When you buy switch sockets, you usually want to buy a product with long life and good quality. For switch sockets, the quality of the copper inside it directly determines its quality. Today's home electrician class, let's talk about "how to identify the quality of the switch socket copper"
material
Copper sheet material is the main factor determining the performance of copper sheet. Previously, it was mainly made of pure copper material. The performance of copper was the best, red copper was the second, and brass was the worst. Due to the limitation of the oxidation resistance of pure copper, copper alloys, copper-cadmium alloys, copper-nickel alloys and tin-copper alloys are now used. The best performance is tin-phosphorus copper alloy.
length
In the case of the same material, the copper piece is as long as possible. Because the length of the copper strip determines the size of the socket, the wider the jack spacing, the more convenient it is to insert the two or three plugs at the same time. In the past, many old-fashioned sockets could not be plugged into two plugs and three plugs at the same time because the copper strips were short and the jacks were short.
thickness
The thicker the copper piece, the better the elasticity and the longer the corresponding socket life.
Forming method
The old riveted copper piece can clearly show that the two materials are completely different from the middle bridge material, and there are obvious riveting points. The formed copper piece has a smaller electric resistance than the riveting, the smaller the relative heat generation, the better the elasticity, the higher the safety factor, and the higher the electrical conductivity.
Contact method
There are two main ways to contact the socket copper piece and the plug conductive piece: point contact and surface contact. Surface contact is much more conductive and safe than point contact because point contact is prone to sparks and the copper sheet is more susceptible to loosening.
material
Copper sheet material is the main factor determining the performance of copper sheet. Previously, it was mainly made of pure copper material. The performance of copper was the best, red copper was the second, and brass was the worst. Due to the limitation of the oxidation resistance of pure copper, copper alloys, copper-cadmium alloys, copper-nickel alloys and tin-copper alloys are now used. The best performance is tin-phosphorus copper alloy.
length
In the case of the same material, the copper piece is as long as possible. Because the length of the copper strip determines the size of the socket, the wider the jack spacing, the more convenient it is to insert the two or three plugs at the same time. In the past, many old-fashioned sockets could not be plugged into two plugs and three plugs at the same time because the copper strips were short and the jacks were short.
thickness
The thicker the copper piece, the better the elasticity and the longer the corresponding socket life.
Forming method
The old riveted copper piece can clearly show that the two materials are completely different from the middle bridge material, and there are obvious riveting points. The formed copper piece has a smaller electric resistance than the riveting, the smaller the relative heat generation, the better the elasticity, the higher the safety factor, and the higher the electrical conductivity.
Contact method
There are two main ways to contact the socket copper piece and the plug conductive piece: point contact and surface contact. Surface contact is much more conductive and safe than point contact because point contact is prone to sparks and the copper sheet is more susceptible to loosening.
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