China Power Cable Manufacturers Suppliers Factory - Wholesale Power Cable for Sale

Why Choose Us

01/

Wide Product Range
The main production and sales of copper core cable, aluminum core cable, new energy charging station cable of products.

02/

Quality Assurance
The entire production and operation process of the company is strictly in accordance with the requirements of CE certification, CCC certification, Rhine certification, 9001 certification, 14001 certification, 45001 certification and quality management system standards, the implementation of comprehensive quality control, so as to ensure product quality.

03/

Wide Range of Applications
Our products are widely used in Industrial production, people's work, home life, daily travel, etc.

04/

OEM & ODM Available
The company can also accept OEM, ODM cooperation.

What is Power Cable

A power cable is an electrical cable, an assembly of one or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power. Power cables may be installed as permanent wiring within buildings, buried in the ground, run overhead, or exposed. If you want to know the specifications and prices of Power Cable, please contact us!

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Advantages of Power Copper Cable

Electrical Conductivity
Electrical conductivity measures how effectively a material allows electric charge to flow. This property is crucial in electrical wiring systems. Copper, known for its exceptional conductivity, has a resistivity of 16.78 nΩm at 20 degrees Celsius. Copper's high conductivity is explained by solid-state metal theory: in a copper atom, the conduction band, or the outermost 4s energy level, is only partially filled, allowing numerous electrons to facilitate electric current. When an electric field is applied to a copper wire, electron movement increases towards the positive end, generating an electric current.
Electrons in a conductor encounter resistance due to collisions with impurities, lattice ions, vacancies, and imperfections. The average distance between these collisions is known as the "mean free path," which is inversely proportional to the metal's resistivity. Copper, with its high conductivity, is the standard for comparison with other conducting materials. Electrolytic-tough pitch (ETP) copper, which contains a minimal amount of oxygen, is commonly used in electrical applications due to its excellent conductivity.
While many metals have lower density than copper, they require larger cross-sectional areas to conduct the same amount of charge. For example, aluminum, which has 0.6 times the conductivity of copper, needs a cross-sectional area 0.56 times larger than copper to carry the same current. This can be a drawback in applications where space is limited.
Silver surpasses copper in electrical conductivity, being 1.06 times more conductive on the International Annealed Copper Standard (IACS) scale. Silver's electrical resistivity is 15.9 nΩm at 20 degrees Celsius.

Tensile Strength
Tensile strength measures the maximum force required to pull a material, such as a structural beam, rope, or wire, to the point of breaking. It represents the highest tensile stress that the material can withstand before failure.
The high tensile strength of copper makes it resistant to necking, stretching, breaking, and creep, which helps prevent service interruptions and failures. However, copper is heavier than aluminum for conductors with the same current-carrying capacity. This increased weight can offset its high tensile strength advantage.

Ductility of Copper
Ductility refers to a material's ability to deform under tensile stress, often demonstrated by its capability to be drawn into a wire. This property is crucial in metalworking because materials that break or crack under stress cannot be effectively rolled, hammered, or drawn. Copper exhibits high ductility, surpassing most other metal conductors except silver and gold. Its exceptional ductility allows copper to be drawn into very fine wires with precise tolerances.

Ease of Installation
The hardness, flexibility, and strength of copper make it straightforward to work with. Copper wire can be installed easily without requiring special tools, pigtails, washers, or joint compounds. Its flexibility simplifies joining, while its hardness ensures that connections remain secure. Copper can be twisted or bent without breaking and can be terminated and stripped during installation with minimal risk of damage. Furthermore, it can be terminated without the need for specialized fittings or lugs. These qualities combined make copper an ideal material for manufacturing power cables.

Types of Power Cable

Low Voltage Power Cables
Low voltage power cables are designed for systems with voltages up to 1,000 volts. These cables are commonly used in residential and commercial settings for applications such as wiring homes, offices, and small businesses.
They are essential for connecting electrical outlets, lighting systems, and appliances to the main power supply. Their insulation provides protection against electrical shocks and short circuits, ensuring safe and reliable operation in everyday environments.

Medium Voltage Power Cables
Medium voltage power cables are used for systems with voltages ranging from 1,000 volts to 35,000 volts. These cables are typically found in industrial and urban infrastructure applications, such as powering factories, industrial plants, and public utilities.
They are designed to withstand higher electrical loads and harsh environmental conditions, providing a stable and efficient power supply to critical systems and infrastructure.

