The factory extension under construction is more than 20,000sqm already. 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. Construction details of single core xlpe insulated armoured pvc sheath underground cable. This includes the 11kv triplex formation cable for ukpn. Xlpeswapvc 4core bs 5467 600 v xlpe insulated steel wire armoured and pvc sheathed cable with copper conductors. These limits should not be used for cables subjected to pulling tensions during installation. Rohs compliance has been tested and confirmed by the cable lab as meeting the requirements of the bsi rohs trusted kitemark. Xlpe swapvc 4core bs 5467 600 v xlpe insulated steel wire armoured and pvc sheathed cable with copper conductors. Cable type code power and control cable insulation andor sheath materials insulation, inner or outer sheath of polyvinylchloride pvc y insulation made of cross linked polyethylene xlpe 2x inner or outer sheath made of zero halogen, flameretardant compound lszh h metal sheath sheath made of lead k armor galvanized round steel wires r. High voltage xlpe cable systems technical user guide. Copper building wire 10 specifications construction rw90 cable 600v xlpe csa c22. Low tension cables, lt power cables, low voltage cable. The fastest growing company in the indian cable industry with. What is the difference between the xlpe and pvc insulated.
Xlpe cable is used to supply power to all types of indoor and outdoor mobile and portable machinery in wet, oily, all weather conditions. Modern xlpe cables consist of a solid cable core, a metallic sheath and a nonmetallic outer covering. Flame retardant certification cable protective layer is commonly used raw materials are good insulation and cheap pvc polyvinyl chloride, flame retardant certification requires not only a special fire protection cable, but also to use special insulating materials to. Outdoor energy cables, lv underground power cables, service cables, cv 0. Highdensity crosslinked polyethylene xlpe poly processing. A cable may have one or more conductor depending upon the type of service. This and other crosslinked synthetic materials, of which epr ethylene propylene rubber is a notable example, are being increasingly used as cable insulants for a wide range of voltages.
Values of k for copper and aluminium conductors and pvc and xlpe. It is used on building and construction sites, in workshops, mines, dockyards, opencast mining, road works and factories. The figure shows a circular compacted stranded copper or aluminium conductor, xlpe insulated, with copper tape screened and covered with extruded pvc bedding, aluminium wire armored and pvc outer sheath. Pdf interfacial improvement of xlpe cable insulation at. Xlpe insulated copper wire screened cable 762 145 kv to iec60840 and. Technical specification for 112233 kv nominal voltage ht xlpe power cables 1. One company connecting the world general cable powerful presence products performance people with 14,000 associates on six continents, general cable is a global leader in the development, design, manufacture. Year m v c a b l e s i n s t a l l e d i n t h e u s m i l l i o n s o f f t 1964 1970 1976 1982 1988 1994.
Lead sheath over cable construction protects cable core. What is the difference between the xlpe and pvc insulated cable. 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. Position on cable run for one 5000 foot reel of 50,000 foot run 200. Cable construction the construction of the cable has three basic parts. Pvc insulated power cables and xlpe insulated power cables. A typical construction for a medium voltage cable consists of an aluminum conductor covered by a screening layer, then by a polyethylene or ethylene propylene rubber insulation followed by a further screening layer.
Construction 5 nominal and highest cable voltages application range of use cables in accordance with iec 605021 are intended for fixed installation. Prysmian has a full suite of xlpe cables, including single cores and multicores in both class 2 and flexible class 5, for entire construction market. Instrumentation cable is available in individually shielded pairs or triads with an overall shield construction. This page will help you to understand what is the difference between the xlpe and pvc insulated cables. Cable type choose the highest value of all relevant construction features during. Xlpe cables are tested to ensure high reliability in performance. This cable preferably used for supplying main power as a control cable. Highdensity crosslinked polyethylene, or xlpe, is a thermoset resin that is specifically designed for critical applications like chemical storage. For underground distribution at 11kv, the xlpe cable does not compete economically with the paperinsulated aluminiumsheathed cable, but work is in progress on standardizing and assessing xlpe cable design, including trial. High voltage xlpe cable systems techincal user guide brugg cables page 3 1. 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. Unarmoured concentric conductor iec 605021 application power cables for energy supply used in industry, distribution boards and power stations, for rated voltage up to 0. Polyethylene pest7,flame retardant polyvinyl chloride frpvc in accordance with iec 603323. Standards the cable is manufactured and tested according to bs 5467.
General information on high voltage cable systems 1. Power cables are mainly used for power transmission and distribution purpose. The makeup of individual cables varies according to application. Current ratings the current ratings are thoroughly presented in era 6930 part v. Xlpe cable has a high chemical resistance and moisture resistance. For mains, submains and subcircuits unenclosed, in conduit, buried direct or in underground ducts for buildings and industrial plants where not subject to mechanical damage. Primarily used for control applications, instrumentation cable is recommended where optimal noise rejection is required. The first lot offered shall not be less than 10% of ordered quantity of each size of lt xlpe armored cable.
