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Electricity has been generated in power stations since 1882. Due to increased efficiency, world energy consumption was cut down by 1.5% in 2009, for the first time since World War II. The continuous increase in efficiency will result in less electricity needed for a given demand of electrical power. But since the demand will continue to grow (mostly because of the electrification of heating and transportation and the growing economies in developing countries), the world energy consumption is …

Arc flash concerns were first published in 1982 in Ralph Lee's paper “The Other Electrical Hazard: Electric Arc Blast Burns.” Arc flash hazards were not formally studied until 1993, which is why they are still the least understood electrical hazard existing in most industries. Wikipedia defines arc flash as "the light and heat produced from an electric arc supplied with sufficient electrical energy to cause substantial damage, harm, fire, or injury." Because arc flash temperature can reach …