The cables to be laid using this method must have the serving of bituminised paper and hessian tape so as to provide protection against corrosion and electrolysis. Saw the cable to produce a square end procedure this leaflet shows the procedure for fitting a complete termination on an aei mineral insulated cable. Sps high voltage cable joint kits are designed and tested to bs7888 and cenelec hd 628 s1 and hd 629 s1 hv cable joints kits are. Enhancing the reliability of cable networks cable accessories for upto 245 kv energy products division. Xlpe cable at different locations between new haldia. Although, the armoring and outer sheath takes care of the physical safety of cable, adequate care has to be taken by cable manufactures during manufacturing of the cable.
Minimum operating clearances for a single unit installation. Practical hv cable jointing and terminations for engineers. For example, when removing cable insulation, the installer. Procedure of xlpe cable jointing procedure armoured cable. We are specialized of providing the services over a range of cables for ht cables. Hdc 630 base kit include material to connect 2 cables. A key to good cable preparation is the use of sharp, high quality tools. Energy high voltage cable accessories up to 245 kv understanding the value of high voltage cable accessories as essential elements in a cable system since the foundation of raychem in 1957, we have specialized in the development, design, manufacture and installation of cable accessory products.
Wires form the foundation of a circuit and joining them together is an essential part of making a circuit work. Turn the pages to discover cable splicing and termination techniques that can help reduce the risk of errors that. The quality of a joint or termination depends to a large extent on the skill of cable jointer. Install a cable marker at each change in cable direction, joint position and entry points to buildings. Ltht power cables, installation, jointing, termination, testing. The most innovative utilities and industries around the world, including mining, marine, offshore and nuclear, use our power cable accessories. Types of outdoor circuit breakers voltage class, installation, external design.
How to make termination joint of 11kv 3 core xlpe cable this video is explains the complete procedure of cable termination joint. Introduction ht power cables, lt power cables, ht xlpe. Raychem joints also eliminate mixing, pouring and toppingup delays. These joints are designed for compression connection, mechanical connectors or soldering of cable conductors. System maintenance and repair are also substantial factors in overall cost. Method statement for installation of high voltage hv cables. Dimension x is from the centre of the connector to the screen points. Technical note voltage cable splicing and cable termination. These limits should not be used for cables subjected to pulling tensions during installation. Heat shrink straight through joint upto 36 kv for 1 core xlpeepr insulated cable heat shrinkable straight joint upto 36 kv for aerial bunched cable heat shrinkable straight through joints for 72. Banda yeh bindaas hai malayalam movie dvdrip download movies. For applications up to volts, the joints may be filled under load conditions. Power cable installation guide figure f5 multiple sheaves figure f6 sheave arrangements for feeding into cable tray training radius the training radius is the final positioning of cable ends after the cable has been placed in the raceway. When the various layers are removed, cuts should extend only partially through the layer.
Commissioning tests for hv underground cables up to 33kv swp page 2 of standard work practice sp0407 ver 16 ergon energy corporation limited abn 50 087 646 062 work site communication equipment e. Page 163 cable cleats, cable joints, cable terminations, cable. Cable joints and terminations caledonian cables ltd. As the joint components are of heatshrinkable material, they can also be held in stock in. The basic principles of cable jointing and terminations construction of electrical power cables, different types of cables for various voltage ratings and manufacturing aspects different types of connectors and connection methods different methods of cable terminations and jointing and choosing an appropriate type for every. We use high voltage spike to detect fault in ht cable by thumber but it may be affect property of cable. High voltage cable splicing and cable termination techniques final, by david e. Hv cable joints terminations high voltage 11kv 33kv heat.
