XLPE Insulated Power Cables - Cable UniHome …

1 xlpe Insulated Power CablesUniversal Cable (M) Berhad was incorporated in 1967 as a private company TVMSV XS MXW QIVKIV [MXL 0 IEHIV 'EFPI -RHYWXV] &IVLEH MR XS JSVQ XLI WMRKPI PEVKIWX [MVI ERH GEFPI QERYJEGXYVIV MR XLI VIKMSR %W TEVX SJ PIEHIV 9 RMZIVWEP ,SPHMRKW E TYFPMG PMWXIH GSQTER] [MXL GYVVIRX GETMXEPMWEXMSR MR I\GIWW SJ 61 billion, universal Cable shares the group s extensive network for synergistic integration in varied areas of Cable Cable , together with its subsidiary companies, cover a broad WTIGXVYQ SJ TVSHYGXW [LMGL MRGPYHIW <04) ERH 4:' TS[IV ERH GSRXVSP GEFPIW telecommunication and instrument Cables , rubber Insulated Cables and electrical grade aluminium rods.]]]

2 Continued capital investment has enabled universal Cable XS IWXEFPMWL WXEXI SJ XLI EVX JEGMPMXMIW ERH YXMPM^I XLI PEXIWX GEFPI QERYJEGXYVMRK XIGLRSPSKMIW JSV UYEPMX] TVSHYGXW 9 RMZIVWEP 'EFPI [MPP GSRXMRYI XS TVSZMHI MRRSZEXMZI MQTVSZIQIRXW ERH VI RIQIRXW XLVSYKL GVMXMGEP WIPIGXMSR SJ VE[ materials to produce better and more costeffective products for its a strong emphasis on customer satisfaction, universal Cable and its subsidiaries are constantly expanding their product range to enhance its position as a major supplier of Power and telecommunication Cables to local industries and increase its prominence catalogue serves as a guide to UCMB s manufacturing processess and WXERHEVHW MR XLI QERYJEGXYVI SJ <04)]

3 GEFPIW 7 CONTENTSPageINTRODUCTION1 WHAT IS xlpe ?8 CHARACTERISTICS AND ADVANTAGES OF XLPE9 MANUFACTURING PROCESS OF xlpe CABLES10 STRUCTURAL DESIGN AND PERFORMANCE OF xlpe CABLES11 PROCESS OF xlpe CABLES12 TESTING PROCEDURES FOR xlpe CABLES13-14 Cable STRUCTURAL DESCRIPTION AND CONSTRUCTION DATA <04) MRWYPEXIH 9 REVQSYVIH 4:' 7 LIEXLIH 'EFPIW O:.. <04) -RWYPEXIH %VQSYVIH 4:' 7 LIEXLIH 'EFPIW O:..19-22 <04) -RWYPEXIH 4) -RRIV 7 LIEXL 7 GVIIRIH %RH 4) 7 LIEXLIH 9 RHIVKVSYRH 'EFPIW O:.. <04) -RWYPEXIH %VQSYVIH 4:' 7 LIEXLIH 'EFPIW O:..25-26 7 MRKPI 'SVI <04) -RWYPEXIH 9 REVQSYVIH 4:' 7 LIEXLIH 'EFPI *SV :SPXEKIW O: 9T 8S %RH -RGPYHMRK O.

4 27-32 7 MRKPI 'SVI <04) -RWYPEXIH %VQSYVIH 4:' 7 LIEXLIH 'EFPI *SV :SPXEKIW O: 9T 8S %RH -RGPYHMRK O:..33-36 7 MRKPI 'SVI <04) -RWYPEXIH 9 REVQSYVIH 4) -RRIV %RH 3 YXIV 7 LIEXL 'EFPI *SV :SPXEKIW O: %RH O:.. 8 LVII 'SVI <04) -RWYPEXIH 9 REVQSYVIH 4:' 7 LIEXLIH 'EFPI *SV :SPXEKIW O: 9T 8S %RH -RGPYHMRK O:.. 8 LVII 'SVI <04) -RWYPEXIH %VQSYVIH 4:' 7 LIEXLIH 'EFPI *SV :SPXEKIW O: 9T 8S %RH -RGPYHMRK O:.. 8 LVII 'SVI <04) -RWYPEXIH 9 REVQSYVIH 4) -RRIV %RH 3 YXIV 7 LIEXL 'EFPI *SV :SPXEKIW O:.. 7 MRKPI 'SVI <04) -RWYPEXIH 9 REVQSYVIH 4) 7 LIEXLIH 'EFPI *SV :SPXEKI O:.. APPENDIX : TECHNICAL DATAC urrent Carrying )PIGXVMGEP ' &IRHMRK 6 EHMYW 7 MHI ;EPP 'STTIV 7 GVIIR *SV 7 MRKPI 'SVI 9 REVQSYVIH 'EFPIW *SV :SPXEKI O: 9T 8S O.

