The high voltage power cables manufactured by ZMS power cable suppliers are of standard 35kv-220kv voltage levels, such as high voltage overhead power lines and underground power cables.
The high-voltage cables we offer include British Standard, American Standard, European Standard, etc. Of course, we can also customize the type of multi-jointed HV cables to suit your needs.
You can ask us for cable solutions, designed and used around the specific requirements of your application and project.
We are adept at challenging different quantities or lengths of cable, or technically difficult constructions.

Description of ZMS High Voltage Cable Products

The ZMS Power brand has been synonymous with the longest life in medium and high-voltage cable systems.
Both in design and manufacture, we offer reliable performance and low maintenance to keep your current and future long-term transmission projects running consistently.
They are suitable for outdoor, underground, and underwater installations, as well as for power stations, wind farms, industrial, submarine transmission, and more.

The cable conductors can be made of copper or aluminum, depending on the customer`s preference or current carrying capacity.

Large-size solid conductors are made of aluminum.

StandardIEC: 60840, IEC 60287, IEC 62067, ICEA S-108-720, and AEIC CS9.

Construction
Voltage: 35kv-220kv
Conductor: Class 2 copper or aluminum conductor, compacted or segment strand Milliken to BS EN 60228 (previously BS 6360)
Conductor Screen: Extruded semi-conductive XLPE (Cross-Linked Polyethylene)
Cross-Section: 150-800mm2
Insulation: XLPE(Cross-Linked Polyethylene)
Insulation Screen: Semi-conductive XLPE (Cross-Linked Polyethylene)
Separator: Water swellable semi-conductive tape
Screen: Copper wire screen, with a counter helix of copper tape
Separator: Water swellable tape
Sheath: HDPE (High-Density Polyethylene)(To be specified at the time of order. Other options available)
Maximum Conductor Temperature In Service: (Operating temperature-continuous operation) +90 °C
Short Circuit Temperature: +250 °C
Operating Temperature: -30 °C to 90 °C
Major technical parameters (220kv and below cable)
Partial Discharge Test: No detectable discharge exceeding the declared sensitivity (5 pC or better) at 1.5 U0.
Power Frequency Voltage Test: No breakdown of the insulation or flashover at 2.5U0 for 30 min.
Non-metal Sheath DC Voltage Test: No breakdown at DC voltage 25kV for 1 min.
DC Resistance Measurement of Copper Wire Screen at 20℃: The measured value shall comply with the specification of IEC 60228:2004.

Applications：

These XLPE Cable Insulated Armoured High Voltage Power Cables are designed for the distribution of electrical power with a nominal voltage of 76/132kV.

They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground, and in water as well as for installation on cable trays for industries, switchboards, and power stations.

ZMS Cable supplies the most suitable cables and cable accessories for various engineering customizations.

HV Cable Insulation XLPE has the following advantages:

1、Heat Resistance Performance:
XLPE with reticulated three-dimensional structure has very excellent heat resistance performance. It will not decompose and carbonize below 300℃, the long-term working temperature can reach 90℃, and the thermal life can reach 40 years.
2、Insulation Performance:
XLPE maintains the original good insulation characteristics of PE, and the insulation resistance is further increased.
Its dielectric loss angle tangent value is very small, and it is not greatly affected by temperature.
3、Mechanical Properties:
Due to the establishment of new chemical bonds between macromolecules, the hardness, stiffness, abrasion resistance, and impact resistance of XLPE have been improved, thus making up for the shortcomings of PE which is susceptible to environmental stress and cracking.
4、Chemical Resistance Characteristics:
XLPE has strong acid and alkali resistance and oil resistance, and its combustion products are mainly water and carbon dioxide, which are less harmful to the environment and meet the requirements of modern fire safety.

Electrical Data of XLPE Insulated Power Cable：