CALCULATION OF THE LIFETIME OF ELECTRICAL BUSBAR JOINTS

Electrical joints can be a weak points and with it endanger the reliab ility of electrical power-transmission systems. On the example of Alum inium-to-Aluminium and Aluminium-to-Copper busbar joints is shown how one can get information about the principle ageing behaviour from long -term test. Furthermore a possibility is presented to determine limiti ng values for the joint resistance and to calculate the lifetime of a joint depending on the construction, conductor material and loading.