A cable lug is the crimped or bolted metal fitting that terminates a power cable and bolts it to equipment. This engineer's guide covers the three lug metallurgies (copper, aluminum, bimetal Cu-Al), the governing standards (DIN 46235, IEC 61238-1, GB/T 14315), conductor sizing from 10 mm² to 630 mm², crimping best practice, and how to avoid the copper-aluminum galvanic corrosion trap. Drawn from 20+ years of manufacturing experience at MINGXU, an ISO 9001 / 14001 / 45001-certified supplier used in State Grid UHV projects and export markets worldwide.
Prevent galvanic corrosion and thermal failures: use friction-welded bimetallic cable lugs for reliable aluminum-to-copper connections.
Ensure network reliability in bulk aerial hardware procurement. Verify material compatibility, load ratings, and supplier QA to avoid costly failures.
