The construction and maintenance of transmission line rightsof way, especially those aligned through forested areas, may result in alteration and disruption to terrestrial habitat, including. Lines at this voltage also serve markets in new york and new england, also very high demand. One transmission line at this high voltage was built near chicago as part of the interconnection for three large nuclear power plants southwest of the city. Construction manual for transmission lines surveying. Vehicles with automatic transmission are costlier than those of manual transmission. The line route should be so selected that the maintenance is easy and the line does not cause obstruction to vehicular traffic and should be shortest, as well, consistent with engineering and economic principles. Pdf pipeline planning and construction field manual e. Ieee guide for transmission structure foundation design, ieee std. The standards contain general requirements for constructing substation and transmission line projects. Electrical transmission and distribution construction. Provide means of connection and disconnection of engine with rest of power train without shock and smoothly. Construction related environment due diligence triggers and general cumulative impacts 163 a. This manual covers all the activities related to the construction of transmission lines. These standards ensure meeting of ergon energys requirements.
This bulletin is an update and revision of previous rea bulletin 651, design guide for rural substations revised june 1978. Two parallel wires coaxial cable microstrip line optical fiber waveguide very high frequencies, very low loss, expensive etc. Guidelines for electrical transmission line structural loading edited by c. Implementation of transmission line infrastructure projects by uganda electricity transmission company limited uetcl list of acronyms and abbreviations afd french development agency afdf africa development fund ap angle point cgv chief government valuer epc engineering procurement and construction gou. Juho ylihannuksela the transmission line cost calculation. Construction manual for transmission lines surveying payments.
Generally, structures are built from the ground up. Ieee guide to the installation of overhead transmission line conductors, ieee std. Safety risk management for electrical transmission and. Transmission lines a transmission line connects a generator to a load a two port network transmission lines include physical construction. However, hand ties are vulnerable to loosening from various forces and types of motion. Lrfd load and resistance factor design, aisc, manual of steel construction. Each activity will follow the previous one, such that at any one point an observer will see a chain of events with different working teams. External companies should not use these standards to construct nonergon energy assets. Sendingend port a a b b transmission line generator. The standards contain general requirements for constructing substation and. Manual transmission automatic transmission vehicles with manual transmission are usually cheaper. The standards, project specifications, standard drawings, and project drawings together completely describe the project to be constructed.
Construction supervisors will ensure all entergy contractors are briefed prior to the start. Implementation of transmission line infrastructure projects by uganda electricity transmission company limited uetcl list of acronyms and abbreviations afd french development agency afdf africa development fund ap angle point cgv chief government valuer epc engineering procurement and construction gou government of uganda. The usfs and blm will also authorize timber sale contracts to allow for the purchase and clearing of timber for this project. Enable power transmission at varied angles and varied lengths. General cumulative impacts during construction, operations and maintenance phase 163 b. Constructing new transmission lines and switchyard. Monitoring during construction, operations and maintenance phases 165.
Transmission line construction construction of transmission lines involves the following activities. American institute of steel construction, 1 east wacker drive. The manual is prepared on the basis of power safety rules handbook and gerc power system safety standard by making necessary modifications. I appreciate the work done by the members of the committee in preparing and bringing out this construction manual for transmission lines. World bank group environmental, health, and safety guidelines. Usually, the establishment of the voltage on major transmission lines, the. Construction manual for transmission lines free download as pdf file. On multiple circuit structures or line corridors, access shall. Michels installed 27 concrete caisson foundations ranging from 7 to 10 feet in diameter and up to 64 feet in depth and 73 direct embed excavations 5 feet in diameter and up to 36 feet in depth to support michels construction of a transmission line. Transmission line construction process there are several steps needed prior to poles being installed.
Introduction before construction of any line, survey is done. However, these are by no means exhaustive as it is not possible to visualize all the. The associated field guide is a waterproofed version of this manual, which summarizes key erosion and sediment control points for use by field crews. It typically takes longer to develop, permit and construct a transmission line than it does to develop a generation facility. The substation construction manual is not intended to replace asset management standards, but rather to act as a reference document that crossreferences existing standards and process documentation and plug any gaps where asset management documentation does not exist. All rus borrowers rus electric staff effective date. Pipeline planning and construction field manual e shashi menon elsevier 2011.
Guidelines for the construction and maintenance of. An introduction to electric power transmission presentation. Electrical transmission and distribution construction contractors and trade association osha partnership best practices purpose. Michels installed approximately 250 miles of high voltage 345kv ac transmission line. Standard for distribution line design overhead these standards created and made available are for the construction of ergon energy infrastructure. World bank group environmental, health, and safety. If unitypf resistive loads are added at the end of a line, the voltage at the end of the transmission line decreases slightly small positive vr. Transmission line construction, an ieee standards collection, 1994. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. Guidelines for electrical transmission line structural loading. Construction of transmission and distribution lines. Manual on transmission planning criteria central electricity authority 2 manual on transmission planning criteria contents preamble 4 scope and planning philosophy 1. Planning philosophy and general guidelines 6 criteria for steadystate and transientstate behavior 4. The transmission line is a twoport circuit used to connect a generator or transmitter signal to a receiving load over a distance.
The construction and maintenance of transmission line rightsofway, especially those aligned through forested areas, may result. Transmission line construction california public utilities. Major steps in a transmission line construction are a appropriate. Guidelines for the construction and maintenance of transmission lines photo by mike lawrence. Transmission lines are used in power distribution at low frequencies, and in communications at high frequencies. Manual for transmission lines and substation construction.
Where required design drawings for construction shall include the following. Once a hand tie has loosened, it constitutes a potential source of abrasion during any subsequent. This is because manual transmission has better mechanical and gear train efficiency. Design manual for high voltage transmission lines on photo. Dams for construction, operation, and maintenance of the transmission line and access roads. Primary clearing will occur within the transmission line and access road rows and some danger trees removed outside the row. Transmission line voltages nominal kvrms maximum kvrms 69 72 115 121 8 145 161 169 230 242 345 362 500 550 765 800 voltage 230 kv called extra high voltage ehv lower voltages have higher line losses not all voltages in every region. Environmental, health, and safety guidelines electric power transmission and distribution april 30. Construction manual for transmission lines slideshare. This guide publication is a reference containing fundamental engineering guidelines and basic recommendations on structural and electrical aspects of transmission line design, as well as explanations and illustrations. Request pdf on jan 31, 20, alex albert and others published safety risk management for electrical transmission and distribution line construction find, read and cite all the research you. The process can vary depending on the size of the line, soil conditions, terrain and other variables. An s64f erickson aircrane flies off with a section of lattice tower that will be transported to a construction site on henderson island in the ohio river for a power transmission line being built from the big rivers power complex in henderson county to the a. An introduction to electric power transmission table of content toc glossary about transmission lines electricity generation and delivery transmission line ownership and funding anatomy of a transmission line buildingmaintaining transmission lines planning the system permitting potential environmental impacts.
If the speed and ice with concurrent wind maps defined in the asce manual. Scribd is the worlds largest social reading and publishing site. Handbook on construction techniques asian development bank. Transmission line design manual bureau of reclamation. Site preparation foundation construction structure construction wirestringing operations site preparation tower locations are cleared of vegetation prior to construction of the towers. Construction process for transmission lines the following construction process will be followed for the entire route of the new transmission lines.
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