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. Crosslinked polyethylene, commonly abbreviated pex, xpe or xlpe, is a form of polyethylene with crosslinks. Raychem low voltage heatshrink cable joints up to 1 kv. Insulation resistance testing of low voltage cables in the. Medium voltage underground cables 4 cable l cable power circuit design 7 n conductor 78 n conductor screen 8 n insulation 8 n insulation screen 89 n metallic screen 910 n outer protective sheath 1011 l table of cable elements 12 l cable constructions l cable drums 14 l cable tests following production 15 accessories l introduction 16 l connectors and lugs 16.
Details make the difference the company polycab, an iso 9001. Cable termination using heat shrink terminations 33kv. Test methods for electric cables, cords and conductors. Jointing of power cables should be as simple as twisting and taping the wire. In the following video you will see the cable jointer install a 33kv indoor heat shrinkable cable termination onto xlpe insulated cables, a type of polymeric cable the cable is unarmoured type with copper wire screens in accordance with bs7870. High voltage xlpe cable systems techincal user guide brugg cables page 8 losses through skin effect the losses caused by the skin effect, meaning the displacement of the current against the conductor surface, rise approximately quadratic with the frequency. Nexans srdi terminations are manufactured from highquality materials which ensure longterm performance and the highest. A wide variety of xlpe cable and termination kit options are available to you, such as copper, aluminum. Wooden drum shall be properly seasoned sound and free from defects. The material makes the difference te connectivity raychem cable. Jointmaster proudly introduces the new eelcon range of cold shrink terminations for indoor and outdoor use on single core xlpe cables up to 24kv. The supplied length of cable is not sufficient to perform the intended job, e.
Nexans cable terminations are suitable for connecting and terminating 11kv 3 core polymeric cables with stranded copper or aluminium conductors, 35400sqmm 11kv terminations connect mediumhigh voltage power cables with polymeric insulation including xlpe and epr to mvhv switchgear, transformers and cable boxes suits 3 core bonded or easy strip semiconductive screens. Twenpower mediumvoltage xlpe cables are available in. Pdf water ingress in highvoltage crosslinked polyethylene. Pdf insertion of embedded electrodes ees inside a mv xlpe cable. Professional armoured cable manufacturer, such as swa cable,awa cable,sta cable,xlpe cable,pvc cable,including cable glanding procedure page 8 product featuressuitable for various cable types with outer diameter of min. Pdf analysis of a mv xlpe cable termination design with. The file is used carefully and uniformly around the cable until the. Unarmored variable frequency drive vfd cable termination. Jointmaster offers a comprehensive range of medium and high voltage cable terminations aimed at the local and export markets. Observe cable bend radius limitations and follow lug manufacturers installation procedure. Tool is supplied completely with an operating manual in a box. Article pdf available in ieee electrical insulation. The terminations cater for all cable types including pilc and xlpe for both indoor and outdoor applications in size ranges from 16 up to sq mm up to 36kv these terminations have been independently tested by kema to the requirements of cenelec hd629. Xlpe cable preparation cable cleats, cable joints, cable.
Water ingress in highvoltage crosslinked polyethylene xlpe cable terminations. Indoor outdoor terminations for 3 core xlpe armoured. Xlpe cables cross linked polyethylene extruded 33kv to 400kv ffc fluid filled cables 33kv to 400kv pplffc paper polyethylene laminated 275kv and 400kv mind mass impregnate non draining up to 33kv gil gas insulated lines. Investigation life time model of 22 kv xlpe cable for. To connect polymeric insulated cable to equipment and for the outdoor terminating on to overhead lines or busbars.
Most of the cable terminator in india avoid using cable gland for hv motor cable termination. Technical aspects of ehv xlpe cable end termination and. Page 163 cable cleats, cable joints, cable terminations, cable. Cable section with or without jointtermination 2 no pressure test. A long tail length 400mm in one silicone cold shrinkable tube, eliminates the necessity to overlap numerous tubes. Go to contents page previous page next page product range voltage range. Terminating unarmored variable frequency drive vfd cables. Procedure for glanding and termination of power and control cables downloads at download free pdf files,ebooks and documents. The dielectric losses in the xlpe insulation system are present also at no load current and depend primarily on the magnitude of the operating voltage. 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. 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. Raychem heatshrinkable medium voltage terminations ixsu. The test concerns a 230400420 kv cable system with.
