Structural Features: The DB-type adjustment plate has a fixing hole on one side and multiple connection holes on the other. For example, the DB-16100-170 adjustment plate can be mounted on one side of the fitting in the "0" hole and on the other side in other holes. This allows for different length combinations, making it suitable for fine-tuning string lengths.
Material and Craftsmanship: Typically constructed of hot-dip galvanized steel with a surface treatment, it is rust- and corrosion-resistant, ensuring long-term use in outdoor power environments.
Purpose and Application: It primarily adjusts the length of insulator strings or conductors, resolving issues caused by dimensional errors or uneven force during installation and ensuring uniform line tension. It is often used in conjunction with tension clamps and insulator strings, and is widely used in overhead transmission lines and substations ranging from 10kV to 220kV.
Key points for installing the DB-16110-170 Adjusting plate
Bolt securement
Typically, use M16×40 bolts, torque 193.6-264 N·m. Double nuts are used to prevent loosening and avoid stress concentration.
01
Alignment
The longitudinal centerline of the connection plate should deviate ≤5° from the line direction, and the horizontal centerline should be perpendicular to the insulator string. The installation hole position deviation should be ≤1mm.
02
Conductive paste application
After cleaning the contact surface, evenly apply conductive paste to a thickness of 0.5-1mm to ensure that the contact resistance meets the standard.
03
Regular inspection
Crack inspection every three years, and load sampling inspection every five years. Inspection intervals can be shortened for use in harsh environments.
04
What is the difference between the DB-16110-170 Adjusting plate and the DB-12100-240 adjustment plate?
The DB-16110-170 Adjusting Plate
With a breaking load of 170 kN, it is suitable for conventional conductors on lines up to 220 kV. Made of Q345B steel, it is primarily suitable for ambient temperature environments. Its 8mm thickness emphasizes lightweight construction. It has a total length of 1610 mm and features 16 bolts for ±50 mm fine adjustment. Its hot-dip galvanizing layer has a thickness of ≥86 μm and is salt spray tested for ≥720 hours.
The DB-12100-240 Adjusting Plate
With a breaking load of 240 kN, it is suitable for tension adjustment of UHV lines and large-section conductors. Made of Q345B low-alloy steel, it meets the requirements of extremely cold environments. Its 10mm thickness improves bending strength. It has a total length of 1610 mm and features 12 bolts for ±50 mm linear adjustment. Its hot-dip galvanizing layer has a thickness of ≥86 μm and is salt spray tested for ≥1000 hours.
The DB-16110-170 Adjusting plate is primarily used for tension adjustment and load distribution in high-voltage transmission lines. With a breaking load of 170 kN, it is suitable for lines of 220 kV and above. Its adjustment range is ±50 mm, and fine adjustment is achieved through M16 bolt holes.
The DB-16110-170 Adjusting plate is primarily used for tension adjustment and load distribution in high-voltage transmission lines. With a breaking load of 170 kN, it is suitable for lines of 220 kV and above. Its adjustment range is ±50 mm, and fine adjustment is achieved through M16 bolt holes. This allows for precise adjustment to compensate for tension caused by thermal expansion and contraction of insulator strings or conductors, as well as installation errors. The DB-16110-170 Adjusting plate is approximately 1610 mm long, 30 mm wide, and 8 mm thick. It can absorb 0.3g acceleration earthquake shocks and is suitable for use in seismic zones with a magnitude of 8 or higher.
This information will help you determine which adjustment plate model to choose for your specific environment, ensuring it performs optimally. During use, the DB-16110-170 Adjusting plate focuses more on basic performance. Its long size and fine adjustment are its advantages. When choosing, users should still choose according to actual conditions, such as voltage level, ambient temperature, ice thickness, etc. During use, it is necessary to strictly follow the installation and operation and maintenance specifications to ensure the long-term stable operation of the adjustment plate.
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