Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-372 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Zischank, Wolfgang J., ; Heidler, Fridolin, ; Wiesinger, J. [u.a.], Shielding effectiveness of reinforced concrete cable ducts carrying partial lightning currents Birmingham 1998 Conference proceedings : 14th - 18th September 1998, [Burlington Hotel, Birmingham, United Kingdom] / organised by: School of Engineering and Advanced Technology, Staffordshire University, United Kingdom International Conference on Lightning Protection <24, 1998, Birmingham> ; School of Engineering and Advanced Technology ; ICLP <4, 1998, Birmingham> Fachbereich Energietechnik OPUS4-375 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Zischank, Wolfgang J., Längsspannung an blitzstromdurchflossenen Schirmkabeln - Einfluß paralleler Entlastungsleitungen 1993 Elektrie : wissenschaftlich-technische Zeitschrift der Elektrotechnik. 47 (1993), H. 6 0013-5399 2. ISSN: 0013-5400 Fachbereich Energietechnik OPUS4-377 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Zischank, Wolfgang J., The effect of parallel wires on the longitudinal voltage drop along shielded cables Berlin [u.a.] VDE-Verl. 1992 570 S : Ill., graph. Darst., Kt. Conference proceedings : 21st International Conference on Lightning Protection, Berlin Congress Center (BCC) Germany, September 22 - 25, 1992 = 21. Internationale Blitzschutzkonferenz / [proceedings ed. staff: J. Pilling ...] 3-8007-1885-5 International Conference on Lightning Protection <21, 1992, Berlin> ; ICLP <21, 1992, Berlin> Fachbereich Energietechnik OPUS4-378 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Wiesinger, J., ; Zischank, Wolfgang J., Calculation of the longitudinal voltage along metal tubes caused by lightning currents and protection measures Dresden Techn. Univ. 1991 Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30 1991 International Symposium on High Voltage Engineering <7, 1991, Dresden> Fachbereich Energietechnik OPUS4-368 Wissenschaftlicher Artikel Zischank, Wolfgang J., ; Heidler, Fridolin, ; Wiesinger, J., ; Metwally, I., ; Kern, Alexander, a.kern@fh-aachen.de; Seevers, M., Laboratory simulation of direct lightning strokes to a modeled building : measurement of magnetic fields and included voltages 2004 9 Journal of electrostatics. 60 (2004), H. 2 - 4 0304-3886 ISSN der E-Ausg.: 0304-3886 223 232 campus http://dx.doi.org/10.1016/j.elstat.2004.01.011 Fachbereich Energietechnik OPUS4-369 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Heidler, Fridolin, ; Zischank, Wolfgang J., ; Frentzel, Ralf, Lightning current distribution and coupling to control cables in power plants or large industrial facilites 2002 International Conference on Grounding and Earthing <2002, Rio de Janeiro> Fachbereich Energietechnik OPUS4-382 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Lang, U., ; Wiesinger, J., ; Zischank, Wolfgang J., The longitudinal voltage of cable tubes with a screening mesh caused by partial lightning currents Mississippi State, Miss. Mississippi State University 1989 Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA International Symposium on High Voltage Engineering <6, 1989, New Orleans, La.> Fachbereich Energietechnik OPUS4-383 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Zischank, Wolfgang J., Melting effects on metal sheets and air termination wires caused by direct lightning strikes Wien Eigenverl. des ÖVE 1988 Conference proceedings : Graz, Österreich, 25. - 29. April 1988 / Gesamtorganisation: Österr. Verb. für Elektrotechnik (ÖVE), Fachausschuß Blitzschutz ... [Red.: G. Diendorfer ...] 3-85133-001-3 International Conference on Lightning Protection >19, 1988, Graz> ; ICLP <19, 1988, Graz> ; Österreichischer Verband für Elektrotechnik / Fachausschuss Blitzschutz Fachbereich Energietechnik OPUS4-384 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Hasse, P., ; Wiesinger, J., ; Zischank, Wolfgang J., Aktuelles aus der Blitzforschung 1991 ETZ : Elektrotechnik + Automation. 112 (1991), H. 1 0170-1711 2. ISSN: 0948-7387 Fachbereich Energietechnik OPUS4-385 Wissenschaftlicher Artikel Kern, Alexander, a.kern@fh-aachen.de; Heidler, Fridolin, ; Zahlmann, P., ; Zischank, Wolfgang J., Blitzschutz 1993 ETZ : Elektrotechnik + Automation. 