TY  - JOUR
A1  - Kern, Alexander
A1  - Wiesinger, J.
A1  - Zischank, Wolfgang J.
T1  - Calculation of the longitudinal voltage along metal tubes caused by lightning currents and protection measures
JF  - Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30 1991
Y1  - 1991
N1  - International Symposium on High Voltage Engineering <7, 1991, Dresden>
PB  - Techn. Univ.
CY  - Dresden
ER  - 
TY  - JOUR
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Wiesinger, J.
A1  - Metwally, I.
A1  - Kern, Alexander
A1  - Seevers, M.
T1  - Laboratory simulation of direct lightning strokes to a modeled building : measurement of magnetic fields and included voltages
JF  - Journal of electrostatics. 60 (2004), H. 2 - 4
Y1  - 2004
SN  - 0304-3886
N1  - ISSN der E-Ausg.: 0304-3886
SP  - 223
EP  - 232
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Lang, U.
A1  - Wiesinger, J.
A1  - Zischank, Wolfgang J.
T1  - The longitudinal voltage of cable tubes with a screening mesh caused by partial lightning currents
JF  - Proceedings / Sixth International Symposium on High Voltage Engineering : 28. August - 1. September, 1989, Westin Canal Place Hotel, New Orleans, Louisiana, USA
Y1  - 1989
N1  - International Symposium on High Voltage Engineering <6, 1989, New Orleans, La.>
PB  - Mississippi State University
CY  - Mississippi State, Miss.
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Hasse, P.
A1  - Wiesinger, J.
A1  - Zischank, Wolfgang J.
T1  - Aktuelles aus der Blitzforschung
JF  - ETZ : Elektrotechnik + Automation. 112 (1991), H. 1
Y1  - 1991
SN  - 0170-1711
N1  - 2. ISSN: 0948-7387
ER  - 
TY  - CHAP
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Wiesinger, J.
A1  - Stimper, K.
A1  - Kern, Alexander
A1  - Seevers, M.
T1  - Magnetic Fields and Induced Voltages inside LPZ 1 Measured at a 1:6 Scale Model Building
N2  - Laborexperimente zu Blitzschutzzonen in Stahlbetongebäuden anhand eines Modells im Maßstab 1:6
N2  - For the application of the concept of Lightning Protection Zones (LPZ), the knowledge of the magnetic fields and induced voltages inside a structure is necessary. Laboratory experiments have been conducted at a downscaled model of a building (scale factor 1:6) to determine these electromagnetic quantities in case of a direct strike to the structure. The model (3 m x 2 m x 2 m) represented a small industrial building using the reinforcement of the concrete as electromagnetic shield. The magnetic fields and magnetic field derivatives were measured at several location inside the scaled model. Further, the voltages induced on three typical cable routes inside the model was determined. The influence of the lightning current waveshape, point-of-strike, bonding of the cable routes, and bridging of an expansion joint in the middle of the building on these quantities was studied.
KW  - Blitzschlag
KW  - Elektromagnetischer Schutzschild
KW  - Stahlbeton
KW  - Maßstabsgetreues Modell
KW  - Lightning
KW  - electromagnetic shielding
KW  - reinforced concrete
KW  - scaled model
Y1  - 2004
ER  - 
TY  - CHAP
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Kern, Alexander
A1  - Metwally, I. A.
A1  - Wiesinger, J.
A1  - Seevers, M.
T1  - Laboratory simulation of direct lightning strokes to a modelled building - measurement of magnetic fields and induced voltages
N2  - 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.
KW  - Direkter Blitzschlag
KW  - Elektromagnetischer Schutzschild
KW  - Magnetische Felder
KW  - Induzierte Spannungen
KW  - Stahlbetonkonstruktion
KW  - Lightning
KW  - electromagnetic shielding
KW  - magnetic field
KW  - reinforced concrete
KW  - induced voltage
Y1  - 2002
ER  -