Practical hv cable jointing and terminations for engineers. Polymer mechanics, deformations, and failure of xlpe. Limitations of online pd for xlpe or epr cables can not detect pd far from sensor not too bad since bulk of cable will never produce significant pd anyway little experience need to calibrate mv into pc in offline setup if measuring pd at a termination, then could confuse switchgeartransformer pd. High voltage xlpe cable systems technical user guide. Mv cable accessories installation best practice pdf ensto. Compact design for limited working access in cable end termination boxes 3m cold shrink 3 core polymeric cable terminations are suitable for both 6. The use of a kit designed for 11kv, xlpe insulated cable, will not normally work effectively on an 11kv paper insulated cable.
Kits are supplied complete with full earthing accessories, mechanical connectors. The bidder shall submit 4four sets of drawingsdesign documentsdatatest reports as may. Dielectric losses in xlpe cables are lower than for epr and fluidfilled cables. Figure 9 singlecore 36 kv cable with xlpe insulafion, bonded insulafion screen, copper wire earth screen, water. Check to ensure that the kit you are going to use fits the cable. By not taking care or using incorrect methods, conductors can, quite often, be nicked, this. First steps to reliability cable cleats, cable joints. I am sure that in europe people do proper eexd cable termination for eexd motors. Raise the conductor to the specified maximum test voltage and hold for 15 minutes. Nexans cable terminations are suitable for connecting and terminating 33kv 3 core polymeric cables with stranded copper or aluminium conductors, 50400sqmm 33kv terminations connect mediumhigh voltage power cables with polymeric insulation including xlpe and epr to mvhv switchgear, transformers and cable boxes termination kits suit 3 core bonded or easy strip semiconductive. 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.
In every option, a basic method of stress relieving with resistive layer over the end of. Raychem high voltage cable accessories up to 170 kv. Technical specification for underground power cables and. The cable shall be suitable for laying underground with uncontrolled back fill and chances of flooding by water and suitably designed by the addition of chemicals in the outer sheath to be protected against rodent and termite attack. The termination could come at either the users end socket, the patch panel or. Heat shrinkable nexans 11kv33kv srdi termination kits suitable for threecore medium voltage mv polymeric xlpe and epr insulated cables within an enclosed indoor environment, i. If performed by means of direct voltage dc, reduce the test set potential to zero and measure residual voltage at discrete. For cables rated 600 v, the minimum acceptable insulation resistance values for cable lengths from 100 to feet. These test requirements are for xlpe type cable as this is ees standard cable type. Testing of high voltage cables manual horizon power. Cable cable components 6 conductor 78 inner semiconductor shield 9 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.
This is probably the number one cause of all joint and termination failures. The fastest growing company in the indian cable industry with consistent growth. Outdoor termination application a kit of 3 terminations for use outdoors and exposed to prolonged sunshine and other weather conditions. Cable cabinet with possibilities to joint and toff 12 24 kv xlpeinsulated cable above ground. Refer to the kit label and the title of the installation instruction. Test methods for accessories for power cables with rated voltages from 6 kv. Step 6 visually inspect the cable on which it is proposed to carry out work to ascertain its general. Cold shrink terminations for 1 core 7,2 24kv xlpe cable. Xlpe cable due to advances in cable technology, xlpe is. The cost of energy losses can be reduced by using larger conductor. Go to contents page ducab cable manufacturing company. In addition, xlpe insulated cable models for high voltage applications have been studied and investigated in order to.
This unique design incorporates two unparalleled features offered in a cold shrink termination. Cable failures cables damaged after installation a tap into an existing cable tee or wye splices. Installation instruction esd4871au509 termination for screened. It may be prudent in certain circumstances to pressure test the cable section prior to connection to the system where it is considered appropriate to do so. The objective of this paper is to provide an source of information on ehv xlpe cable end termination processes. Specification jts040110 ver 1 joint document between energex and ergon energy energex limited abn 40 078 849 055 ergon energy corporation limited abn 50 087 646 062. Step 5 identify any cable on which work is to commence in accordance with the procedure specified in opsaf10012 pssi 12, appendix 1. Xlpe cables can be loaded continuously to a conductor temperature of 90c. Provide all control wire terminations with approved wire markers that mark the conductor with the terminal number for the wire. Best practice for the installation of medium voltage cable accessories.