High Voltage Power Cables
High voltage power cables are designed for transmitting electrical power at voltages above 35,000 volts. These cables are crucial for power transmission and distribution networks, connecting power plants to substations and distributing electricity across vast distances.
High voltage cables are built to handle extremely high electrical loads and are engineered to minimise energy loss and withstand environmental stressors, ensuring the efficient delivery of electricity over long distances.

Armoured Power Cables
Armoured power cables are designed with a protective metal sheath that shields the internal conductors from mechanical damage. This robust construction provides excellent resistance to physical impacts, making them ideal for harsh environments.
The metal armour also offers enhanced protection against environmental factors such as moisture, chemicals, and extreme temperatures, ensuring long-term durability and reliability.
Armoured power cables are commonly used in underground installations, where they are buried directly in the ground or placed in ducts. They are also suitable for use in industrial settings, construction sites, and other environments where the cables may be exposed to physical stress and potential damage.

Flexible Power Cables
Flexible power cables are designed with highly pliable conductors and insulation materials, allowing them to bend and flex without breaking. This flexibility makes them ideal for applications where the cables need to move or be routed through tight spaces. These cables are also lightweight and easy to handle, simplifying installation and maintenance.
Flexible power cables are widely used in portable devices, movable machinery, and temporary power setups. They are essential in environments such as construction sites, events, and mobile units, where equipment needs to be frequently relocated or adjusted.

Submersible Power Cables
Submersible power cables are specifically engineered to operate in wet and underwater environments. They feature waterproof insulation and robust sheathing to prevent water ingress and protect the internal conductors. These cables are also designed to resist corrosion and other forms of degradation caused by prolonged exposure to water.
Submersible power cables are used in a variety of applications, including underwater lighting, fountain pumps, marine equipment, and sewage treatment plants. Their ability to function reliably in wet conditions makes them indispensable for maintaining electrical connectivity in aquatic environments.

Application of Power Cable

Construction and Engineering Cable

Building construction is a complete system and electrical cables are one of the important components of the system. The cable lines allow the electrical system to function properly and guarantee the success of the project.

Light cable

Light cables are suitable for use in night construction, construction in the mines, offshore lighting, road lighting and other situations where a stable lighting supply is required.

Network communication

Communication cables are used for digital communication and signal transmission. ZMS communication cables include aerial and submarine coaxial network cables and fiber optic cables..

Submarine cable

ZMS submarine cables are divided into submarine communication cables, submarine power cables and marine cables. Submarine power cables are mainly used for the transmission of high-power electricity under water.. Submarine communication cables have a high degree of confidentiality.

Airport Cable

Airport lighting cables are widely used to interconnect transformers and dimmers in airport lighting systems.. ZMS can offer bespoke airport cable solutions.

Solar and Wind Cables

New power cables mainly include solar cables and wind cables. ZMS new energy cables from zms have good UV resistance, to heat and cold. They are suitable for extended use in outdoor environments. It also offers the photovoltaic solar panels.

Cable for Electric Cars

Electric vehicle charging cables are used to supply power to charging stations and to charge electric vehicles.. ZMS EV charging cable has a good concentricity of more than 80%. This product is resistant to high voltage and has stable performance.

Cable for Mining and Tunnels

In mine power supply systems, shielded cables are generally used for high voltage supply lines. Its failure rate is much lower compared to the used low voltage. ZMS mining cables are all flame retardant.

Cable for Railway and Metro

Railway cables are suitable for the transmission of railway signals, acoustic signals or control circuits of automatic signaling devices with a rated voltage of 500 V AND of 1000 V DC is inferior.

How to Choose Power Cable

Determine Load Characteristics

First, you need to assess the electrical load characteristics of the system. Consider factors such as the type of load (resistive, inductive, or capacitive), the magnitude of the load (expressed in watts or kilowatts), and the expected current flowing through the circuit.

Consider Cable Installation Conditions

Take into account the environmental conditions in which the cable will be installed. Factors such as ambient temperature, soil temperature, surrounding materials, and cable grouping should be considered. Higher temperatures or confined spaces can affect the cable's ability to dissipate heat, which may require larger-sized cables.

