Model number meaning: "L" indicates a jointed plate type, "21" indicates a nominal failure load of 210kN, and "15" may indicate a hole spacing of 150mm.
Dimensions: The hole spacing is approximately 150mm. thickness approximately 18mm, length approximately 300mm, and hole diameter approximately 26mm.
Weight: 5-8kg.
Model number meaning: "L" indicates a jointed plate type, "25" indicates a nominal failure load of 250kN, and "18" may indicate a hole spacing of 180mm.
Dimensions: the plate width is approximately 110mm, thickness approximately 18mm, hole spacing approximately 180mm, and length approximately 300mm.
Weight: 4-6kg.
Model number meaning: "L" indicates a joint plate type, "30" represents a nominal failure load of 300kN, and "18" likely indicates a hole spacing of 180mm.
Dimensions: Length approximately 300mm, width approximately 120mm, thickness approximately 18mm, hole diameter approximately 26mm.
Weight: 7-10kg.
The LV yoke plate is designed for assembling multiple split conductors and complex insulator strings. It can be used to assemble a double-stranded tension insulator string with a single conductor, or a single insulator string with two split conductors. It provides a reliable connection between the insulator string and the conductors, enabling the insulators to withstand conductor tension and ensuring stable operation of the transmission line.
The LV yoke plate is designed for assembling multiple split conductors and complex insulator strings. It can be used to assemble a double-stranded tension insulator string with a single conductor, or a single insulator string with two split conductors. It provides a reliable connection between the insulator string and the conductors, enabling the insulators to withstand conductor tension and ensuring stable operation of the transmission line. The LV yoke plate has multiple connection holes for connecting to insulator strings, conductor clamps, cable tie clamps, and other hardware. Its shape and size vary depending on the usage scenario and connection requirements.
How do I properly install the LV yoke plate? Strictly follow the standardized installation process:
Preparation: Prepare a hexagonal wrench, torque wrench, Φ20/Φ39 diameter adapter bolts, insulator string components, and galvanized washers. Verify the coupling plate model conforms to the drawing requirements, focusing on the hole diameter and nominal breaking load. Inspect the integrity of the coupling plate's galvanized coating to ensure there are no cracks or peeling.
Securing the Insulator String: Connect the double or multi-coupled insulator string with bolts through the pre-set holes in the coupling plate, ensuring the insulator cups are oriented in the direction of the load.
Connecting the Conductors: Connect the conductor tension clamps to the holes on the other side of the coupling plate, aligning the clamps perpendicularly to the insulator string.
Fixing Spacing: Use a vernier caliper to measure the conductor spacing or tension angle, maintaining a tolerance within ±5%.
Anti-Corrosion Treatment: Apply zinc-rich paint to cuts or welds to prevent scratches on the LV yoke plate coating and extend its service life.
Common LV yoke plate include the LV-0712, LV-1214, LV-2115, and LV-3018. So, how do we choose the right model for our needs? When designing, the model should be matched based on the voltage level, conductor specifications, and environmental conditions.
LV-0712: Suitable for conventional lines, suitable for double-split conductors;
LV-1214: Provides parallel anchoring of two stranded steel wires and a rigid connection between a single conductor and a double-stranded tension insulator string, suitable for harsh environments;
LV-2115: Combined with hardware such as U-shaped hanging rings and bowl-shaped hanging plates, it forms a complete "insulator string-coupling plate-clamp" connection and can be used for high-voltage lines ≥35kV;
LV-3018: Suitable for ultra-high voltage lines, supporting four-split conductors and large spans; suitable for coastal and highly corrosive areas, with a galvanized thickness of ≥80μm.
During use, LV yoke plate may be affected by various external forces and environmental factors, requiring regular maintenance and inspection. Check the coupling plates for defects such as deformation, cracks, wear, and corrosion, and check whether the bolts and nuts at the connection points are loose. Determine the timing of regular inspections based on the application environment. Repair or replace any problematic LV yoke plate promptly to ensure safe and reliable operation of the transmission line. Proper maintenance and care can extend service life and improve cost-effectiveness.
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