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Medium High Voltage Power Cable MV HV

Medium High voltage cables produced by ZMS can be used for more than 30 years. It is used for efficient transportation of medium-high voltage electricity.

Application

Medium and High voltage cables are used for overhead transportation of electricity, buried transportation of electricity, and submarine transportation of electricity.

Standard

IEC 60228; IEC 60502; IEC 60840; IEC 62067

Construction

1. Conductor: Copper conductor, water blocked.

2. Conductor Screening: Extruded semi-conductive compound.

3. Insulation: XLPE.

4. Insulation Screening: extruded semi-conductive compound.

5. Separator: Swelling tape.

6. Core Sheath1: Lead Sheath.

7. Core Sheath2: Semi-conductive PE sheath.

8. Fillers: Polypropylene filler.

9. Fibre-optic Element: Fibre optic cable.

10. Separator: Binder tapes

11. Bedding: Bedding layer.

12. Armour: Galvanized steel wires filled with bitumen compound.

13. Serving: Polypropylene yarn.


Cable Selection

The main difference between medium and high voltage cables and general low voltage cables is their perfect shielding structure.

That is, it has two shielding structures conductor shielding and insulation shielding.

These two shielding layers are very closely related to the cable accessories.


Wire and Cable are Classified According to Voltage Levels.


Low-voltage cables 0.6/1kV
Medium-voltage cables 3-35kV
High voltage cables 35-110kv
and ultra-high voltage cables 110-750kV

Low-voltage cables use ordinary PVC cables, polyethylene cables, and cross-linked polyethylene cables.
And the medium and high voltage cables are all cross-linked cables.
The 6kv-35kv ones are produced using three-layer co-extruded, high-density cross-linked polyethylene.
Common cable models are VV cable, YJV cable, VV22 cable, VV23 cable, YJV22 cable, and YJV23 cable.

The principles of selecting high, medium, and low voltage cables

The general principles for selecting cable cross-section, in order to achieve safety, reliability, economy, and technical reasonableness in power supply, the conductor cross-section should be determined according to the following principles.

(1) According to the long time allowable load current selection of wire cross-section.
Make the wire work under the maximum load for a long time without overheating, that is, not to exceed its long-time allowable temperature.

(2) According to the allowable voltage loss select the cross-section of the wire.
So that the receiving end has sufficient voltage to ensure the quality of the power supply.

(3) Select the wire cross-section according to the economic current density.
So that the annual operating cost of the transmission line is the lowest, to achieve the purpose of economic power supply.

(4) Select the cross-section of the wire according to the mechanical strength.
Avoid breakage during operation or installation, or damage due to smashing pressure to ensure the safe operation of the power supply.

(5) Select the wire cross-section according to the thermal stability of the short-circuit conditions.
When the wire through the short-circuit current does not exceed its short-time allowable temperature.


Electrical Data

6/10(12)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
350.230.43167
500.260.41199
700.290.38241
950.320.37288
1200.350.35327
1500.380.34363
1850.420.33405
2400.470.32464


12/20(24)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
350.170.47171
500.180.44199
700.20.41243
950.220.4292
1200.240.38328
1500.260.37364
1850.280.35408
2400.310.34467


26/45(52)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
950.180.431.5
1200.190.421.6
1500.210.41.6
1850.220.391.8
2400.240.372
3000.260.362.2
4000.290.352.3
5000.320.332.6
6300.350.322.9
8000.380.313.1
10000.420.33.5

38/66(72.5)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
950.170.442
1200.180.432.1
1500.190.412.3
1850.20.42.4
2400.220.382.6
3000.240.372.8
4000.260.353.1
5000.290.343.5
6300.320.333.7
8000.350.324.1
10000.380.314.6

64/110(123)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
1850.140.462.8
2400.150.433
3000.170.413.5
4000.20.383.9
5000.220.374.3
6300.240.364.7
8000.260.345.2
10000.280.335.6

