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 The kind of copper and copper alloysW(Cu)W(Ag)W(Mg)W(Sn)W(Bi)W(O)W(Pb)W(P)Other impurities≤Copper99.90---≤0.005≤0.0300-0.03Kufil alloyOver- measure0.08-0.12--≤0.005≤0.0300≤0.0050-0.03[w(Mg)=0.2%]Magnesium copper alloy Over- measure-0.1-0.3----≤0.010.10[w(Mg)=0.5%]Magnesium copper alloy Over- measure -0.4-0.7---≤0.010.10Copper tin alloy Over- measure--0.15-0.55---0.10Point ,In kinds of copper, the copper content is 99.95% for oxygen-free copper, the oxygen content is≤0.0020% Table 1 the shape of section and disposition for alloy’s distinguished groove CTSH type of distinguished groove CTA,CTAH type of distinguished groove CTM,CTMH type of distinguished groove The enlarged drawing for distinguished groove A- section radius(height) C- the width of head D- space between bottom of slot H- above bevel R- radius of corner B- width of section K- height of head E- space between tin of slot G- below bevel Point copper line of contact (CT type) without distinguished groove. Table 2 specification, dimension, angles and reference unit quality. Specification(nominal section area mm.mm)mm dimension and tolerance mmquality of reference units. kg/kmA±1%B±2%C±2%D±4%EKRG H ±1°8510.8010.769.407.246.804.600.4027° 51°76911012.3412.349.737.246.804.470.4027° 51°99212012.9012.909.767.246.804.350.4027° 51°108215014.4014.409.717.246.804.000.4027° 51°1350The products made by old technology (10 times enlarged) Table 3 Resistivity, electrical conductivity Style of contact line(no specification)Resistivity (20°C),no more than Ω mm.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 0.02778Ωmm.mm/m and 62.1%IACS.