Construction of the 320 KV extra-high voltage direct current connection at the Oberzier - Belgian border as an underground cable

HDD flush drilling works for the construction of cable conduit systems in construction lots HDD 1, HDD 2 and HDD 3

North Rhine-Westphalia

• Construction of horizontal drilling sections with 2 individual drilling sections each (840 m and 310 m)
•  Delivery and welding of PE pipes DA 280 SDR 9 / SDR11, 3,450 m
• Supply and insertion of PE pipe DA 50*4.6 in cable protection pipe DA 280, 10,350 m
• Supply and insertion of PE pipe DA 75*6.8 in cable protection pipe DA 280, 1,150 m Lot HDD 2
• Construction of horizontal drilling sections with 3 individual drilling sections each (610 m, 340 m and 280 m)
• Supply and welding of PE pipes DA 280 SDR 9 / SDR11, 3,690 m
• Supply and insertion of PE pipe DA 50*4.6 in cable protection pipe DA 280, 11,070 m
• Supply and installation of PE pipe DA 75*6.8 in cable protection pipe DA 280, 1,230 m

Lot HDD 3

•  Construction of two horizontal drilling sections of 1,170 m and 630 m, each a drill channel of 800 mm diameter for the insertion of three cable ducts of DA 280
• Delivery and welding of PE pipes DA 280 SDR 9, 5,400 m
• Delivery and insertion of PE pipe DA 50*4.6 in cable protection pipe DA 280, 16,200 m
• Supply and insertion of PE pipe DA 75*6.8 in cable protection pipe DA 280, 1,800 m

Execution in cooperation with Beermann Bohrtechnik GmbH

April 2019 to June 2020

Amprion GmbH