Jingyoung overhead line fitting is designed to hang, connect or protect conductors or insulators. This specification covers the design, engineering, manufacture, testing, supply and delivery of. Standard for distribution line design overhead these standards created and made available are for the construction of ergon energy infrastructure. Complete coverage of power line design and implementation. External companies should not use these standards to construct nonergon energy assets. Pdf a detailed investigation of overhead line insulators. It is used in a wide range of applications where permanent lowresistance joints are vital these include overhead line conductor connections, cable jointing, transformer and switchgear connections, lightning conductors and many more.
Overhead line construction refurbishment pdf book manual. A wide variety of overhead line fittings options are available to you, such as equal, reducing. Ssen 50326 conductors for overhead lines characteristics of greases. Insulation piercing connectors for connections to cables. Compression anchor clamps are available either as bolted type suitable for detachable jumper palms or the integral types having angled or straight jumper facility. Overhead lines requirements and tests for stockbridge type. Limited free company information from companies house including registered office address, filing history, accounts, annual return, officers, charges, business activity. Suspension and tension clamps for overhead line conductors. To specify the requirements for overhead line fittings for use on endeavour energys electrical networks. Helical fittings for overhead power lines endeavour energy.
This standard specifies the mechanical test, electrical test, and material test of electric traction overhead line fittings used for electric traction overhead lines of a railway and track, and line feeder including overhead return circuits. Bs32881 insulator and conductor fittings for overhead. Overhead transmission lines shorter than 80 km 50 miles can be modeled as a series resistance and inductance, since the shunt capacitance can be neglected over short distances. Overhead line conductor an overview sciencedirect topics. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The most common methods for transfer of electric power are. Overhead line fittings, overhead line fittings products. It may also be applied to fittings for overhead lines of lower nominal voltage and to. Guide to the installation of overhead transmission line conductors, is to. Overhead line fittings, find quality overhead line fittings products, overhead line fittings manufacturers, overhead line fittings suppliers and exporters at website title. Performance and general requirements electric insulators, overhead line conductors, overhead powerline fittings, overhead power lines, electric power transmission lines, performance, corrosion protection, dimensional tolerances, pin insulators, joints, clamps mechanical, fasteners, electric conductors, sleeves. Fittings must be made to withstand continuous high temperatures material selection must account for high continuous operating temperatures. A range of line termination fittings is available suitable for the majority of conductors in common use. Overhead line systems realized with ensto fittings.
Insulator fittings for overhead power lines with nominal voltage greater than 1 000 v, part 2. Tuofa group is build in 1992, which is the professional creating company in technoloy communication,eletrical. Since its establishment in 1961, overhead line fittings uk limited has worked with national grid formerly the cegb, the dnos and their contractors to provide a complete package of materials for the installation and maintenance of overhead transmission and distribution power lines. Wholesale overhead line fittings overhead line fittings. It can be used in temperatures from 30 to 120 deg celcius. Overhead line fittings and transmission line fittings home. Otds supply all types of tension and suspension clamps. If you have a difficulty finding a right supplier, post your buying leads for free. Cowritten by experts in power engineering, this detailed guide addresses component selection and design, current ieee standards. Overhead distribution involves the securing of conductors to pin, post and spool insulators. A sling is a device that attaches the load to the crane block hook. The most noticeable effect of an increase in temperature for an overhead line is an expansion of the conductor, i. 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.
Transmission line design manual bureau of reclamation. Gaskets for s line fittings are available in several different materials, epdm, silicone, fpm, and ptfe. Ssen 61284 overhead lines requirements and test for fittings. Ssen iso 9001 quality management systems requirements. Overhead line fittings and transmission line fittings. Circle the letter representing the correct answer to each quiz question below.
Anytime an overhead lift is made, workers must perform a jsa. According to the function, jingyoung overhead line fittings. This range includes clamps of forged aluminium and clamps of galvanised. If you have a difficulty finding a right supplier, post your buying leads for free now. Overhead line fittings uk ltd power lines installation. Insulator and conductor fittings for overhead power lines part 1. Insulator fittings conventional 400kn, 300kn, 190kn and 125kn sag adjuster sets, plates and maintenance links required to provide adjustment to insulatorconductor sags and the necessary interface between the tension set, tower and maintenance equipment are contained within the range of fittings available from overhead line fittings uk limited. Overhead power lines presents not only the scientific and engineering basis for the electric and mechanical design, but also comprehensively describes all aspects of most recent technology, including the selection and design of components such as conductors, insulators, fittings, supports and. This page is your overhead line fittings onestop source for the competitive prices and quality from sewing machine suppliers and manufacturers. In 2018 trefinasa acquires the rights of made herrajes brand along with the technical designs and product engineering. Preformed line products australia prides itself on its inhouse, nata accredited test laboratory, for the mechanical testing of overhead power line fittings. The standards, project specifications, standard drawings, and project drawings together completely describe the project to be constructed. Transmission line standards steel towers overhead ground wire assembly.
The overhead line fittings of otds are used for supporting transformers. Iec and ansi standard sizes, glass and porcelain cap and pin, as well as composite insulators. Another program that is used for the calculation of the parameters of overhead lines is the program line constants from atpemtp. There is a trend toward larger conductors, higher voltages, longer spans and greater ground clearances. Test samples shall be supplied by the manufacturer free of. These requirements demand improved mechanical and electrical performance. According to the function, jingyoung overhead line fittings can be divided into. In relevant standards, fittings are frequently designated as accessories which may consist of elements or assemblies.
