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Learning electrician
Technical profile electrician certainly is much less likely to be selected than other specialties, such as construction. This is because the vocational subjects, where young people learn from this direction are much more difficult, since they concern the often incomprehensible for youth affairs physical and mechanical properties. However, anyone interested in this field and who want to learn a profession electrician certainly can handle, if studied systematically. Completion of such a school is crowned with theoretical and practical exam, which entitles you to perform electrical services, such as installation and repair of the system.
Fear of contact with the flow
Why do many people use the services of electricity while performing even simple repairs or replacement of components of electrical installations? This question can be answered in a very simple way - a lot of people afraid of any contact with the flow, because it can be extremely dangerous not only for health, but also for human life. Commonly known cases in which the electrician while performing their work was seriously injured and even died as a result of contact with electricity. On the other hand, many electricians have daily contact with electrical installations retains fewer and fewer safety work and then can easily lead to tragedy.
Electrical wiring - risks and their prevention
Wiring safety codes are intended to protect people and property from electrical shock and fire hazards. Regulations may be established by city, county, provincial/state or national legislation, usually by adopting a model code (with or without local amendments) produced by a technical standards-setting organisation, or by a national standard electrical code.
Electrical codes arose in the 1880s with the commercial introduction of electrical power. Many conflicting standards existed for the selection of wire sizes and other design rules for electrical installations.
The first electrical codes in the United States originated in New York in 1881 to regulate installations of electric lighting. Since 1897 the US National Fire Protection Association, a private non-profit association formed by insurance companies, has published the National Electrical Code (NEC). States, counties or cities often include the NEC in their local building codes by reference along with local differences. The NEC is modified every three years. It is a consensus code considering suggestions from interested parties. The proposals are studied by committees of engineers, tradesmen, manufacturer representatives, fire fighters and other invitees.
Źródło: https://en.wikipedia.org/wiki/Electrical_wiring