Power Cables of Different Voltage Classes

We consider to according to different voltage levels, cables can be divided into low-voltage cables, medium-voltage cables, high-voltage cables, and ultra-high-voltage cables. Low-voltage cables are used to transmit power on output distribution lines that are fixedly laid at 50Hz AC and rated voltage is 3Kv and below. Medium voltage cables generally refer to power transmission lines with voltage levels above 3kv and below 35kv. The voltage level of High-voltage cables is 35kv to 220kv. Suitable for substation or overhead power transmission cables.

Classification of Voltage Levels

Voltage level refers to the series of rated voltage levels of power systems and power equipment. There are several different criteria for dividing voltage levels. Low voltage refers to the voltage level of 1000V and below in the AC system used for power distribution, that is, 1000V is the standard in AC power, and high voltage usually refers to the voltage level that exceeds the low voltage.
ZMS cable voltage level division is mainly the following:

  • Safety voltage (usually 36V or less)
  • Low voltage (also divided into 220V and 380V, residential single-phase power users generally use 220V)
  • Medium and high voltage (6kV, 10kV, 35kV, 220kV)
  • Ultra-high voltage (330kV, 500kV, 750kV)
  • Extra-high voltage 1000KV (AC), ± 800KV (DC) and above

Description of ZMS Power Cable Products

ZMS electric wire company is a well-known manufacturer of Cables of different voltage levels. No matter what voltage level or type of cable you need, we can provide a customized cable solution based on your application needs.
Now, today, there is always some ambiguity in the range of voltage levels for Voltage Cables. It depends on the country, as well as the standards-appointed bodies.

Low Voltage Cable 0.6/1KV or Below

ABC Cable(Aerial Bundled Cable) — Voltage Level 0.6 / 1kv

Aerial bundled cable is an overhead line with aluminum core, aluminum alloy core, or copper core as conductor and PVC / XLPE / HEPE as insulation. Applicable to an overhead power line with a voltage level of 0.6 / 1KV and below. Its simple structure, convenient installation, and maintenance, low-cost and large transmission capacity are widely used in power transmission and distribution lines of various voltage levels. At the same time, it also has a certain anti-corrosion ability, and it is also used in coastal areas or places with special geographical features.
Conductor: Aluminum, Aluminum Alloy, Copper
Insulated: XLPE, PVC, HEPE
Core: three core, four core
IEC 61089, BS 7870, DIN 48201, ASTM B399, BS EN50183, NFC33-209.

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CU(AL) / XLPE / SWA(STA) / PVC Power Cable — Voltage Level 0.6 / 1kv

XLPE insulated armored power cable has higher electrical strength, mechanical strength, resistance to aging, environmental stress, and chemical resistance. It has a simple structure and high operating performance, and can be placed for a long time without being restricted by drops. It is suitable for power transmission, construction, factory, communication, and other fields. Furthermore, it can completely replace oil-impregnated paper insulated power cables and partially replace PVC insulated power cables.
Conductor: Copper, Aluminum
Insulated: PVC, XLPE
Core: one, two, three, four, five(core)
IEC 60502, IEC 60228, (IEC 60332-3 for FR-type only).

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Medium Voltage Cable 3.5kv to 35kv

ZMS Airport Lighting Cable FAA L-824 Type B Unshielded (shielded) is suitable for a rated voltage of 5kv. Mainly used for series connection of transformer and current regulator of the airport lighting system, suitable for taxiway, runway, navigation, navigation aids, and obstacle lighting, etc. Also, it can be installed in conduit and direct burial.
Conductor: Stranded bare or tinned copper conductor
Insulated: ERP
Sheath: CPE/PVC
Shield: Tinned copper tape or unshielded
FAA L-824 Type B, ICEA S-96-659, NEMA WC71.

