Grid development

400-110 kV voltage range overhead lines

For 400-330 kV polymer insulator rods 2022-12-08 No. 22NU-448 For 110 kV polymer insulator rods 2022-12-08 No. 22NU-448 For the strings of glass insulators sets of 110 kV voltage range overhead lines (2022-07-22 No. 22NU-275) For the strings of glass insulators sets of 400-330 kV voltage range overhead lines (2022-07-22 No. 22NU-275) For 400-110 kV voltage range overhead lines pylons marking (2020-11-05 No. 20NU-402) For 400-110 kV voltage range overhead lines uninsulated aluminium steel reinforced conductors (2020-05-29 No. 20NU-183) For 330-110 kV voltage range overhead lines glass disc insulators (2020-05-15 No. 20NU-151) For 400-330 kV voltage range overhead lines insulator garland protective rings (2020-05-13 No. 20NU-139) For 400-110 kV voltage range overhead lines optical ground wire (OPGW) (2015-07-29 No. NU-97) For 400-110 kV voltage range overhead lines ground wires without optical cable (2020-05-15 No. 20NU-163) For 400-330 kV voltage range overhead lines spacer dampers (2020-05-15 No. 20NU-162) For 110 kV voltage range overhead lines vibration dampers (Stockbridge type) (2020-05-14 No. 20NU-150) For 400-110 kV voltage range overhead lines aluminium steel reinforced conductors suspension clamps (2020-05-15 No. 20NU-154) For 400-110 kV voltage range overhead lines conductors and grounding wires without optical fibers wedge type dead-end tension clamps (2020-05-15 No. 20NU-158) For 400-110 kV voltage range overhead lines conductors and grounding wires without optical fibers compression type dead-end tension clamps (2020-05-15 No. 20NU-159) For 400-110 kV voltage range overhead lines conductors and grounding wires without optical fibers bolted type dead-end tension clamps (2020-05-15 No. 20NU-160) For 400-110 kV voltage range overhead lines grounding structure components (2020-05-15 No. 20NU-155) For 400-110 kV voltage range overhead lines grounding structure installation requirements (2020-05-15 No. 20NU-156)