Early utility poles all started out as wooden poles, and it was only with the development of steel and concrete that the most common concrete poles of today were made. Its sturdiness, resistance to corrosion and high temperatures, as well as its high strength and resistance to cracking, have made it a new age benchmark like existence. Perhaps you have always thought that all such poles are solid, but the truth is that they are all hollow, why is this?

Because with the same material, the diameter of the hollow tube is larger than the solid tube and the bending resistance is better, which is actually a law of nature. For example, straw is also hollow so that it can resist stronger winds, and fishing poles are also hollow so that they can take more tension to prevent them from being pulled off.

So the smallest of poles in fact contains a rather complex production process. Firstly, the internal steel cables running through the head and tail need to be gradually tightened under the action of a stress gun so that they can maintain a certain load force, thus strengthening the overall stiffness and resistance to cracking of the pole. These are then secured with seat rings, at which point the entire internal skeleton of the pole is roughly ready.

The transmission conductor is supported by a section of the transmission tower, high voltage level with "iron tower", and a low voltage level, such as in residential areas in general with "wood pole" or "cement pole ". Together, they are known as "towers". High-voltage lines require greater safety distances, so they have to be erected very high, and only pylons can afford to carry tens of tons of lines.

In addition, the use of poles as 'safety platforms' has recently come into focus. In the event of an earthquake, data on the tilt or vibration of the poles can be collected to help with accident response and post-disaster reconstruction.

In September last year, Korea Telecom invested 10 billion won in installing sensors on utility poles to create a platform for collecting big data on haze, collecting and analyzing air quality information at a height of 10 meters above ground, and sending the data back to government servers on a minute-by-minute basis. Korea Telecom also plans to launch an application within the year that will send data directly to individual users.

According to the report, utility poles are also expected to be used as energy storage devices. The Korea Electric Power Corporation is studying the option of providing charging services for electric vehicles by installing charging equipment on utility poles. This would allow the use of existing poles without the need to purchase new land and would cost only 1-2 million won to set up.