Double typhoon is coming, how is the wind resistance of the low wind pressure conductor in the Far East?

In July, it is the active typhoon period, according to the Central Meteorological Observatory, the No.
6 "Fireworks" and No.
7 "Chapaca" double typhoons have formed, and the orange warning of heavy rain has arrived!

During the simultaneous formation of double typhoons this year, the power system, which is the lifeblood of China's industry, is facing a severe test
.
Typhoon is a huge energy reservoir, its wind speed is more than 17m/s, the maximum wind speed near the center can reach 40-60m/s, or even up to 100m/s, which will have a serious impact
on the operation of the distribution network.

Typhoons often cause large-scale tripping of transmission and distribution lines, collapse of towers, and disconnection, and storms also bring great difficulties
to emergency repairs and fault recovery.
Although the influence of wind speed is generally considered in the design of overhead power in the power grid, when the wind speed exceeds a certain value, the mechanical load of the line equipment in the windward direction will increase, and accidents such as short circuits are prone to occur
.
At the same time, excessive wind speed is also easy to produce line vibration phenomenon, which will cause the wire to break in
severe cases.

The provinces with the most typhoon landfall every year are Taiwan, Guangdong and Hainan, so the South Grid is affected by typhoons every year, and a capacity increase type low wind pressure conductor has been developed, which will make important contributions
to the construction of China's power grid.
Aiming at market demand, Far East and Zhuhai Electric Power Design Institute have continuously upgraded and optimized overhead conductors from the aspects of product structure and materials, and successfully developed a high-capacity low-wind pressure aluminum-clad steel core heat-resistant aluminum alloy stranded wire to ensure the stable operation
of overhead transmission lines in coastal areas.

So what is special about the capacity increase low wind pressure conductor developed by Far East?

First of all, compared with the steel core aluminum stranded wire of the same specification, it has small DC resistance, large pull-to-weight ratio, good arc sag characteristics, large transmission capacity and small wind resistance coefficient, and can increase the capacity by more than 80% and reduce the wind resistance coefficient by 16-28%
when applied in the coastal area of the Southern Power Grid.

Secondly, through the innovation of conductor materials and wire structure, it not only meets the line loss reduction of more than 3%, but also meets the reduction of wind pressure by more than 15%, and has the characteristics of corrosion resistance and strong wind resistance, which is the preferred wire for coastal areas to solve high wind, capacity increase and corrosion resistance
.

At present, the conductor has been applied to the "Zhuhai Power Supply Bureau 110kV Baxijia B Line Transformation" low wind pressure conductor demonstration project, batch supply has been completed, is the first time that the low wind pressure conductor developed by Far East as a demonstration project application, will play a good role
in promoting the application of low wind pressure conductor in the South Power Grid.

When the typhoon hit, Far East, as a leader in the cable industry, used high-quality products to help the safety of
electricity in coastal areas.

In addition, there is a typhoon protection tip for you~

1.
Pay attention to typhoon dynamics
through various platforms at any time.

2.
Before the typhoon comes, tighten the structure that is easily blown by the wind
.

3.
Personnel in dangerous areas should be transferred to a safe area
in time.

4.
Do not shelter from the wind and rain
near dangerous old houses, iron towers, etc.

5.
During typhoons, please do not go out
at will.

6.
Do not travel to the area where the typhoon passes, swim on the beach, and do not go out to sea
by boat.
(Chu Mengqian)