ADTO GROUP METAL HARDWARE DIVISION

I. Cause Analysis According to investigations, the areas where overhead  lightning wires  have disconnected are predominantly located in regions with high wind forces. The two main reasons for disconnections caused by wear on suspended line clamps are: Relative Movement Due to Wind: The body of the suspended line clamp experiences relative motion with the hanging board due to wind forces, causing the hanging board to swing around the clamp's shaft at a small angle. Since the hanging board is relatively thin, this swinging action can create grooves, leading to a reduction in the cross-sectional area of the clamp's shaft. Once the grooves reach a certain depth, the weight of the lightning wire can cause the clamp's body to fall from the suspended line clamp, resulting in a disconnection and grounding incident. Improper Clamp Size or Insufficient Tightening: If the suspended line clamp is too large or the lightning wire is not tightly secured, relative motion can occur between...

  Suspension clamps   typically come in a standard design, and we have retained the U-bolt style (commonly known as boat-shaped clamps). These consist of a U-bolt bracket, a clamp body, and pressure plates made from ductile cast iron. Another type is the pre-stranded suspension clamp. Suspension clamps are used to secure conductors to the insulator strings on straight pole towers, or to hang lightning conductors on straight pole towers. They can also be used to support changeover conductors on changeover pole towers and to secure jumper wires on tension angle poles. These clamps are widely used in the domestic market due to their convenient and quick installation. Below are some details: Old-style Boat-shaped Clamp This type of clamp can be used for conductors and lightning conductors. It can withstand the installation load of conductors within vertical spans, and it must not slide or detach from the insulator string during normal operation or in the event of a line break. The...

Project Name:   Beijing National Stadium (Bird's Nest) Location:  Beijing, China Construction Company:  China State Construction Engineering Corporation Building Area:  258,000 square meters Completion Date:  2008 Project Background The Beijing National Stadium, known as the Bird's Nest, was built for the 2008 Beijing Olympic Games. As the main venue for the opening and closing ceremonies, it has become an iconic architectural landmark worldwide. Due to its complex steel structure design, the project required a high standard of bolts and nuts to ensure safety and stability. Applications of Bolts and Nuts Steel Structure Framework: The primary framework of the Bird's Nest utilizes a significant number of high-strength steel components. All connections between steel beams and columns are secured using high-strength bolts (such as M20 and M24 specifications). During construction, torque wrenches were used to check the torque at each connection point to ensure relia...

Project Name:   Sunshine New Energy Photovoltaic Power Generation Project Location:  Huai'an City, Jiangsu Province, China Construction Company:  Sunshine New Energy Co., Ltd. Total Installed Capacity:  50 MW (Megawatts) Completion Date:  June 2023 Project Background The Sunshine New Energy Photovoltaic Power Generation Project aims to respond to national policies supporting renewable energy and promote green economic development. Located in Huai'an City, this project harnesses abundant solar resources to establish a large-scale photovoltaic power station to meet the growing electricity demand. Applications of Photovoltaic Supports Support Structure Design: The photovoltaic supports are made of galvanized steel, offering excellent corrosion resistance and mechanical strength. The design considers wind and snow loads to ensure durability. The tilt angle of the supports is optimized to maximize sunlight capture and improve energy generation efficiency. Use of Bolt...

Project Name:   Southern Power Grid Smart Grid Upgrade Project Location:  Guangzhou City, Guangdong Province, China Construction Company:  Southern Power Grid Company Total Investment:  150 million RMB Completion Date:  September 2023 Project Background With rapid urbanization, Guangzhou City faces a growing electricity demand. To enhance the reliability and intelligence of the power supply, Southern Power Grid Company decided to undertake a comprehensive upgrade of the existing grid, building a smart grid system to improve the safety and efficiency of electricity delivery. Applications of Electrical Hardware Substation Equipment: High-strength bolts and nuts are used extensively to secure transformers, switches, and other equipment in the substations, ensuring stability and safety. All connection points utilize locking nuts to prevent loosening due to vibration or temperature changes. Cable Supports and Conduits: The project includes the installation of multipl...

In the world of mechanical connections, precision and reliability are paramount. One such component that embodies these principles is the   coupling nut , also known as a long nut. This specialized nut plays a critical role in various industries, such as plumbing, HVAC, and automotive, by providing secure and aligned connections between threaded components. What Is a Coupling Nut?   A coupling nut is a type of nut that features threaded openings on both ends. Its unique design includes one end with a right-hand thread and the opposite end with a left-hand thread. This dual-threaded configuration enables the coupling nut to connect two threaded components, such as pipes or rods, simultaneously. The ability to tighten and secure the connection from both ends renders the coupling nut an essential tool for many fastening applications.  Why Use a Coupling Nut?   The primary purpose of a coupling nut is to ensure a robust and stable connection between two threade...