114 (1993), H. 2 0170-1711 2. ISSN: 0948-7387 Fachbereich Energietechnik OPUS4-14 Konferenzveröffentlichung Zischank, Wolfgang J., ; Kern, Alexander, a.kern@fh-aachen.de; Frentzel, Ralf, ; Heidler, Fridolin, ; Seevers, M., Assessment of the lightning transient coupling to control cables interconnecting structures in large industrial facilities and power plants Large industrial facilities and power plants often require a huge number fo information and control cables between the differnet structures. These I&C-cables can be routed in reinforced concrete cable ducts or in isolated buried cable runs. KTA 2206 is the German lightning protection standard for nuclear power plants. During the last several years considerable effort has been made to revise this standard. Despite the well established principles and design guidelines for the construction of the lightning protection system, this standard puts special emphasis on the coupling of transient overvoltages to I&C-cables. 2000 Fachbereich Energietechnik OPUS4-2 Konferenzveröffentlichung Kern, Alexander, a.kern@fh-aachen.de; Heidler, Fridolin, ; Seevers, M., ; Zischank, Wolfgang J., Magnetic Fields and Induced Voltages in case of a Direct Strike - Comparison of Results obtained from Measurements at a Scaled Building to those of IEC 62305-4 In the paper the results obtained from experiments at a modelled reinforced building in case of a direct lightning strike are compared with calculations. The comparison includes peak values of the magnetic field Hmax, its derivative (dH/dt)max and of induced voltages umax in typical cable routings. The experiments are performed at a 1:6 scaled building and the results are extrapolated using the similarity relations theory. The calculations are based on the approximate formulae given in IEC 62305-4 and have to be supplemented by a rough estimation of the additional shielding effect of a second reinforcement layer. The comparison shows, that the measured peak values of the magnetic field and its derivative are mostly lower than the calculated. The induced voltages are in good agreement. Hence, calculations of the induced voltages based on IEC 62305-4 are a good method for lightning protection studies of buildings, where the reinforcement is used as a grid-like electromagnetic shield. 2004 0304-3886 Journal of electrostatics: Beitr. auf S. 379 - 385. doi:10.1016/j.elstat.2006.09.004 Fachbereich Energietechnik OPUS4-3 Konferenzveröffentlichung Zischank, Wolfgang J., ; Heidler, Fridolin, ; Wiesinger, J., ; Stimper, K., ; Kern, Alexander, a.kern@fh-aachen.de; Seevers, M., Magnetic Fields and Induced Voltages inside LPZ 1 Measured at a 1:6 Scale Model Building Laborexperimente zu Blitzschutzzonen in Stahlbetongebäuden anhand eines Modells im Maßstab 1:6 2004 Fachbereich Energietechnik OPUS4-10 Konferenzveröffentlichung Zischank, Wolfgang J., ; Heidler, Fridolin, ; Kern, Alexander, a.kern@fh-aachen.de; Metwally, I. A., ; Wiesinger, J., ; Seevers, M., Laboratory simulation of direct lightning strokes to a modelled building - measurement of magnetic fields and induced voltages In IEC 61312-2 equations for the assessment of the magnetic fields inside structures due to a direct lightning strike are given. These equations are based on computer simulations for shields consisting of a single-layer steel grid of a given mesh width. Real constructions, however, contain at least two layers of reinforcement steel grids. The objective of this study was to experimentally determine the additional shielding effectiveness of a second reinforcement layer compared to a single-layer grid. To this end, simulated structures were set up in the high current laboratory. The structures consisted of cubic cages of 2 m side length with one or with two reinforcement grids, respectively. The structures were exposed to direct lightning currents representing the variety of anticipated lightning current waveforms. The magnetic fields and their derivatives at several positions inside the structure as well as the voltage between "floor" and "roof" in the center were determined for different current injection points. From these data the improvement of the shielding caused by a second reinforcement layer is derived. 2002 Fachbereich Energietechnik