The invention relates to a pole element having an insulation means, to a sliding insulation means for such a pole element and to the use of a sliding insulation means for such a pole element. In the case of a pole element of the type in question, the insulation means can be moved or is movable against gravity or against an internal material resistance along the axis in order to expose an upper end of the core for the application of a measuring tool, which upper core end protrudes upward from the pole screw head along the axis. According to the invention, in the case of the sliding insulation means, both the stop screw and the insulation means are produced from an insulating material, in particular the stop screw is produced from a tension- and torsion-resistant material and the insulation means is produced from a scratch- and impact-resistant material. According to the invention, in the case of the use of a sliding insulation means, a stop is arranged above a pole screw head, in particular a stop designed as a tool application end, namely particularly preferably an polygonal socket screw. According to the invention, a section of the sliding insulation means can be slid in the vertical direction between the stop and the pole screw head radially outside across a guide section in the direction of the axis.