132kv substation gantry

A substation structure is a general term for the outdoor steel structures in a power system used to suspend and support outdoor conductors and electrical equipment (such as circuit breakers, disconnectors, and current transformers). They are the core carriers of the substation’s high-voltage transmission incoming and outgoing lines, as well as internal connections. It includes many types, such as lattice angular gantry, tubular gantry and all kinds of supporting structures.
After fabrication, all the members of the substation structures are delivered to the galvanizing facility to be Hot DIP Galvanized. The structures are processed through the facility by Caustic Cleaning, Pickling, and then fluxing. These strict procedures ensure years of maintenance-free towers. Even we take a secondary finish for the client again, which is duplex surface treatment. The duplex coating is applied in our own paint shop.
Duplex surface treatment involves sand-blasting to remove 5-10 microns of the 70-150 micron thick hot dip galvanization coating. This removes any contaminants and roughens the surface. Almost immediately afterwards, in a controlled atmospheric environment, water-based painting, specially developed and manufactured for this purpose, is applied to the tower (structures) to a thickness of 80-120 microns.