2XS(FL)2Yy+FO

General information

Standard: IEC 62067 The Russian analogue: APvPu2g + FO These cables are used in water bodies where there is no moving water vehicles, and on the ground, without taking into account the degree of corrosiveness (in trenches or concrete channels), provided there is protection against mechanical impact. It is allowed to install these types of cables on complicated cable routes.

XLPE insulated high-voltage fiber optic cable with an aluminum conductor, armor made of steel tape and polyethylene (PE) sheath of increased density

Structure:

  1. The conductor is aluminium (A), multi-wire, round and compacted; corresponds to class 2 of IEC 60228
  • The cross-section of a compacted round conductor is 400÷1000 mm2
  • The cross-section of a multi-wire compacted round conductor, consisting of 5 sectors, is 1000÷2500 mm2
  1. The conductor screen is made of extruded semiconducting cross-linked polyethylene
    3. The insulation is cross-linked polyethylene (2X)
    4. The insulation screen is made of extruded semiconducting cross-linked polyethylene
    5. The separation layer is made of semi-conductive water-blocking tape
    6. A steel pipe with an optical fiber placed between the copper wires of the screen (FO)
    7. The screen is of copper wires fastened with copper tape (S)

Minimum cross-section of screen for cables with a conductor cross-section of 400-800 mm2 is 95 mm2
Minimum cross-section of screen for cables with a conductor cross-section of 1000 mm2 and above is 120 mm2

The maximum cross-section of screen can be set based on the customer's require.

  1. The separation layer is made of semi-conductive water-blocking tape (FL)
    9. Waterproofing tape is made of aluminum polymer tape
    10. The outer protective sheath is made of packed polyethylene (2Yy)

Specifications:

  • Operating temperature of the conductor: +90 0C
  • The maximum heating temperature of cable conductors in case of emergency: +130 0C
  • The maximum heating temperature of cable conductors in case of a short circuit: +250 0С
  • The duration of a short circuit (not more than): 5 seconds
  • Cable laying temperature (not less than): -15 0С
  • Ambient temperature: -60 / +50 0C
  • Minimum bending radius of the cable: 15xD (D is outer diameter of the cable)

NOTE: Technical specifications are given in Table 2.