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MT Souterrain Torsade Cable

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MT Souterrain Torsade Cable

 

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(Size):

3x50/16, 3x70/16, 3x95/16, 3x120/16, 3x150/25, 3x185/25, 3x240/25

Specification

Construction characteristics
Conductor flexibilityStranded class 2
Conductor shapeCircular stranded (RM)
Material of the inner semi-conductorExtruded
InsulationXLPE (chemical)
Material of the external semi-conductorExtruded strippable grooved elastomer
Material used for longitudinal water tightnessSwelling powder
ScreenLongitudinal aluminium tape
Mechanical characteristics
Cable flexibilityRigid

 

Rated Voltage
12/20kV



Cross SectionConstruction mm












Conductor

Conductor Screen
XLPE Insulation
Insulation Screen
Metallic ScreenOuter Sheath



Nominal thickness
Nominal thickness
Nominal thickness
Aluminum TapeNominal thickness
NoDiaDiaDiaDiaDiaWidthThicknessDiaDia
mm2
mmmmmmmmmmmmmmmmmmmmmmmmmm
2572.186.00.67.25.518.20.719.6700.2020.21.823.8
3572.577.00.68.25.519.20.720.6740.2021.21.824.8
5072.998.20.69.45.520.40.721.8770.2022.41.826.0
70142.579.90.611.15.522.10.723.5830.2024.11.827.7
95192.5711.60.612.85.523.80.725.2900.2025.81.929.6
120192.9013.00.614.25.525.20.726.6940.2027.21.931.0
150302.5714.40.615.65.526.60.728.0990.2028.62.032.6
185372.5716.20.617.45.528.40.729.81040.2030.42.034.4
240372.9418.60.619.85.530.80.732.21120.2032.82.137.0
300373.2920.80.622.05.533.00.734.41210.2035.02.239.4
400602.9123.60.624.85.535.80.737.21300.2037.82.342.4
500603.3126.60.627.85.538.80.740.21390.2040.82.445.6
630603.7730.20.631.45.542.40.743.81500.2044.42.549.4
800604.2734.20.635.45.546.40.747.81630.2048.42.653.6

 


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