NA2XSR(AL)2Yy

General information

Standard: AZS 418-2010 (TS İEC 60502-2), TSE K 204 The Russian analogue: APvKaPu Used for laying on the ground and cable lines, regardless of the degree of corrosiveness (under the condition of using a sheath that meets the conditions of fire safety). These cables can be used for laying in a vertical position and in areas with potential tensile force during cable operation, in areas with landslide and seismic activity, and on frozen ground. Cables can also be installed without restrictions on level differences.

Single-core XLPE insulated, an aluminum conductor high voltage cable armored by an aluminum wire and sheathed with the increased density polyethylene (PE)

Structure:

  1. The conductor is aluminum (A), multi-wire compacted, round form, corresponds to class 2 of IEC 60228
  • The cross-section of a multi-wire compacted round conductor is 25÷1000 mm2
  • The cross-section of a multi-wire compacted round conductor, consisting of 5 sectors, is 1000÷1600 mm2
  1. The outer conductor screen is made of extruded semiconducting cross-linked polyethylene
    3. Insulation is cross-linked polyethylene (2X)
    4. Insulation screen is made of extruded semiconducting cross-linked polyethylene
    5. The separation layer is made of semi-conductive water-blocking tape
    6. The screen of copper wires fastened with copper tape (S)

Minimum cross-section of screen for cables with a conductor cross-section of 25-120 mm 2 is 16 mm 2
Minimum cross-section of screen for cables with a conductor cross-section of 150-300 mm 2 is 25 mm 2
Minimum cross-section of screen for cables with a conductor cross-section of 400-1000 mm 2 is 35 mm 2
Minimum cross-section of screen for cables with a conductor cross-section of 1200 mm 2 and above is 50 mm 2

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

  1. The separation layer is made of PETF tape
    8. Inner sheath is made of polyvinyl chloride
    9. Armor is made of an aluminum wire
    10. The outer protective sheath is made of packed polyethylene (2Yy)

Specifications:

  • Operating conductor temperature: +90 0C
  • The maximum heating temperature of the cable conductors in case of emergency: +130 0C
  • The maximum heating temperature of the 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): -20 0С
  • Ambient temperature: -60 / +50 0C
  • Minimum bending radius of the cable: 15xD (D – outer diameter of the cable)

NOTE: Technical specifications are given in Table 4.