What is an acceptable practice for mitigating EMI in cable installations?

Using grounded conduits is an effective practice for mitigating electromagnetic interference (EMI) in cable installations. Grounded conduits can create a barrier that protects data cables from external electromagnetic fields. This method not only provides physical protection for the cables but also helps to shield them from interference by providing a path for any induced currents to be safely directed away from sensitive communication lines. The grounding of the conduit offers an additional layer of safety by reducing the risk of electrical surges affecting the cables within.

While other options may seem relevant, they do not provide as comprehensive a solution for EMI mitigation. Using optical fibers exclusively is a good practice, but it doesn't address EMI since optical fibers are inherently immune to electromagnetic interference; however, it limits the type of communication technology used. Installing grounded conduits focuses directly on prevention and protection against EMI for various cable types. Positioning cables away from power sources is a reasonable precaution and reduces the likelihood of interference, but it does not offer the protective benefits that a grounded conduit provides. Utilizing high-voltage lines would likely increase the risk of EMI, not mitigate it. Therefore, grounded conduits emerge as the most suitable option for an effective EMI mitigation strategy.