Copper busbar expansion joint

Copper busbar expansion joint is a key component used to connect copper busbars in power systems. It can effectively cope with thermal expansion, contraction, and stress problems caused by temperature changes, equipment vibrations, etc., ensuring stable power transmission. It is widely used in substations, distribution cabinets, large motors, and other scenarios,
It is usually composed of multiple layers of copper foil stacked or copper braided tape. The multi-layer copper foil stacking structure can provide a larger conductive area and reduce resistance while ensuring flexibility; Copper braided tape has excellent flexibility and fatigue resistance, and can adapt to frequent stretching and bending changes. Copper foil is generally made of T2 purple copper (purity ≥ 99.9%), which has excellent conductivity and plasticity. The single wire of copper braided tape is also made of high-quality purple copper material