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On the morning of August 2, the laying of the 35 kV long-circuit double-circuit submarine cable on Yantai Changdao was successfully completed
.
The 35 kV Changyan Line is the only power supply line in the North Five Islands, which is now exited from the 35 kV side of the 110 kV Changshan Station, and sent back to the 35 kV Yanji Substation on the 35 kV Yanji Island through the 3.
9 km overhead line, 6.
2 km land cable and 23 km submarine cable, which is responsible for the power supply tasks and wind power transmission tasks of the North Wuxiang Town of the Bangji Island, Daqin Island, Xiaoqin Island, Nanhuangcheng Island and Beihuangcheng Island
.
Among them, the submarine cable is a key part of the transmission channel, and has become the power "lifeline"
of the military and civilians in the North Five Islands.
The total investment of the 35 kV Changyan Second Circuit Transmission Line Project is about 87.
73 million yuan, and its construction has fundamentally changed
the current way of relying on 35 kV single-circuit submarine cable power supply from Changdao County to Rocky Island.
Since the construction began in November 2015, the project has successively completed the land cable construction project on the Long Island side and the overhead line construction project
in Long Island and Yanji.
As the most important submarine cable construction project of the project, it is necessary to lay a three-core photocomplex submarine cable with a total length of 23 kilometers, this time the submarine cable laying method is deep burial, excavation of 2.
5 meters deep trench on the seabed, the submarine cable is laid in the cable trench, compared with the previous traditional technology, the process is complex, the engineering volume is large, the laying progress is slow, the technical requirements are high, and the duration is long
。 Since the laying began at 7 o'clock on July 28, with the strong support and help of the joint construction, on August 2, the laying project of the second submarine cable of Changdan was successfully completed, and the construction of the double circuit transmission from Long Island to Yanji was successfully realized, and the safety of power supply and power supply reliability will be further guaranteed
.
On the morning of August 2, the laying of the 35 kV long-circuit double-circuit submarine cable on Yantai Changdao was successfully completed
.
The 35 kV Changyan Line is the only power supply line in the North Five Islands, which is now exited from the 35 kV side of the 110 kV Changshan Station, and sent back to the 35 kV Yanji Substation on the 35 kV Yanji Island through the 3.
9 km overhead line, 6.
2 km land cable and 23 km submarine cable, which is responsible for the power supply tasks and wind power transmission tasks of the North Wuxiang Town of the Bangji Island, Daqin Island, Xiaoqin Island, Nanhuangcheng Island and Beihuangcheng Island
.
Among them, the submarine cable is a key part of the transmission channel, and has become the power "lifeline"
of the military and civilians in the North Five Islands.
The total investment of the 35 kV Changyan Second Circuit Transmission Line Project is about 87.
73 million yuan, and its construction has fundamentally changed
the current way of relying on 35 kV single-circuit submarine cable power supply from Changdao County to Rocky Island.
Since the construction began in November 2015, the project has successively completed the land cable construction project on the Long Island side and the overhead line construction project
in Long Island and Yanji.
As the most important submarine cable construction project of the project, it is necessary to lay a three-core photocomplex submarine cable with a total length of 23 kilometers, this time the submarine cable laying method is deep burial, excavation of 2.
5 meters deep trench on the seabed, the submarine cable is laid in the cable trench, compared with the previous traditional technology, the process is complex, the engineering volume is large, the laying progress is slow, the technical requirements are high, and the duration is long
。 Since the laying began at 7 o'clock on July 28, with the strong support and help of the joint construction, on August 2, the laying project of the second submarine cable of Changdan was successfully completed, and the construction of the double circuit transmission from Long Island to Yanji was successfully realized, and the safety of power supply and power supply reliability will be further guaranteed
.
