[ad_1]
Many people in TT-Hue spoke out, calling on this province’s electricity company to change power poles designed in the style of prestressed centrifugal concrete that is prone to fracturing and collapsing to ensure the safety and lives of people. citizen.
Previously, VietNamNet published an article “TT-Hue Electricity Talked About 200 Power Poles Breaking,” Qualified, Reflected After Storm No. 5 Made Land In TT-Hue Province, Hundreds Of Poles electrical above This area was destroyed by storms.
|
| Power poles with transformer stations collapsed in front of people’s houses |
Faced with the unusual incident above, readers and public opinion in TT-Hue province expressed skepticism about the quality of the power poles operated and used by TT-Hue Power Company.
According to Mr. Phan Phuoc Thuyen (residing in Co Post Village, Huong An District, Huong Tra City, TT-Hue Province), after Typhoon No. 5 struck, people were registered along the Cao Van Khanh highway that ran through this area. About 10 power poles were broken, collapsed, stretched across the road.
“I don’t understand how the poles are designed, but the storm that just happened has broken so badly, this is something very unusual. Our people are skeptical about the poor quality of power poles, it is necessary to clarify the responsibility of the power unit, ”said Mr. Thuyen.
Meanwhile, Mr. Nguyen Dang Sinh – Head of the Co Bau residential group reported that after Storm No. 5, the power poles in this area were broken and fell everywhere.
 |
||
Mr. Nguyen Dang Sinh, Co Post Quarter Team Leader
|
“There are broken electric poles that hit the garden of the village house, some have broken and damaged the roof of the village … Fortunately, at the time of the storm, no one left the house, so we were able to avoid accidents that were worth it. I’m sorry it happens.
We recommend that the state check these utility poles and replace unbroken poles to ensure the safety and lives of people, ”Sinh said.
The electric pole is broken with the inspection seal intact.
Reporting with VietNamNet this afternoon, Mr. Nguyen Dai Phuc – Deputy Director of the Electricity Company of TT-Hue Province, said that storm No. 5 affected 408 power poles of this unit, including 272 columns including media poles tension and Low pressure broke, fell. The damage caused by the electricity of TT-Hue province was estimated at 11.4 billion VND.
 |
| Compared with traditional electric poles, prestressed centrifugal concrete electric poles are fragile and brittle |
According to Mr. Phuc, post-tensioned reinforced concrete centrifugal power poles have been used in TT-Hue province since 2016, manufactured according to the new TCVN 5487: 2016 standard, wind resistant above level 12 and approved by the Department General. Standards for measuring the quality of evaluation, announced by the Ministry of Science and Technology.
When producing, each batch of products must be tested and tested to meet new standards, each batch marked, and then shipped to the field.
The project to replace traditional centrifugal concrete electrical poles with prestressed reinforced concrete poles was offered competitively and widely tendered. In which, there are units within and outside the province that are winning the tender.
Depending on the length and diameter, each type of column will have a different investment value. Before being put into use, these electric poles have been tested to meet quality standards.
“The columns of the factory at the production site are closely tested by the authorities with 2 contents: load test and destructive test. Once the electric pole reaches both contents, the factory quality certification seal will be sealed.
In fact, many broken power poles in the area after Storm No. 5 are still stuck in the body of the column, ”said Mr. Phuc.
According to the leader of TT-Hue Power Company, although the intensity of storm No. 5 is not strong, it caused hundreds of power poles in the area to break and fall due to the unpredictable wind of the storm, causing the phenomenon to launch. . , jerks, eddies, creating a great bending force in the body of the electric pole.
Sharing with PV, a construction engineer in TT-Hue province said that the post-tensioned centrifugal electric column is said to withstand good forces, but has brittle properties that are different from the plastic properties of traditional cast columns.
When subjected to strong external force, the prestressed centrifugal column will fracture, and the traditional electric column will deform, if it breaks, it is difficult to split, the “gut” is designed with iron and steel larger than the column. Prestressed.
“At present, the provinces and cities of Vietnam use a series of prestressed centrifugal electric poles, because this is a product that complies with the Vietnamese standards that are evaluated and announced by the authorities. However, hundreds of broken power poles in TT-Hue and some other locations after the fifth storm have or have not met Vietnamese standards, they need to be checked and reevaluated, ”said this engineer.
Facing the column broken by typhoon No. 5 in TT-Hue province, the specialized functional agencies of the power grid were requested by the leaders of Vietnam Electricity to assess (natural conditions in the region). China has a severe climate with unusual changes).
Central Power Corporation has assigned specialized units to re-evaluate the suitability of the centrifugal column under specific conditions such as the evolution of the last natural disaster. When there is no official conclusion from the specialized authorities, the use of prestressed centrifugal electric poles will be stopped.
Quang Thanh
TT-Hue Electricity spoke about the fact that 200 power poles were broken, parachutes collapsed “up to standard”.
Storm No. 5 landed in TT-Hue, causing nearly 200 power poles in TT-Hue to collapse or break throughout the body, causing many people to doubt the quality.
