What should be done when making bonding or grounding connections between dissimilar materials?

When making bonding or grounding connections between dissimilar materials, using a suitable washer is important to prevent galvanic corrosion. When two different metals touch, they can create an electrochemical reaction, leading to one of the metals corroding more rapidly than it normally would. A suitable washer, often made from a non-conductive material or coated to provide insulation, can help minimize this effect by separating the different materials. This allows for effective electrical connections while reducing the risk of corrosion caused by dissimilar metals interacting.

Other strategies, such as using no additional materials or coating with oil, may not provide the necessary separation or protection against corrosion, and aluminum tape would not be compliant with proper practices for creating a durable and effective bond or ground connection. Thus, using a suitable washer is the best choice for ensuring longevity and reliability in such connections.