5 62 4 IVQMWWMFPI 1E\MQYQ 4 YPPMRK *SVGI %RH 6 EHMEP 1 IXVMG 'SRHYGXSV 7M^IW %RH 6 IWMWXERGIW EX ' .. 8 IQTIVEXYVI 'SVVIGXMSR *EGXSVW *SV 'SRHYGXSV Current for referred to .. WHAT IS xlpe ?<04) MW ER EFFVIZMEXIH HIWMKREXMSR SJ GVSWW PMROIH polyethylene . Polyethylene has a linear molecular WXVYGXYVI EW WLS[R MR % 1 SPIGYPIW SJ TSP]IXL]PIRI RSX chemically bonded as shown in B are easily deformed EX LMKL XIQTIVEXYVI [LMPI <04) QSPIGYPIW FSRHIH in a three dimensional network as shown in C and D, have strong resistance to deformation even at high linked polyethylene is produced from polyethylene under high pressure with organic peroxides as additives.

6 The application of heat and pressure is used to effect the cross linking. This causes the individual molecular chains to link with one another which in turn causes the material to change from a thermoplastic to an elastic MQTSVXERX EHZERXEKI SJ <04) EW MRWYPEXMSR JSV QIHMYQ and high voltage Cables is their low dielectric loss. The dielectric loss factor is about one decimal Power lower than that of paper Insulated Cables and about two decimal powers lower than that of PVC- Insulated the dielectric constant is also more favourable the mutual GETEGMXERGI SJ <04) GEFPIW MW EPWS PS[IV XLYW VIHYGMRK XLI charging currents and earth-leakage currents in networks without the rigid star-point )8,=0)2)HHHHHHHHHHCCCCCCCCCD<04)9 CHARACTERISTICS AND ADVANTAGES OF XLPEE xcellent Electrical and Physical Properties<04)]

7 GEFPI GSRWXMXYXIW XLI FIWX GEFPI JSV XVERWQMWWMSR ERH HMWXVMFYXMSR PMRIW FIGEYWI SJ MXW I\GIPPIRX IPIGXVMGEP ERH TL]WMGEP of Carrying Large Currents8LI I\GIPPIRX VIWMWXERGI XS XLIVQEP HIJSVQEXMSR ERH XLI I\GIPPIRX EKMRK TVSTIVX] SJ <04) GEFPI TIVQMX MX XS GEVV] PEVKI GYVVIRX under normal (90 oC), emergency (130 oC) or short circuit (250 oC) of Installation<04) GEFPI [MXLWXERHW WQEPPIV VEHMYW FIRHMRK ERH MW PMKLXIV MR [IMKLX EPPS[MRK JSV IEW] ERH VIPMEFPI MRWXEPPEXMSR *YVXLIVQSVI XLI WTPMGMRK ERH XIVQMREXMRK QIXLSHW JSV <04) GEFPI EVI WMQTPIV MR GSQTEVMWSR [MXL SXLIV OMRHW SJ GEFPIW Free from Height Limitation and Maintenance<04) GEFPIW GER FI MRWXEPPIH ER][LIVI [MXLSYX WTIGMEP GSRWMHIVEXMSR SJ XLI VSYXI TVS PI LIMKLX PMQMXEXMSRW WMRGI MX HSIW RSX GSRXEMR SMP ERH XLYW MW JVII JVSQ JEMPYVIW HYI XS SMP QMKVEXMSR MR SMP PPIH GEFPIW No Metallic Sheath Required<04) GEFPI HSIW RSX KIRIVEPP] HIQERH E QIXEPPMG WLIEXL 8 LYW MX MW JVII JVSQ XLI JEMPYVIW TIGYPMEV XS QIXEPPMG WLIEXLIH GEFPIW WYGL EW corrosion and PROCESS OF xlpe Cables -R XLI QERYJEGXYVI SJ QIHMYQ ERH LMKL ZSPXEKI <04)

