The NEC (National Electrical Code) standards also referred to as NFPA 70 is an adoptable standard implemented regionally in the United States for the safe installation of electrical equipment and wiring. The standard is developed by the National Fire Protection Association (NFPA) as part of the series of standards it publishes known as the National Fire Codes. The NFPA is a global non-profit trade association founded in 1896 and is dedicated to preventing injury, death, property damage and economic losses due to electrical hazards, fire, and other related hazards. The organization delivers knowledge and information via the more than ...
Essays on Electrical Wiring
2 samples on this topic
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Material extraction
The mining and extraction of copper has several impacts on the environment. The extraction of copper is done in several steps and process using different technologies and mechanisms. The copper element is extracted from its ore through heating the ore using carbon. This process releases carbon dioxide gas into the atmosphere. It is a well known fact that carbon dioxide gas is a greenhouse gas which result into global warming. The result of the extraction is copper full of impurities. The impure copper is then placed under further treatment to eliminate the presence of the impurities. In most cases, ...