Dimensions: Approximately 400mm in length, 100mm in width, 18mm in thickness, and 28mm in aperture.
Specifications: Breaking load 160kN.
Material: Made of carbon steel strip.
Surface Treatment: Hot-dip galvanized for enhanced corrosion resistance, suitable for various outdoor environments.
Application: For assembling a double string of tension insulators with a single conductor, or a single string of insulators with two split conductors.
Weight: Approximately 5.8kg.
The LV-1640 type coupling plate differs from other LV-type yoke plate in that its appearance is a trapezoidal triangle, not a triangle, making it easily distinguishable among other models. Its operating load is 120kN, so the required operating environment requires a working load ≤ 72kN and a nominal breaking load of 60% of 120kN. Exceeding this load range can easily cause hole wall deformation.
The LV-1640 type coupling plate differs from other LV-type yoke plate in that its appearance is a trapezoidal triangle, not a triangle, making it easily distinguishable among other models. Its operating load is 120kN, so the required operating environment requires a working load ≤ 72kN and a nominal breaking load of 60% of 120kN. Exceeding this load range can easily cause hole wall deformation. The LV-1640 yoke plate is typically manufactured from steel, but depending on the application, Q235 steel or No. 10 carbon structural steel may also be used. To ensure long-term service life, the surface is hot-dip galvanized to prevent rust and corrosion in dry environments.
For users of the LV-1640 yoke plate, quality is of paramount concern. So how can we determine the quality of the coupling plate?
Zinc coating coverage
Check for complete zinc coating coverage. Shine a strong light on the surface to check for any areas of missing coating.
01
Defect inspection
Surface-raised zinc nodules or zinc slag that cannot be removed by grinding are considered unacceptable.
02
Peeling
Separation of the coating from the substrate indicates that the substrate was not cleaned thoroughly during galvanizing, making it difficult to provide adequate protection and resulting in a failure.
03
Cracks and bubbles
Poor internal bonding of the zinc coating can expand under stress or environmental changes, leading to corrosion penetration from within. Use is not recommended.
04
High-quality LV-1640 yoke plate offer the following performance characteristics during use:
Corrosion resistance
The zinc layer is exceptionally effective, using sacrificial anodic zinc to protect the base material. Even in harsh coastal and industrial environments, it offers strong corrosion resistance.
Strong bonding
The hot-dip galvanizing process forms a zinc-iron alloy layer that resists peeling and detaching when subjected to force, vibration, and impact, providing long-lasting protection.
Mechanical properties
After production, the overall mechanical properties remain largely unchanged, and the uniform coating thickness maintains no loss of precision.
High cost-effectiveness
The LV-1640 yoke plate offers excellent value for money, as it requires minimal maintenance and upkeep after galvanizing, requiring only routine care.
The LV-1640 yoke plate and LV-3018 yoke plate are the two most commonly used LV joint plates. What are the differences in their applications?
The LV-3018 yoke plate is suitable for applications with high stresses, such as parallel assembly of double and multiple insulator strings, and assembly of insulator strings with two or more conductors.
The LV-1640 yoke plate is suitable for connecting power lines with low stresses, such as assembly of double tension insulator strings with a single conductor, or assembly of a single insulator string with two split conductors.
As can be seen, the two types have distinct application differences. If you are unsure which coupling plate to choose for your application, please contact customer service.
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