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电线杆的相册电线杆的相册

网址:www.baodingdiangan.com  2023-08-15  作者:admin    阅读:

早期的各种电线杆,都是从木杆起步的,甚至包括电压等级不是太高的高压线电杆。
In the early days, all kinds of poles started from wooden poles, even including high voltage poles whose voltage level was not too high.
后来由于钢筋和混凝土的发展,结合技术上的探究,运用离心力的原理制造,钢筋混凝土锥形水泥杆、等径水泥电线杆代替了大部分木杆,水泥电杆 坚固耐用、耐腐蚀、耐温差、高强度、抗裂。
Later, due to the development of steel bar and concrete, combined with technical research, using the principle of centrifugal force to manufacture, reinforced concrete conical cement pole, equal diameter cement wire pole replaced most of the wood pole, cement pole is durable, corrosion resistant, temperature difference resistant, high strength, crack resistance.
电线杆的相册电线杆的相册
Photo album of pole
而且适用的木材逐步稀缺,水泥电线杆外观光滑美观,更便于城市美化,城市里面就基本上难见木杆了。
And suitable timber is gradually scarce, cement poles have smooth and beautiful appearance, more convenient to beautify the city, and wood poles are basically hard to see in the city.
但是在一些不太发达的地方架州苗木 保定通风管道 丝网立柱模具 尼龙输送带 保定空压机 高碑店养老院设电话线还使用木杆,是因为木杆重量轻、架设方便,而且电话线的承重和拉力小,木杆可以胜任,电话线路若有改动,移杆也方便。所以,还有部分木质电话线杆。
But in some less developed areas, wooden poles are also used to erect telephone lines because they are light in weight and easy to erect, and the load and tension of telephone lines are small. The wooden poles can be competent. If the telephone lines are changed, it is also convenient to move the poles. So there are some wooden telephone poles.

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