Adapter cable: XLPE/PVC three-core cable (section 25-400mm²), voltage class 10kV, in line with GB11033 and IEC 60502-4 standards, designed for outdoor harsh environment. Waterproof seal: IP68 protection (0.1MPa water pressure 48-hour verification, self-melting rubber layer radial pressure ≥0.25MPa); Environmental aging resistance: UV-B UV protection layer (2000 hours of aging shrinkage ≥95%) + 10% salt spray resistance 3000 hours (ASTM B117); Mechanical stability: Axial tensile ≥200N (IEC 61479), resistant to EN 61373 Class B vibration (5-200Hz/5g).