Tag 'source:ref = interpolation'

• 219: source:ref
• 214: ref
• 184: power
• 172: design
• 145: source:position
• 59: line_attachment
• 53: structure
• 42: material
• 29: removed:power
• 15: source
• 7: line_management
• 6: abandoned:power
• 4: operator:wikidata
• 4: operator
• 4: frequency
• 4: voltage
• 1: wikimedia_commons
• 1: location:transition