Why Choose Us
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.
Wide Product Range
The main production and sales of copper core cable, aluminum core cable, new energy charging station cable of products.
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.
Wide Range of Applications
Our products are widely used in Industrial production, people's work, home life, daily travel, etc.
OEM & ODM Available
The company can also accept OEM, ODM cooperation.
What is High-voltage Power Cabl
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 High-voltage Power Cable, please contact us!
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Advantages of High-voltage Power Cable
Reduction in Power Loss
Power from traditional sources like coal-fired plants is usually produced far away from large cities. These power plants are built in areas that are rich in the resources used to create power, but it means the power needs to be transported long distances before it can be used. Australia uses large steel towers that transmit power at high voltages to take care of this work, primarily because the higher voltage reduces the amount of power lost in transmission.
Wires of every size have some amount of resistance simply due to the copper and aluminium they are made from. Over great distances, this resistance adds up and the amount of power lost as heat can be expensive for the energy provider. Transmitting power at high voltages is the simplest way of reducing these losses. Increasing the voltage of the electricity means the current can be decreased and the same amount of power can be transmitted with lower losses due to the resistance of wiring and other conductors.
Lower Infrastructure Costs
The size of the cabling needed to transmit power is proportional to the amount of current that will pass through it. So, when transmitted at higher currents, larger wire sizes are used. High voltage cabling can be a relatively small diameter thanks to the low currents passing through.
Over large distances, sometimes hundreds or thousands of kilometres, the cost of power cabling quickly stacks up. When added to the cost of substations and transformers, the size of the cabling makes a large difference to infrastructure costs. Even transmission towers would need to be engineered to handle larger wire sizes. With high voltage cabling already weighing in at several tonnes per kilometre, supporting thicker gauges of wire would require far more substantial transmission towers. Using high voltages and thinner gauges of wire is cheaper for power producers and infrastructure suppliers, as well as for end consumers wanting affordable electricity.
Increased Power Transmission Efficiency
Transmitting power at high voltage and low current makes the entire system more efficient. Not only does it reduce infrastructure costs, but more power can be transmitted over larger distances. When designing high voltage power systems, engineers account for the distance travelled and the expected losses due to resistance. In a system where more power is lost between the power plant and the substation, the power plant would need to supply more power to keep up with demand. By reducing the amount of power lost in transmission, power plants can produce less of the electricity that substations need to pass onto paying consumers.
Input Voltage
The input power that is specified for a certain model is determined by various factors such as the output power capability of the supply. Generally, low power high voltage supplies which have outputs ranging between 1W to 60W use a DC input voltage of 24Vdc or 28Vdc. A high power module, usually over 100W and rack mounted models operate from an AC line source. They are normally designed to accept power line characteristics usually available at the user’s location. The standard voltage in many parts of the world is 220Vac at 50Hz.
Output Voltage
High voltage power supplies are designed to operate continuously at the maximum output voltage stated in the data sheet. Laboratory bench models as well as high power rack units are usually adjustable over the voltage range from zero to the maximum output voltage which is specified in the datasheet. However modular supplies might have a preset output voltage or a narrow adjustment range. Generally it is not cost effective to specify a power supply with an output voltage which is greater than 20% over the maximum voltage which is actually required in a particular application.
Output Current
High voltage power supplies are designed to operate continuously at the current specified in the datasheet. Overload current is prevented from increasing beyond 110% of the maximum rated output current by current limiting, which is usually built into the design. Most high power racks and modules have current regulations available.
Ripple – The total ripple is usually specified as the rms or the peak-to-peak value of the line frequency and oscillator frequency components combined. It’s expressed as a percentage of the maximum output voltage.
Stability
Stability is generally less than 5ppm. Careful choice of a control amplifier can eliminate offset errors. This would mean that the voltage divider and the current sense resistor would be the only critical components affecting output voltage and current stability. These two components are sensitive to temperature as a result they are located away from hot components and are selected to operate only at a fraction of their power capability.
Stored Energy
Stored energy at the output of a high voltage power supply can damage certain types of loads and can be harmful to personnel.
Pulsed Operation
Some high voltage power supplies are designed for DC operation and some are used in pulsed power applications. Pulsed loads can be divided into three categories: very narrow pulses, longer pulses and very long pulses.
Line Regulation
The line regulation for most high voltage power supplies is better than 0.005%.
Load Regulation
The load regulation for most high voltage supplies is better than 0.01%.
How to Choose High Voltage Power Supplies
Assess Your Project’S Specific Requirements
To select the appropriate high voltage wire, evaluate factors such as voltage level, current capacity, and load requirements. Understand the system specifications and performance expectations to choose a cable that meets your project’s needs.
Analyze Conductor Materials and Their Properties
Copper and aluminum are the most common conductor materials in high voltage cables. Copper offers higher conductivity, better thermal stability, and greater mechanical strength. However, it is also more expensive than aluminum. Conversely, aluminum is lighter and more cost-effective but has lower conductivity and mechanical strength. Consider these factors when deciding on the conductor material.
