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close this bookGeneration, Distribution, Use of Electric Current - Basic vocational knowledge (Institut für Berufliche Entwicklung, 141 p.)
View the document(introduction...)
View the documentPreface
View the document1. Introduction
View the document2. General remarks on the demand for electric energy and on the natural resources available
close this folder3. Ways of generation of electric energy
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View the document3.1. Water power stations
View the document3.2. Climatological power stations
View the document3.3. Thermal power stations
close this folder4. Power transmission and distribution in power supply systems
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View the document4.1. Types of networks
View the document4.2. International networks
close this folder4.3. Common voltage levels in the flow of electric energy
View the document4.3.1. The importance of the voltage
View the document4.3.2. Voltage levels of the elec-trotechnical networks
close this folder4.4. The importance of the electric current as dimensioning criterion for all transmission elements
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View the document4.4.1. Operating current
View the document4.4.2. Short-circuit current
View the document4.4.3. Environment
View the document4.5. Common technical terms in the field of transmission and distribution
close this folder4.6. Lines and cables as transmission and distribution elements
View the document4.6.1. Basic terms
View the document4.6.2. Lines for heavy-current installations
View the document4.6.3. Power cables
close this folder4.7. Switching and distributing plants and accessories for the transmission and distribution of electric energy
View the document4.7.1. Switching and distributing plants
View the document4.7.2. Switches
View the document4.7.3. Accessories
View the document4.7.4. Insulating material (insulators)
close this folder4.8. Laying of lines and cables
View the document4.8.1. General
View the document4.8.2. Laying of lines
View the document4.8.3. Laying of cables
View the document4.8.4. Electric connections
close this folder5. Lighting installations and power installations
View the document5.1. General
View the document5.2. Classification
View the document5.3. Installation types and systems
View the document5.4. Installation technology
View the document5.5. Cost/benefit and environmental considerations in the technological preparation of electrical installations
View the document6. The use of electric current by the various groups of consumers (assignment)
close this folder7. Measuring technology of checking electrotechnical installations and equipment and of permanently controlling the main parameters in operation (I, U, P, Wh, Q, )
close this folder7.1. Measuring and testing methods applied before and during the installation
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View the document7.1.1. Visual inspection
View the document7.1.2. A.C. voltage testing
View the document7.1.3. Lightning-stroke voltage testing
View the document7.1.4. Measuring of the insulation resistance
View the document7.1.5. Testing of single parts of installations, such as cables, for their insulating property
close this folder7.2. Measuring and testing methods during operation
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View the document7.2.1. Testing methods (examples)
View the document7.2.2. Measuring methods
close this folder8. Protective, control and supervisory systems as important additional equipment for power installations
View the document8.1. General
View the document8.2. Primary protective elements against overvoltage
View the document8.3. Primary protective elements against overcurrent
View the document8.4. Secondary protective elements