Method for transferring electrical power and/or information signals between a first structure and a second structure, said second structure being movable in relation to the first structure by means of a driving support element and said first and/or second structure (210; 220) being provided with one or a plurality of de-icing arrangement(s), the method comprising the step of: - providing a transfer element arranged to transfer electrical power and/or information signals and/or measurement signals between the first structure and the second structure, wherein said transfer element is arranged for transferring electrical power for the de-icing arrangement(s), information for control of the de-icing arrangement(s) and/or measurement signals from the de-icing arrangement(s), wherein said transfer element is supported in the first structure at one end and in the second structure at its other end, wherein the transfer element is extendable and retractable and is arranged to follow the movement of the driving support element, whereby a certain extension/retraction position of the transfer element corresponds to a certain position of the second structure in relation to the first structure, characterised by the step of: - controlling electrical contact between the two structures (210; 220) by means of the transfer element so as to provide electrical contact in at least two different contact areas (414; 502; 607) on the transfer element, each contact area (414; 502; 607) corresponding to a different predetermined extension/retraction position of said transfer element, wherein said transferring of electrical power and/or information signals is performed intermittently in so far that transferring is not performed when moving said transfer element, but only when said transfer element is in one of said predetermined extension/retraction positions. - providing a transfer element arranged to transfer electrical power and/or information signals and/or measurement signals between the first structure and the second structure, wherein said transfer element is arranged for transferring electrical power for the de-icing arrangement(s), information for control of the de-icing arrangement(s) and/or measurement signals from the de-icing arrangement(s), wherein said transfer element is supported in the first structure at one end and in the second structure at its other end, wherein the transfer element is extendable and retractable and is arranged to follow the movement of the driving support element, whereby a certain extension/retraction position of the transfer element corresponds to a certain position of the second structure in relation to the first structure, - controlling electrical contact between the two structures (210; 220) by means of the transfer element so as to provide electrical contact in at least two different contact areas (414; 502; 607) on the transfer element, each contact area (414; 502; 607) corresponding to a different predetermined extension/retraction position of said transfer element, wherein said transferring of electrical power and/or information signals is performed intermittently in so far that transferring is not performed when moving said transfer element, but only when said transfer element is in one of said predetermined extension/retraction positions.