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Ningbo Biaoda Electric Co., Ltd.

About Us

Electrical Appliance Manufacturer

Ningbo Biaoda Electric Co., Ltd. is China Power Extension Cords Manufacturers and custom SAA extension leads factory specializing in producing Electric Main Products, such as adaptors, power strips, plugs, sockets, extension cords, cable reels and so on.

In addition, we have set up R/D department that specially engages in developing new products. Our products, especially the AC general connector series, can be widely used in PC, electronic product, electric appliances and dynamic tools. In order to supply first-class products for our customers, we have introduced advanced equipments.

We Serve Our Clients With the Our Capacity

COMING FROM CHINA, MARKETING TO THE WORLD

  • 2005

    Established

  • 20+

    Industry Experience

  • 10000

    Plant Area

  • 200

    Employee

Coming From China
Marketing To The World

International system certification, effectively consolidate the competitiveness of the enterprise.

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News

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Industry Knowledge Expansion

How does voltage drop affect the performance of extension cords?

Voltage drop occurs in electrical circuits, including extension cords, when there is a decrease in voltage as current flows through a conductor (wire). Voltage drop can have a significant impact on the performance of extension cords, particularly when dealing with longer cord lengths or higher current loads. Here's how voltage drop affects the performance of extension cords:
Reduced Voltage at the Device: As current flows through the wires of an extension cord, there is a natural resistance in the conductor that causes a voltage drop. This means that the voltage reaching the device at the end of the cord is lower than the voltage at the power source. A lower voltage can lead to diminished performance of electrical devices, especially those that require a consistent and specific voltage level to operate optimally.
Diminished Power Output: Many electrical devices, particularly power tools and appliances, require a certain amount of power (measured in watts) to function effectively. Power is the product of voltage and current (P = VI). When voltage drops, the power delivered to the device decreases, which can result in reduced performance, slower operation, or even failure to operate in the case of power-hungry devices.
Heat Generation: Voltage drop leads to increased resistance in the wires, which, in turn, can result in heat generation. The heat produced due to resistance can contribute to energy wastage and may pose a safety risk, especially if the extension cord is not designed to handle the heat. Over time, excessive heat can damage the insulation of the cord or potentially cause a fire hazard.
Motor Performance: Electric motors, such as those found in power tools or appliances, may be affected by voltage drop. Lower voltage can lead to decreased motor speed, reduced torque, and increased strain on the motor. This can result in decreased efficiency and even premature wear and tear on the motor.
Sensitive Electronics: Electronics and devices with delicate components, such as computers and entertainment systems, can be adversely affected by voltage fluctuations caused by voltage drop. Fluctuating or lower voltages may lead to unstable operation, data loss, or even damage to the sensitive electronic components.
Safety Concerns: In situations where voltage drop is severe, the performance of devices can be compromised to the point where they become unsafe to use. For instance, power tools may not function as expected, potentially causing accidents or injuries due to unexpected behavior.
To mitigate the effects of voltage drop when using extension cords, consider the following:
Choose a thicker wire gauge (lower AWG number) extension cord to minimize resistance and voltage drop.
Select an extension cord that matches the power requirements of the devices you plan to connect.
Keep the length of the extension cord as short as possible to minimize voltage drop.
Use heavy-duty extension cords for power-hungry devices or longer distances.
Avoid daisy-chaining multiple extension cords together, as this can exacerbate voltage drop.
Overall, understanding and managing voltage drop is essential for maintaining the optimal performance and safety of devices connected to extension cords.

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