tailieunhanh - HIGH VOLTAGE XLPE CABLE SYSTEMS Technical User Guide phần 3

Single-core XLPE Cáp điện áp cao với vỏ nhôm dát mỏng Cáp bố trí quá trình sản xuất Các lớp bán dẫn bên trong, đồng dẫn, sợi, mặt cắt cách điện XLPE chính và sqmm 1000 bên ngoài và ở trên phân đoạn, lớp bán dẫn tùy chọn sẽ được đẩy lên trong một hoạt động với nước rào cản duy nhất theo chiều dọc. | 132 76 kV XLPE Cable BRUGG CABLES Well connected. Single-core XLPE High Voltage Cable with Aluminium laminated sheath Cable layout Copper conductor stranded cross-sections of 1000 sqmm and above segmented optionally with longitudinal water barrier Inner semiconductive layer firmly bonded to the XLPE insulation XLPE main insulation cross-linked Outer semiconductive layer firmly bonded to the XLPE insulation Copper wire screen with semi-conductive swelling tapes as longitudinal water barrier Aluminium lamninated sheath HDPE oversheath halogen-free as mechanical protection optionally with semi-conductive and or flame-retardant layer Production process The inner semiconductive layer the XLPE main insulation and the outer semiconductive layer are extruded in a single operation. Special features of metallic sheath Copper wire screen as short-circuit current carrying component Aluminium foil overlapped 0 25 mm thick as radial diffusion barrier Low weight low cost internationally proven design Applicable standards IEC 60840 2004-04 AEIC CS7-93 ANSI ICEA S-108-720-2004 XDRCU-ALT 132 76 kV Technical data Copper conductor cross-section Outer diameter approx. Cable weight appox. Capacitance Impedance 90 C 50 Hz Surge impedance Min. bending radius Max. pulling force mm kcmil mm kg m pF km Q km Q mm kN 240 500 73 6 0 13 0 26 59 1500 14 300 600 76 7 0 14 0 25 49 1550 18 400 800 77 8 0 16 0 23 49 1600 24 500 1000 83 9 0 16 0 22 49 1700 30 630 1250 86 10 0 18 0 22 49 1750 38 800 1600 87 12 0 24 0 20 42 1800 48 1000 2000 91 14 0 27 0 19 39 1850 60 1200 2400 95 15 0 30 0 19 37 1900 72 1400 2750 96 21 0 34 0 18 34 1950 84 1600 3200 99 22 0 35 0 18 33 2000 96 2000 4000 104 27 0 39 0 17 31 2100 120 2500 5000 111 33 0 43 0 17 29 2250 150 Ampacity Load Factor Buried in soil Buried in soil Buried in soil Buried in soil In free air In free air mm2 kcmil A A A A A A 240 500 607 513 657 569 631 698 300 600 687 579 745 642 721 799 400 800 789 660 861 737 837 936 500 1000 896 .