Connection of plate ends: when designing with bolts, or taking precautions to prevent loosening during supply; at the same time, when bolting, be sure to perform torsion testing according to the operating specifications. In the case of screw connection of conductive parts, one of the main failure modes is that the tightening torque is not controlled according to the torque requirements, resulting in abnormal temperature rise and ablation of the connection part.
Derating curve: Now let’s discuss the derating curve. In my understanding, the derating curve is like you choose a product. This product is to be used in a specific environment. According to an attribute value of this product to determine which range of products you choose. The derating curve of high-voltage connectors is to provide customers with a menu, and customers can choose their own suitable dishes according to their own tastes.
The derating curve is the different values ​​corresponding to different currents at different working ambient temperatures. These values ​​are a graph obtained by the tracing method. With this derating graph, the usage conditions of the connector can be seen more intuitively.