Construction requirements of overhead power lines: cement pole method

This paper will introduce the relevant requirements of cement poles in the construction of overhead power lines, especially the vertical pole method. The following are some key points to help readers better understand the construction requirements of cement poles.

Various vertical rod methods

Cement poles can be erected by truck crane, tripod, herringbone pole and pole (top fork). Construction personnel can choose the appropriate vertical pole method according to the actual situation.

Strict inclination requirements

There are strict requirements for the inclination of cement poles after erection. 10kV above the pole inclination should not exceed 3/1000 of the pole length; 10kV and below poles shall not exceed 1/2 of the top diameter of poles. This is the opposite of option BC.

Temporary stay wires control construction safety.

In order to ensure the safety of construction, temporary stay wires need to be set at the top to control and adjust the temporary stay wires evenly when poles are erected by pole-holding method and vertical rod method. At the same time, the vertical pole method is only applicable to vertical wooden poles and cement poles with a length less than 8m, which is different from option D..