First, the main features of the double-headed knife switch
The double-headed knife switch is the simplest manual control device, and its construction can be divided into two types: the rubber cover switch and the iron cover switch. There are unipolar, bipolar and tertiary levels according to the number of stages, each with a single shot and a double shot.
The main features of the rubber cover knife switch are simple structure and low price; small capacity, commonly used 15A, 30A, maximum 60A; no arc extinguishing ability, easy to damage the blade; small capacity switch can use fuse to short circuit protection, but large capacity The porcelain plug should be installed outside the brake, and the original fuse should be replaced by copper wire.
The main feature of the iron shell knife switch is the arc extinguishing capability; it has iron shell protection and interlocking device (cannot open the door when it is charged), so it is safe to operate; it has short circuit protection capability; it is only used in occasions where it is not frequently operated, its capacity selection is generally Three times the rated current of the motor.
Second, what is the role of the double-headed knife switch?
The function of the double-headed knife switch in the circuit is: mainly used to isolate the power supply or manually turn the AC and DC circuits on and off, and can also be used for infrequently switching on and off the load below the rated current, such as small motors, electric furnaces, and the like.
The double-headed knife switch, also known as the knife switch or the isolating switch, is the simplest and widely used low-voltage electrical appliance in the hand-controlled electrical appliance. The role of the knife switch in the circuit is to isolate the power supply to ensure the safety of circuit and equipment maintenance. Break the load, such as infrequently turning on and off the low-voltage circuit with small capacity or directly starting the small-capacity motor. A knife switch is a type of switch that has a moving contact-gate and is wedged (or separated) from the stationary contact-tool holder on the base to turn the circuit on (or off). Among them, the fuse body is used as the moving contact, which is called the fuse type knife switch, referred to as the knife fuse switch.
A transfer switch is used in the main circuit to convert a group of connected devices to another set of connected devices. A knife-shaped transfer switch in the form of a knife switch structure is used; a combined switch element is combined into a rotary operation, which is called a combination switch.
Commonly used knife switches include HD type single-throw knife switch, HS type double-throw knife switch (blade changeover switch), HR type fuse type knife switch, HZ type combination switch, HK type knife switch, HY type reverse switch and HH type iron shell switch, etc.
After a brief introduction of the above content, everyone should have a more detailed understanding of the double-headed knife switch. In the process of using the double-headed knife switch, due to the need to manually control, its insulation anisotropy must be considered. Ceramic products are generally used in places where hand control is used to achieve good insulation. Of course, no matter what kind of switch, the place directly in contact with the human body generally has good insulation, preventing the occurrence of electric shock and improving the safety of electric power. I hope the above content will help everyone.
With the improvement of people's quality of life, people's lifestyles have also become varied. Different kinds of recreational products are starting to appear in people's lives, such as electronic cigarettes. The emergence of e-cigarettes represents a part of young people's thinking and means that electronic products are beginning to show a trend towards diversity.
simply replace the pods. The Pod system uses an integrated pod rather than a tank for higher nicotine strength and provides low power traction. the Pod system is rechargeable and has a longer life and higher battery capacity than disposable electronic cigarettes.
Our company Pod system has a built-in 380mAh battery and a USB charging port on the bottom. In comparison, the Pod system has a built-in battery of only 180mAh, but the Pod system charges much faster.
Our electronic cigarettes are of rechargeable construction. The first time you use the charger to charge, it is recommended to use up the remaining power before filling up, this is to ensure the performance of the battery.
Vape Pod System Oem,Vape Pod Oem,Close Pod Oem,Thc Pod Disposable
Shenzhen MASON VAP Technology Co., Ltd. , https://www.masonvap.com