METHOD FOR RECLAIMING AT LEAST ONE SUBSTANCE FROM AN INSULATION MEDIUM OF AN ELECTRICAL APPARATUS FOR THE GENERATION, TRANSMISSION, DISTRIBUTION AND/OR USAGE OF ELECTRICAL ENERGY

摘要

The present invention relates to a method for reclaiming a substance from an insulation medium (22) of an electrical apparatus (10) for the generation, transmission, distribution and/or usage of electrical energy, the insulation medium (22) comprising an organofluorine compound and a further component in gaseous phase. The method comprises the subsequent steps of: a) transferring an initial gas mixture containing the organofluorine compound and at least one further component of the insulation medium (22) out of an insulation space (16) of the electrical apparatus (10) into a substance reclaiming device (30), b) liquefying the organofluorine compound in the substance reclaiming device (30) by bl) compressing the initial gas mixture, and b2) cooling the compressed initial gas mixture down to a temperature where the organofluorine compound liquefies, and c) separating the liquefied organofluorine compound from the remaining gas comprising the at least one remaining component of the initial gas mixture.