Solon Belleville Springs & Washers can solve a variety of electrical application challenges. Bolted electrical connections are often made up of materials that have various coefficients of thermal expansion. Additionally, the joint materials also carry more current than bolts, causing the joint to heat up more than the bolts. The resultant differential thermal expansion (DTE) results in an increase in bolt load, which can cause the joint components to yield. During each thermal cycle, bolt load may be reduced.
Prevent Catastrophic Failures in Bolted Electrical Connections
Electrical connections can also loosen over time due to vibration or embedment relaxation, which is caused by microscopic high points on bolt threads and mating surfaces. As the bolt load is reduced, electrical joint resistance increases or causes heat or heat spots, which can result in even higher resistance and ultimately, catastrophic failure.
Reduce Loss of Preload
If connections aren’t bolted properly, they can cause catastrophic failure and arc flash, a type of electrical explosion. Properly used Solon Belleville Washers can reduce the loss of a preload by 5x or more.
Applications that use our washer products include:
