Qingdao Hongmai Steel structure engineering
Transmission line tower is used to support and overhead wire, lightning rod and other accessories of the tower structure, so that the wire and wire, wire and tower, between the wire and lightning rod, wire to the ground or crossing to maintain a specified safe distance between the high-rise structure.
Power tower type classification according to the use of 8 types:
1. Linear tower Z: used for the straight part of the line, hang the vertical insulator string
2. Corner Tower J: used for the corner of the line
3. Terminal Tower D: line terminal installed in front of the substation
4. Crossing the Tower K: It is set at the place that crosses a wider river and canyon
5. Transposition tower H: Set in the road phase reversal
6. Tensioning tower N: used in places where the line is more important to limit line accidents and play the role of anchoring wires. Easy to construction and maintenance, hang tension insulator string
7. Bifurcation Tower F: It is suitable for the bifurcation of the double circuit.
8. Linear corner tower ZJ: used for the linear corner of the line
Power tower type according to the shape of 16 types:
1. Upper font S
2. Wishbone C
3. Cat head M
4. Harpoon YU
5.V font V
6. Triangle J
7. Shofar Y
8. Stem G
9. Bridge Q
10. Glass B
11. Door Me
12. Drum Gu
13. Field T
14. King W
15. Positive umbrella type Sz
16. Inverted umbrella Sd
The power tower is divided into high-voltage power tower and ultra-high-voltage power tower according to voltage level: 10 kV, 35 kV, 110 kV, 220 (330) kV, 500 kV, 750 kV, 1000 kV.
GB/T 2694-2018≤ Transmission line tower manufacturing technical conditions ≥ is the current commonly used power tower national standard, edited by the power industry power equipment and line equipment quality inspection and testing center and other units.