The transmission of current often leads to loss due to the heat of the line, so the voltage is increased through transformers during transmission, so that the current becomes smaller to reduce heat loss. High-voltage electricity is very dangerous, and the target electrical appliances do not need such a high [...]
The thickness of the wire diameter is expressed by number (xxAWG). The smaller the number, the thicker the wire diameter and the greater the current it can carry. Otherwise, the thinner the wire diameter, the smaller the current resistance. For example: No. 12 has a current resistance of 20 amperes [...]
Plastic is a polymer material. The molecular weight of the new material is theoretically reduced by 30% after one use, which means that the various properties of the material are reduced by 30%. When the recycled material is recycled, some additives will be added, and various properties will be improved. [...]
The Cross arm is the horizontal angle iron on the top of the wire rod with a porcelain bottle on it. It is an important part of the tower pole. It is used to install insulators and gold gear, with supporting wires, lightning mocking lines, and keeping a certain safe [...]
The paint film thickness gauge is equipped with probes of different frequencies and wafer sizes, which can measure the surface coating thickness of different materials, and automatically adjust the error through functions such as probe-to-zero calibration and two-point calibration. , to improve the measurement accuracy. Different measurement methods are used [...]
OPGW cable and ADSS cable are completely different in structure, so they should be different in hardware. (1) Compared with ADSS, OPGW hardware requires higher slip strength and vertical load, so OPGW preformed rods for tension and suspension purposes needs higher strength, longer strand length and greater diameter than ADSS [...]
The Socket Tongues are divided into socket clevis and socket eye according to the different structure and service conditions. How can they be distinguished? As shown in the following figure: Clevis type. The clevis type with a bot, normalled installed with link plate. Eye type The single eye type [...]
How to distinguish and regulate the voltage level of transmission power? There is no particularly strict standard, and as the line voltage level becomes higher and higher, the distinction between voltage levels also changes somewhat. At present, generally speaking: 35kV, 110kV, 220kV, and 330kV are high voltages; 500kV, 660kV, and [...]
Electricity generated by thermal power plants, hydropower plants, nuclear power plants, etc. is sent to the grid, which is then distributed to users. Due to the long distance between the power plant and the user, the electric energy will be lost during the transmission process, which is called line loss, [...]
The load on the cross arm can generally be decomposed into three types: lateral load, longitudinal load, and vertical load. The lateral load is the load along the direction of the cross arm, such as the direct pole commercial wire, the horizontal wind force of the ground wire, the corner [...]
