Three-core XLPE insulated, steel tape armored, PVC sheathed high voltage cable with a an aluminum conductor

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÷240 mm²

2. 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: each conductor is screened with copper wire and copper tape

Minimum cross-section of screen for cables with a conductor cross-section of 25-120 mm² is 16 mm²
Minimum cross-section of screen for cables with a conductor cross-section of 150-240 mm² is 25 mm²

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

7. Internal filler is polyvinyl chloride plastic
   8. Armor is made of two zinced steel tapes (the upper layer tape is superimposed with the condition of covering the gaps between the turns
   of the lower layer tape) (B)
   9. The outer protective shell is made of PVC (Y)

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) / -15 ⁰С
• Ambient temperature: -50 / +50 ⁰C
• Minimum bending radius of the cable: 15xD (D – outer diameter of the cable)

NOTE: Technical specifications are given in Table 8.