江蘇春晨電纜有限公司生產(chǎn)YCB扁電纜，桿塔上面的牌子就有線路的電壓等級(jí)。一般1開(kāi)頭的是110千伏，2開(kāi)頭的是220千伏，以此類推，5開(kāi)頭的則是指500千伏。

The brands above the towers have voltage levels on the lines. General 1 starts with 110 thousand volts, 2 starts with 220 thousand volts, and so on, 5 starts with 500 thousand volts.

當(dāng)然，千萬(wàn)不要為了看清警示牌上標(biāo)示的電壓等級(jí)而過(guò)于接近高壓線桿塔。

Of course, do not approach the tower of high voltage line in order to see the voltage level marked on the warning board.

各等級(jí)高壓線路距離：

High voltage line safety distance of each grade:

10千伏以下——0.7米

Below 10 thousand volts - 0.7 meters

35千伏——1米

35 thousand volts - 1 meters

110千伏——1.5米

110 thousand volts - 1.5 meters

220千伏——3米

220 thousand volts - 3 meters

330千伏——4米

330 thousand volts - 4 meters

500千伏——5米500 thousand volts - 5 meters

電桿之間的直線距離在120米左右；220KV肯定是一個(gè)巨大的鐵塔，220KV架空線路通常用的是30米以上的鐵塔和長(zhǎng)串的蝶式絕緣子，鐵塔之間的直線距離在200米以上；YCB扁電纜

The linear distance between the poles is about 120 meters; 220KV must be a huge tower. The 220KV overhead line is usually used as a tower with more than 30 meters and a long string of butterfly insulators. The line distance between the towers is more than 200 meters.

補(bǔ)充一下：

Supplement:

分裂導(dǎo)線

Split wire

判斷，2分裂通常是220kv，4分裂還有6分裂等以上通常是500kv級(jí)別。(所謂分裂數(shù)就是每相導(dǎo)線采用的導(dǎo)線根數(shù)，根據(jù)趨膚效應(yīng)，這樣做只用幾根導(dǎo)線就可以近似等效實(shí)際導(dǎo)線有這么粗。導(dǎo)線越粗線路電感越低，從而對(duì)輸電具有好處)。在中國(guó)，2,4,6分裂是比較普遍的。

It is judged that the 2 division is usually 220kV, 4 division and 6 division. Above is usually 500kV level. (the number of divisions is the number of wires used in each phase, according to the skin effect, so that only a few wires can be used to approximate the equivalent actual wire. The thicker the wire is, the lower the inductance of the line is, which is good for transmission. In China, 2,4,6 division is more common.

但一般都有很多個(gè)500KV 的輸電線路基本上用的是四分列導(dǎo)線，也就是一相有四根，220KV 多用兩分裂導(dǎo)線的，110KV 多用一根。

But in general, there are a lot of 500KV transmission lines basically using four lines, that is, one phase has four, and 220KV uses two split wires, and 110KV uses one more.

4、為什么經(jīng)常會(huì)看到不同形狀的輸電桿塔?YCB扁電纜

4, why do we often see different shapes of transmission towers?

桿塔的類型和很多因素相關(guān)，比如輸電電壓，回路數(shù)，導(dǎo)、地線種類和安裝方式等。在普通人看來(lái)，直觀的差別還是桿塔外形。

The type of tower is related to many factors, such as transmission voltage, loop number, conductor, ground wire type and installation mode. In the eyes of ordinary people, the most intuitive difference is the shape of the tower.

根據(jù)我國(guó)輸電鐵塔設(shè)計(jì)規(guī)范，我國(guó)的輸電鐵塔按照塔型主要可以分為酒杯型塔、貓頭型塔、干字型塔、鼓型塔等。

According to the design standard of transmission towers in China, the transmission towers in China can be classified into cup tower, cat tower, dry type tower and drum tower according to the tower type.