LS EHV Cable System - LGCE - FTTX & CABLE

1 LS EHV CABLE System66~500kV xlpe CABLE & Accessories Connecting To The WorldSeparated from LG Group in 2003, LS CABLE started its business as a leading company of the LS Group with management philosphy Always with our customer .With the vision Your Creative Partner . we focus our core competency on strengthening our global network - China, USA, India, East Asia, Middle East and Russia etc. - and R&D sector, global talent. In 2008, acquring Superior Essex,LS CABLE is the global leading CABLE PhilosophyAt LS CABLE , we understand our responsibility and our potential inleading society to remarkable improvements in varied facets of humanlife and society. For the past many decades we successfully took thechallenge of providing our clients with solutions and support systemsto service their globe-spanning businesses. We recognize thesignificance of our contributing customer-oriented services for thebetterment of the society and its operations.

2 We believe that our responsibility should not end in mere execution ofour customers' project, but should extend towards contributing ourknowledge and expertise in returning value to their company and tothe society within which they live. Our vision is to provide world classservices and products to our clients with a sense of responsibility andaccountability towards them, their employees and ultimately thesocietyWe are determined to shoulder our responsibility of serving the societyby protecting the environment. We bear the vision of alleviating the ill-effects on the ecosystem and human life using more advancedtechnology. We are persistently in the process of putting ourphilosophy in EHV CABLE System66~500kV xlpe CABLE & Accessories Total Solution for Underground Transmission SystemLS CABLE is one of the world s leading manufacturers of extra high voltage CABLE and accessories andalso one of a few total solution providers of underground transmission System .

3 We are prominentlycapable and facilitated in researching, designing, developing, and manufacturing products andsolutions with a heritage of decades as a CABLE manufacturer and ceaseless invest on quality control. We provide power System from 66kV ~ 500kV such as xlpe cables, terminations, joints and otherrelated products as some parts of our total solution maximizing the competitive advantage in 230kVand higher voltage System . Especially, the certificate for the satisfactory completion of Type Test andPre-qualification Test by KEMA lasted for 365 days in 400kV xlpe CABLE and accessories and shows thequality of full range of our products and to Our CustomersAs an extra high voltage CABLE and accessories manufacturer and a division of LS CABLE , we never stopresearching, designing, developing, and manufacturing products with the higher level of quality toaddress the ever-changing demands in everyday life as well as in the industry.

4 Our quality control meets the most delicate requirements of international standards and the high levelof quality is recognized both by local and international clients. Our commitment to develop and deliversolutions to address our customers needs and challenges keep our technology on the cutting edgeand our know-how in the field more valuable, which our customers highly appreciate. We are looking forward to working with Design & Construction of xlpe CABLE Manufacturing Process & VCV CABLE Construction & Continuous Current xlpe Insulated Correction Factors for Various Laying Permissible Short Circuit Accessories for EHV CABLE Monitoring & Diagnosis Global & Construction of xlpe CableDesign & Construction of xlpe Cable8 ConductorConductor ScreenInsulationInsulation ScreenMetallic ScreenOuter SheathConductor The conductor consists of annealed copper or hard aluminumstranded wires and classified into three (3) major types ofconcentric, compacted circular and segmental compactedcircular.

5 The concentric is the wires wounded up concentrically, thecompacted circular conductor consists of segments woundedup and then compacted. Normally the segmental compactedcircular conductor has four (4) segments and is applied for thecross-section over than 800mm2, to prevent the increase resistance caused by skin effect. When the conductor scross-section is less than 630mm2, the compacted circular isapplied ScreenThe conductor screen consists of an extruded semi-conductingpolyethylene to minimize electrical stresses due to the strandedconfiguration of the conductor. The semi-conducting materialused for conductor screen has no deleterious effect on theconductor. Semi-conducting tape is sometimes applied as of xlpe CableThe xlpe CABLE has the construction of a conductor (copper or aluminum) insulated with the cross-linked polyethylene and thenshielded with metallic screen (corrugated and seamless aluminum or wire shield)

6 , to be covered by PVC or polyethylene for insulation material is extruded cross-linked conductor screen, the insulation and the insulation screenmentioned to the following clause are extruded simultaneouslyin one process to ensure that the screen and insulation areintimately bonded together and free from all possibilities ofvoids between extrusion process is carried out under strictly controlledatmospheric thickness of the insulation layer is the maximum valuefigured out from the design of the impulse voltage and conventional cross-linking process by saturated steam hasfrequently caused deterioration of the electrical characteristicsof the insulation as treeing phenomena arose when put to usefor long time. But the new process by N2gas has enabled toprotect the electrical characteristics from being deteriorated andto lessen the thickness of the insulation and accordingly thecable s outer diameter ScreenThe insulation screen is provided over the insulation byextruding the semi-conducting compound concentrically andcircularly to minimize the possibility of ionization on the outersurface of the ScreenThe metallic screen consists of the wire shield, the corrugatedaluminum sheath or the lead sheath.