8 GEFPI SYV TPERX YWIW XLI PEXIWX XIGLRSPSK] EZEMPEFPI MR XLI IPH F] YWMRK ER integrated high performance extrusion line which consists of a triple-layer crosshead and a water-free Completely Dry Curing and 'SSPMRK '('' KEW ZYPGERM^MRK TVSGIWW 8 LMW X]TI SJ I\XVYWMSR PMRI QMRMQMWIW XLI VMWO SJ MRXVSHYGMRK I\XIVREP GSRXEQMRERXW ERH TVSHYGIW LMKL UYEPMX] <04) GEFPI The conductor is paid off continuously through a metering capstan (which is the line speed master point), a triple extruder GVSWWLIEH E ZYPGERM^MRK XYFI ER IGGIRXVMGMX] QSRMXSVMRK YRMX ERH LEYP SJJ GEXIVTMPPEVW ERH REPP] XEOIR YT Using a group of three extruders, the triple crosshead allows simultaneous extrusion of the Cable insulation and two semiconducting screens with a high degree of smoothness and no voids or introduction of extrernal contaminants.

9 Precise and stable temperatures EX XLI GVSWWLIEH EVI EGLMIZIH F] YWMRK QYPXMTPI ^SRI XIQTIVEXYVI GSRXVSPW -R XLI [EXIV JVII '('' KEW ZYPGERM^MRK TVSGIWW XLI XVMTPI I\XVYHIH GEFPI GSVI MW GYVIH MR ER MRIVX TVIWWYVMWIH KEW XYFI ERH LIEXIH XS XLI VIUYMVIH XIQTIVEXYVI JSV QEXIVMEP GVSWW PMROMRK &] ZEV]MRK XLI GYVMRK XIQTIVEXYVI ERH XMQI HMJJIVIRX GYVI TIVGIRXEKIW GER FI EGLMIZIH EW TIV GYWXSQIV VIUYMVIQIRXW The various functions of our integrated extrusion line such as line speed and curing tube temperatures synchronisation are QSRMXSVIH ERH GSRXVSPPIH ZME XLI TVSGIWW EYXSQEXMSR GSQTYXIVW XS IRWYVI TVSHYGXMSR SJ UYEPMX] VEQTW 'EPGYPEXIH VEQT parameters can be preset on the control unit and closed circuit TV system is used to ease the running of the lines.)

10 11 STRUCTURAL DESIGN AND PERFORMANCE OF xlpe CABLES8LI HIWMKR SJ <04) GEFPIW GSRJSVQ XS MRXIVREXMSREP WXERHEVHW ERH EVI WMQMPEV XS XLSWI MR -)' ERH -)' <04) MRWYPEXIH GEFPIW JSV QIHMYQ ERH LMKL ZSPXEKIW have, in general, circular conductors and only single core construction is adopted for the latter. Conductors may be of compacted stranded aluminium or stranded copper ERH WTIGMEP GEVI MW XEOIR XS IRWYVI E WQSSXL TVS PI JVII from sharp juts that could damage the insulation due to high local electric <04) MRWYPEXIH GEFPIW SJ 1 IHMYQ :SPXEKI EVI WYTTPMIH with extruded cross-linked semi conducting screens to TVSXIGX XLI QEMR WSPMH <04) MRWYPEXMSR 8LI GSRHYGXSV WGVIIR PPW XLI MRXIVWXMGIW FIX[IIR XLI [MVIW ERH TVSZMHIW a smooth circular envelope around the conductor.]]