As a common type of tension clamp, wedge type tension clamps are also used frequently in power transmission and distribution lines. The wedge type tensile clamp mainly uses the wedge type principle to lock the steel strand in the wedge clamp. During the installation process, the steel strand is first bent so that the curved shape of the strand is like a wedge and then installed in the wedge clamp. After the strand is subjected to the tensile force, the wedge and the strand are slid together with the outlet of the guide wire. The friction between the wedge and the strand is more and more due to the pressure of the wedge and the strand being clamped by the wedge-shaped cap line. Large, to achieve the role of fixed anchor steel strands.
Scope of application
In addition to the use of wedge-type tension clamps, wedge-type tension clamps are also used to fasten lightning conductors, and even wedge-type tension clamps can be seen in the cable pull of the cable tower. application.
Features
The characteristics of the wedge type tension clamp are very obvious. First, the convenience of installation and disassembly is the main feature of the wedge type tension clamp. Unlike other tensile clamps that use conductive conductors as electrical conductors, the wedge-type tensile clamps can be removed after installation and the process is simple to install or remove the wedge-type tensile barrier.
Not only to withstand the tensile force of the strand, the wedge-type tension clamp is also applied to the end of the overhead insulated conductor and the insulator string at both ends of the tensile end, the role of which is to make the overhead conductor tightened. Another advantage of using a wedge-type tension clamp is that it does not require the removal of the insulation of the wire when it is fixed to Xi'an, which is evident in the ease of installation.
Unlike other types of tension clamps, wedge-type tension clamps are not commonly used as electrical conductors, so in terms of electrical performance, wedge-type tensile clamps have very stringent requirements.
According to the different backlight sources, LCDs can be divided into two types: CCFL displays and LED displays.
Misunderstanding:
Many users believe that liquid crystal displays can be divided into LEDs and LCDs. To some extent, this understanding is misguided by advertisements.
The LED display on the market is not a true LED display. To be precise, it is an LED-backlit Liquid Crystal Display. The liquid crystal panel is still a traditional LCD display. In a sense, this is somewhat fraudulent. nature! South Korea`s Samsung was once convicted by the British Advertising Association as violating the country`s advertising laws because its [LEDTV" LCD TVs were suspected of misleading consumers. For liquid crystal displays, the most important key is its LCD panel and backlight type, while the LCD panels of displays on the market generally use TFT panels, which are the same. The difference between LEDs and LCDs is only their backlight types: LED The backlight and CCFL backlight (that is, fluorescent lamps) are diodes and cold cathode lamps, respectively.
LCD is the acronym for Liquid Crystal Display, which means "liquid crystal display", that is, liquid crystal display. The LED display refers to a type of liquid crystal display (LCD), that is, a liquid crystal display (LCD) with LED (light emitting diode) as the backlight source. It can be seen that LCD includes LEDs. Corresponding to the LED display is actually a CCFL display.
(1) CCFL
Refers to a liquid crystal display (LCD) with CCFL (cold cathode fluorescent lamp) as the backlight source.
The advantage of CCFL display is good color performance, but the disadvantage is higher power consumption.
(2) LED
Refers to a liquid crystal display (LCD) that uses LEDs (light emitting diodes) as a backlight source, and generally refers to WLEDs (white light LEDs).
The advantages of LED displays are small size and low power consumption. Therefore, using LEDs as a backlight source can achieve high brightness while taking into account lightness and thinness. The main disadvantage is that the color performance is worse than that of CCFL monitors, so most professional graphics LCDs still use traditional CCFL as the backlight source.
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