7 The corrugated aluminumsheath and the lead sheath is also adopted where the surfaceof duct is poor and where moisture is SheathTo protect the metallic sheath from electrical or chemicalcorrosion, it is covered by PE or Sheath Cable4. Insulation Screen5. Semi-Conducting Tape6. Corrugated & SeamlessAluminum Sheath7. PE or PVC Outer Sheath1. Conductor2. Conductor Screen3. xlpe Insulation3. xlpe Insulation5. Semi-Conducting Tape4. Insulation Screen6. Lead Sheath7. PE or PVC Outer Sheath1. Conductor2. Conductor ScreenCorrugated Aluminum Sheath Cable4. Insulation Screen5. Semi-Conducting Tape6. Copper WireScreen7. Aluminum Laminated Tape1. Conductor8. PE or PVC Outer Sheath2. Conductor Screen3. xlpe Insulation4. Insulation Screen5. Semi-Conducting Tape6. Copper WireScreen7. Copper LaminatedTape1. Conductor8. PE or PVC Outer Sheath2. Conductor Screen3.

8 xlpe InsulationWire Shield CableCopper Laminated CableDesign & Construction of xlpe Cable9 CorrugatedAl SheathWireShieldLeadSheathStrandingSegme ntStrandingTapingInsulationDegassingComp actCircularSegmentalCompactTapingOuterSh eathTestingShippingConductorRip CordPaperSemi Conducting TapeSemi Conducting TapeInsulationOuter LayerInner layerCompoundPVC, PELeadCopper wireAl BilletDrawingManufacturing Process & VCV Line10 The System adopted for insulation of the xlpe CABLE is VCV and N2gas isused for cross linking, and the line is extruded in a vertical type. Theoutstanding characteristics of the xlpe CABLE manufactured in application ofthis System are : 1. The insulation has no eccentricity. 2. The cross-linking by use of N2gas guarantees excellent electricalcharacteristics of the insulation. 3. The simultaneous extrusion of the inner and outer semi-conducting layersand the insulation prevents treeing and other irregularities.

9 4. Uniformity of quality is maintained of all products as the manufacturingprocesses are controlled by Process & VCV LineManufacturing Process & VCV Line11 Extrusion The conductor screen, the insulation and the insulation screen are simultaneouslyextruded with the compounds supplied from the clean and Cooling The corss-linking takes place in curing zone of A by circulating N2gas and theinsulation is formed into core through precooling zone of B and cooling zone of Up The CABLE comes to be wound up again aroundthe drum to go into the next Off The conductor wound up aroundthe drum is set at pay off to run tometering Construction & Continuous Current Ratings12 The continuous current capacity is calculated in accordance with IEC Conditions1) Ground Temperature : 252) Depth of Laying : ) Soil Thermal Resistivity : ) Ambient Temperature.

10 405) Max. Conductor Temperature : 906) CABLE Formation : Flat (S=2D) S : Distance between cables / D : CABLE diameter7) Frequency : 50Hz8) Load factor : 100%Maximum Permissible Conductor Temperature1) Normal OperationNormal operation is meant to be maintained through out a given period oftime everyday or continuously, without affecting the ) Emergency LoadEmergency load is meant to be maintained for a short time under thecondition of System breakdown or under the state of excessively loadedoperation, without causing a ) Short Circuit Short circuit is meant to cause no defect of the CABLE when an irregularcurrent, flows for short time due to shorting or OperationEmergency OperationShort Construction & Continuous Current RatingsXLPE Insulated Insulated ( ) kV with Aluminum 36/66 ( ) kV with Lead 36/66 ( ) kV with Copper Wire 64/110 (123) kV with Aluminum 64/110 (123) kV with Lead 64/110 (123) kV with Copper Wire 76/132 (145) kV with Aluminum 76/132 (145) kV with Lead 76/132 (145)