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Three cores bundled overhead cables
Three cores bundled overhead cables
12/20 (24) KV THREE CORE XLPE INSULATED
Read moreDescription
Description
Standards
-
InternationalIEC 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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