12.07.2015 Views

Part A - EIA 400 kV OHTL Stp - мепсо а.д.

Part A - EIA 400 kV OHTL Stp - мепсо а.д.

Part A - EIA 400 kV OHTL Stp - мепсо а.д.

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Environmental Impact Assessment Study for <strong>400</strong> <strong>kV</strong> OHL SS Stip – Macedonian-Serbian BorderDescription and Characteristics of the ProjectThe planned transmission line will be designed and constructed in compliance with thecurrent Regulation on the Technical Rules for Construction of Overhead Power Lines withNominal Voltage of 1<strong>kV</strong> to <strong>400</strong> <strong>kV</strong>, as well as the current standards, rules and regulationsapplicable in the Republic of MacedoniaThe entire life cycle of the project includes the following phases:oooooSelection of an adequate corridor for the route of the transmission line This phase hasbeen realised through (i) identifying the potential alternative routes, (ii) assessment ofthe feasibility thereof and (iii) selection of the most favourable alternative.This phase is underway (being undertaken by an electrical contractor appointed byMEPSO) and includes preparation of relevant planning documentation, includingtechnical and design documentation and analysis of the environment aspects. Theplanning documentation will be prepared in accordance with the requirements of thecurrent Macedonian and international legislation for these type of facilities.Construction phase. Activities of this phase will include construction activities andinstallation of the necessary infrastructure and equipment.Operational phase . This project phase will include actual operation of the transmissionline, including maintenance and control.Decommisioning and closure of installation. This phase will include measures forrecultivation and future use of the area, as well as measures for managing the impacton the environment during the post-project period.All the components of the interconnection <strong>400</strong><strong>kV</strong> transmission line SS Stip – Macedonian-Serbian broder (towers, foundation, conductors, protective wires and insulators) and theirelements will be designed, produced, tested and installed according to the standards of the<strong>400</strong> <strong>kV</strong> grid in Macedonia. The entire equipment must be designed and constructed in themanner that will ensure safe operation in the ambient conditions that exist in the area wherethe transmission line is to be built, and under various energy transfers and voltageconditionsthat might occur during the operaton of the transmission grid. The basic technical parametersof the transmission line are presented in the following table:Table – Review of technical parameters of the <strong>400</strong><strong>kV</strong> interconnection transmission lineParameterCharacteristicNominal voltage <strong>400</strong> <strong>kV</strong>Type of towers Steel-bar hot zinc-coated, with horizontally placed conductors, two per phaseand two protective wiresFoundationTypical solutions, depending on the engineering and geo-mechanicalparameters of the ground.Reinforced concrete - brand of concrete acording to the valid regulations.Protection against corrosion of anchor segment, 50 cm above the level of theterrain.Conductor √ Number per phases: 2√ Material: AlFe√ Section: 490/65 mm 2√ Maximum work strain: According to valid regulationsProtective wire Two earth-lead wires in horizontal lowland:• First: Alumoweld hawser with diameter of 126.1 mm 2 , labeled AWG 19/9• Second: Protective hawser with optic fiber, OPGW with 48 fibers(Mechanical and electric characteristics will correspond to classic protectivehawser)12

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