Voltage Drop Limit

Establish the acceptable voltage drop for the specific application. Voltage drop occurs when electrical energy is dissipated as heat due to the cable's impedance. Voltage drop is typically limited to a certain percentage (e.g., 3% or 5%) to ensure proper operation of the connected devices. Higher voltage drops can lead to decreased performance, increased energy consumption, and potential damage to sensitive equipment.

Cable Sizing Calculations

Cable sizing calculations involve determining the appropriate cross-sectional area of the cable based on the load, voltage drop limit, and installation conditions. These calculations consider factors such as the cable's resistance, reactance, and current-carrying capacity.

Cable Resistance: The resistance of a cable is determined by its length, material (e.g., copper or aluminum), and cross-sectional area. Higher resistance results in more significant voltage drops. It is essential to minimize resistance by selecting cables with lower resistivity and larger cross-sectional areas.

Cable Reactance: Reactance is the measure of opposition to alternating current flow due to the inductive and capacitive properties of the cable. It influences the voltage drop and needs to be considered in cable sizing calculations for AC circuits.

Current-Carrying Capacity: The current-carrying capacity of a cable is determined by its ability to dissipate heat generated by the flowing current. It depends on factors such as conductor size, insulation material, installation method, and ambient temperature. Adhering to the current-carrying capacity limits ensures the cable operates within safe temperature limits.

Consult Cable Sizing Tables and Standards

Industry standards, such as the International Electrotechnical Commission (IEC) or the National Electrical Code (NEC), provide cable sizing tables based on various parameters like current, voltage, and installation conditions. These tables aid in selecting the appropriate cable size based on the calculated requirements.

How to Maintain Power Cable

Inspect cables and connectors regularly
Before you start cleaning your expeditionary power cables and connectors, it is essential to inspect them thoroughly. Check for any signs of damage, such as cuts, abrasions, and punctures. Also, ensure connectors are free from dirt, debris, and corrosion. If you identify any issues, address them immediately. Crimp cables can repair some damage, but in severe cases, you may need to replace the original cables or connectors.

Disconnect the cables and connectors before cleaning
Before you start cleaning your expeditionary power cables and connectors, disconnect them from the power source. Failure to do so can result in electric shock or other injuries. Also, avoid touching the cables or connectors with wet hands or when standing on wet surfaces.

Use the right cleaning products
To clean your expeditionary power cables and connectors effectively, focus on the correct cleaning products. Avoid harsh chemicals, such as bleach or ammonia, as they can damage your connectors. Instead, use mild detergent and warm water. You can also use a soft-bristled brush to remove any dirt or debris accumulated over time.

Dry the cables and connectors thoroughly
After cleaning your expeditionary power cables and connectors, dry them thoroughly. Use a soft cloth or towel to wipe the cables and connectors and remove excess water. Avoid using a hairdryer or any other heat source to dry your equipment, as this can damage the insulation.

Lubricate the connectors
Expeditionary power connectors can accumulate dirt and debris over time in the various industries they operate in, which can affect their performance. To ensure that your connectors are in optimal condition, lubricate them regularly. Use a silicone-based lubricant to lubricate the connectors, as this will help protect them from corrosion and damage. However, avoid using too much lubricant, as it can attract dirt and debris, making the connectors more prone to damage.

Store the cables and connectors properly
Proper storage is essential for maintaining the longevity and performance of your expeditionary power cables and connectors. Store the cables and connectors in a dry, cool place, away from direct sunlight and heat sources. Also, keep the cables and connectors away from any sharp objects or abrasive surfaces that may damage them.

Protect the cables and connectors during transportation
Expeditionary power cables and connectors are often transported from one location to another, exposing them to various hazards, such as vibrations, impacts, and temperature changes. To protect your cables and connectors during transportation, use a suitable carrying case or container. Ensure the carrying case or container is sturdy enough to protect the cables and connectors from any impacts or vibrations. Also, use protective padding or foam to cushion the equipment inside the carrying case or container.

Our Factory

Hebei Lineng Cable Co., Ltd. has more than 20 years of industry experience, 100 employees, Ten thousand square meters, daily production capacity of 500,000 meters, annual sales revenue of 200 million yuan. Is a professional production, power cable and wire enterprises. The main production and sales of 35KV, 15KV, 1KV, 750V copper core cable, aluminum core cable, new energy charging station cable, low smoke zero halogen cable, sheathed cable/shielding cable, control cable, high voltage cable, rubber sheathed cable, shielding machine cable, aluminum alloy cable, mine insulated copper cable, home laying cable and special cable hundreds of series, thousands of specifications of products.

