LS-1212 Yoke Plate

 

Dimensions: 16mm thick, 65mm wide, 18mm hole diameter, 400mm hole spacing, 120mm plate length, 120mm center-to-center distance between holes.

Specifications: Nominal breaking load: 120kN.

Material: Made of carbon steel strip.

Surface treatment: Hot-dip galvanized for enhanced corrosion resistance, suitable for various outdoor environments.

Applications: Used for assembling double tension insulator strings with double and triple conductors, as well as for assembling substation coupling plates and double suspension insulator strings with double suspension clamps.

Weight: Approximately 5kg.

The LS-1212 yoke plate is a type of connecting hardware used to connect double and multiple insulator strings in parallel. It not only transfers mechanical loads but also provides electrical connections, and is often used on high-voltage transmission lines of 110kV and above. It has a breaking load of 117kN and can operate in temperatures ranging from -40°C to +80°C.

The LS-1212 yoke plate is a type of connecting hardware used to connect double and multiple insulator strings in parallel. It not only transfers mechanical loads but also provides electrical connections, and is often used on high-voltage transmission lines of 110kV and above. It has a breaking load of 117kN and can operate in temperatures ranging from -40°C to +80°C. It undergoes vibration resistance testing at the factory and has been shown to withstand 1 million vibration cycles without cracking. It is manufactured from Q235B carbon structural steel with a tensile strength of 500MPa or higher, and is galvanized to a thickness of 86μm or higher. It also passes salt spray testing to ensure corrosion resistance meets requirements.

Although all LS-1212 yoke plate are available, they come in a variety of models, each suited to different application scenarios:

The various LS-1212 yoke plate demonstrate our rigorous commitment to grid reliability. From initial production to subsequent use and maintenance, we continuously improve to meet the diverse needs of different users.

State Grid requires the LS-1212 yoke plate to have a service life of 40 years or longer, 10 years longer than other types. For use in cold regions, particularly at -50°C, improved steel with a low-temperature impact toughness of 27J or higher is used. Reinforced tie plates are also used in heavily icing areas to reduce ice loads. Many manufacturers are also using Q345B low-alloy steel instead of Q235B in production, further improving fatigue resistance and enabling application in UHV lines. Applying a nano-composite coating to galvanized steel can extend salt spray resistance to 1000 hours, enabling use in highly corrosive coastal environments.

After installation, the LS-1212 yoke plate should be inspected and accepted:

After installation, there are also many precautions to be taken, including prohibiting the use of a hammer to force alignment of the coupling plates. Retighten the bolts after one year of operation to ensure performance.