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Copper(Aluminum) Wire Armored XLPE Insulated Cable — Voltage Level 3.6-35kv

ZMS medium voltage cables are suitable for use in power distribution networks and also for connection to power generation units as well as equipment and industry. It can be buried directly underground, indoor and outdoor, and in cable ducts.
Rated voltage
Uo/U: 3.6/6kV, 6/10kV(11kV), 12/20kV(24kV), 19/33kV, 26/35kV(35kV).
Conductor: Copper, Aluminum
Insulated Screen: Semi-conductive XLPE
Single-core: AWA (Aluminum Wire Armored)
Multicore: SWA (Steel Wire Armored)
Sheath: PVC
DIN VDE 0276-620, HD 620 S1, DIN/BS EN 60228,BS EN/IEC 60332-1-2

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High Voltage Cable 35kv to 220kv

Bare Aluminum Conductor Overhead Cable Wire — ACSR — Voltage Level Up to 35 KV

When the bare aluminum conductor is used as an overhead cable, especially in the form of steel core aluminum stranded wire (ACSR), it is widely used in overhead power transmission lines. It is the most cost-effective and high-power transmission product.
Conductor: Bare Aluminum Conductor Steel Reinforced
Insulated: By air
IEC61089, ASTM B 232, DIN48204, BS 215 Part 2

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High Voltage Underground Power Cable — Voltage Level 35 kv-220 KV

ZMS high-voltage cables are used for high-voltage power transmission. It is suitable for most large-scale power transmission needs such as power stations, outdoor, underground, and underwater cable pipes, etc.
Rated voltage
Uo/U: 36/64kv, 48/66kv, 64/110kv, 110/220kv, 127/220kv
Conductor: Copper, Aluminum
Insulated Screen: Extruded semi-conductive XLPE
Armored: SWA (Steel Wire Armored),
Core: Single core, Three core
Sheath: HDPE, PVC
IEC 60840, HRN HD 632

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Performance Analysis

All voltage cables have different structural elements, they have different combinations of one or more conductors, insulation materials, sheaths, and armors. High-voltage cables and low-voltage cables differ in that they have an additional inner layer in the insulation jacket to control the electric field around the conductor. And the shielding layer of the conductor can surround each insulated conductor, which can balance the stress on the cable insulation layer, prevent it from interfering with external equipment, and prevent external electric or magnetic fields from entering the cable.


If you don’t know how to choose the products you need, or don’t find the cable type and size you need on this page, don’t worry. Contact us and send us your requirements, we can help you choose the right cable. You can provide us with the following information: cable voltage, conductor material, insulation and sheath material, shield type, armor type, etc. or you can provide us with cable installation environment, application requirements, etc. We will serve you wholeheartedly. ZMS Cable Supplier wire and cable manufacturers have evolved over the years. It adheres to the business philosophy of unity, pragmatism, integrity and innovation. It has established a complete quality assurance system, also has multiple quality certificates: ISO 9000, ISO 9001, ISO14000, ISO14001, ISO18000, CE, IEC, BS, NFC, ASTM, DIN, etc.

Service of ZMS Company

Over Productions Service

ZMS has a wide range of cable and conductor products for you to choose from. We will provide caring services and professional project solutions for everyone who needs them.

Quality Certification Services

ZMS cable products are manufactured according to GB, IEC, BS, NFC, ASTM, DIN and other international standards. Our technical team can customize cable products that meet your requirements according to your need.

Profession Customer Service

ZMS provide free professional consulting services to provide you with one-stop project solution services and rapid product delivery solutions.

Delivery And Shipping Services

While we ZMS provide high quality cables, we also provide good delivery solutions. While ensuring the safe delivery of products, we provide the best packaging and transportation solutions, greatly reducing customers’ transportation costs.

Packaging of ZMS

ZMS cables packaging are provided in the form of wooden reels, corrugated boxes and coils. The cable ends are sealed with BOPP self-adhesive tape and a non-hygroscopic sealing cap to protect the cable ends from moisture. We can print the required marks on the outside of the barrel with waterproof material according to customer requirements.

    We Provide High Quality Products and The Most Professional Cable Accessories Project Solutions.

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