Germany 3 Pin Socket Plug

Material quality

1. Panel material:

Good switch socket panel materials used in the flame retardant, insulation, impact resistance and other technical indicators are above the national standard, high-quality brand product material stability is stronger. Most of the switches and sockets are used to make panels, frames and shells, and a few brands even use PC materials to make back seats. High quality brand switch socket is usually made of imported high-grade PC material.

Urea resin, also known as urea formaldehyde resin, UF, its pressure plastic powder is commonly known as jade powder. It is the main material of switch socket before 1990s in China. Compared with advanced PC material, the insulating material used for electrical products has poor impact resistance, wear resistance, insulation performance and high temperature resistance. It is also easy to change color, and the surface is rough when touched. It is the most widely used material for medium and low-grade brands, and is mostly used for making the panel of switches and sockets.

ABS, a acrylonitrile butadiene styrene terpolymer, is a kind of general engineering plastics with various varieties and wide uses, also known as "general plastics". However, many low-grade and ultra-low-grade switch and socket products still use ABS to make panel, frame and fixed frame, and it is not known as ABS, only called advanced engineering plastics. High grade PC material is also used for the rear seat of high-grade products. First of all, the contact size depends on, of course, the larger the better, and the size and material of dynamic contact and static contact should be consistent. Brand switch uses two kinds of contacts: pure silver and silver alloy. After repeatedly switching, the contact area between contacts will be reduced, the contact resistance will be increased, the power on capacity will be reduced and it is easy to heat up, until the whole switch is completely burned out.

Whether the socket is good or not depends on the plug sleeve. Whether the plug sleeve is good or not depends on the materials used and the processing technology. The good insert is made of tin phosphor bronze (purple red color). Tin phosphor bronze sheet has good elasticity, anti fatigue, and is not easy to oxidize, especially after acid pickling and phosphating oxidation resistance treatment, its conductivity is more stable. The socket of high-quality socket should be made of high-quality tin phosphor bronze by integrated process, without riveting contact, low resistance, not easy to heat, more safe and durable, the number of plugging can reach 10000 times, and the high-grade can reach 15000 times.

It is also used as socket insert. Due to the poor elasticity of brass, it is easy to oxidize. In short-term use, due to poor contact, it is easy to produce arc and heat, and there is a fire accident potential. The switch socket belongs to 3C certified electrical products which are compulsory by the state. Only the products that meet the national standards and pass the 3C certification can ensure the safety of use.

Finally, I remind you to recognize the 3C safety certification mark. The double board clamping mode is more reasonable for two wires of the same diameter, and it is difficult to parallel multiple wires.