Our engineers explore and survey the site and make every. Wire, cable, and terminations wct 1design guidelines and standards basis of design this section applies to the design and installation of wire and cable systems and terminations. The cable generally comprises of the conductor, insulation material, bedding, beading armoring, and outer sheath etc. Get contact details and address of ht cable jointing work firms and companies. Compare cable data with drawings and specifications. Cables installed in ground shall be laid in a single, horizontal layer spaced 450mm apart. The completed joint should be left uncovered before backfilling for two hours to allow the resin to fully cure. Contractor shall take back all the cable drums from site after successful laying, testing and commissioning of cables. Cable jointing and termination pracuces are hrrctly described for general guidance. A guideline for laying of cables and installation of sleeves. Under the wellestablished brand name raychem, raychem rpg offers a comprehensive range of cable accessories for all cable types. It j desirable to obtain the detailed procedure front the cable manufacturers, 0. Jointmaster has been situated in alberton in greater johannesburg for over 25 years.
Method statement for installation of high voltage hv. The minimum insulation resistance to earth or between phases shall be 100 megohms. Shrink polymer systems 4sc hv stress tape is a special cross linked grey butyl. First steps to reliability xlpe cable preparation controlling the initial installation costs of any power system is critical to operating companies and contractors alike. Even for new cable more than one time hipot test at site is not advisable by manufacturer also manufacturer also do hipot at time of manufacture. Direct laying of underground cables this method is the most popular as it is simple and cheap. Joints power cable accessories manufacturer india,cable. Installation, testing and jointing of lt and ht power cables up to. Ht cable jointing work with the comprehensive industry knowledge of allied domain, we are engaged in presenting a superior quality range of ht cable jointing work. Tinned copper mesh and braid reestablish the metallic shielding across the joint. Established in year 1998, gmg international an iso 9001. It was successfully completed at cesi laboratory in milan, italy in 2004. Enhancing the reliability of cable networks cable accessories.
Raychem power cable accessories have over 40 years of design life which has been proven by longterm ageing tests and as has been witnessed in the field. A complete termination normally consists of a gland and a seal assembly and, where plastic covered cable is used, a gland shroud. Finding the root cause of cable failures can lead to better maintenance practices and produce more reliable operation in the future. Also speak to a recognised good mv cable test engineers. The instrument used for this measurement shall have a. To connect a third or fourth cable pc 630 with soc 630 alternatively pc 630250 with soc 250 should be used. Ensure cable joint is level and both cables and joint are supported independently. Concurrent access authorities may be issued on the one cable provided the controller is satisfied that. In this next video the procedure for installing heat shrink cable terminations is covered including key stages of the mv hv cable preparation process a 33kv single core cable termination with polymeric xlpe insulation is installed.
The cast resin system provides the electrical insulation, mechanical protection and moisture imperviousness to the joint. A tough abrasion resistant black jacketing tube or. We provide a wide array of hightension work services, which is performed by our capable employees. The supplied length of cable is not sufficient to perform the intended job, e. Safe work practices on high voltage cables revision no. The company has a capacity to manufacture over 36,000 kilometres km of power cables, 0. Cables shall be tested for insulation resistance with an insulation tester i. A good cable jointing and installation provides a better supply of power. You find draka communications in more than 32 countries in europe, asia, north. Power cable accessories under the wellestablished brand name raychem, raychem rpg offers a comprehensive range of cable accessories for almost all cable types. Our factory consists of over 45 well trained staff members. Cable cabinet with possibilities to joint and toff 12 24 kv xlpeinsulated cable above ground.
By ensuring that delegates are conversant with the full range of joints, accessories and terminations in use today, we aim to provide a comprehensive update on. Low voltage and high voltage cable testing electrical. Sps 11kv heat shrink cable joints are tested and specified to joint high voltage 3 core power cables with xlpe or epr insulation and steel wire armour swa and steel wire braid gswb cable. As an example, the final result of a cable failure may be that the insulation failed and the cable flashed over. Calculation of nominal cross sectional area of the high voltage cable hv or ht cable. Need some advise on doing some end to end phasing test on 3km 110kv cable, the cable impedance is 34ohms, one end of line is overhead and it then goes underground and going overhead again, overhead cable one side is about 3km then undergrond of 3kms and overhead again for 30kms, can we use a generator to inject current into this cable. If a 4 core 185mm xlpeswapvc termination with indoor earthing is required. How to make termination joint to the 11kv 3 core xlpe cable. Jul 08, 2017 how to make termination joint of 11kv 3 core xlpe cable this video is explains the complete procedure of cable termination joint. All installations shall comply with codes and standards adopted by the authority having jurisdiction ahj. Install a cable marking tape 250mm below the finished ground level covering each cable.
