Three cores bundled overhead cables

Description

Description

Standards

  • International
    IEC 60502-2

1. SCOPE

This specification covers three core overhead insulated cables, rated 12/20 (24) KV generally conforming to IEC 60502-2.

2. CONSTRUCTION

 

2.1 Conductor

Aluminium, circular stranded and compacted conforming to IEC 60228 - Class 2.

 

 

2.2 Conductor Screening

 

Extruded 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 conducting screen:

Extruded thermosetting semi-conducting layer, applied under a swellable semi-conducting tape for watertightness.

2.4.2 Metal screen:

 

Plain soft copper wire and / or copper tape applied helically, or aluminium 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 IEC 60502-2.

2.6 Steel Messenger

50 or 70 mm 2

steel stranded wires, covered with black PE, or PVC upon specific customer requirements.

 

 

3. TESTS

All tests required by the IEC 60502-2, either on raw materials or on finished products.

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