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  2. Acting as a direct sales channel for the parent company in Japan, Sumitomo Electric USA introduces newly developed technologies to diverse markets in North America. The product portfolio includes power transmission cables for utility companies, optical fiber cables for the telecommunications industry, heatsinks for the industrial market, air ...

  3. Sumitomo Electric U.S.A., Inc. (SEUSA) serves North American customers in various industries, including electric power, data communications, automotive, electronics manufacturing, medical devices, and more. An overview of our diverse portfolio of products is provided on this site for reference.

    • High-Voltage DC Cable
    • High-Voltage AC Cable
    • Overhead Conductors
    • Cable Accessories
    • Distributed Temperature Sensing System

    For HVDC applications, we offer fluid-filled cable systems, mass impregnated (MI) cable systems, and cross-linked polyethylene (XLPE) cable systems. XLPE cable is the most recently commercialized of these cable types, and they offer benefits such as capex reduction and increased operational margins. The key features of XLPE cables include polarity ...

    We also have extensive experience with HVAC projects both underwater and underground. For underground HVAC projects, we have delivered cable installed in various ways such as direct burial, horizontal directional drilling, duct pipe installation, and vertical shaft installation. Some of the special features we have for HVAC cables include an extrud...

    We offer many types of high-quality overhead conductors in order to meet a wide range of project requirements and environmental conditions. 1. HTLS (high-temperature, low-sag) conductorsenable increases of transmission capacity by 1.6 to 2.0 times without replacement or reinforcement of existing towers, while maintaining the same sag level as conve...

    In addition to cables, we have developed many types of cable accessories to meet a wide variety of customer requirements. One example is a metal-enclosed GIS termination for outdoor termination that complies with the IEC 62271 standard, which has a Y-branch joint for XLPE and fluid-filled cables. For joints, we offer transition joints that can be u...

    OPTHERMO is a temperature sensing system that uses an optical fiber as a sensor to continuously measure temperature along the fiber. The optical fiber is embedded inside or attached to the power cable. This method is ideal for performing real-time measurements of cable temperature over a long distance with significantly high temperature and spatial...

  4. SEUSA > Materials. Sumitomo Electric produces a large array of high-quality materials for many kinds of industrial applications. Here we provide an overview of our materials for heatsinks, tungsten and molybdenum products, Celmet™ porous metal, infrared optical products, and superconductor products.

  5. OVERVIEW. Sumitomo Electric. at a Glance. (As of the end of March 2023) Our Company. We started manufacturing from the age of horse-drawn carriages and have grown. into a huge company with more than 280,000 employees. Established in. 1897. Learn more. Finance.