Current ratings the current ratings are thoroughly presented in era 6930 part v. Raychem heatshrinkable medium voltage terminations ixsufoxsuf. The supplied length of cable is not sufficient to perform the intended job, e. The termination could come at either the users end socket, the patch panel or. Cable failures cables damaged after installation a tap into an existing cable tee or wye splices. Figure f2 cable feed into conduit at floor level c from cable reel to cable tray, the cable is fed from the top of the reel to maintain required curvature.
At present, numerous high voltage xlpe cable systems with nominal voltages up to 500 kv and. Heat shrink outdoor cable terminations are also available for 3. It contains also the results of many tests carried out on xlpe cable systems, withstand voltage. A for indoor terminations cable end box order kits ref. Installation work will follow a sequence of activities. Technical aspects of ehv xlpe cable end termination and on site brief procedure 1sachin kumar gupta, 2arun pachori 1pg student, 2associate professor, dept of ee, government engineering college, jabalpur, india abstract. The cost of energy losses can be reduced by using a larger conductor. First steps to reliability xlpe cable preparation controlling the initial installation costs of any power system is critical to operating companies and contractors alike. Pdf water ingress in highvoltage crosslinked polyethylene. Insulation resistance testing of low voltage cables in the field. The objective of this paper is to provide an source of information on ehv xlpe cable end termination processes. Pdf onsite commissioning test and diagnostics of 220kv.
Raychem high voltage cable accessories up to 170 kv. The development of high voltage xlpe cable systems goes back to the since then production and material technology have improved significantly, providing reliable and maintenancefree products to the utility industry. Compact design for limited working access in cable end termination boxes 3m cold shrink 3 core polymeric cable terminations are suitable for both 6. Pdf electric field distribution in 2 kv xlpe cable termination. Technical aspects of ehv xlpe cable end termination and on. A checklist and an onsite risk assessment pad have been produced to assist the process of. Traditional cable terminations are based on selfsupporting. First steps to reliability cable cleats, cable joints. Its how the connection is made between the cable and the equipment or junction. Sps 11kv cable terminations are available to terminate hv high voltage single core and 3 core xlpe.
Model cable termination filled with silicone oil and water. If the cable is armoured, bonding of the armours must be completed using the appropriate armour earthing kit. A proper design of cable termination is essential in reducing the. Raychem heatshrinkable medium voltage terminations ixsu.
Crosslinked polyethylene, commonly abbreviated pex, xpe or xlpe, is a form of polyethylene with crosslinks. It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, and insulation for high tension high voltage electrical cables. These three cable types each require their own accessory designs, so it is important to identify the cable construction details in order to select the right joint or termination. Xlpe cable withstands smaller radius bending and is lighter in weight, allowing for easy and reliable installation. Xlpeswapvc 4core bs 5467 600 v xlpe insulated steel wire armoured and pvc sheathed cable with copper conductors. Some cables, the bare conductor is connected to the to a terminal strip or terminal board or block. Termination of copper tape screens on 3 core swa xlpe cables. Xlpe insulation 9 outer semiconductor shield 9 metallic screen 910 outer protective jacket 11 table of cable components 12 metallic screens earthing shortcircuit operating conditions 14 grounding methods 14 earth cable protection 15 earthing diagrams 1617 laying methods 1819 cable reels 20 permissible bending radius 20. Cable installation after satisfactory testing the cable drums will be dispatched to site for installation work.
Wooden drum shall be properly seasoned sound and free from defects. Procedure of xlpe cable jointing procedure armoured cable. Water treeing and dielectric loss of wtrxlpe cable insulation. How to make termination joint to the 11kv 3 core xlpe cable. Pdf water treeing and dielectric loss of wtrxlpe cable. Resistance resistance reactance capacitance cross sectional insulation of pvc of pvc approx of cable at 20o c at 90o c at 50 hz. Cable termination kits using heat shrink technology are suitable for indoor and outdoor terminating of 3. System maintenance and repair are also substantial factors in overall cost. Investigation life time model of 22 kv xlpe cable for.
Electric field distribution in 2 kv xlpe cable termination model from finite element method. Itk coldshrinkable indoor termination otk coldshrinkable outdoor termination. Single core termination for xlpe copper wire screened. Outdoor termination application a kit of 3 terminations for use outdoors and exposed to prolonged sunshine and other weather conditions. This 11kv cable jointer training video features use of the outdoor armour earth kit used to effectively cable gland, terminate and. 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. Standards the cable is manufactured and tested according to bs 5467. Hdc 630 base kit include material to connect 2 cables. Heat shrink cable termination outdoor hv 11kv 33kv 3 core. Load losses in xlpe cables are primarily due to the ohmic losses in the conductor and the metallic screen. This specification includes heat shrink, cold shrink and cold applied joints and terminations for lv. Nexans cable terminations are suitable for connecting and terminating 33kv single core polymeric cables with stranded copper or aluminium conductors, 16800sqmm 33kv terminations connect mediumhigh voltage power cables with polymeric insulation including xlpe and epr to mvhv switchgear, transformers and cable boxes suits single core bonded or easy strip semiconductive screens. May 14, 2017 its what you do with the end of a cable.
Technical aspects of ehv xlpe cable end termination and. To connect a third or fourth cable pc 630 with soc 630 alternatively pc 630250 with soc 250 should be used. The cable is fed from the bottom of the reel so that its curvature is continuous with no reversed bends. High voltage xlpe cable systems technical user guide. Here youll find a range of products for the power cable accessories market which has now grown to reflect the broader range of materials used by our core customer base across all industry sectors. Check this is the latest process zone version before use. Milliken copper cable with insulated wires, xlpe insulated 230400420 kv, a 230400420 kv outdoor oil filled composite termination with an epdm stress cone, a 230400420 kv oil filled gis termination with an epdm stress cone.
Available without connectors if required delete m from part number note. Installation, testing and jointing of lt and ht power cables. Furthermore, the splicing and terminating methods for xlpe cable are simpler in comparison with other kinds of cables. Procedure of cable gland range hawke international. Practical hv cable jointing and terminations for engineers. Most of the cable terminator in india avoid using cable gland for hv motor cable termination. Power cables for nominal system voltage up to 33kv. Furthermore, condition monitoring for xlpe high voltage cable was performed by many researchers in order to monitor the degradation of xlpe insulating material1,2,3. Insulation tubing including coextruded stress control, sealant tapes and installation. The test concerns a 230400420 kv cable system with. Onsite commissioning test and diagnostics of 220kv xlpe cable system.
The cost of energy losses can be reduced by using larger conductor. Raise the conductor to the specified maximum test voltage and hold for 15 minutes. If performed by means of direct voltage dc, reduce the test set potential to zero and measure residual voltage at discrete. In addition, xlpe insulated cable models for high voltage applications have been studied and investigated in order to. The insulation screen of the xlpe cable was terminated in the water layer. Were here to save you time, money and effort, and to leave you free to run your business. To connect polymeric insulated cable to equipment and for the outdoor terminating on to overhead lines or busbars. I am sure that in europe people do proper eexd cable termination for eexd motors. Raychem heatshrinkable medium voltage terminations ixsufoxsuf are widely acknowledged in the industry and feature an unique integrated znobased stress control system, flexibility of usage for crimp or mechanical lugs, unlimited shelf life and rangetaking kits. How to make termination joint of 11kv 3 core xlpe cable this video is explains the complete procedure of cable termination joint.
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