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This section provides an overview for insulated wire as well as their applications and principles. Also, please take a look at the list of 13 insulated wire manufacturers and their company rankings. Here are the top-ranked insulated wire companies as of December, 2024: 1.TPC Wire & Cable Corp., 2.Watteredge, LLC, 3.WENDT CORPORATION.
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Insulated wire is an electric wire that has been treated with insulation.
Electric power, supplied by electric power companies, is transmitted to various locations at ultra-high voltages called extra-high voltage. The special high-voltage power lines are on steel towers several tens of meters high and are bare because there is no danger of people coming into contact with them. Therefore, there is a risk of electric shock if a person comes in contact with the tower touching it.
In contrast, power is transmitted to ordinary homes and commercial facilities at high-voltage or low-voltage. These are protected by insulating materials because of the danger of accidental contact by people. These are called insulated wires.
A familiar example is wiring on utility poles. You can see black wires laid overhead on utility poles erected on the street. They appear black because they are insulated with cross-linked polyethylene or rubber. Insulated wire is also commonly used for wiring laid within the walls of ordinary homes.
Also, when you disassemble a household appliance, you may see vinyl-coated wires inside. This is a type of insulated wire called vinyl wire. The outlet cords used in dryers and other appliances are also insulated wire.
Insulated wire is rarely seen in ordinary households.
Insulated wires are divided into shielded and unshielded wires.
First, unshielded wires have a long, thin copper at the center that serves as an electrical circuit; insulated wires called VVF cables, etc., consist of a single copper wire, while cables called VCTF, etc., consist of many thin copper wires twisted together. Regardless of whether it is a single wire or a stranded wire, the standard of the cable is called by the thickness of the internal copper wire. The thicker the wire, the more current it can carry. The thickness of the copper wire is determined by the power requirements of the terminal equipment used. As a reference, a 100V household outlet, for example, requires about 15A, and a VVF cable with a cross-sectional area of 1.6mm2 is used.
The surface of the cable is covered with an insulating coating to prevent human contact with the internal power lines. Rubber, cross-linked polyethylene, or vinyl chloride are used as the insulation coating. For household and other applications, only vinyl chloride is used. For industrial use, both cross-linked polyethylene and vinyl chloride are used to provide double insulation.
Shielded wires are made by shielding the vinyl chloride and other materials with aluminum or copper to prevent induced voltages. Generally, shielded wires are used for high-voltage applications where there is a risk of electric shock to the human body due to induced voltage. In some cases, they are also used for weak electric cables to eliminate errors caused by induction.
*Including some distributors, etc.
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Watteredge LLC is an Avon Lake, Ohio-based manufacturer of high-current conductors established in 1954. Its product portfolio includes battery & custom busbar copper connectors, water-cooled power cables, resistance welding cables, busbar systems, and laminated shunts produced through design and testing technologies such as CAD and solid works for 3D & 2D design and CNC machining. The company is ISO 9001:2015-certified and DQS 10017160-registered, serving the automotive, energy & power generation, and chemical processing industries.
WENDT CORPORATION, established in 1977 and headquartered in Buffalo, New York, is a manufacturer and supplier of scrap metal shredders and recycling solutions. Its product line encompasses Automobile Shredders, Sensor Sorters, Eddy Current Separators, Granulators, and Modular Recycling Systems, tailored to optimize material liberation and efficient recovery in the scrap metal industry. The company's products are known for its durability, and efficiency. Its products are used by scrap metal recycling companies all over the world to help them recycle scrap metal and conserve resources.
TPC Wire & Cable Corp., established in 1979, is a manufacturer of wire, cable, and connector solutions, headquartered in Macedonia, Ohio, USA. The company’s products are designed for harsh industrial environments. Their products can withstand challenges such as impact, abrasion, chemicals, and extreme temperatures. TPC's product line includes wire, connectors, power cables, welding cables, cable assemblies, cordsets, to custom solutions tailored to unique applications. They serve various industries including automotive, food, beverage, rail & transit, mining, metals, and more. Their in-house engineering expertise results in partnerships, expansions, and acquisitions across different wire and cable markets, both domestic and international.
MWS Wire Industries was established in 1968 as a manufacturer and distributor of magnet and specialty wire, and is based in Oxnard, California. The company predominantly deals in magnet, litz, plated, and insulated specialty alloy wires. These wires are used in electronics to enhance conductivity and durability and reduce losses. The aerospace, medical, automotive, and telecommunications industries use insulated specialty alloy wires. The company offers wire-sourcing solutions for its customers and also produces custom wires.
