166824-2

166824-2 is an international standard that defines the requirements for multi-purpose contacts used in high voltage power applications. The standard outlines the design requirements for contacts in order to ensure they meet the highest safety standards and provide reliable performance in operation. It also defines the testing requirements to ensure the contacts meet the requirements set forth in the standard.

The multi-purpose contact design is composed of several parts including contact fingers, busbars, springs, subassemblies, and other parts such as insulation materials and fasteners. The contact fingers, or steel blades, are the parts that come into direct contact with the conductor, or load, while busbars are used to secure the contact fingers in place. The springs are used to absorb and ensure the proper alignment of the contact fingers.

The 166824-2 standard outlines the design and performance requirements for these parts. The contact fingers are designed to retain their shape and stiffness and resist corrosion during operation. The springs used must be designed to provide a continuous and uniform contact force ensuring a good electrical contact between the contact fingers and the conductor. The fasteners must also be designed to ensure the contact fingers are tightly secured in place. The material used for the contact fingers must have good electrical and thermal conductive properties as well as resistance to corrosion.

The 166824-2 standard also outlines the testing requirements. The contact fingers, springs, and fasteners must all be tested to ensure they comply with the requirements laid out in the standard. The contact fingers must be tested for their electrical and thermal characteristics including electrical resistance, thermal resistance, response time, and other electrical properties. The springs must also be tested for their mechanical properties such as spring rate, shear strength, and deflection.

The 166824-2 application field and working principle provide a set of requirements for multi-purpose contacts used in high voltage power applications. The standard outlines the design and performance requirements for contact fingers, busbars, springs, and other parts. It also outlines the testing requirements for the contact fingers, springs, and fasteners. This ensures the contacts meet the highest safety standards and provide reliable performance in operation.