Engineering Control Methods for Electrical Contact Accidents and its Shocks: Review

Abstract

In the present review, we discussed Electrical accidents, Long before the knowledge of electricity, people were aware of the shocks caused by the electric fish, and the texts left by the ancient Egyptians, dating back to the year 2750 BC, referred to these fish as the "Thunderbolt of the Nile", as they described it as the protector of all other fish. . About a thousand years later, it was also referred to by the Greeks, Romans, naturalists, and Muslim physicians. Ancient writers, such as Pliny the Elder and Scribonius Largus, emphasized the numbness caused by electric shocks by stun catfish and electric eels. These writers also discovered that these shocks can be transmitted through conductive objects. In any case, the earliest and earliest method of discovering the nature of lightning and electricity from any other source is attributed to the Arabs who used the Arabic word "thunder" for thunder before the fifteenth century. It was known in the ancient cultures of the countries bordering the Mediterranean that certain objects, such as amber rods, could be rubbed with a cat's fur, attracting light objects such as feathers. The Greek scientist and philosopher, Thales of Malta, around 600 BC recorded a set of observations relating to static electricity. After these observations, he concluded that friction turns amber into a magnetic substance. Conversely, minerals such as magnetite, known as magnetite, do not need friction to become magnetic. However, Thales was wrong in his belief that the cause of attraction is the magnetic effect, as scientific research later proved the existence of a relationship between magnetism and electricity. According to one controversial theory, the Parthians, a people of Persia, knew electroplating according to information obtained from the discovery of the Baghdad battery in 1936. Although this battery resembles a galvanic cell, it is uncertain whether it is of an electrical nature or not.