Flat plugs with two round holes are a commonly used plug design found in various everyday electrical appliances. While these plugs are familiar to many, few are aware of the purpose behind their unique design. Join us as we uncover the reasons behind the addition of two extra round holes on top of these plugs.
Two Round Holes on Flat Plugs: What Are Their Purpose?
The inclusion of two rounded holes on flat plugs is primarily for safety purposes. These rounded ends enable a secure fit when inserting the plug into a socket, ensuring it tightly aligns with the raised portion inside. This secure fit promotes stability and prevents any potential looseness, thereby reducing the risk of electric shock.
Flat plugs are highly reliable and offer excellent security by securely holding the plug and minimizing the risk of exposed wires and electrical leakage. This makes them an ideal choice for households with small children.
Adding two round holes also aids in reducing friction when the plug makes contact with the socket, thus mitigating the possibility of sparking.
In addition to providing safety, the inclusion of two round holes on flat plugs offers manufacturers the advantage of sealing and convenient product inspection. Furthermore, the integration of these two small holes has proven to be highly beneficial for manufacturers, resulting in considerable savings of raw materials.
Flat plug with two round holes
Types of Plugs Used Globally
Types of Plug Adaptors: A Guide
Type A Plug
The Type A Plug is the predominant plug type used in Vietnam. It features two flat prongs with rounded holes near the joint, creating a flat plug with parallel prongs.
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This is an image of a Type B Plug.
The Type B Plug features two parallel flat prongs, each accompanied by two rounded holes adjacent to the joint. In addition, it has one longer round prong, strategically placed to prevent the device from making contact with any substance prior to connecting to the power source.
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Type C Plug
The Type C Plug is commonly used in Vietnam. This compact plug features 2 round prongs that are parallel to each other. It is typically used for low power devices that require less than 2.5 Amps of electricity.
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Type D Plug
The Type D Plug is designed with three round prongs positioned in a triangular formation, with one prong slightly larger than the other two. Although the size discrepancy is not overly pronounced, this configuration is specifically intended for use with devices requiring a power capacity of 5 Amps.
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Type E Plug
The E Plug is designed with 2 round prongs and 1 grounding pin hole. The round prongs have a length of 4.8mm and are spaced 19mm apart. This plug is capable of handling a power rating of 16 Amps.
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The following image is an illustration of a Type F Plug:
Type F Plug
The Type F Plug, also known as the Schuko plug, features two round prongs that are 4.8mm in length and spaced 19mm apart. This design closely resembles the Type E plug, but does not include a hole for a ground pin. The Type F Plug has a power rating of 16 Amps.
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Type G Plug
The Type G plug features a triangular arrangement of three prongs, forming a sturdy connection. The rectangular shape of the plug is further enhanced with the integration of a fuse for added safety and protection.
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Type H Plug
The Type H Plug is a unique plug found exclusively in Israel. It features three prongs arranged in a triangular shape, with one prong dedicated for grounding purposes. Designed with a power rating of 16 Amps, it provides a reliable and efficient power source for various electrical devices.
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Type I Plug
Type I Plug is a three-pronged electrical plug designed in a triangular shape, with flat prongs. One of the three prongs serves as the grounding prong. This specific type of plug is commonly used in countries such as Australia, New Zealand, and China.
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Type J Plug
The J Plug is designed with three prongs arranged in a triangular shape, which includes two round prongs and one grounding prong. This plug has a power rating of 10 Amps.
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Type K Plug
The Type F Plug is designed with 3 round prongs, one of which serves as a grounding prong. This plug exhibits several similarities to the Type C Plug.
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Type L Plug
The Type L Plug is designed with three round prongs aligned in a linear configuration. This particular type of plug is available in two versions, each with power ratings of either 10 Amps or 16 Amps.
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The image above showcases a Type M Plug. It is a representation of the plug’s design and features. The image is accompanied by a descriptive caption.
The Type M Plug is composed of three round prongs arranged in a triangular shape, similar to the Type D Plug. However, the prongs of the Type M Plug are noticeably larger than those of the Type D Plug.
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Type N Plug
The Type N Plug is composed of three round prongs arranged in a triangular shape, resembling the Type J Plug. This plug type has two variations, with power ratings of 10 Amps and 20 Amps.
About Flat Plugs and Common Types of Plugs Worldwide
Below you will find some valuable information about flat plugs with two round holes as well as various types of plugs commonly used around the world. We strive to provide you with regular updates on practical information for your daily life. Stay tuned for more helpful content!
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