high speed railway contact wire

Every kinds of products which is made by copper and copper alloys in our company can be satisfied with the demand in TB/T2829-2005.Sometimes even pass through the demand. Also we can provide the products used in high speed railway which has the time speed about 350km.The main technical parameters are in the tables as follows. We can discuss with our customers and produce the products outside the standard. Table 1: chemical base of copper alloy Material numberW(Cu)W(Mg)other impurities no more thanSingle wire resistivity (20°C)no more than Ω sq mm/mSingle wire electrical conductivity(20°C)no less than %IACST99.95-0.050.0177797TMover-measure0.1-0.30.300.0224077TMHover-measure0.4-0.70.300.0277862TMTover-measure0.1-0.30.300.0224077 Table 2 : kinds of special structure for stranded wire itemsectional drawingstructure1-1 x 72-1 x 193-1 x 374-7 x 75-(3+9) x 7 Point: JTMT style is (1 x 37) structure, is a new structure without in iron standard, technical standard is more than the demand of iron standard. It is used in the high speed railway which has the time speed above 350km, and other special railway. Table 4: Resistivity, electrical conductivity Style of contact line(no specification)Resistivity (20°C),no more than Ω sq mm/mElectrical conductivity (20°C),no less than %IACSCT0.0177797CTA,CTAH0.0177797CTM0.0224077CTS0.0239572CTMH0.0257367CTMT0.0265365Points: The resistivity and electrical conductivity of CTMH and CTMT style contact line is better than the iron and EU standard 0.02778Ωsq mm/m and 62.1%IACS.