The LV-1020 Yoke Plate is a three-hole yoke plate primarily used for connecting parallel double-wire insulator strings and multi-strand insulator strings. Compared to similar yoke plates, it offers significant advantages: a V-shaped symmetrical structure with symmetrical force distribution, preventing eccentric stress; and a three-hole layout for enhanced structural stability. High-precision hole positions ensure zero bolt jamming during assembly, with a hole spacing tolerance of ±0.5mm (200mm) and a hole diameter of φ20H7.
To meet diverse user needs, the LV-1020 Yoke Plate supports customized production. Customized hole spacing is the most common. For example, a customer initially used a standard 200mm hole spacing, but the local insulator string spacing was 250mm, making installation impossible. Our company customized the center distance between the two holes to 250mm while maintaining the same shape, plate thickness, and hole diameter, while also ensuring unchanged symmetry, flatness, and stress structure. This makes it ideal for power transmission line renovation projects.
Detailed Production Process For The LV-1020 Yoke Plate
Material Selection
High-strength alloy steel with a tensile strength of ≥500 MPa is required. Surface oil and oxide removal are essential to prevent excessive corrosion.
01
Galvanizing Treatment
Corrosion protection is a crucial function of joint plates, so we have very high requirements for the zinc coating. Before galvanizing, the alloy steel can be immersed in a mixed solution of NH₄Cl and ZnCl₂ to assist in the galvanizing process.
02
Drying and Preheating
Preheat the workpiece to 120-180°C to prevent deformation or zinc flaking during zinc immersion.
03
Zinc Dip Plating
Immerse the workpiece in molten zinc at 450-470°C for approximately 0.5-1.5 minutes.
04
Post-Galvanizing Finishing
Manually remove excess zinc bumps and smooth the surface to prevent injury to personnel during use.
05
What Are The Main Applications For The LV-1020 Yoke Plate?
Split Conductor Load
Rigidly connects overhead line split conductors to suspension insulator strings, evenly transferring mechanical loads across multiple split conductors and effectively preventing conductor damage.
Tower Guy Reinforcement
Enhances wind load resistance and mechanical stability, especially effective in typhoon-prone areas or high-risk scenarios.
Insulator String Extension
Used to improve the mechanical strength of the tension section of a transmission line. For high-load scenarios such as long spans and heavy ice areas, the LV-1020 type tie plate is the preferred choice.
The LV-1020 yoke plate is primarily designed for overhead lines and substations, playing a crucial role in the transition between insulator strings and conductors, or in the guying system. Its breaking load is ≥100kN, but it's important to note that the actual load during use is ≤80kN. To prevent metal fatigue caused by overload, the actual working load must be ≤80% of the rated value.
The LV-1020 yoke plate is primarily designed for overhead lines and substations, playing a crucial role in the transition between insulator strings and conductors, or in the guying system. Its breaking load is ≥100kN, but it's important to note that the actual load during use is ≤80kN. To prevent metal fatigue caused by overload, the actual working load must be ≤80% of the rated value. It weighs approximately 2.30kg and features symmetrical hole placement, compatible with both M16 and M20 bolts. High-strength alloy steel is typically used during production to ensure tensile strength, along with a zinc coating that meets specified thickness requirements. This makes it suitable for use in both dry and harsh corrosive environments.
For transmission and distribution lines above 35kV, LV-1020 yoke plate this effectively addresses the three major requirements of conductor load distribution, tower wind reinforcement, and complex insulator string assembly, making it suitable for harsh environments such as mountainous and coastal areas.
After selecting the appropriate LV-1020 yoke plate, it will be packaged and shipped to you. Moisture- and shock-resistant packaging materials are used to effectively protect the zinc coating from wear. Choose the appropriate packaging box based on the tie plate size and weight. When transporting on plains, light trucks are preferred. If it is mountainous, tracked transport vehicles are selected. You can communicate with customer service when purchasing, and customer service will provide the best transportation plan.
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