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

 

 

 

 

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 number	W(Cu)	W(Mg)	other impurities no more than	Single wire resistivity (20°C)no more than Ω sq mm/m	Single wire electrical conductivity(20°C)no less than %IACS
T	99.95	-	0.05	0.01777	97
TM	over-measure	0.1-0.3	0.30	0.02240	77
TMH	over-measure	0.4-0.7	0.30	0.02778	62
TMT	over-measure	0.1-0.3	0.30	0.02240	77

       

Table 2 : kinds of special structure for stranded wire

item	sectional drawing	structure
1	-	1 x 7
2	-	1 x 19
3	-	1 x 37
4	-	7 x 7
5	-	(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/m	Electrical conductivity (20°C),no less than %IACS
CT	0.01777	97
CTA,CTAH	0.01777	97
CTM	0.02240	77
CTS	0.02395	72
CTMH	0.02573	67
CTMT	0.02653	65

Points: 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.