CABLES AND WIRES - Novkabel

PROTECTIVE ROPES FOR TRANSMISSION LINESCompressed AlMgSi ropes type A2Standard: IEC 61089, IEC 61232IEC 104, IEC 888CONSTRUCTIONConductor: core of alumoveld or of galvanized steel, outer layer ofAlMgSi alloy, type 2.Material characteristics:AlMgSi alloy according to EN 1715-2, EN 50183, IEC 104Tensile strength, min 295 N/mm 2Specific electric resistance, max 32,53 Ωmm 2 /kmALUMOVELD class 20SA according to IEC 61232Specific electric resistance, max 84,80 Ωmm 2 /kmGalvanized standard steel according to IEC 888Specific electric resistance, max 191,57 Ωmm 2 /kmAPPLICATIONRopes are used to protect transmission lines from lightning and shortcircuit. Recommended for use in coastal areas, because it is resistantto salt fog, and in industrial areas where it is exposed to aggressiveatmospheric chemicals.CONSTRUCTION DATA forconductor 43.7-A2/SA1A-12/7; construction 7x2,10 SA1A + 12x2,10A2Designation Characteristic ValueE Modulus of elasticity 9568 (daN/mm 2 )α ti Thermal coefficient of linear expansion 16,76x10 -6 (1/°C)S Cross section 65,81 (mm 2 )d Diameter 10,50 (mm)C Specific heat capacity 0,670959 (kJ/kg°C)α tk Temperature coefficient of electrical resistance at 20°C 0,0036 (1/°C)t kr.tr. Short (1 s) permissible temperature 160 (°C)I ks Short permissible current at 1 s 5,953 (kA)I tr Persistent permissible current at 80 0 C 222 (A)P rač Calculated breaking strength 41,36 (KN)m sam Longitudinal mass with fat 279,5 (kg/km)T k Dropping point fat, min 130 (°C)187All layers are greased, except layer.conductor 36.5-A2/S1A-12/7; construction 7x2,10 S1A + 12x2,10A2Designation Characteristic ValueE Modulus of elasticity 10232 (daN/mm 2 )α ti Thermal coefficient of linear expansion 15,55x10 -6 (1/°C)S p Cross section outer layer 41,56 (mm 2 )S p Cross section core 24,25 (mm 2 )d Diameter 10,50 (mm)C Specific heat capacity 0,6230 (kJ/kg°C)α tk Temperature coefficient electrical resistance at 20 °C 0,00418 (1/°C)t kr.tr. Short (1 s) permissible temperature 160 (°C)P rač Calculated breaking strength 42,95 (KN)m sam Longitudinal mass with fat 310,4 (kg/km)T k Dropping point fat, min 130 (°C)All layers are greased, except outer.