Catalogue tlp transmission silicone insulators line post 69 kv to. Top quality suspension and jointing equipment manufactured by otds since 1978. High voltage forged steel pin, standard long shank, shanks diameter. Iec and ansi standard sizes, glass and porcelain cap and pin, as well as composite insulators. Overhead line fittings uk ltd power lines installation and. Guide to the installation of overhead transmission line conductors, is to provide. Wide product offering blackburn has a complete line of splices, taps and terminals for all overhead distribution applications. The purpose of undertaking overhead line testing is to prove system integrity after installation work. We offer a wide range of hardware and fittings for all types of conductor and voltages from lv networks up to 500kv transmission lines and substations. The intent of this guide, along with ieee standard 524, guide to the installation of overhead transmission line conductors, is to provide guidance for an optimized installation of overhead conductors.
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. Overhead distribution involves the securing of conductors to pin, post and spool insulators. Overhead lines requirements and tests for fittings. Economical fittings properties and typical values of lv abc aerial bundle cable overhead line systems realized with ensto fittings 7. The top countries of supplier is china, from which the percentage of electrical overhead line fittings supply is 100% respectively. Pssi 16 opsaf10016 high voltage overhead lines work on. By providing this manual, general cable makes no representations or.
Overhead line connectors c04 cat no conductor type main line diameter tap diameter p1520cc copper 3. Main trunk lines must have a minimum slope of 14 inch per 10 feet towards the pump. This may include upgrading the line from 275,000 volts to 400,000 volts, or. Plp regularly upgrades and replaces test equipment to retain leadership in this area of expertise.
Overhead power line fitting, overhead distribution fitting. Ergon energy corporation limited abn 50 087 646 062. The performance benefits of kli transmission line post insulators are listed below. While any form of galvanised steelwork can be manufactured to requirements we offer the standard earthing brackets, expulsion fuse switch brackets and transformer platforms. Unial is supplied in packs of 250 gram cans or packs of 1kg cans and 25kg kegs. Quality and reliability proven designs and consistent manufacturing techniques provide for consistent results in the field. Offset when an assembly of fittings on a pipeline makes one section of pipe out of line and parallel to a second. This procedure applies to all new overhead line installations that are to be connected to essential energys network. 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. Preformed line products australia prides itself on its inhouse, nata accredited test laboratory, for the mechanical testing of overhead power line fittings. Technical specification for overhead line porcelain and.
The line end fittings are radially swaged on to the core rod to provide the. About us hebei yipeng line equipment manufacture co. For the availability of 6000psig and 0psig, contact your local distributors. Overhead line fittings, find quality overhead line fittings products, overhead line fittings manufacturers, overhead line fittings suppliers and exporters at website title. Ssen 61284 overhead lines requirements and test for fittings.
Overhead line fittings and transmission line fittings. Technical specification for helical fittings for overhead powerlines. Production ensto utility networks offers accessories and solutions for. The use of unial on power connectors, can have a major effect on the connector performance and enhance electrical efficiency. A wide variety of electrical overhead line fittings options are available to you, there are 758 suppliers who sells electrical overhead line fittings on, mainly located in asia. Ssen 50326 conductors for overhead lines characteristics of greases. Down size the main trunk line after every few junction boxes or branches in order to maintain sufficient suction.
The use of this procedure is for accredited service providers, essential energy staff and accredited subcontractors. Esfi overhead power line safety construction final created date. We have sales offices in scandinavia, central europe, baltic countries and russia. Construction of fittings similar to acsr conductor. The range of conductor accessories and fittings includes suspension clamps, bolted and integral. Pipe fittings for high pressure application are available. The company founded in 1995, we are professional supplier and manufacturer in electric power fittings, especially on aerial overhead. Overhead line fittings and transmission line fittings home. 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. Insulator and conductor fittings for overhead power lines performance, material, general requirements and dimensions.
Standard for distribution line design overhead page 6 of 206 standard stnw3361 ver 2. Overhead line connectors c04 horizon utility supplies ltd. There is a trend toward larger conductors, higher voltages, longer spans and greater ground clearances. Generally the alloys and hardware used depend on whether the connector is for a. Cross fittings may deteriorate when temperatures change, because cross fitting is made at the centre of the four connection points. Wood lane works, nortonjuxtatwycross atherstone warwickshire cv9 3qb tel.
These standards ensure meeting of ergon energys requirements. Conductor accessories jumper weights are available for single, twin, triple and quad conductor configurations. In relevant standards, fittings are frequently designated as accessories which may consist of elements or assemblies. Ground line protection r 500mm above and 500mm below ground line.
Nes fittings are designed to withstand the mechanical and electrical loads that can occur at any levels of voltage in electrical lines. Applies to fittings used for overhead lines of nominal voltage above 45 kv. Powerline hardware p608z, pins, fittings, overhead products. A device for controlling the potential gradient at insulator end fittings. Limited free company information from companies house including registered office address, filing history, accounts, annual return, officers, charges, business activity. It may also be applied to fittings for overhead lines of lower nominal voltage and to similar fittings for substations. Preassembled fittings some fittings are available with 4dimensionstrut system compatible hex head cap screws and these fittings and finishes will be channel nuts preassembled. Tuofa group is build in 1992, which is the professional creating company in technoloy communication,eletrical power items and telecom. Jingyoung overhead line fitting is designed to hang, connect or protect conductors or insulators.
