Classes of air temperatures.....................................................................................8Table 3 Classes of reference temperature............................................................................8Table A.1 Odd harmonic components compatibility levels ..................................................17Table A.2 Even harmonic components compatibility levels.................................................17Table A.3 Interharmonic components compatibility levels...................................................17This is a preview - click here to buy the full publication62498-1 IEC:2010 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION____________RAILWAY APPLICATIONS ENVIRONMENTAL CONDITIONS FOR EQUIPMENT Part 1: Equipment on board rolling stco-operation on all questions concerningvbj standardization in the electrical and electronic fields. Tothis end and in addition to other activities, IEC publishes International Standards, Technical Specifications,Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as IECPublication(s)). Their preparation is entrusted to technical committees; any IEC National Committee interestedin the subject dealt with may participate in this preparatory work. International, governmental and nongovernmentalorganizations liaising with the IEC also participate in this preparation. IEC collaborates closelywith the International Organization for Standardization (ISO) in accordance with conditions determined byagreement between the two organizatiiopons.2) The formal decisions or agreements of IEC on techniciopal matters express, as nearly as possible, an internationalconsensus of opinion on the relevant subjects since each technical committee has representation from allinterested IEC National Committees.3) IEC Publications have the form of recommendatioyuifyuns for internat