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What is the difference between flat hole socket and flat round hole socket, and which one is better?
2024-07-23
Summary： What is the difference between a round hole socket and a flat hole socket
1. What is the difference between a round hole socket and a flat hole socket?
The difference between a round hole socket and a flat hole socket lies in the shape of the plug.
Circular hole sockets are usually used for non grounded plugs, which have only two metal pins on the plug and no grounding pin. They are typically used for some low-power appliances, such as mobile phone chargers, electric toothbrushes, etc.
Flat hole sockets are usually used for grounding plugs, which have three metal pins on the plug, one of which is the grounding pin, which can effectively protect the safety of personnel using electrical appliances.
2. Which is better, round hole socket or flat hole socket?
There is actually no definite answer as to which is better, round hole socket or flat hole socket. It needs to be determined based on different usage scenarios and requirements. For example, if you need to connect high-power devices, choosing a flat socket is a more suitable choice. If your usage scenario does not require handling high-power devices, then the circular hole socket can fully meet the requirements. Overall, circular hole sockets have a more cost-effective advantage, while flat hole sockets have a wider range of applications.
3. Which is safer and has a longer lifespan, flat hole socket or flat round hole socket?
From the perspective of applicability, flat round plugs are more convenient because they can be inserted into both flat and round plugs, and flat round plugs are universal. However, from a safety perspective, flat round plugs are not as good as flat hole sockets.
This is because the surfaces of flat holes and flat round holes look different, but the structure of the plug inside the socket is the same, and even if there is a difference, it is not significant. When a flat plug and a round plug are used successively, the plug sleeve should adapt to the shape of the flat plug and the round plug respectively. On the one hand, the different contact interfaces will inevitably affect the conductivity of the current; On the other hand, frequent adaptation of the plug sleeve to different shapes of plugs will inevitably lead to a decrease in the rebound ability of the copper parts of the plug sleeve, which is prone to fatigue and subsequent poor contact, fatigue loosening, and even loose clamping. Either it affects electrical safety or its service life.
Therefore, from the perspective of safety and lifespan, flat hole sockets are more reliable. Although flat round plugs are more convenient to use, frequent changes in plug shape during use can lead to fatigue and loosening of the copper components, affecting electrical safety and service life. Of course, if the plug is not replaced frequently, it's not a big problem.
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