The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States.It is part of the National Fire Codes series published by the National Fire Protection Association (NFPA), a private trade association.Despite the use of the term "national", it is not a federal law.It is typically adopted by states and municipalities in an effort to standardize their enforcement of safe electrical practices.In some cases, the NEC is amended, altered and may even be rejected in lieu of regional regulations as voted on by local governing bodies. The "authority having jurisdiction" inspects for compliance with these minimum standards.Źródło: https://en.wikipedia.org/wiki/National_Electrical_Code
Also during the construction electrician with his team in control of the electrical installation of the network, because only authorized persons may perform such work.It is very important to install the appropriate wiring to the building during the operation met its functions. Therefore, this electrician is responsible for the oversight of electricity on site and very often his help is invaluable, because it allows the reception of installations, without which the building does not meet the required functions.
Electrical contractors employ workers in many capacities, determined by their level of training and experience.Some common jobs include: Apprentice Electrician ? Receives on-the-job training and classroom instruction from licensed journeymen or master electricians about how to install, modify, repair, and maintain power and lighting systems.
Monitors progress to meet project deadlines.
Submits required reports and forms.Źródło: https://en.wikipedia.org/wiki/Electrical_contractor.