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220kV Transmission Tower

A 220kV Transmission Tower combines a high-voltage lattice structure with several specified steel grades, yield-strength groups, and protected finishes.
Bolt connections and AWS D 1.1 welding requirements keep the material, joint, and fabrication information clearly defined.

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Features

The 220kV Transmission Tower is a steel lattice support for a 220kv overhead transmission route. Material options include Q345B/A572 with a minimum yield strength of ≥345 N/mm² and Q235B/A36 with a minimum yield strength of ≥235 N/mm². Additional grades are Q420, Q460, ASTM A572 GR65, ASTM A572 GR50, and SS400. Angle-steel members form the framework, connection plates organize the joints, and bolts create the final structural connections. Hot-dip galvanizing follows ASTM A 123, BS729, or the client requirement. Welding follows AWS D 1.1. Keeping the grade, yield, finish, welding, and connection entries separate supports accurate selection for the required 220kV tower configuration.

Components

Part	Function
Angle-steel members	Primary structural pieces forming the lattice framework.
Connection plates	Node plates organizing the structural joints.
Bolts	Fasteners creating the specified final connections.
Welded details	Fabricated joints produced under AWS D 1.1.
Tower body	Complete lattice structure supporting the 220kv conductor arrangement.

Product Parameters

Parameter	Details
Product Voltage	220kv.
Material Options	Q345B/A572 with minimum yield strength ≥345 N/mm²; Q235B/A36 with minimum yield strength ≥235 N/mm²; Q420, Q460, ASTM A572 GR65, GR50, and SS400.
Surface Treatment	Hot-dip galvanizing following ASTM A 123, BS729, or as required by the client.
Welding Standard	AWS D 1.1.
Connection	Bolt connection.

Main Applications

• 220kv overhead transmission routes requiring a lattice tower with clearly identified material grades.

• Projects using Q345B/A572 or Q235B/A36 with their corresponding minimum yield-strength entries.

• Tower schedules that also select Q420, Q460, ASTM A572 GR65, ASTM A572 GR50, or SS400.

• Fabricated structures using AWS D 1.1 welding together with bolted final connections.

• Hot-dip galvanized tower supply following ASTM A 123, BS729, or the requirement defined for the client order.

Our Services

An in-house production and design team supports project communication, and customer enquiries are answered within twelve working hours. Direct manufacturer supply avoids an agent or intermediary. These service points are useful when a 220kV order needs coordinated confirmation of steel grade, yield group, galvanizing requirement, welding standard, bolt connection, and section arrangement before fabrication. Design discussion, factory response, and direct supply can remain within one project communication route.