12/20(24)KV Three Core XLPE insulated bundled overhead conductors (torsade)

1. Scope

The Specification covers three core overhead insulated cables, rate 12/20(24)KV generally conforming to IEC60502-2

 

2. Constuction

 

2.1 Conductor

Aluminium, Circular stranded and compacted confriming to IEC 60228- class 2

 

2.2 Conductor Screening

Extruder thermosetting semi-Conductor layer conforming to IEC 60502-2

 

2.3 Insulation

XLPE thermosetting material Conforming to IEC 60502-2

 

2.4 Insulation Screening

2.4.1 Semi conductor screen:

Extruded thermsetting semi-conductor layer, applied unde a swellable semi-conductingtape for watertightness.

2.4.1Metal screen

Plain soft copper wire and /or copper tape applied helically, or aluminiu tape applied longitudinally bonded to the outer PE sheath.

 

2.5 Outer Sheath

Extruded black PE sheath, or PVC upon specific customer requirements, conforming to IEC60502-2

 

2.6 steel messenger

50 or 70 mm2 steel stranded wires covered with black PE, or PVC opon specific customers' requirement

 

3. Tests

all Tests required  by the IEC 60502-2, either on raw material or on finished products.

 

4. Dimensional Characteristics:

 

Other special characteristics: Design and manufacture according to customer's request.