The corner tower is controlled according to the tensile stress of the main material outside the corner of the transmission line, and is not affected by the instability of the compressive stress. It is proposed that the asymmetric design of the corner tower can save 5%~10% of the steel. even more. The number of insulators is only related to the level of contamination. At 110kV, the straight line is usually 7 pieces, and the corner is 8 pieces. There is a relationship between the number of slices, the voltage level, and the level of the dirty area, which has nothing to do with the corner. It also has a relationship with the elevation (there is little relationship).
It is specially designed for the L-type arrangement of three-phase conductor insulators with different lengths of inner and outer angle insulator strings. The cross arm (5) has an extension (6) at the end of the cross arm (the end) is inclined downwards (6); the cross arm extension (6), left and right The outer arm string (7), (8), (9) of the L-type insulator string are respectively directly attached to the crank arm (4), and the tension-proof tower tilting adjustment device at different positions of the cross arm (5) and the adjusting method thereof It belongs to a power transmission facility, especially to a power transmission device used at the corner of a transmission line.
The composition of sapphire is alumina, which is blue due to the trace element titanium (Ti4+) or iron (Fe2+). It belongs to the trigonal crystal system, the crystal shape is often cylindrical, short column, plate, etc., and the geometry is mostly granular or dense. Transparent to translucent, glass luster. The refractive index is 1.76-1.77, the birefringence is 0.008, and the dichroism is strong. Heterogeneous body. Sometimes has a special optical effect
The ball lens is a very useful optical element used to improve the signal coupling between the fiber, the transmitter and the detector. In addition, it is also suitable for applications such as endoscopes, barcode scanning, pre-processed materials for Aspheric Lenses and sensors. The ball lens is made of a single glass substrate and can focus or output parallel light, depending on the geometry of the input source. Hemispherical lenses are also very common, and are used interchangeably with (full) spherical lenses when the physical constraints of the application require a more compact design.
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