AUSZUG | eb - Elektrische Bahnen INT 2/2015

34 113 (2015) INT 2 Contact Lines The space to be kept free for the passage of the pantograph and the usable contact wire lateral po- sition on the pantograph form essential interfaces between the subsystems Energy and Rolling Stock [6] (Figure 1). The calculations of the interfaces are based on the specifications of the mechanical-kine- matic pantograph gauge also called pantograph limit gauge. For this purpose the new TSI ENE [1] contains detailed instructions for calculation, which shall be used by all infrastructure managers in Europe and, therefore, harmonizes the national calculation rules used to date. The verification, that, the mechanical- kinematic pantograph gauge is mett, forms a part of the EU certification of the subsystem Energy for over- head contact lines as an interoperability constituent. 2 Pantograph gauge 2.1 General The pantograph gauge determines the space to be kept free for the unhindered passage of panto- graphs. Except for the contact wire, the steady arms and the wind stay, no other components are per- mitted within the pantograph gauge. On each line on which different pantograph profiles are used the longest pantograph head determines the panto- graph gauge. The establishment of the pantograph gauge is based on the calculation procedures for the structure gauge, however also includes some specifics. During operation the pantograph contacts the contact wire continuously and, therefore, the pantograph height varies. Accordingly, the height and consequently the width of the pantograph gauge vary as well. The structure gauge is determined in accordance with standard EN 15273 Part 1 [7], Part 2 [8] and Part 3 [9]. The first part of EN 15273 [7] deals with general aspects which affect the infrastructure and the rolling stock, then the reference gauges and the corresponding standards. The second part [8] in- cludes rules for the calculation of the vehicle gauge, depending on the rolling stock characteristics, on the chosen structure gauge and the related calcula- tion instructions. The third part [9] contains calcu- lation instructions for the structure limitation lines, also called structure gauges, which are necessary for the operation of railway rolling stock. The standard distinguishes between the re- sponsibility of the infrastructure and rolling stock subsystems . The reference gauge B as an interface separates the responsibility of the infrastructure and rolling stock structures (Figure 2). The infrastructure manager guarantees the open passage for the rol­ ling stock with pantographs within the pantograph gauge while the rolling stock manager ensures that the operating rolling stock stays within the individual rolling stock gauges. Outside the reference gauge, the structure gauge C is defined based on the calcu- lation rules according to EN 15273-1 [7]. The rolling stock gauge A is obtained using the calculation rules in EN 15273-2 [8] and starting from the reference gauge B (Figure 2). The individual reference gauge, the rolling stock gauge and the structure gauge differ according to the calculation method used. EN 15273-3 distin- guishes between the static, kinematic and dynamic calculation methods. For determining the pantograph gauge the TSI ENE [1] uses the kinematic calculation method, which leads to the mechanical-kinematic pantograph gauge . The electrical minimum clearances are not taken into account when applying the calculation method according to EN 15273-3 [9] and have to be considered in addition by the infrastructure ma­ nager. Within the area of the pantograph, the electri- cal kinematic pantograph gauge is created by adding the individual electrical clearances to the mechanical- kinematic pantograph gauge , which corresponds to the pantograph structure gauge. 2.2 Calculation method 2.2.1 Mechanical-kinematic pantograph gauge The width of the mechanical-kinematic pantograph gauge at the lower and upper verification points, re- spectively, results from [1] b' u(i/a),mec = ( b w + e pu + S' i/a + qs' i/a + ∑j u ) max (1) and maximum vehicle gauge A reference gauge B structure gauge C E G b electrical-kinematic pantograph gauge b h',ele TOR real vehicle gauge vehicle gauge A' E' G' reference gauge B' h',mec mechanical-kinematic pantograph gauge electrical minimum clearance Figure 2: Rolling stock gauge, reference gauge and structure gauge.