Nexans olex has proven its expertise and commitment to quality and service in fulfilling contracts in many new zealand and international markets. Production and sales of special industrial cable like shipboard cables, offshore cables, rolling stock cables, nuclear power plant cables, aerospace cables and port infrastructure cables. Xlpe, is used as insulation material in modern energy cables. It is an assembly of one or more individually insulated electrical conductors, usually held together with an overall sheath. Nexans completed the acquisition of power cable bussiness of. Investigation life time model of 22 kv xlpe cable for. Xlpe insulated power cable,xlpe power cable,xlpe armoured. Xlpe insulated power cables this catalogue serves as a guide to ucmbs manufacturing processess and wxerhevhw mr xli qeryjegxyvi sj merge of prysmian and draka, is the world leader in the energy and telecom cables and systems industry. If if water or water vapor exists in the ins ulation layer, water trees can start to form and. Use of screen in hv cables use of armor for ground continuity and mechanical protection special and single core cables voltage rating stress distribution in single core and multicore power cables electrical breakdown of insulating materials hv cables using xlpe insulation treeing in xlpe and need for end sealing.
The cables shall be designed and manufactured in accordance with section 4 xlpe insulated 0. Xlpe insulation is prone to the physicalc hemical phenomenon of water treeing. Draka catalog scribd draka catalog download as pdf file. The proposed transaction concerns the acquisition by nkt of abb groups. Since the dielectric constant is also more favourable, the mutual capacitance of xlpe cables is also lower, thus reducing the charging currents and earthleakage currents in networks without the rigid starpoint earthing. Pdf on oct 22, 2017, emna khouildi published diagnosis of xlpe power cable find, read and cite all the research you need on. Xlpe cables the design of xlpe cables conform to international standards and are similar to those in iec 60502 and iec 60840 xlpe insulated cables for medium and high voltages have, in general, circular conductors and only single core construction is adopted for the latter.
The lv cables were bs5467 type single core xlpe insulated power cables with aluminium wire armour and stranded copper conductors, 300500sqmm. Our products are widely applied in electrical power system, petrochemical. Power cables 33 xlpe cables have a larger overall diameter for the same. A wide variety of power cable specification options are available to you, such as high pressure. Complementing this range is a wide selection of power and datacommunications cables manufactured by other nexans factories around the world. An example is the tree retardant compound used in xlpe to slow the growth of water trees trxlpe. Electrical distribution of this kind normally takes place via underground cables or overhead lines. Cable manufacturer prysmian group, created through the merge of prysmian and draka, is the world leader in the energy and telecom cables and systems industry. From people, to places, to projects, saudi cable company scc is dedicated to providing leading energy products catalogue elsewedy electric.
Ageing deterioration of xlpe insulating material can not be avoided because it is made of polymeric material. Xlpe power cable china power cable manufacture what is the difference between pvc and xlpe cable. Power cable technology provides a precise understanding of the design, manufacture, installation, and testing of a range of electric power cablesfrom lowvoltage, 1,0001,100v cables to extrahighvoltage, 400kv cableswith reference to future trends in the industry. Conductors may be of compacted stranded aluminium or stranded. Xlpe cables xlpe insulated heavy duty cables miracle cables started manufacturing in 2010, these cables have overcome the limitations of pvc insulated cables such as thermal degradation, poor moisture resistance and thermoplastic nature. Additionally, crosslinking appears to play a role in the water. A total of 22 new 11kv415v high voltage transformers manufactured by wilson power solutions were installed by iss and all associated new low voltage lv power supply cables. Application these cables are used for electricity supply in low voltage installation system, they are suitable for installation in indoors and outdoors, in cable ducts, underground, in power and switching stations, local energy distributions, industrial plants, where there is no risk of mechanical damage. Pdf on jun 1, 2015, ali alizadeh and others published cables find, read and cite all the research you need on researchgate. Conductors may be of compacted stranded aluminium or stranded copper and. If the cable is exposed to direct sun light protective covering or cable with black outer sheath is recommended.
