Fastening point for an overhead line of a power grid comprising: - a conductor rope, - a post insulator for supporting the conductor rope, the post insulator comprising a lead through, - a pole for carrying the post insulator and - a bird protector for an overhead line, - a first spiral and - a second spiral, - the first spiral and the second spiral being configured to envelop a conductor rope of the overhead line at least in sections, and - the first and second spirals (6,8) at least partly being manufactured from an insulating material for insulating the conductor rope vis a vis an environment at least in sections, a support section of the conductor rope being formed between a first section and a second section with which the conductor rope rests on the post insulator, - the first spiral being an attachment spiral for attaching the conductor rope to the post insulator, - the second spiral being an attachment spiral for attaching the conductor rope to the post insulator, - the first spiral and the second spiral being fed through the lead through of the post insulator, - the conductor rope and the attachment spirals (6,8) being friction-locked to each other, characterized by - a third spiral, - the third spiral being configured to envelop the conductor rope at least in sections, - the third spiral at least partially being manufactured from an insulating material in order to insulate the conductor rope vis a vis an environment, at least partially, - the third spiral being configured to at least envelop a support section of the conductor rope at least in a rest area of the post insulator, - wherein the first spiral and the second spiral envelop the first section and the second section of the conductor rope completely, - wherein the first spiral the second spiral and the third spiral envelop the conductor rope completely in the region of the post insulator, and - wherein the third spiral envelops the support section of the conductor rope completely in the rest area of the post insulator. - a conductor rope, - a post insulator for supporting the conductor rope, the post insulator comprising a lead through, - a pole for carrying the post insulator and - a bird protector for an overhead line, - a first spiral and - a second spiral, - the first spiral and the second spiral being configured to envelop a conductor rope of the overhead line at least in sections, and - the first and second spirals (6,8) at least partly being manufactured from an insulating material for insulating the conductor rope vis a vis an environment at least in sections, a support section of the conductor rope being formed between a first section and a second section with which the conductor rope rests on the post insulator, - the first spiral being an attachment spiral for attaching the conductor rope to the post insulator, - the second spiral being an attachment spiral for attaching the conductor rope to the post insulator, - the first spiral and the second spiral being fed through the lead through of the post insulator, - the conductor rope and the attachment spirals (6,8) being friction-locked to each other, - a third spiral, - the third spiral being configured to envelop the conductor rope at least in sections, - the third spiral at least partially being manufactured from an insulating material in order to insulate the conductor rope vis a vis an environment, at least partially, - the third spiral being configured to at least envelop a support section of the conductor rope at least in a rest area of the post insulator, - wherein the first spiral and the second spiral envelop the first section and the second section of the conductor rope completely, - wherein the first spiral the second spiral and the third spiral envelop the conductor rope completely in the region of the post insulator, and - wherein the third spiral envelops the support section of the conductor rope completely in the rest area of the post insulator.