The invention relates to a power dissipator (1) including at least one generally loop-shaped tubular element (2) having first and second ends (3, 4) connected to each other via a connecting element (5), the tubular element (2) intended for passing a cable (10) therethrough and equipped such that one portion of the pull of the cable is dissipated by deforming the tubular element (2) when the cable is pulled. The first and second ends (3, 4) are attached to the connecting element (5) such that the tubular element wrinkles by buckling when the cable is pulled.
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