Standard power cables xlpe insulated, pvc sheathed, low. Although initial risk assessments would include consideration of electrical water damage, such as. Power cables are commonly used in urban underground power grids, power station leadout lines, power supply within industrial and overtheriver transmission lines. Xlpe, crosslinked polyethylene, has stable intermolecular bonds between polyethylene particles created by thermochemical action, due to the presence of organic peroxide. Compared with pvc insulated power cable, xlpe power cable boasts not only characteristics of. After decades of development, the company can mainly manufacture six categories of cables till present, including xlpe insulated power cable up to 35kv, pvc power cable, control cable, electrical equipment application wire and cable and so on, involving more than 400 models and 20000 kinds of specifications. Crosslinked polyethylene, commonly abbreviated pex, xpe or xlpe, is a form of polyethylene with crosslinks. Of xlpe cable the design of xlpe cables conform to international standards and are similar to those in iec 60502 and iec 60840. Cross linked polyethylene insulated power cable xlpe cable, no necessity of metallic sheath, and it is much flexible and light compared with cpic. The assembly is used for transmission and distribution of electrical power.
Power cable catalogue aai, a powerflo technologies company. Techniques employed in the installation of low voltage xlpe cables are similar to that employed for standard pvc insulated power cables. The insulation shield, like the conductor shield, is required. Used for power transmission and distribution line with voltage rated at 35kv and below. Technical specification for xlpe insulated underground. Power cables are used to transmit and distribute electrical energy.
Control, instrumentation and data cables are examples of these. Primarily, a heat shrink cable joint provides electrical insulation, mechanical protection and stress control for high voltage power cables integral also to the cable joint design is the requirement to prevent water ingress into the cables. The advantages of xlpe insulated cables in comparison to pvc insulated. Diagnosis of power cables by detecting, identifying and prelocating partial. Production and sales of lan cables, coaxial cables for telecommunications.
The cables can withstand high shortcircuit temperatures and the dimensional stability above 90. Xlpe insulated cable for medium and high voltages have, in general, circular conductors and only single core construction is adopted for the latter. Ii tests on power and control cables iii general information datasheets pvc insulated low voltage cables 70 c 7 yyfl, unarmoured 2, 3, 4 and 5cores 8 multicores 12 yyryfl, armoured 2, 3, 4 and 5cores 14 multicores 18 xlpe insulated low voltage cables 90 c 23 2xyfl, unarmoured, flame retardant 2, 3, 4 and 5cores 24 multicores 28. As xlpe cannot be remelted it has been considered difficult to recycle. Electrical power cables may be installed as permanent wiring within buildings, buried. During the contract period, the tenderer shall not change the manufacturer, design. Prysmian group, cable manufacturer and systems provider for cable manufacturer prysmian group, created through the merge of prysmian and draka, is the world leader in the energy and telecom cables and systems industry. Aging mechanisms and monitoring of cable insulation polymers. At its new plymouth factory, nexans olex produces a wide range of electrical power cables, ranging from building wires and control cables to power cables with rated voltages up to 35 kv. Submarine power cables power cables from abb are proven to be highly reliable. Which type of power cable is better between xlpe and ugac. Therefore, more power can be supplied by the xlpe cable than a noncrosslinked hdpe cable of the same size. Shortcircuit ratings for xlpe insulated cables with copper conductors. Yjv23 yjlv23 xlpe insulated steel tape armored pe sheathed power cable yjv32 yjlv32 xlpe insulated thin steel wire armored pvc sheathed power cable laid on riverbeds of rivers or shallow water as connecting lines across rivers or petroleumnatural gas platforms, also.
Xlpe insulated steel tape armored pvc sheathed power cable. Specialized cables, such as nuclearrated, hightemperature and firerated cables, are used in particular environments. Necessary information for designing a hv power line. Current ratings in this technical manual are based on asnzs 3008. Medium voltage alcu xlpe insulated pvc sheathed armoured. A wide variety of xlpe 24kv power cable options are available to you, such as conductor material, type, and application. Multiconductor cables comprise multiple insulated cables housed within a single jacket. For fixed installation in all areas and on open deck in ships. This paper present results of artificial ageing test of 22 kv xlpe. Power cables are mainly used for power transmission and distribution purpose. Xlpe xlpe insulated power cables federal power sdn. Electrical power cables may be installed as permanent wiring within buildings, buried in the ground and run overhead.
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