The focus is on thermoplastic and thermosetting insulated cables, however the construction of other cables are similar. It can also be used for industrial installation such as in cable trench, cable duct, switchgear and in power stations. Copper high conductivity, low resistivity, good ductility, large proportion. The group is a global player in the infrastructure, industry, building and local. One of the major causes of failures in xlpe insulated cables is watertreeing. Watertree measurement on xlpe cable requires an ida 200 insulation diagnostics unit with the ida hvu high voltage unit option. Jan, 2016 when we need to choose a kind of low voltage 0. For low voltage cable network of normal operation, it is advisable of a voltage drop. Dec 19, 2018 when making a decision between different kinds of cables for a project, you may be faced with the choice between installing pvc insulated cable and xlpe cable prysmian standard building cables are insulated and sheathed with polyvinyl chloride, better known as pvc, as its a very effective general material for electrical and physical protection. As medium voltage cable specialists, our experts in the cable lab can advise on the most appropriate cable for your application and the correlating accessories for the installation environment. All dimensions are nominal and are subject to normal manufacturing tolerance. The process of crosslinking or vulcanisation consists of producing chemical bonds at intervals between the long molecular chains to give a ladder effect which prevents slippage between molecules.
The quality of insulation should be good and insulation should not be deteriorated when exposed to the climatic conditions. From people, to places, to projects, saudi cable company scc is dedicated to providing leading energy jeddah cable catalogue pdf share the knownledge. Prysmian manufactures comprehensive range of xlpe crosslinked polyethylene cables. In performing a general condition assessment on xlpe cable, the. Inner conductor shielding, xlpe insulation and outer core shielding shall be extruded. Low voltage cables come in a variety of sizes, materials, and types, each particularly adapted to its uses. It is an assembly of one or more individually insulated electrical conductors, usually held together with an. One sample from the 1st lot of lt xlpe armored cable of. General condition assessment of xlpe and pilc cables the ef. During the xlpe manufacturing process, a catalyst peroxide is built into the resin, which creates a free radical.
An interfacial diffusion method was devised to reduce insulation thickness by improving the interfacial properties of xlpe cable insulation. The cable core consists of the conductor, wrapped with. Rohs trusted kitemark km 634267 bs 6622 xlpe mdpe 6. What is the difference between pvc and xlpe the structural elements of wire and cable products can be generally divided into four main structural components of wire, insulation, shielding, and sheathing. Technical specification for xlpe insulated underground residential.
Cable solutions to ensure the reliability of your energy network with energy as the basis of its development, nexans, the worldwide leader in the cable industry, offers an extensive range of cables and cabling systems. Please refer to the pdf specification sheets for further information. Load losses in xlpe cables are primarily due to the ohmic losses in the conductor and the metallic screen. As medium voltage cable specialists, our experts in the cable lab can advise on the most appropriate cable for your application and. Xlpe is the recognized abbreviation for crosslinked polyethylene. The coefficient of expansion of the insulation layer is typically ten times greater than that of the aluminum and when the cable. Crosslinked polyethylene, commonly abbreviated pex, xpe or xlpe, is a form of polyethylene with crosslinks. This cable meets the requirements of the low voltage directive 201435eu and the rohs directive 201165eu. The concentric conductor can be used as neutral protectiveearthed conductor, suitable for fixed installations indoor or outdoor. Conductors are circular and made of solid or stranded alu. For power cables, according to different insulating materials, lowvoltage power cables are mainly the following two kinds. Xlpe power cable armoured for distribution network. What is the difference between pvc and xlpe sanheng cable.
Construction of underground cables electrical engineering. The cost of energy losses can be reduced by using larger conductor. Cable designation cu xlpe cu wire conductor pvc f flexible construction. Cable construction introduction this article gives a brief exposition on the construction of typical low voltage, medium high voltage and instrumentation cables.
Industrial and construction cables product reference guide september 2016. Jeddah cables company was established in 1989 as a startup plant in low saudi cable company. The free radical generates the crosslinking of the polymer chain, so the tank. Watertree deterioration process is very slow 550 years and can vary from cable to cable, among different designs, and also among individual cables of same design. Xlpe cable can be used at high temperatures and high voltage applications. Cable design cable characteristics construction xlpe cables 0. Apr 07, 2016 a typical construction for a medium voltage cable consists of an aluminum conductor covered by a screening layer, then by a polyethylene or ethylene propylene rubber insulation followed by a further screening layer. Construction conductor class 2 stranded copper conductor conductor screen semiconductive xlpe crosslinked polyethylene insulation. Lead sheath over cable construction protects cable core benefit. Construction conductor class 2 stranded copper conductor conductor screen. Abb has since then supplied more than 8,800 km of xlpe cables above. Power cable catalogue aai, a powerflo technologies company. Bare conductor acsr have such good characteristics as simple structure, convenient. General condition assessment of xlpe and pilc cables.