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The radiant energy released by an electric arc is capable of permanently inuring or killing a human being at distances of up to ten or even twenty feet. Photo: TestGuy.
Numerous workers are injured and/or killed each year while working on energized electrical equipment.
Many of these workplace injuries are a result of arc flash, a type of electrical explosion that results from a low-impedance connection to ground or another voltage phase in an electrical power system.
When alternating current travels through an electrical conductor, like cable or bus, it develops a magnetic field at right angles to the flow of current. Photo: Wikimedia.
The principal function of a current transformer is to produce a manageable level of voltage and current, proportional to the current flowing through its primary winding, for the operation of measuring or protective devices.
First aid is emergency care provided for injury or sudden illness before emergency medical treatment is available. The first-aid provider in the workplace is someone who is trained in the delivery of initial medical emergency procedures, using a limited amount of equipment to perform a primary assessment and intervention while awaiting arrival of emergency medical service (EMS) personnel.
