Power fittings are metal accessories used to connect and assemble various devices in power systems, transmitting mechanical and electrical loads and providing protection. They are indispensable in power grid construction.
All power fittings must comply with national standards (such as GB/T 2314-2008, GB/T 2317.1-2008, etc.), and their core indicators include:
• Mechanical strength: Able to withstand the maximum tensile, compressive, and bending loads required by the design.
• Electrical performance: Low contact resistance, meeting current-carrying requirements, and able to control corona and radio interference.
• Corrosion resistance: Typically treated with processes such as hot-dip galvanizing to adapt to harsh outdoor environments.
• Grip strength: The grip strength on the conductor must be greater than a specific proportion of the rated breaking force to ensure no slippage.
