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Extension Cord OEM

Our company mainly produces timing socket, wire and cable, wire reel, lamps and steel pipes. At present, our company has obtained VDE/CE/GS/S/D/FI/N/ROHS/REACH and other related certifications.


  • Cause

    To create an honest enterprise for the responsibility To build

  • Vistas

    Let every employee work happilyTo be a sustainable business excellence with the integrity of the enterprise image deeply

  • Core Values

    Run the business with integrity Give back to society with a loving heart

OEM Power Extension Cord Manufacturers

Zhejiang Shuangyang Group Co., Ltd. was established in 1986, is famous China Power Extension Cord Manufacturers and OEM Extension Cord Factory, one of the star enterprises of Ningbo City in 1998, and approved by ISO9001/14000/18000.
We are located in Cixi, Ningbo City, which is only one hour to Ningbo harbor and airport, and two hours to Shanghai.
Till now, the registered capital is over 16 million U.S. dollars. Our floor area is about 120,000 sqm, and our construction area is about 85,000 sqm. In 2018, our total turnover was 80 million U.S. dollars.
We have ten R&D persons and over 100 Qcs to guarantee quality, each year, we design and develop over ten new products acting as a great manufacturer. Our main products are timers, sockets flexible cables, power cords, plugs, extension sockets, cable reels, and lighting.


We enjoy a good reputation among our customers. We are always focused on protecting the environment and human safety. Improving the quality of life is our ultimate goal.


Industry Knowledge Extension

What precautions should be taken when connecting extension cords to high-power electrical equipment?

When connecting high-power electrical equipment, the use of extension cords requires special attention to a series of key considerations to ensure safe and reliable power transmission. First, make sure the extension cord you choose meets the current needs and power requirements of your device. High-power electrical equipment usually requires higher current transmission. Therefore, the conductor cross-sectional area and current capacity of the extension cord must be sufficient to prevent cable overload and overheating. To choose an extension cord that complies with international, national or regional electrical standards, ensure that its plug and match the outlet to the device and power port to prevent safety issues caused by mismatches.
The length of the extension cord is also a factor to consider when connecting high-power devices. Excessively long extension cords can cause voltage drop and power loss, so choose an extension cord of appropriate length to keep the voltage level within the requirements at the device end.
The insulation of your extension cord is also crucial. Because high-power equipment typically produces higher currents, it is important to ensure that extension cord insulation effectively protects against safety risks such as electric shock and fire.
During the connection process, ensure that the connection between the plug and socket is firm and reliable to avoid problems such as unstable current, sparks, and equipment damage caused by poor contact or improper plugging and unplugging.
In addition to the above points, you also need to pay attention to the working environment of the extension cord. If it is used outdoors or under harsh conditions, the extension cord should be waterproof and dustproof to ensure that the device can operate safely in various environments.
In addition, regularly check the appearance and electrical performance of the extension cord to ensure there is no wear, cracks or other damage, and to avoid excessive bending and stress. When using extension cords, follow the equipment manufacturer's instructions and safety recommendations to ensure that all connections and Operations comply with relevant standards and regulations.
All in all, when connecting high-power electrical equipment, careful selection and correct use of extension cords is the key to ensuring safe, stable and efficient power transmission. Users and operators should have a clear understanding of the performance characteristics of the equipment and extension cords and always follow relevant electrical safety standards and regulations.