What is a potential risk if compression bus connections are not properly torqued?

When compression bus connections are not properly torqued, one significant risk is decreased electrical conductivity. Proper torque is essential because it ensures that the electrical contacts are secure and can maintain a low-resistance pathway for the current to flow. If the connections are loose due to improper torquing, it can lead to increased electrical resistance at the connection points. This elevated resistance can cause localized heating, voltage drops, and potentially lead to failure of the bus connections over time.

Increased electrical resistance may not only reduce the efficiency of the system but can also impact the overall performance of electrical equipment. As a consequence, the reliability of the entire electrical system may be compromised, leading to potential operational issues.

While other options also present valid considerations—such as system overloading, frequent maintenance, and reduced heat resistance—these are more indirect consequences that might arise from decreased electrical conductivity rather than being the immediate and direct risk associated with improper torque on bus connections.