Knowde is an online marketplace connecting buyers and sellers of chemicals, ingredients, and materials. Founded in 2017 and based in Austin, Texas. The company makes buying and selling in the chemical industry easier by giving users an easy-to-use platform. Knowde offers a wide range of products, from specialty chemicals and raw materials to finished products and formulations, all available for purchase with a few clicks. With its robust search capabilities, powerful analytics, and personalized customer service.
OZG Powersports, Inc., based in Santee, California, is a supplier of high-output LED lights and light bars for vehicles. Its product range includes LED lights, light bars, motorcycle lights, marine lights, and off-road lights. These products cater to various applications from off-road vehicles to marine applications, providing high-intensity, durable lighting solutions. These products are generally used for enhancing visibility and safety in various vehicles, including off-road trucks, RVs, UTVs, golf carts, and motorcycles.
HIRAKAWA HEWTECH CORP., founded in 1948 and headquartered in Tokyo, Japan, is a manufacturer and supplier specializing in cables, electronic equipment, and medical equipment. The company's product portfolio includes high-speed cables, factory automation cables, optical converters, network equipment, and medical tubing. These products are utilized by various industries, including electronics, digital technology, information communication, broadcasting, and the medical sector. The company is ISO 14001 and ISO 9001 certified, with overseas subsidiaries in America, Mexico, Thailand, the Philippines, and Taiwan.
Tatsuta Electric Wire and Cable Co. Ltd., established in 1945 and headquartered in Higashiosaka, Japan, is a manufacturer of electric wires, electronic materials, medical products, and sensors. The company began manufacturing and selling telecommunication wires and cables in 1955. In 1981, it started manufacturing water leakage detection systems, and in 1984, it began selling bonding wire. Its telecommunications division received ISO 9001 certification in 1996, and the electric wire and cable division in 1998. The company began the production of EMI shielding film in 2003, and its product portfolio includes broadcasting cables, bonding wires, liquid leakage sensors, and functional paste.
Leoflon Electronics Industrial, established in 1987 and headquartered in Taipei, Taiwan, is a manufacturer of fluoropolymer insulated wire and tube in Asia. Its product portfolio includes Fluoropolymer Insulated Wire and Fluoropolymer Insulated Tube, employed in applications such as notebook power adaptors, mobile phone chargers, automotive electronics, industrial computers, and medical equipment. The company holds certifications like UL Certification for Single- and Multi-layer Insulated Winding Wire, VDE Certification, and RoHS Compliant Report, ensuring the quality and compliance of its products.
BizLink, established in 1996, is headquartered in Silicon Valley, USA, is a manufacturer of IT industry power cord sets. The company’s designs, manufactures, and sells cable assemblies, connectors, power cords, fiber optical passive components, and computer-peripheral products. The products are used in industry sectors worldwide including IT Infrastructure, Client Peripherals, Optical Fiber Communications, Telecom and Networking, and Electrical Appliances, among others. The company supports environmentally-conscious industries, creating quality products and services. They also specialize in offering one-stop EMS and NPI services based on customer's requests.
Connectronics Corp, founded in the United States in 1988, is a supplier of electronic connectors including high voltage interconnects, aerospace connectors, and underwater connectors for the defense industry. The company's product portfolio includes high voltage interconnect solutions designed to meet the unique requirements of high-power, defense-related applications, underwater connectors designed for subsea communication and equipment connectivity, and specialized connectors. It serves industries such as avionics, analytical instruments, medical, nuclear, radar, and oil exploration.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | TPC Wire & Cable Corp. |
24.6%
|
| 2 | Watteredge, LLC |
17.4%
|
| 3 | WENDT CORPORATION |
15.9%
|
| 4 | Knowde |
8.7%
|
| 5 | Leoflon Electronics Industrial |
8.7%
|
| 6 | MWS Wire Industries |
8.7%
|
| 7 | OZG Powersports, Inc. |
4.3%
|
| 8 | TATSUTA Electric Wire and Cable Co.,Ltd. |
4.3%
|
| 9 | HIRAKAWA HEWTECH CORP. |
4.3%
|
| 10 | BizLink Holding Inc. |
2.9%
|
Derivation Method
The ranking is calculated based on the click share within the insulated wire page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
6 | 50.0% |
|
Japan
|
4 | 33.3% |
|
Taiwan
|
1 | 8.3% |
|
India
|
1 | 8.3% |
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