76/132(145)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
1850.130.473
2400.140.443.4
3000.160.423.8
4000.180.44.3
5000.20.384.6
6300.210.375.1
8000.230.365.6
10000.250.356.1

87/150(170)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
2400.130.473.4
3000.140.443.7
4000.150.424.1
5000.170.44.7
6300.190.385.3
8000.210.375.7
10000.230.366.3

127/220(245)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
5000.140.435.7
6300.160.416.4
8000.170.46.9
10000.190.387.4

160/275(300)KV

Nominal Cross Section AreaCapacitanceInductanceCurrent Rating
mm²μF/mmmH/kmA
5000.140.446.8
6300.160.427.7
8000.170.48.3
10000.180.399

Dimension and Weight

26/45(52)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
9511.2829.61.310920.8
12012.68311.311222.3
15014.2832.61.411624.4
18515.8834.21.411926.2
24018.1836.51.512429.5
30020.4838.81.613032.9
40023.2841.61.713637.9
50026.28451.814443.2
63029.8848.61.915249.7
80033.7852.52.116258.6
100037.9857.32.217368.1

38/66(72.5)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
9511.2931.61.311321.6
12012.69331.411623.8
15014.2934.61.412025.7
18515.8936.21.412428
24018.1938.51.612931.3
30020.4940.81.613434.3
40023.2943.61.714139.2
50026.29471.914945.4
63029.8950.6215752
80033.7954.52.116760.1
100037.9959.32.317870.7

64/110(123)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
18515.81650.2215640.9
24018.11550.5215742.5
30020.41450.8215744.1
40023.21351.6215947.2
50026.213552.116753
63029.81358.62.317660.7
80033.71362.52.418569.5
100037.91367.32.619780.5

76/132(145)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
18515.81854.22.116544.9
24018.11754.52.116646.3
30020.41654.82.116748
40023.21555.62.116851.1
50026.215592.317658
63029.81562.62.418565.2
80033.71566.52.519474
100037.91571.32.720685.4

87/150(170)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
24018.12162.52.418455.5
30020.42062.82.418557.3
40023.21963.62.418760.5
50026.218652.519065.1
63029.81766.62.519469.7
80033.71770.52.720479.8
100037.91775.32.821590.5

127/220(245)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
50026.22477.62.921981.3
63029.82379.2322486.7
80033.72383.13.123495.3
100037.92387.33.1241104

160/275(300)KV

Nominal Cross Section AreaNominal Conductor DiameterNominal Insulation ThicknessNominal Diameter Over InsulationNominal Lead Sheath ThicknessNominal Overall DiameterWeight
mm²mmmmmmmmmmkg/m
50026.22681.62.922984.7
63029.82481.2322888.9
80033.72485.13.123797.6
100037.92489.33.1247106.3


Power Cable

Power cables are used to transmit and distribute electrical energy. Power cables are commonly used in urban underground power grids, power station lead-out lines, power supply within industrial and mining enterprises, and over-the-river transmission lines.

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CORPORATE SOCIAL RESPONSIBILITY

ZMS Cable have a wide product scope, includes: Power cables up to 500kV, AAC, AAAC, ACSR conductors, ABC Cable,electric wires, instrument cable, telecommunications cable, Stay wires. With advanced manufacture technology, rich human resource and effective management system, we guarantee all products are manufactured strictly in accordance with GB, IEC, BS, NFC, ASTM, DIN standards,etc. Beyond quality control, ZMS have been trying its best to offer much higher standard of services rather than expected.

The Adjuster
All customised cables designed by our cable engineer will be subject to testing to relevant standards and appropriate performance criteria. Bespoke cable testing will be conducted under our CNAS accreditation where appropriate. Where required by industry or application, we can submit for relevant cable certification and cable approval processes. For more information or to discuss possible custom designed cable solutions, please complete an enquiry form, contact our technical experts on the Technical Hotline +86 (0)371 6782 9333, or email:sales@zmscable.com

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