Fuses Within Domestic Electrical Circuits - SimplifyDIY Types of fuses used in domestic electrics. The main fuse is installed on the incoming electricity supply by the Electricity Board and can only be accessed by them. It rarely blows as it has a high rating, but is there to prevent damage caused by any surges in supply, and to protect the electricity supplies to your neighbours in the even of a Fuse and Types of Fuses – Construction, Operation What Is A Fuse?Construction & Working of A FuseHow to Select Proper Rating Size of Fuse?Characteristics of A FuseClassification of FusesTypes of FusesResettable FusesUses and Applications of FusesA fuse is an electric / electronic or mechanical device, which is used to protect circuits from over current, overload and make sure the protection of the circuit. Electric fuse was invented by Thomas Alva Edison in 1890. There are many types of fuses, but function of all these fuses is same. In this article, we will discuss the different types of fuses, its construction, working & operation and their application in various electronics and electrical system. 1. Related Post: MCB (Miniature Ci..See more on electricaltechnology I need help understanding an old fuse box - houzz I have an old fuse box that blew a fuse and I am not sure how to replace it. It has a row of 4 edison screw type fuses. The middle 2 are red and say "time delay fuse 20Amp." The outter two are clear. Abbove this row of 4 fuses are two carriages side by side. The one on the left says "..