General construction services of long-distance communication and power lines (cables)

**Includes:** - construction, repair and alteration services for: • long-distance overland, underground or submarine telecommunication transmission lines • long-distance high tension electric power transmission lines (cables) • long-distance electricity power lines for railways • transformer stations, pylons

**Excludes:** - construction services of local cables, cf. 54252 - trenching services, cf. 54330