Ss 424 12 41 overhead line material midspan joints. Generally the alloys and hardware used depend on whether the connector is for a. In practice, this also means that porcelain insulators will be glazed and free. Conductor accessories suspension clamps are available for the majority of conductors in common use. The easiness that s line fittings present as far as assembly and dismantling of process lines and equipment are concerned can not be matched. Starting with the first overhead power lines in 1882, hand ties of many. These conductors are manufactured in accordance with australian standards.
C transmission line standards steel towers overhead ground wire assembly 75. The wcbflow products s line union is leak proof and free of crevices and also consist of two matching ferrules, a gasket, and a clamp. Overhead conductor installation guide recommended practices firs dition 1 introduction this guide provides suggestions for various methods, equipment and tools that have been found practical based on field experience during the installation of general cables transpowr bare overhead conductors on transmission lines. Overhead line hardware is the electric power fittings for transmission line, distribution lines, substation and pole line. Lrfd load and resistance factor design, aisc, manual of steel construction. Insulator fittings for overhead power lines with a nominal voltage greater than 1 000 v, part iv. Low voltage insulated overhead lines lvaerial bundled conductor system. The arruti groups extensive catalogue of products includes electrical lines. The fittings shall be free from defects which would likely cause them to be.
Overhead power lines planning, design, construction. Overhead conductor installation guide general cable. Download citation overhead line fittings according to 10. Overhead power lines presents not only the scientific and engineering basis for the electric and mechanical design, but also comprehensively describes all aspects of most recent technology, including the selection and design of components such as conductors, insulators, fittings. Gzt acsr conductor matthew for which overhead line fittings uk limited was at the forefront of the design of the relevant fittings in collaboration with national grid. The borrower or borrowers representative is responsible for preparing a complete construction contract consisting of the construction contract form rus form 830 or 831 and all applicable specifications, plans, and drawings to construct a specific transmission line project. The nontension fittings are required for use on overhead systems at voltages from lv to 2 kv inclusive. Overhead line, requirements and tests for fittings 5. Synthetic composite insulator endfitting, silicone rubber. Download all of craftsmans most popular costbooks for one low price with the craftsman site license.
Insulator and conductor fittings for overhead power lines performance and general requirements for helical fittings as. Cleaning unilok pipe fittings are free from machine oils. Overhead line hardware overhead line fittings otds. Performance, material, general requirements and dimensions section 1 scope and general 1. Overhead lines requirements and tests for fittings english.
These mechanical connectors consist of service, parallel, and midspan types. From highpurity fittings designed to minimize particle generation and entrapment to highstrength fittings designed to hold high pressure, swagelok products deliver dependable, leaktight performance. Overhead line fittings uk ltd power lines installation and. Top quality suspension and jointing equipment manufactured by otds since 1978. Nes fittings are designed to withstand the mechanical and electrical loads that can occur at any levels of voltage in electrical lines. A wide variety of overhead line fitting options are available to you, such as equal, reducing. Bs32881 insulator and conductor fittings for overhead power lines. This may include upgrading the line from 275,000 volts to 400,000 volts, or. These standards ensure meeting of ergon energys requirements. Tuofa group is build in 1992, which is the professional creating company in technoloy communication,eletrical power items and telecom. C transmission line standards steel and concrete pole structures overhead ground wire.
China overhead line fittings, power line fittings, electric. S line fittings wcbflow products s line versatile fittings were originally designed for both cop cleanout ofplace and cip cleaninplace applications. On a transmission line, except the power tower, conductor and insulator,electric equipment, all left can be called electric power fittings or overhead hardware. Electrical design of overhead power transmission lines. When the worlds most respected companies want to make lasting connections, they turn to swagelok. By providing this manual, general cable makes no representations or. You can also choose from elbow overhead line fittings, as well as from stainless steel, plastic, and steel overhead line fittings, and whether overhead line fittings is forged, or casting. Dont overhang tape on the first thread as it might be entered the system.
For each span of the line between successive towers supporting the conductor, it leads to a greater sag between the towers and a reduced distance between the conductor and whatever is underneath. Overhead power line fitting, overhead distribution fitting. Plp regularly upgrades and replaces test equipment to retain leadership in this area of expertise. Technical specification for helical fittings for overhead powerlines page 6 of 14 specification ets010903 ver 3 ergon energy corporation limited abn 50 087 646 062 nominal holding tension withstand slip of the fittings shall be, 15% of the mcbl of the conductor or 3. Make sure the equipment is free to be lifted before.
The new brand trefinasamade continues the same product line that made developed during more than 50 years with remarkable success and quality. Although virtually exact scale, electric avenue can be used by most regular ooho rtr trains, streetcars,and interurbans. The standards contain general requirements for constructing substation and transmission line projects. At the dead end pole, jingyoung overhead line fitting is all kinds of parts which used to connect the stay wire. Electrical design of overhead power transmission lines discusses everything electrical engineering students and practicing engineers need to know to effectively design overhead power lines. Wood lane works, nortonjuxtatwycross atherstone warwickshire cv9 3qb tel.