PT Adjuster Plates

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PT Adjuster Plates
Details
PT Adjuster Plates are length adjustment hardware specifically designed for high-voltage transmission lines. They are used to compensate for dimensional deviations during construction, adjust the length of insulator strings, and ensure uniform, stable, and reliable stress distribution between the insulator strings and the towers. The product mainly consists of adjusting screws, connecting holes, and fixing bolts, allowing for fine-tuning of length from ±30mm to ±100mm. With its simple structure and convenient installation, it is widely used in transmission projects of various voltage levels.
Category
Adjusting Plate
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Description
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Specifications

Parameter

Specification

Product Name

PT Adjuster Plates

Structure

Adjusting Screw, Connection Holes, Fixing Bolts

Length Adjustment Range

±30 mm ~ ±100 mm

Common Models

PT-7 / PT-10 / PT-12

Material Options

Q235B Carbon Steel / Q355B High Strength Steel / 304 Stainless Steel

Surface Treatment

Hot Dip Galvanized

 

 

Core Advantages of the Product:

1. Precise Length Adjustment: Adjustable screws allow for fine-tuning within a range of ±30~±100mm, compensating for dimensional deviations during installation and ensuring uniform stress on the insulator string without tilting.

2. Simple Structure and Easy Installation: The PT Adjuster Plates feature a simple overall structure, requiring no complex tools for installation and commissioning, resulting in high on-site construction efficiency.

3. Multiple Material Options: Available in carbon steel, high-strength steel, and stainless steel to suit different load and corrosive environments.

4. Stable and Reliable Connection: Bolted connections ensure a secure lock after adjustment, preventing loosening or displacement during operation.

5. Wide Applicability: PT Adjuster Plates are suitable for various voltage levels, from low-voltage lines to 500kV ultra-high-voltage projects.

 

Material Selection Reference

Material Yield Strength Corrosion Resistance Cost Application
Carbon Steel (Q235B) ~235 MPa Fair, anti-corrosion treatment required Low Light load (≤50kN) secondary components, dry environments, budget-limited projects
High Strength Steel (Q355B) ~355 MPa Fair, anti-corrosion treatment required Medium Heavy load (>50kN) load-bearing components, balance of cost and performance
Stainless Steel (304) Similar to carbon steel Excellent, no additional treatment needed High Humid, coastal, corrosive environments, maintenance-free operation

 

Application Scenarios

•High-voltage transmission lines: Adjusting the length of double-string insulators to balance the stress on insulators on both sides of the angle tower and compensate for construction distance deviations.

•Tower connections: Connecting tower crossarms to insulators and grounding hardware; adapting to different structural dimensions and suspension points through hole position adjustment.

•Urban and rural power grid construction: Adapting to diverse line routes and connection angles in complex erection environments to ensure stable connections.

•Special environmental engineering: Corrosive environments such as coastal areas, industrial zones, and high-humidity mountainous areas; hot-dip galvanizing treatment reduces salt spray and exhaust gas corrosion, reducing subsequent maintenance.

 

Installation Precautions

1. Visual inspection before installation: Surface free of rust, deformation... 1. Check for cracks, smooth threads, and intact galvanized layer. Verify the model, load, and adjustment range.

2. Before installation, wipe away surface dust and oil. A small amount of rust inhibitor can be applied.

3. Tighten bolts evenly to the specified torque, avoiding excessive force on one side to prevent damage to the threads.

4. After adjustment, confirm that the position is not offset and the connection is secure and not loose.

 

5. Avoid violently striking the product to prevent affecting the adjustment accuracy; avoid outdoor installation in rainy or foggy weather.

For precise dimension drawings, detailed quotations, or customization requirements for specific models, please provide circuit parameters, operating conditions, or design drawings. We will match suitable specifications for you and provide FOB/CIF quotations, minimum order quantities, packaging, and shipping details.

 

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