Cara Memperkecil Ukuran File Pdf Untuk Email Login. Steve Mcconnell Rapid Development Ebook Pdf Gratuit on this page. C ose X Home Improvement do it yourself electrician general contractor handyman plumber renovation roofer Electricians were originally people who demonstrated or studied the principles of electricity, often electrostatic generators of one form or another. In the United States, electricians are divided into two primary categories: linemen, who work on electric utility company distribution systems at higher voltages, and wiremen, who work with the lower voltages utilized inside buildings. Wiremen are generally trained in one of five primary specialties: commercial, residential, light industrial, industrial, and low-voltage wiring, more commonly known as Voice-Data-Video, or VDV. Other subspecialties such as control wiring and fire-alarm may be performed by specialists trained in the devices being installed, or by inside wiremen. Electricians are trained to one of three levels: Apprentice, Journeyman, and Master Electrician.
In the US and Canada, apprentices work and receive a reduced compensation while learning their trade. They generally take several hundred hours of classroom instruction and are contracted to follow apprenticeship standards for a period of between three and six years, during which time they are paid as a percentage of the Journeyman's pay.
Aoi Teshima Collection Blue Rare here. Journeymen are electricians who have completed their Apprenticeship and who have been found by the local, State, or National licensing body to be competent in the electrical trade. Master Electricians have performed well in the trade for a period of time, often seven to ten years, and have passed an exam to demonstrate superior knowledge of the National Electrical Code, or NEC. Service electricians are tasked to respond to requests for isolated repairs and upgrades.