According to the specifications for substation foundations, which type of steel is required for anchor bolts and nuts?

The requirement for hot-dipped galvanized steel for anchor bolts and nuts in substation foundations is based on its excellent corrosion resistance properties. Substations often operate in environments that may expose metal components to moisture and various corrosive elements. Hot-dipped galvanization involves coating the steel with a layer of zinc, providing a robust barrier against rust and deterioration over time.

This treatment extends the lifespan of the materials, ensuring the integrity and structural stability of the substation foundations under adverse environmental conditions. It is a common industry practice to use hot-dipped galvanized steel to ensure that critical components like anchor bolts and nuts remain durable and effective, minimizing maintenance needs and potential failures.

Other materials, like bronze or stainless steel, may have their own specific applications but do not provide the same combination of strength and corrosion resistance in the context of substation foundations. Cold-rolled steel, while strong, lacks the protective coating vital for ensuring longevity and reliability in such settings.