A yoke plate, also called a clevis plate, is string hardware used in electrical power systems to couple clevis, socket tongue, or insulators. It attaches insulators to the cross arm on one end and to the conductor termination on the other, forming a critical connection in overhead power line infrastructure.
These components are employed in transmission lines for insulator mounting and securing conductor bundles. Applications include deadend configurations with two insulator strings and one deadend clamp, suspension setups with a single insulator string, and V-string arrangements to bundle two or three conductors while maintaining proper line angles.
Yoke plates are manufactured from high-quality carbon steel or ductile iron, typically exceeding 16mm thickness, with raw materials containing no welded or jointed points. Surface treatment uses hot dip galvanizing per ASTM A153 standards, providing resistance to moisture, salt, pollution, and rust. Manufacturing involves oxy arc cutting for smooth sections and precision hole-punching using 140-ton machines.
Available types include triangular, rectangular, and irregular designs, with variants such as deadend yoke plates, tangent triangular yoke plates, and V-string conductor yoke plates. Rated failure loads range from 100 kN to 600 kN, with ultimate strengths up to 80,000 lb depending on the model. Typical specifications include hole diameters around 1.25 inches and dimensions tailored to transmission line requirements.
Yoke Plate Supplier: Ensuring Grid Reliability and Safety
RaxPower is a leading manufacturer and supplier of high-quality yoke plates for the power transmission industry. With over 21 years of experience based in Hebei Province, China, our yoke plates are designed to effectively secure and support overhead power lines, ensuring the reliability and safety of the electrical grid.
We offer a comprehensive range of yoke plates in various types and sizes to meet diverse customer needs. Manufactured using premium materials and advanced hot forging technology, our yoke plates achieve greater strength and accurate sizing, which directly enhances their performance and longevity.
Our strict quality control includes multi-stage testing and hot-dip galvanizing that provides smooth, corrosion-resistant surfaces with coating thickness exceeding 85 microns, compliant with IEEE and IEC standards. Because of our commitment to excellence and customer satisfaction, every yoke plate is reviewed twice before packing to ensure 100% quality.
For reliable yoke plates that contribute to efficient power transmission, contact RaxPower today to get quotes and place your orders.
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| Catalog Number | Material | b (mm) | b1 (mm) | h (mm) | Φ1 (mm) | Φ2 (mm) | L (mm) | Rated Failure Load (kN) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| P-L-1040 | Carbon Steel | 16 | 16 | 70 | 31.75 | 31.75 | 400 | 100 | 4.43 |
| P-L-1240 | Carbon Steel | 16 | 16 | 70 | 31.75 | 31.75 | 400 | 120 | 4.66 |
| P-L-1640 | Carbon Steel | 18 | 18 | 100 | 31.75 | 31.75 | 400 | 160 | 5.80 |
Frequently Asked Questions (FAQS)
What is a yoke plate and where is it used?
A yoke plate is string hardware used to couple electrical clevises, socket tongues, or insulators, attaching the cross arm to conductor termination with insulators. It is used on overhead power lines and transmission lines in applications such as suspension with a single insulator string or deadend with two insulator strings and a deadend clamp.
What types of yoke plates are available?
Yoke plates come in various types including triangular, rectangular, irregular, deadend, tangent triangular, v-string conductor, and 3 conductor jumper yoke plates, categorized by shape and the number of conductors they support, with multiple sizes, hole spacings, and ultimate strength ratings to meet diverse application requirements.
What materials and manufacturing processes ensure durability?
Yoke plates are made from carbon steel, ductile iron, or galvanized steel. They are manufactured using oxy arc cutting for smooth, lump-free sections and punching holes with heavy machinery. The surface is hot-dip galvanized to provide corrosion protection against extreme conditions such as high humidity, salt pollution, dust, and intense solar radiation, ensuring rust-free, long-lasting performance.
How do yoke plates enhance power transmission safety?
Yoke plates enhance safety through high-strength materials, hot-dip galvanization for corrosion resistance, and rigorous testing to prevent accidents, ensuring reliable and secure connections in power systems.
What specifications should I consider when selecting a yoke plate?
Key specifications include dimensions like length, width, and hole sizes, rated failure load in kN or lbf, weight, material type, and hole spacing to match your specific application requirements.
What capabilities support large-volume orders and on-time delivery?
Automated manufacturing processes with precise punching machines, rigorous raw material testing for uniformity, mass production facilities, strict quality control at every stage, and a wide product selection enable efficient handling of bulk orders and reliable project timeline delivery at competitive pricing.
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