PT type adjusting plate are widely used in power transmission networks worldwide. For 100kV distribution networks to 500kV UHV lines, they provide stable connections. In use, they are connected in series with insulator strings or installed on tension suspension towers to prevent construction deviations. They are very easy to use, and adjustments improve construction efficiency and reduce the risk of rework due to errors. Their corrosion resistance ensures long-term use.
Since PT type adjusting plate are mainly used for adjustment, what is their adjustment accuracy? Accuracy is closely related to the thread structure. Professional manufacturers use thread grinding technology to ensure an accuracy of grade 5-6 and a surface roughness of 0.08-1.25 micrometers. High-precision thread machining ensures smooth bolt movement during adjustment and a securely fixed position after adjustment, ensuring the accuracy of the entire adjustment process.
During production, the specifications of PT type adjusting plate strictly adhere to international standards and comply with core specifications of the power industry. Specific parameters and specifications are as follows:
| model | Rated breaking load (kN) | Compatible voltage levels | Adjustment range (mm) | Total length (mm) | Aperture (mm) | Material |
| PT-7 | 70 | 100kV-220kV | ±30 | 280±5 | 18 | Q235B/35# steel |
| PT-10 | 100 | 100kV-220kV | ±40 | 320±5 | 22 | Q235B/35# steel |
| PT-16 | 160 | 220kV-330kV | ±50 | 380±5 | 26 | 35# steel / 45# steel |
| PT-20 | 200 | 220kV-500kV | ±60 | 420±5 | 30 | 35# steel / 45# steel |
| PT-30 | 300 | 330kV-500kV | ±80 | 500±5 | 39 | 45# steel / alloy structural steel |
| PT-40 | 400 | 500kV UHV | ±100 | 580±5 | 45 | Alloy structural steel |
After the PT type adjusting plate is manufactured, it needs to be transported to the user as quickly as possible. Therefore, we need to provide diversified transportation solutions based on the user's needs, order quantity, destination, etc., to ensure the safe delivery of goods.
International Express
It is mainly suitable for small quantity orders of ≤50 pieces, or for choosing express delivery when shipping samples. The delivery is fast and the whole process is traceable, which can be said to be very convenient and efficient.
air transport
For medium-volume orders of 50-500 pieces, we can contact air freight for faster delivery to airports worldwide. If you require door-to-door delivery, we can combine it with express delivery.
Sea freight
Suitable for large-volume orders, with lower costs, supporting full container load (FCL) and less-than-container load (LCL) shipping, but with longer transit times. Manufacturers deliver goods to the port and complete customs procedures before shipping, which is also the most common mode of export shipping nowadays.
When manufacturing PT type adjusting plate, we adhere to the service philosophy of "customer first, cross-border without worries," providing professional, efficient, and comprehensive high-quality services to global customers. This can solve many problems encountered by users during operation, and the plates have the following characteristics:
Corrosion resistance
The surface is galvanized during production, ensuring a zinc layer thickness of ≥85μm and conforming to ISO 1461 standards. The finished product undergoes a salt spray test exceeding ≥1000 hours, making it suitable for use in complex outdoor environments with marine climates, high humidity, and high dust levels, ensuring long-term rust-free operation.
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Mechanical properties
To ensure long-term use, many users have strict requirements for its mechanical properties. Typically, the tensile strength is ≥470MPa, the yield strength is ≥235MPa, and the elongation is ≥21%. It will not loosen even after long-term use.
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Applicable Environment
It can operate in a very wide temperature range, typically from -40℃ to +80℃, and can withstand wind speeds ≤35m/s and ice thicknesses ≤20mm, thus it can be used in harsh weather conditions and is suitable for different power transmission lines;
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Customization supported
Communicate with users to understand their needs, including the appropriate voltage level, rated load, adjustment range, material requirements, and surface treatment methods, to ensure that the product matches the user's scenario.
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