Chongqing high voltage cable through the pressure test high voltage cable line length is 2151.09 meters
Xinhuanet channel in chongqing on June 13 (Li Yi) 3:23 a.m on June 11, as the last set of data collection is complete, the indicators show that chongqing's first 220 kv high voltage cable through the pressure test successfully, it marks the "underground high voltage corridor" meet the operation requirements.
As the city's first article 220 kv high-voltage cable laying, the pressure test, no matter from the technical, security and test personnel's comprehensive requirements on a test. Successful completion of the test, is not only the construction of chongqing cable test ability of electricity transmission &transformation facilities company a great leap forward, and chongqing city for the first time trial is successful, the 220 kv high-voltage cable signal of chongqing cable test ability entered the forefront of southwest China.
This experiment used cable series resonance of complete sets of compression device, in chongqing city was the first time use, capacity of 8750 kva x 3, test current high side at up to 105, the highest voltage 250 kv, 10 kilometers can satisfy 220 kv cross-section 1200 mm2 cable pressure test work.
16:41 points on June 10, cable high side pressure rise to 178 kv, meet test requirements, according to the official start of the first period of individual test, individual test time is usually 1 hour, the whole experiment time 8 to 10 hours.
Through the test of the high voltage cable length 2151.09 meters, cable USES 2000 square millimeters, cross section with cross-linked polyethylene insulation corrugated aluminium sheath outside the flame retardant PVC sheathed power cable, a total of 6 root, chongqing jiangbei town to longtousi substation of 220 kv double cable line project, is to beautify the city construction, meet the demand of electricity in play a positive role. Is understood to be leading the original built in mid-air temple, jiangbei town area of cable, will also be phasing in all fields.
