Screw-in fuses are more properly called what?

• A. Tessler-type fuses
• B. Westinghouse fuses
• C. Edison base fuses
• D. Glass fuses

Answer: (C)

Screw-in fuses are properly referred to as Edison base fuses due to their design and historical significance. The term "Edison base" originates from the design used by Thomas Edison, which has become a standard type of electrical fuse configuration. These fuses are characterized by a threaded metal base that allows them to be screwed into a socket, making them easy to install and replace.

Edison base fuses are typically used in residential wiring for their practicality and compatibility with existing electrical systems. This type of fuse is designed for easy operation and provides a reliable means of overcurrent protection in households. Understanding the correct terminology helps in identifying and discussing electrical components accurately in residential electrical inspections.