Introduction to Electrical Engineering

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Pro: ČEKO IMPORT a.s.
Vydal: České vysoké učení technické Praha Autor: Vladimír Kůla, Michal Kříž

Strana 11 z 112

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And manufacturing products assembling equipment that not safe may endanger the purchaser. Most products electrical engineering are used persons.1.g. is impossible for any standard represent full set technical requirements for the given type of product, equipment, installation. Present-day technology well present-day equipment and products the field the electrical engineering are complicated that keeping the safety rules very difficult, therefore these rules are comprehended technical standards. That just the violation law, which can penalized. Let investigate such systems. One the basic legal rules prescribed many laws the rule prescribing that nobody shall endanger anybody. . prevent the danger means fulfill respective requirements the respective standard. The described rules for the technical performance products (e. The utilization is connected with danger harmful effects electrical current persons and, may be, to livestock. machines, appliances, and devices) mounted parts, and for technological procedures are given technical standards. The rules safety for groups products are given group safety standards. Technical standards are not obligatory the way legal rules but the fulfillment the requirements technical standard can prevent from many difficulties connected with legal rules. Technical standards are not papers brochures independent one the other. BASIC ELECTROTECHNICAL STANDARDS 2.BASIC ELECTROTECHNICAL STANDARDS 12 2. Technical standards form huge, more less compact systems. Nowadays, technical products are complicated that technical requirements for one type equipment, device, appliance, installation cannot be comprehended one standard only. The standard respective for given product does not repeat all safety requirements but only refers basic group safety standards. Nevertheless, the standard applied for the product cannot prescribe all measures that could should done. The conception safety electrical engineering given basic safety standards. General In the technical sphere, the legal rules obligatory given laws, acts, notices, orders, regulations and directives cannot prescribe the detailed technical performance equipment, installation appliance fulfill the concepts safety, reliability, and maintainability. the producer keeps relevant standards, can almost sure that his products will not endanger any customer. Such systems are formed electrical engineering well. Moreover in case that product complying with the relevant standard causes damage, the position the producer much better than the position that one whose product does not comply with the standard