Cable pulling heads for single-conductor cables. Mounted directly on the conductor, for this much higher pulling forces are possible compared with cable grips acting on the cover. For high voltage cables 110-550 kV, from 800-3200 mm². Easy mounting procedure on cable manufacturers place or in the field within 2-3 minutes. This pulling heads are reusable continuously.
Before dispatch of the cable one needs: 1 cable sleeve, 1 taper key, 1 cap.
Before pulling the cable the cap will be unscrewed and the fork head screwed on the sleeve.
Before cable pulling a cardan link and a swivel must be mounted on the pulling head.
Mounting tool for all cable pulling heads for segment conductors with central rope. Made of special high quality steel, for beating in round taper keys.
Swivels with friction bearings, turnable connector between winch rope and cable grip. The friction bearing guarantees that the swivel reduces rotation and torsion with increasing pulling force. Only for underground cables, not suitable for pulling overhead lines.
kN = Minimum Breaking Load
Swivels for underground cables must be equipped only with friction bearings.
With increasing pulling force friction bearings twist harder and thus avoid the untwisting of the pulling rope
Ball bearings let untwist the ropes and leads to destruction.
