Due to the increasing growth of energy consumption, besides, additional electricity supply by generation houses (P.Ps), and as these houses are needed to be connected to T/Ls and electric distribution networks; design and supervision of HV transmission lines should consequently be very important. Therefore, regarding the major roles of engineering and design in commissioning of such projects, having utilized its highly experienced engineers, Tarah Energy Sepanta Company has been able to set up its design and engineering service for the power T/Ls. Having employed its skilled and experienced man powers in design/engineering services, besides the supervision, this company has successfully fulfilled or (has still under-construction) electric T/L projects including 63kV, 132kV, 230kV& 400kV in the single/double/4-line lattice & pole structures, as well as, design/ engineering services of the underground cable projects including 63kV, 132kV in the diverse regions. The stages of engineering/design services and supervision on electric transmission line:  Reviewing existing information on the networks and preparing preliminary design of electric T/L  General studies and determining design parameters of T/L  Determining optimum routs, dependent on various technical and economical parameters  Surveying and preparing plan and profile drawings of T/L routs, by means of ground and aerial laser scanning methods, and also the related geological and geotechnical studies  Detailed d …

Due to the increasing growth of energy consumption, besides, additional electricity supply by generation houses (P.Ps), and as these houses are needed to be connected to T/Ls and electric distribution networks; design and supervision of HV transmission lines should consequently be very important. Therefore, regarding the major roles of engineering and design in commissioning of such projects, having utilized its highly experienced engineers, Tarah Energy Sepanta Company has been able to set up its design and engineering service for the power T/Ls.
Having employed its skilled and experienced man powers in design/engineering services, besides the supervision, this company has successfully fulfilled or (has still under-construction) electric T/L projects including 63kV, 132kV, 230kV& 400kV in the single/double/4-line lattice & pole structures, as well as, design/ engineering services of the underground cable projects including 63kV, 132kV in the diverse regions.
The stages of engineering/design services and supervision on electric transmission line:
 Reviewing existing information on the networks and preparing preliminary design of electric T/L
 General studies and determining design parameters of T/L
 Determining optimum routs, dependent on various technical and economical parameters
 Surveying and preparing plan and profile drawings of T/L routs, by means of ground and aerial laser scanning methods, and also the related geological and geotechnical studies
 Detailed design, and performance of electrical, mechanical and structural calculations
 Spotting, by means of the latest world’s software including PLS-CADD
 Preparing technical specifications at equipment /construction and installation department
 Preparing tender documents for purchase of equipment, executive operations and technical /financial evaluation
 Cooperation with client up to concluding contract with the appointed contractors and manufacturers
 Comparing of design to contractual technical specifications, and inspection of building operations and conducting standard tests
 Site supervision on building operations, installation of structures and wiring, and presentation of site instructions/guidelines

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