Pre-stretched Wire Tail Anchor Head Design

In power line construction, the anchor head at the tail of the pre-stranded wire must precisely match the tension fitting interface. The machining tolerances, surface treatment, and shape design of the tail anchor head directly affect the stability and installation accuracy of the interface. Standardized processing procedures ensure a good fit between the anchor head and the tension fitting, preventing loosening or misalignment. The anchor head shape must also match the corresponding tension fitting for pre-stranded wires of different diameters and specifications to meet various line tension requirements.

Interface Matching Analysis

The matching of the anchor head and tension fitting interface can be analyzed from three dimensions:

• Size Matching: The diameter of the tail anchor head and the fitting hole diameter must be strictly matched, with tolerances controlled within design standards.

• Surface Contact: The smoothness of the contact surface and anti-corrosion treatment directly affect contact stability and long-term service life.

• Stress Distribution: The interface design must ensure uniform tension transmission, avoiding localized stress concentration that could lead to material fatigue.

By considering these three aspects in detail, construction personnel can assess the installation status of armour rod in transmission line and determine whether the interface meets design requirements.

Installation Accuracy and Construction Coordination

During construction, the matching of the armor rods conductor tail section with the tension fitting depends not only on the anchor head's design but also on the construction operation. Lifting, tensioning, and fixing all require adherence to standard operating procedures. Monitoring the interface matching accuracy allows for timely adjustments to the operating methods, maintaining tension balance and structural stability. Construction units typically equip the site with measuring tools to monitor the fit between the anchor head and the fitting in real time to meet the safety requirements of the line operation.

The matching of the anchor head at the pre-stirred wire tail section with the tension fitting is a crucial step in ensuring line stability. Coordinated design and construction can improve overall installation quality, extend service life, and support the construction of high-standard lines.