Wednesday, January 24th 2018, 11:15:13 AM. Electrical Wiring. Posted by Manon Marianne
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Ladder Wiring Diagram (+90 Wiring Diagrams)
Electrical codes began in the 1880’s at the same time the first extensive wiring was being done. In 1897, the National Fire Protection Association established the National Electric Code (NEC). The National Fire Protection Association was a group of Insurance companies that were concerned about the potential danger inherent in faulty electrical wiring. They had cause for concern. Early wire was bare or covered with cloth. There was little understanding of the need for insulation.
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