The cable joint is suitable for various cable combinations, follow the individual guidance on the pages within the jointing instruction for the relevant cable preparation. Netaworld online versus offline partial discharge testing for cable assessment 65 figure 1. Mix the resin as instructed on the resin pack and pour into the joint case until the case is completely full. The aim of a cable jointer must therefore to be to obtain a joint whose electrical properties are as good as the original cable both in electrical and mechanical terms. This specification includes heat shrink, cold shrink and cold applied joints and terminations for lv. Qtii and qtiii cold shrink silicone rubber is specifically formulated as a high trackresistant material with hydrophobicity water repelling action to virtually ensure a long life expectancy.
Inspect bolted electrical connections for high resistance using one of the following methods. Inspect exposed sections of cables for physical damage. Jun 07, 2011 in used cable more than 5kv may be damage insulation resistance of cable. High voltage xlpe cable systems techincal user guide brugg cables page 3 1. Weems tn1452 20 pp illus august 1976 unclassified 1. A guideline for laying of cables and installation of sleeves accurate and faultless installation and assembly of cables. Low voltage and high voltage cable testing low voltage xlpe distribution cables. Hv cables y outer sheath stripping tools, lvhv cables. Clearances listed in this manual are minimum for system oper ation. Shrink polymer systems 11kv cable joints are tested to cenelec standards hd 628 s1 and 629. Low voltage and high voltage cable testing electrical notes.
First steps to reliability cable cleats, cable joints. Heat shrink transition joint upto 36 kv for xlpeepr mind cable heat shrink straight joints upto 36 kv for pilc cable. These include three main types of wire splices, soldering and other devices, such as wire nuts, screw terminals and crimp connectors. Jointmaster has perfected one stop availability and supply of high tech, quality cable accessories for transmission, distribution, generation, industry, municipal, wholesale. This method statement defines the procedure step by step to implement the correct practices for installation of high voltage hv cable in order to ensure that the job execution complies with the project requirements and serves the intended function to satisfactory level.
High voltage xlpe cable systems techincal user guide brugg cables page 2. High voltage xlpe cable systems technical user guide. Inquiry if you are interested in ht cable jointing procedure,please feel free to give your inquiry in the form or the email below. Technical specification for 112233 kv nominal voltage ht xlpe power cables 1. Mix the resin as instructed on the resin pack and pour into the joint case until the case is.
May 14, 2014 sps 11kv heat shrink cable joints are tested and specified to joint high voltage 3 core power cables with xlpe or epr insulation and steel wire armour swa and steel wire braid gswb cable. Rpg cables brand is approved with all major utilities, epc companies and electrical consultants in india. Insulating tubing and semi conducting tubing reinsulate and reshield the areas over the spliced conductors. General information on high voltage cable systems 1. Hai, welcome the sharing from experienced minds the best methode of ht cable jointing procedure 33kv singlecore copper cable for trifoil. Relationship between capacitive and resistive currents the ratio of the two currents i r i c is the tangent of the angle.
The design of cable jointing and termination accessories is based on this perception. Cable failures cables damaged after installation a tap into an existing cable tee or wye splices. Mv 1830 36kv heat shrinkable indoor and outdoor cable termination kits. Procedure shall be strictly follows as per manufacturers guidelines. The table below has the earth fault duty of the hv cables used by ergon energy.
1583 184 1490 966 1297 837 1075 1000 1094 150 571 282 1496 87 723 779 1261 792 1571 677 743 839 481 813 1546 1065 453 66 228 523 103 328 171 490 432 19 202 799 635 42 305 277 715 637 1153