MEGATRO provide 138KV switch structures, which are used to switch generators, equipment, and circuits or lines in and out of a system, and including Gantries and Equipment Support Structures. Gantry structures are mainly used for guiding the power conductor from last tower near substation to the electrical equipments in a substation. This structure consists of a number of columns, angle steel bar and Girder beams, which depend on number of circuits of the line. Gantries are also used for line crossing. Power conductors of one line can be under-passed with the help of required number of gantries. Equipment Support Structures are columns, supporting electric equipments in a substation.
Depending upon the site and client's requirement, the Gantry and Equipment support structures can be mounted on substation building also.
MEGATRO manufacture them with complicated technology and adopted sophisticated production line.
Fabrication: Conform to client drawings and technical requirements
Place of Origin: Qingdao, Shandong, China.
Availability size: Based on the customer's requirements.
Material: Chinese material or as per clients requirements
Package: Both party discuss and agreed before delivery
Terms of Payment: L/C; T/T
Minimum Order Quantity: 1 set
Port of Loading: Qingdao Port
Lead Time: One month or based on the customer's needs.
APPLICABLE STANDARD AND CODES
All towers manufactured and design shall be generally in accordance with latest revision of the following standards except where specifically directed otherwise.
General
IEC 60826 - Design criteria of overhead lines
IEC 60652 - Loading tests on overhead line structures
ISO 1459 - Metallic coatings - Protection against corrosion by Hot Dip Galvanizing
ISO 1461 - Hot dip galvanized coatings on fabricated iron and steel articles
ISO 12944 - Paint coatings, corrosion protection, and structural steelwork
ISO 898-1 - Mechanical properties of fasteners. Part 1-Bolts, Screws and studs
ISO 630 - Structural Steels - plates, wide flats, bars, sections and profiles
ISO 657 - Hot rolled structural steel plates tolerances on dimensions and shape
ISO 7411 - Hexagon Bolts for high strength structural bolting with large width across flats
ISO 657-5 - Hot rolled Structural Steel Sections equal and unequal leg angles
ISO 7452 - Hot rolled structural steel plates tolerances on dimensions and shape
BS EN 50341-1 -Overhead electrical lines exceeding AC 45kV -General Requirements
BS 8004 - Code of Practice for Foundations
BS 8110 - Structural use of concrete
ANSI10-97 - Design of latticed steel transmission structures
IEC 60050 (151) International Electro-technical Vocabulary
Part 51 Electrical and Magnetic Devices
IEC 60050 (601) Chapter 601: Generation, transmission and distribution of electricity-General
IEC 60050 (601) Chapter 601: Generation, transmission and distribution of electricity-Operation
IEC 60059 IEC standard current ratings
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