Anchor clamps are essential for securing low-voltage aerial bundled cables and telecommunications cables, offering a permanent and reliable connection. Their purpose is to tension and fix cables at specific points, allowing slight deflection, similar to an anchor. This function gives them their name. While sometimes referred to as dead end clamps, anchor clamps is the more precise term for use in low-voltage electrical and telecommunication networks.

Types of anchor clamps:

- For cables with neutral messenger: Used for cables with an AlMgSi alloy or insulated ACSR conductor. Common models include Marel PA 1500 and PA 2000.
  
- For self-supporting cables: Designed for cables with up to four cores and cross-sections from 16mm² to 185mm². Examples are Marel PA 25 and PA 435.

- For telecommunications cables: Used for fiber-optic and coaxial cables with diameters from 1mm to 20mm, like Marel DN 118 and PA 1500 ADSS.

Methods of cable tensioning:

- Self-adjusting wedges: Cable weight pulls serrated wedges to grip tighter as tension increases.
  
- Single-wedge clamps: A single wedge locks the cable as tension drives it deeper into the clamp.

- Bolt-driven clamps: Bolts apply pressure to the cable’s sheath, securing the connection.

Technical parameters and standards:

Anchor clamps are selected based on factors like span, cable diameter, and declared failing load. They must not damage the cable's insulation, so they undergo tests according to EN 50483 standards:

- Tensile tests: Ensures clamps withstand high and low temperatures.
  
- Corrosion and climatic testing: Verifies durability under salt, sulfur dioxide, and extreme weather conditions.

Conclusion:

Anchor clamps provide secure, tested solutions for cable tensioning, ensuring durability in electrical and telecommunications networks. Their specific design and rigorous testing guarantee long-term performance in challenging environments.