66-110kV Cross-Linked Polyethylene Insulated Power Cable

Product Name: 66-110kV cross-linked polyethylene insulated power cable

1-Implementation standards

GB/T11017.2-2024

2-Product Model

YJLW02, YJLW03, YJLW02-Z, YJLW03-Z, etc.

3-Voltage level

38/66kV, 50/ 66kV , 64/110kV

4-Product Specifications

240 mm 2 ～2000 mm 2

5- Cable structure description

Cable structure

Material Description

Conductor

Round compacted or split (copper or aluminum) conductors

Conductor shielding

Semi-conductive Tetoron wrapping tape + ultra-smooth cross-linked semi-conductive material

Insulation

Ultra-clean cross-linked polyethylene insulation material

Insulation shielding

Ultra-smooth cross-linked semi-conductive material

Buffer layer

Semi-conductive buffer tape or semi-conductive buffer water-blocking tape

Metal sleeve or metal shield

Corrugated aluminum sleeve or smooth aluminum sleeve or copper wire sparse winding; In addition, temperature monitoring optical fiber can be added according to needs

Anti-corrosion layer

Asphalt or hot melt adhesive or asphalt paint

Non-metallic outer sheath

Insulation grade (PVC or polyethylene or halogen-free low smoke flame retardant) sheath material

Outer sheath conductive layer

Graphite coating or extruded semi-conductive material

6-Sheath color

Black or red or as per customer's requirement

7-Special performance requirements

Flame retardant A/B/C grade, low smoke and halogen-free, termite-proof, rodent-proof, UV-resistant, etc.

8- Cable application characteristics

8.1 The maximum long-term rated temperature allowed for the cable conductor during normal operation is 90°C.

8.2 During short circuit (duration not exceeding 5 seconds), the maximum allowable temperature of the cable conductor is 250°C.

8.3 The cable installation temperature should not be lower than 0 ℃

8.4 Minimum bending radius for cable installation:

The minimum bending radius of the cable during installation : not less than 20 times the outer diameter of the cable;

The minimum bending radius of the cable after installation : not less than 15 times the outer diameter of the cable.

8.5The cables are widely used in power transmission and distribution systems, including urban power distribution networks and industrial power supplies. They are suitable for fixed installation, outdoor and indoor installations, direct burial installations, cable ducts, cable trenches, and tunnels, and can withstand moderate pressure. Depending on the model, the cables offer radial water resistance or both radial and longitudinal water resistance