Plastic pipe for e.g. gas under pressure, with detection and location system for damage caused by trenchless laying, includes aluminum conductive spiral embedded close to outer surface

摘要

The conductor (12) is made of aluminum. The pipe has at least one inner layer (10) and an outer layer (11), between which the conductor is located. The outer layer is filled with quartz or glass, for high abrasion resistance. The outer diameter of the pipe is 20 mm or more, preferably 25 mm to about 1,200 mm. The aluminum conductor is aluminum wire or flat strip.