Delete overhead cables (symbol D26) in positions (a) and (b):
59° 59.8′ N, 004° 55.5′ W of Oslo, (a, clearance 6.5 m)
60° 01.0′ N, 004° 53.2′ W of Oslo, (b, clearance 10 m)

Remark: The overhead cable with clearance 9 m close by (b) remains unchanged.