What type of cable installation allows for the collection of ground strikes from buried cables?

Direct buried cables are specifically designed for installation below the surface of the ground, allowing them to be in close proximity to the earth and the surrounding environment. This type of installation can indeed collect ground strikes, as the cables are directly in contact with the soil, which can conduct electrical charges from lightning strikes or other electrical events.

When lightning strikes, the ground can become electrified, and grounding systems or direct buried cables that are in contact with the earth can help dissipate this electrical energy by providing a path for the current to travel. This contributes to protecting the cabling and any associated equipment from damage due to electrical surges.

In contrast, above-ground cables are typically suspended and would not be in contact with the ground, making them less susceptible to direct ground strikes in the same manner. Underground duct systems offer some protection as they provide a conduit, but they are not the primary medium for collecting ground strikes. Riser cables are meant for vertical spaces between floors in buildings and are not applicable in the context of ground strike collection from buried installations.