Multi Hole Yoke Plate

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Multi Hole Yoke Plate
Details
The Multi Hole Yoke Plate is a key connecting hardware in overhead transmission lines. Its distinctive appearance is immediately apparent from its design. Multiple precise openings on the plate enable multi-component, multi-directional connections and force transmission, effectively addressing the complex connection needs of transmission lines and optimizing load distribution. Unlike ordinary yoke plates, the Multi Hole Yoke Plate is primarily used in medium-high voltage, ultra-high voltage, and extra-high voltage transmission lines, adaptable to complex conditions such as parallel connections of multiple insulator strings and multi-split conductor connections.
Category
Yoke Plate
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Description
multi hole yoke plate

 

The Multi Hole Yoke Plate's design highlight lies in its four or more precisely machined mounting holes. These holes can be customized to meet user needs, solving the problem of connecting multiple components in multiple directions, which is impossible with conventional yoke plates. By evenly distributing conductor tension and environmental loads to multiple insulator strings or tower nodes, it adapts to the installation and operation requirements of complex transmission line structures.

The Multi Hole Yoke Plate's structural design prioritizes "balanced stress distribution, convenient installation, and strong adaptability." It primarily comprises the plate structure, hole design, and rounded corner transitions. Let's detail:
Plate Structure:A single steel plate is cut and forged. The plate thickness is designed according to the rated load, ranging from 10mm to 50mm. The shape is mostly rectangular, resulting in a compact structure and uniform stress distribution, preventing plate breakage due to stress concentration.
Hole Design:The plate features at least four holes, arranged in single, double, or multi-row configurations, adjustable to meet connection requirements. Hole diameters are standardized, with tolerances controlled within ±0.5mm. Hole walls are polished, smooth, and burr-free, facilitating smooth insertion of pins and bolts while reducing wear on connectors.
Rounded Corner Transitions:Both the plate edges and hole edges are rounded (radius ≥5mm). This prevents sharp edges from scratching workers and wires, improving construction safety. It also reduces stress concentration, preventing edge cracks caused by long-term stress and extending product lifespan.

 

Multi Hole Yoke Plate is compatible with 110kV-1000kV transmission lines. The number of holes, hole diameter, material, and surface treatment can be customized according to user needs. To facilitate user selection, we will now take a closer look at the specifications and models.

 

Hole Quantity

Hole Diameter

Plate Thickness

Rated Breaking Strength

Applicable Voltage Level

Material

Surface Treatment

Performance Characteristics
4 holes

20mm

12mm

200kN

110kV-220kV

Q235

Hot-dip galvanizing Compact structure, uniform stress distribution, and excellent corrosion resistance
6 holes 24mm 16mm 300kN

220kV-330kV

Q345

Hot-dip galvanizing Flexible multi-hole layout, strong load-bearing capacity, precise hole positioning, and rounded corner design
8 holes 30mm 25mm 600kN

500kV-750kV

High-strength forged steel Hot-dip galvanizing With a dense structure, high tensile strength, strong wind and icing resistance, and precision drilling, the installation is seamless, reducing vibration and wear
10 holes 40mm 40mm

1200kN

1000kV

High-strength forged steel Zinc-aluminum coating Extremely strong corrosion resistance, multi-row perforated design, no internal cracks, safe and reliable

 

 

Multi Hole Yoke Plate may develop certain defects after prolonged use. Different maintenance and care methods are required for different defects to ensure the long-term use of the product.

Common defects

For minor rust, localized detachment, or slightly loose bolts, we can directly clean, apply anti-corrosion coating, tighten the bolts, and perform regular maintenance.

Serious defects

If moderate rust or surface micro-cracks appear, a special inspection and rust and corrosion prevention treatment should be carried out. Fasteners should be replaced if necessary, and maintenance should be completed within a certain time limit.

Critical defects

If the plate shows deformation, cracks, rust penetration, bolt breakage, or localized overheating, we need to immediately shut off the power and replace the yoke plate and accessories.

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