Application of CCA in the production of busbars and construction of branch cables

Copper-clad aluminum materials are quite prevalent in our daily lives, especially in specialized wires such as cable cores. They play a crucial role in the composition of enclosed busbars. Now, let's take a look at the actual situation of copper-clad aluminum products in enclosed busbars, as well as the structure of branch cables. I'm sure everyone is curious about this, so let's get to know them better.

The main materials for copper-clad aluminum production, enclosed busbars, are primarily formed from carrier conductors, shell, and insulator materials. The busbar shell should be made of high-quality cold-rolled sheets, possessing sufficient mechanical strength. To prevent degradation, the grade should be IP55. The current-carrying conductors should use copper materials suitable for electrical purposes according to GB5585.1-5585.3 standards. The contact surfaces of the conductor joints have undergone special treatment to ensure reliable contact, low heat generation, and safe and reliable application. The copper-clad aluminum insulation materials need to have good insulation performance, anti-aging, non-toxic, low smoke, and other project indicators.

The continuity of the branch cable is crucial for its key performance. Branch continuity integrates the conductors of the branch cable into one unit and provides the best insulation and explosion-proof solution. Visually, this is a key part of the branch cable. The test connectors of the cable are subjected to mechanical tensile tests and electrothermal cycling tests. For the mechanical tensile test, the breaking force of the branch continuity connector needs to be maintained at over 80% of the continuous state. For the electrothermal cycling test, after 125 cycles of rated load at regular intervals, the temperature of the branch continuity should not exceed the temperature of the branch head at the 25th cycle.