![]() ![]() ![]() Subclause 2.5 gives equations and examples for the calculation of the positive-, the negative- and the zero-sequence impedances and reduction factors for high-, medium and low-voltage cables with sheaths and shields earthed at both ends. The significant technical changes with respect to the previous edition are as follows: This second edition cancels and replaces the first edition published in 1992 and constitutes a technical revision. For overhead lines and cables the electrical data may in some cases also be calculated from the physical dimensions and the material following the equations given in this report. The collected data and their evaluation may be used for medium- or high-voltage planning purposes and also for comparison with data given by manufacturers or electricity suppliers. It may be applied for calculating short-circuit currents in low-voltage networks if they are in accordance with typical equipment employed in the user's country. IEC 60909-2:2008(E) comprises data of electrical equipment collected from different countries to be used when necessary for the calculation of short-circuit currents in accordance with IEC 60909-0.
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The book retains its strong emphasis on modern technology, with many changes in the lighting design and sound design chapters, reflecting the latest practices. Vibrant color production photographs support the text and spotlight examples of contemporary work. ![]() Completely current, the exciting new tenth edition has two new chapters on digital integration in scene design and lighting design (Chapters 12 and 13), a new chapter on getting work in the profession (Chapter 28), and mirrors the best of real-world practices. Now in full color and packed with professional information and cutting-edge technologies, SCENE DESIGN AND STAGE LIGHTING, Tenth Edition, equips you with the most up-to-date coverage available on scenery, lighting, sound, and technology. |
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