Overhead plumbing general recommendations vacuum piping to be type m copper or schedule 40 pvc per product specs and local code. Overhead line fittings uk ltd power lines installation. This specification covers the design, engineering, manufacture, testing, supply and delivery of. According to the function, jingyoung overhead line fittings can be divided into. External companies should not use these standards to construct nonergon energy assets. Finishes are available in any standard combination. Applies to fittings for overhead lines of nominal voltage above 45 kv. Ssen 100451 metallic materials charpy impact test part 1. The standard pressure ratings for each thread sizes are based on asme b31.
Overvoltage is induced on the line when lightning strikes an overhead line or its vicinity. Overhead line hardware is the electric power fittings for transmission line, distribution lines, substation and pole line. On a transmission line, except the power tower, conductor and insulator,electric equipment, all left can be called electric power fittings or overhead hardware. Technical specification for overhead line porcelain and glass insulators. Overhead distribution 1 f f 21 1609 1 1 2422483 00 100 c c 22mm hole pole cap pole cap bracket xarm 1 1 f f 500mm f f g. This specification sets out the requirements for the manufacture, testing and delivery of. Every 50 feet of main trunk line should be considered a user. Electric transmission specifications and drawings, 115kv through.
Compression anchor clamps are available either as bolted type suitable for detachable jumper palms or the integral types having angled or straight jumper facility. Mechanical parameters of overhead power lines, construction of lines, and. At the dead end pole, jingyoung overhead line fitting is all kinds of parts which used to connect the stay wire. Burndy overhead h3 mechanical bolted tap connectors burndys line of mechanical tap connectors is the most complete, dependable and economical available.
Otds supply all types of tension and suspension clamps. Calculation of parameters of overhead power lines hussein umarji n 49354 instituto superior tecnico av. Ssen 50341 overhead electrical lines exceeding ac 45 kv. Technical specification for overhead line porcelain and glass. Ssen 60305 insulators for overhead lines with a nominal voltage above 1 kv ceramic or glass insulator units for a. Overhead line clearances to ground and objects for reasons of safety. C transmission line standards steel towers overhead ground wire assembly 75. It located in the famous capital of electric in chinashahe, nearby 107 national road, handan airport and the railway station. Overhead maintenance costs, looking at practicalities of calculating trolleybus overhead equipment, is downloadable here 11k pdf file. Starting with the first overhead power lines in 1882, hand ties of many. Helical fittings for overhead power lines endeavour energy.
May be applied to fittings for overhead lines of lower nominal voltage and to similar fittings for substations. The magnitude of the overvoltage is approximately the same in all phases and may rise to several hundred kilovolts between the phase and earth. These requirements demand improved mechanical and electrical performance. Standard for distribution line design overhead these standards created and made available are for the construction of ergon energy infrastructure. Overhead line fittings are required for use on overhead systems ranging from lv to 2 kv. C transmission line standards steel and concrete pole structures overhead ground wire assembly 76.
Insulator and conductor fittings for overhead power lines performance and general requirements for helical fittings as 12141983 hotdip galvanized coatings on threaded fasteners iso metric coarse thread series as 1222. Wholesale overhead line fittings overhead line fittings. Gary, heres acouple of things about overhead oil lines 1only use flare fittings. 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. Using 18 905 n 4250 lb, b ased on test data, for metal fittings. Line termination fittings are available for the majority of overhead line conductors in common use. Overvoltage travels along the line to the nearest pole where it discharges by igniting an arc between the cros. Transmission line design manual bureau of reclamation. Pdf a detailed investigation of overhead line insulators. Overhead line hardware overhead line fittings otds. A wide range of hardware and fittings is offered by otds. Page 4 of 43 specification ets100101 ver 5 ergon energy corporation limited abn 50 087 646 062 2. D transmission line standards wood pole structures overhead ground wire assembly 77.
Jun 03, 2006 5 coupling fittings for overhead line insula tors i. Overhead line fittings, overhead line fittings products. The schedule of rates for erection of line materials will cover all the works described in this section unless specifically excluded herein. The overhead line fittings of otds are used for supporting transformers. These mechanical connectors consist of service, parallel, and midspan types. Pipe fittings 4 how to order unilok pipe fittings are ordered by part number as shown as below. The contents of the corrigendum of september 1998 have been included in this copy. 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. Work on, or within the safety distance of, phase conductors, insulators and associated fittings is outside the scope of this safety instruction and is covered in pssi 4.
Powerline hardware p608z high voltage forged steel pin. Analysis and design of trolley overhead, looking at considerations of the advantages of increasing line voltage to reduce current, line fittings and conductor wire sizes, is downloadable here 22k pdf file. Nominal holding tension withstand slip of the fittings shall be, 15% of the mcbl of the conductor or 3. To specify the requirements for overhead line fittings for use on endeavour energys electrical networks. Nuts and bolts are not included with the fittings and must be ordered separately, unless noted. Vacuum plumbing layout recommendations applies to models. 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. Kiessling, f, open pdf file from servlet nefzger p, nolasco j. Refer figure 1 figure 1 ground line protection r manufacturing detail steel pole 12. Basic electrical safety stay aware of overhead power lines reference 1910 subpart s 1926 subpart k many accidental electrocutions occur even though the victim was paying close attention to potential electrical hazards located right in front of them. Ss 424 12 41 overhead line material midspan joints. Overhead line fittings uk limited has available a comprehensive range of conductor fittings and accessories to suit the majority of conductors in common use and also some of the more specialised conductors e.
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