Larger pin insulators are threaded to fit what size inch pins?

Larger pin insulators are specifically designed to fit the 1 3/8 inch pins. This size is commonly used in electrical distribution systems where larger insulators are needed to support higher voltages and provide better insulation. The threading on these insulators is precisely engineered to ensure a secure fit on the 1 3/8 inch pin, which helps prevent slippage and ensures the stability of the electrical equipment.

Additionally, the design and dimensions of pin insulators play a critical role in their performance in outdoor environments, where they must withstand various weather conditions and mechanical stresses. Insulators that fit different-sized pins do not provide the same level of stability or reliability. Hence, using the correctly sized pin—1 3/8 inch in this case—ensures optimal performance and safety in the electrical system.