1-core underground copper cable SUNWON- 8.7/15 (17.5) kV- CU/XLPE/PVC/DSTA/PVC-W

1-core underground copper cable SUNWON- 8.7/15 (17.5) kV- CU/XLPE/PVC/DSTA/PVC-W structure

1-core underground copper cable SUNWON- 8.7/15 (17.5) kV- CXSV 1x

Medium voltage underground cable with 1 core conductor made of 99.9% pure copper, the core is covered with 7 layers in turn including: thin PVC, XLPE insulating plastic, PVC liner, copper tape layer, thin PVC layer, and copper tape layer. aluminum and a PVC outer layer, used for medium voltage networks with working voltages from 8.7/15kV and a maximum of 17.5kV.

1. Applicable standards : TCVN 5935-2: 2013 ; IEC 60502-2:2005;

2. Product structure:

Conductive core is concentrically braided from many electrical engineering circular copper wires;
Insulation is natural white XLPE plastic, with phased color palette;
2 layers of pure copper and aluminum winding tape;
Semiconductor PVC layer;
Black PVC protective cover.

3. Rated voltage Uo/U (Um) : 8.7/15 (17.5)kV.

4. Maximum conductor temperature : 90 degrees Celsius.

5. Nominal cross-section : From 10mm2 to 240mm2.

Category: Medium Voltage Cables

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Products of 1-core underground copper cable SUNWON- 8.7/15 (17.5) kV-AL/XLPE/PVC/DSTA/PVC-W are specified according to TCVN 5935-2:2013 with the following technical requirements:

The rated voltage Uo/U(Um) of the cables considered in this standard is as follows: Uo/U(Um) = 3.6/6 (7.2) – 6/10 (12) – 8.7 /15 (17.5) – 12/20 (24) – 18/10 (36) kV.
Insulating compound:
- PVC/B for cable lines with rated voltage Uo/U = 3.6/6 kV;
- Thermosetting plastic: Ethylene propylene rubber or similar (EPR), High hardness ethylene propylene rubber or rubber (HEPR), Cross-linked polyethylene (XLPE);
- Maximum conductor temperature in normal operation: For PVC/B it is 70 degrees Celsius, for EPR/ HEPR/ XLPE it is 90 degrees Celsius.
Conductors: shall be class 1 (1 solid conductor) or class 2 (braided conductor) of metallized annealed copper with aluminum/aluminum alloy in accordance with IEC 60228.
Specifies the nominal thickness of PVC/B, XLPE, EPR/HEPR insulation classes.
Shield regulations:
- The conductor screen shall be of non-metallic material and shall be of extruded semiconductor compound, which may be placed on top of a semiconductor ribbon. The extruded semiconductor compound shall be firmly bonded to the insulation;
- The insulating screen shall consist of a non-metallic semiconductor layer combined with a metallic layer. The non-metallic layer shall be extruded directly onto the insulation of each core and made of an adherent or peelable semiconductor compound;
- The metal screen shall be one or more ribbons, or a woven mesh or a layer of concentric wire, or a combination of wires and ribbon(s).
Metal armor thickness regulation: Armor can be round/flat wire or double ribbon. In addition, the TCVN specifies that the tape armor should be wound spirally in two layers so that the outer band is approximately centered over the gap of the inner band…