Sometimes I wonder, when were switches and sockets invented? Were there sockets as soon as electricity came along? If not, how was electricity used at that time? However, it seems pointless to think about this anymore. The development and progress of human society is so fast. In a few hundred years, people have been able to "go to heaven". The increase in the number of various electrical and electronic equipment in our lives has become increasingly inseparable from electricity, and switches and sockets, which are closely related to electricity consumption, are also "doubling in value" at this moment. So, how to choose a good socket?
1. What do you think of the quality of the socket?
1. Look at the material of the marbles in the rocker of the switch
The rocker is a device used to close the switch up and down. There is an important part called the marble, which is used to continuously close the switch. During the process, the marbles constantly rub against the copper sheets, which will cause wear and tear, so the material of the marbles is very critical. At present, many brands of marbles on the market are made of ordinary PC materials, which are easy to wear. The bull is made of reinforced nylon fiber material, which is hard, wear-resistant, high temperature resistant and has good toughness.
2. Look at the thickness of the silver contacts on the copper sheet inside the switch.
The switch is closed by opening and closing the silver contacts on the copper sheet to achieve the energized state. The silver contacts The thickness of the dots directly affects the conductive performance. The silver coating thickness of ordinary switches is 0.2-0.3mm, and the silver coating thickness of bull decorative switches is 0.4mm. The ultra-thick silver coating can effectively reduce the generation of sparks when the switch is closed and extend the service life of the switch.
3. Look at the thickness and strength of the copper sheet
Judge the quality of the copper sheet mainly based on the thickness of the copper sheet. At present, the thickness of the copper sheet in many products is only about 0.4mm. The thickness of the bull's copper sheet is between 0.6-0.7mm. The thicker the copper sheet, the better the conductivity.
4. Look at the number of switch closures
The national standard requirement for the number of switch closures is 40,000 times. The Bull decorative switch adopts patented suspension technology, which enables the switch to be used continuously for 80,000 times and has a service life of 80,000 times. Double the national standard.
2. Issues related to sockets
1. Commonly used specifications and dimensions of switch sockets
Our common switch sockets are wall switches, which means they are installed on The electrical switches and sockets used on the wall are also often called 86-type switches, which means that the size of the switch socket is 8.6cm*8.6cm.
2. What are the fixing screws of the switch socket? What is the use of the long screws?
Generally, the original switch sockets purchased have two matching screws of about 2.5cm, but in general bathrooms and kitchens You have to use extension screws to fix them, because bathrooms and kitchens are usually tiled, which increases the thickness. The extended screws are divided into 4 inches, 5 inches and 7 inches. Please consult your electrician for details.
3. What is the difference between a single control switch and a double control switch? A single control switch means that one switch controls one light; while a double control switch means that two two-way switches can control one light (mostly used in bedrooms and stairs).
4. Are there any waterproof switches for household use?
For general switches, a waterproof cover is added to the outside of the switch. This also greatly enhances security.
5. What is the difference between a 10A socket and a 16A socket?
10A is an ordinary electrical socket (used for small household appliances), and 16A is a special socket for air conditioners (special sockets for air conditioners with less than 3 horsepower).
6. When purchasing switches and sockets
First look at the shell material, secondly the contacts, thirdly the structure, the protective door and the materials used for its copper parts.
The installation of switches and sockets is actually at the end of the renovation, so there is no need to be in a hurry. You can buy other materials first, and the decorator will calculate a specific list at that time. In the early stage, you only need to compare the brands, quality, cost-effectiveness, etc., and if you like it, you can buy it directly after the list is completed.