Examine Insulation Materials and Their Characteristics
Insulation is vital in HV cables, as they affect overall performance, safety, and durability. Common insulation materials include PVC, XLPE, and EPR each with varying dielectric strength, thermal properties, and chemical resistance. Compare the characteristics of different insulation materials to determine the best choice for your application.
Calculate The Optimal Cable Cross-Sectional Area
Cable size directly impacts current-carrying capacity and voltage drop. To calculate the required cable cross-section, consider system parameters like voltage, current, and load requirements.
Investigate Installation Methods and Environmental Considerations
Different installation methods underground, overhead, or in conduit can influence cable selection. Environmental factors like temperature, moisture, and chemical exposure can also affect cable performance. Thus, evaluate the installation method and environmental conditions to ensure you choose a cable that will perform optimally in your specific situation.
Understand Industry Standards and Certifications
Adhering to industry standards and certifications is essential for ensuring safety, reliability, and compliance. Familiarize yourself with common standards such as IEC and IEEE, and consider their relevance to high voltage wire selection. Selecting cables that meet these standards can provide peace of mind and help avoid potential issues in the future.
Collaborate With Industry Experts and Suppliers
Partnering with experienced cable suppliers or engineers can significantly benefit your project. These professionals can offer valuable insights and recommendations based on their high-voltage cable industry expertise. Seek referrals, research, and attend industry events to find knowledgeable professionals.
How to Maintain High-voltage Power Cable
Check the cables and connectors for overheating
Checking for overheating is crucial to maintaining expeditionary power cables and connectors. Overheating can occur for various reasons, such as overloading, poor connections, and insulation breakdown. When cables and connectors overheat, they can become damaged, and in extreme cases, they can even cause fires.
To check for overheating, you should perform visual inspections regularly. Look for discoloration, melting, or deformation on the cables and connectors. If you notice any of these signs, it could indicate that the cables and connectors encountered excessive heat.
Another way to check for overheating is to use a thermal imaging camera. A thermal imaging camera can detect heat signatures and identify areas where the temperature is higher than normal. These cameras detect overheating in hard-to-reach areas or when multiple cables and connectors are in use.
If you suspect your cables and connectors are overheating, you should take immediate action. First, disconnect the affected cables and connectors from the power source. Furthermore, allow them to cool down before inspecting them further. If the cables or connectors are damaged, replace them immediately.
To prevent overheating in the future, make sure that you are not overloading the cables and connectors. Check the power requirements of your devices and ensure that they are within the capacity of your equipment. Ensure the connections are tight and secure, with the insulation in good condition.
Checking for overheating is crucial in maintaining expeditionary power cables and connectors. By performing visual inspections and using thermal imaging cameras, you can detect overheating and prevent damage and potential hazards. If you suspect that your cables or connectors are overheating, take immediate action to prevent further damage. By taking these steps, you can ensure that your cables and connectors remain in optimal condition and deliver the power you need when you need it.
Avoid bending the cables sharply
Expeditionary power cables can withstand a certain amount of bending, but excessive bending can damage the insulation and conductors. When routing or handling the cables, avoid sharp bends and kinks. Instead, use gentle curves and bends to ensure the cables maintain form and integrity.
Use cable ties or velcro straps to organize the cables
Expeditionary power cables can become tangled and messy, which can make it difficult to identify and troubleshoot issues. To prevent this, use cable ties or velcro straps to organize the cables neatly. This will make it easier to identify and address any issues that may arise.
Use heat shrink tubing to protect the connectors
Expeditionary power connectors can be prone to damage and corrosion, especially when exposed to harsh environments. To protect the connectors, use heat shrink tubing to cover them. Heat shrink tubing is a flexible, heat-resistant material that can provide an additional layer of protection against moisture, dirt, and other hazards.
Use a multimeter to test the cables and connectors
To ensure that your expeditionary power cables and connectors are in optimal condition, use a multimeter to test them regularly. A multimeter is a tool that can measure various electrical parameters, such as voltage, current, and resistance. By testing the cables and connectors, you can identify any issues, such as loose connections or faulty conductors, and address them before they cause any problems.
Label the cables and connectors
Expeditionary power cables and connectors can be challenging to identify, especially when multiple cables and connectors are in use. To prevent confusion, label the cables and connectors clearly. Use a label maker or a permanent marker to label your equipment with their respective names, voltages, and other relevant information. Doing this will make it easier to identify and troubleshoot any issues that may arise.
Maintaining and cleaning expeditionary power cables and connectors is essential for ensuring they remain in optimal condition and perform their intended functions effectively. The process of cleaning them is one thing you should consider before purchasing. By following the tips outlined in this guide, you can protect your cables and connectors from damage, extend their lifespan, and prevent costly downtime. Remember to inspect, clean, and maintain your cables and connectors regularly, and address any issues promptly. By doing so, you can ensure that your expeditionary power cables and connectors are always ready to deliver the power you need when you need it.
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
Frequently Asked Questions
As one of the leading high-voltage power cable manufacturers and suppliers in China, we warmly welcome you to wholesale bulk high quality high-voltage power cable in stock here from our factory. Contact us for free sample.
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