Analysis and Comparison of Long-Distance Pipeline Failures

Table 3

Ignited failures analysis by UKOPA.

Affected Component	Cause Of Fault	Hole Diameter Class
Pipe	Seam Weld Defect	0–6 mm
Pipe	Ground Movement	Full Bore and Above; (18′′ Diameter pipe)
Pipe	Girth Weld Defect	6–20 mm
Pipe	Unknown	6–20 mm
Pipe	Pipe Defect	0–6 mm
Pipe	Unknown	40–110 mm
Pipe	Lightning Strike	0–6 mm
Bend	Internal Corrosion	0–6 mm
Bend	Pipe Defect	6–20 mm