For a wood transmission structure, what is the preferred grounding method?

In the context of grounding a wood transmission structure, using static wire is preferred for several reasons. The static wire serves as a means to dissipate electrical surges or lightning strikes, providing a path to ground that helps protect both the structure and any equipment connected to the transmission lines. When configured correctly, the static wire can effectively divert excess energy into the earth, minimizing the risk of damage to the wooden components of the structure.

Additionally, grounding to static wire allows for consistent grounding across multiple structures along the transmission corridor, enhancing the overall safety and reliability of the electrical system. This is particularly important in areas where lightning activity is common, as it helps mitigate the risks associated with electrical surge events.

Other grounding methods, such as direct earth grounding or using a copper plate, may not provide as effective a lightning protection mechanism compared to utilizing the grounded static wire. Grounding through an insulated cable is also not advantageous because it could prevent effective dissipation of electrical surges, reducing safety and reliability.