The company can also accept OEM, ODM cooperation. Since its establishment, the company has adhered to technological progress and concept innovation, constantly strengthened internal management, advanced with the times, and formulated the quality policy of "customer-centric, based on production management, continuous improvement of quality system, and improvement of customer satisfaction products". Strictly in accordance with national and international standards to organize production, the implementation of raw material procurement to finished product delivery of the whole process control. The entire production and operation process of the company is strictly in accordance with the requirements of CE certification, CCC certification, Rhine certification, 9001 certification, 14001 certification, 45001 certification and quality management system standards, the implementation of comprehensive quality control, so as to ensure product quality.

Our Certificate

productcate-550-450

Frequently Asked Questions

Q: What uses a power cable?

A: An AC (Alternating Current) power cable cord is a type of electrical cable used to transmit alternating current electricity from a power source, such as a wall outlet, to an electrical device. AC power cords are commonly used with computers, monitors, printers, audio/visual equipment, and various household appliances.

Q: What are the different types of power cables?

A: The different types of power cables include AC (Alternating Current) power cables, DC (Direct Current) power cables, high voltage cables, low voltage cables, and flexible cables.

Q: What materials are used in power cables?

A: Power cables are typically made from copper or aluminum, which are excellent conductors of electricity, and are insulated and protected by materials like PVC (Polyvinyl Chloride), rubber, or XLPE (Cross-Linked Polyethylene).

Q: How do I choose the right power cable for my needs?

A: To choose the right power cable, you need to consider factors such as voltage requirements, current carrying capacity, environmental conditions, cable length, and flexibility.

Q: What is the difference between AC and DC power cables?

A: The difference between AC and DC power cables lies in their design for specific applications, with AC cables used for alternating current where the direction of electricity changes periodically, and DC cables used for direct current where electricity flows in one direction.

Q: Can I use an AC power cable for a DC application, and vice versa?

A: It is generally not recommended to use an AC power cable for a DC application or vice versa, unless the cable is specifically rated for both, as using the wrong type could lead to overheating, electrical interference, or fire hazards.

Q: What are the common sizes of power cables?

A: Common sizes of power cables range from 1.5 mm² (or 14 AWG) for light household use to much larger sizes like 400 mm² (or 1 AWG) for industrial applications.

Q: What safety precautions should I take when handling power cables?

A: When handling power cables, you should ensure the power is off, use insulated tools, inspect cables for damage, follow local electrical codes, avoid overloading the cable, and use proper grounding to prevent electric shock.

Q: What is the lifespan of a power cable?

A: The lifespan of a power cable depends on the quality of the materials, the conditions of use, and how well it is maintained, with high-quality cables often lasting for several decades.

Q: How do I properly dispose of old power cables?

A: To properly dispose of old power cables, you should follow local regulations, recycle them if possible, and avoid throwing them in regular trash due to potential environmental harm.

Q: What is the difference between shielded and unshielded power cables?

A: The difference between shielded and unshielded power cables is that shielded cables have an additional conductive layer to reduce electrical interference, making them suitable for environments with high electromagnetic noise, while unshielded cables lack this protection.

Q: What is voltage drop, and how can I prevent it?

A: Voltage drop occurs when the voltage at the end of a cable is lower than at the source due to resistance, and you can prevent it by using cables with a larger cross-sectional area, reducing the length of the cable run, or using higher-quality materials with lower resistance.

Q: Can power cables be installed underground?

A: Yes, power cables can be installed underground, but they must be designed specifically for this purpose, with added insulation and waterproofing to protect against environmental factors.

Q: What is the difference between single-phase and three-phase power cables?

A: The difference between single-phase and three-phase power cables is that single-phase cables are used for residential and light commercial applications, carrying one alternating current, while three-phase cables are used for industrial applications and can carry three alternating currents that are out of phase with each other.

Q: What are armored power cables?

A: Armored power cables have an additional protective layer, typically made of steel wire or tape, which provides mechanical strength and resistance to damage, making them suitable for harsh environments or underground installations.

As one of the leading power cable manufacturers and suppliers in China, we warmly welcome you to wholesale bulk high quality power cable in stock here from our factory. Contact us for free sample.

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