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The Preformed Tension Wire Clamp, also known as the Helical Grip, is a high-strength preformed tension fitting used for terminating and anchoring overhead conductors in utility distribution networks. The Preformed Tension Wire Clamp provides full-tension performance, anti-slip grip, excellent corrosion resistance, and reliable conductor protection. The helical design distributes pressure evenly along the cable surface, preventing damage while ensuring stable long-term installation. This Helical Grip is widely used in overhead line connection, ABC cable systems, rural electrification, utility pole dead-end points, and transmission line anchoring.
The Preformed Tension Wire Clamp provides superior mechanical strength, uniform pressure distribution, anti-slip performance, and corrosion resistance. It ensures reliable tension termination for various conductor types and is easy to install without special tools.
The Helical Grip is applied by wrapping the preformed armor rods around the conductor following the helical direction until fully seated at the dead-end point. It is used for overhead line termination, pole dead-end anchoring, ABC cable tensioning, transmission line support, and substation distribution connections.
Catalogue Number | Conductors GBT117199/83LGJ/LGJF | Length | Pieces | |
Section(mm2) | O.D(mm) | |||
TNL-16/3 | 16/3 | 5.55 | 444 | 3 |
TNL-25/4 | 25/4 | 6.96 | 546 | 3 |
TNL-35/8 | 35/8 | 8.16 | 622 | 3 |
TNL-50/8 | 50/8 | 9.60 | 685 | 3 |
TNL-70/10 | 70/10 | 11.4 | 736 | 3 |
TNL-95/15 | 95/15 | 13.61 | 876 | 4 |
TNL-95/20 | 95/20 | 13.87 | 876 | 4 |
TNL-120/7 | 120/7 | 14.5 | 876 | 4 |
TNL-120/20 | 120/20 | 15.07 | 889 | 4 |
TNL-120/25 | 120/25 | 15.74 | 889 | 4 |
TNL-150/8 | 150/8 | 16.00 | 889 | 4 |
TNL-150/20 | 150/20 | 16.67 | 1016 | 5 |
TNL-150/25 | 150/25 | 17.10 | 1016 | 5 |
TNL-150/35 | 150/35 | 17.5 | 1016 | 5 |
TNL-185/10 | 185/10 | 18.00 | 1016 | 5 |
TNL-185/25 | 185/25 | 18.88 | 1155 | 6 |
TNL-185/30 | 185/30 | 18.90 | 1155 | 6 |
TNL-185/45 | 185/45 | 19.00 | 1155 | 6 |
TNL-210/10 | 210/10 | 19.60 | 1155 | 6 |
TNL-210/25 | 210/25 | 19.98 | 1155 | 6 |
TNL-210/35 | 210/35 | 20.38 | 1155 | 6 |
TNL-210/50 | 210/50 | 20.86 | 1155 | 6 |
TNL-240/30 | 240/30 | 21.60 | 1270 | 8 |
TNL-240/40 | 240/40 | 21.66 | 1270 | 8 |
TNL-300/15 | 300/15 | 23.04 | 1270 | 8 |
TNL-300/20 | 300/20 | 23.43 | 1270 | 8 |
TNL-300/25 | 300/25 | 19.76 | 1442 | 10 |
TNL-300/40 | 300/40 | 26.94 | 1442 | 10 |
TNL-300/50 | 300/50 | 24.26 | 1442 | 10 |
Each Preformed Tension Wire Clamp undergoes tensile strength testing, fatigue resistance testing, corrosion resistance evaluation, and dimensional inspection. Products follow IEC & utility standards with full traceability.
Q1: What conductor types can the Preformed Tension Wire Clamp support?
A1: It supports AAC, AAAC, ACSR, and insulated ABC conductors.
Q2: Does the Helical Grip slip during heavy load?
A2: No, the helical design provides strong anti-slip performance.
Q3: Is it suitable for coastal or corrosive areas?
A3: Yes, corrosion-resistant materials are used.
Q4: Does installation require tools?
A4: No, installation is fast and tool-free.
