Suitable cable: 0.6/1kV five core low-voltage cable (3-core+neutral wire+ground wire), with a cross-section of 4-300mm ², in compliance with IEC 60502-2 and GB/T 12706 standards, designed specifically for building power distribution, rail transit, and new energy scenarios. IP68 protection level pre expanded silicone rubber sleeve (stretch rate ≥ 400%), relying on elastic memory shrinkage to adapt to irregular cable surfaces, pre expanded silicone rubber sleeve (stretch rate ≥ 400%), relying on elastic memory shrinkage to adapt to irregular cable surfaces