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Applies to electrical insulation systems, specifies a short-time thermal and electrical evaluation procedure - applicable for devices with a supply voltage up to 1000 V (d.c./a.c./pulse), - using a wire-wound coil model; this model may be used for wire-wound applications, such as transformers, chokes, ballasts, reactors, ferrite converters, etc., - with minimum test life of 1500 h at the lowest ageing temperature, - for products that are not normally subjected to vibration. The model shall contain all components of the final product in order to determine chemical interaction under thermal ageing conditions. No modifications are allowed because this ageing program is designed to evaluate the entire EIS.