TY  - CHAP
A1  - Scheibe, K.
A1  - Kern, Alexander
T1  - Stand der Normung für Überspannungsschutzgeräte
T2  - 10. VDE, VBB-Blitzschutztagung : Vorträge der 10. VDE, ABB-Fachtagung vom 24. bis 25. Oktober 2013 in Neu-Ulm. (VDE-Fachbericht ; 70)
Y1  - 2013
SN  - 978-3-8007-3540-2
SP  - 23
EP  - 27
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Wetter, Martin
A1  - Kern, Alexander
T1  - Number of lightning strikes to tall structures - comparison of calculations and measurements using a modern lightning monitoring system
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
Y1  - 2014
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Schelthoff, Christof
A1  - Mathieu, Moritz
T1  - Calculation of interception efficiencies for mesh-type air-terminations according to IEC 62305-3 using a dynamic electro-geometrical model
T2  - International Conference on Lightning Protection (ICLP) : 2 - 7 Sept. 2012, Vienna
Y1  - 2012
SN  - 978-1-4673-1896-9 (E-Book) ; 978-1-4673-1898-3 (Print)
SP  - 1
EP  - 6
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Lo Piparo, G. B.
A1  - Kern, Alexander
A1  - Mazzetti, C.
T1  - Some masterpoints about risk due to lightning
T2  - International Conference on Lightning Protection (ICLP) : 2 - 7 Sept. 2012, Vienna
Y1  - 2012
SN  - 978-1-4673-1896-9 (E-Book) ; 978-1-4673-1898-3 (Print)
SP  - 1
EP  - 6
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Rousseau, Alain
A1  - Kern, Alexander
T1  - How to deal with environmental risk in IEC 62305-2
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
N2  - The 2nd edition of the lightning risk management
standard (IEC 62305-2) considers structures, which may
endanger environment. In these cases, the loss is not limited to
the structure itself, which is valid for usual structures. In the past
(Edition 1) this danger was simply taken into account by a special
hazard factor, multiplying the existing risk for the structure with
a number. Now, in the edition 2, we add to the risk for the
structure itself a “second risk” due to the losses outside the
structure. The losses outside can be treated independently from
what occurs inside. This is a major advantage to analyze the risk
for sensitive structures, like chemical plants, nuclear plants, or
structures containing explosives, etc. In this paper, the existing
procedure given by the European version EN 62305-2 Ed.2 is
further developed and applied to a few structures.
Y1  - 2014
SP  - 521
EP  - 527
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Braun, Christian
T1  - Risk management according to IEC 62305-2 edition 2: 2010–12 assessment of structures with a risk of explosion
T2  - 2014 International Conference on Lightning Protection (ICLP), Shanghai, China
N2  - Risk management for structures with a risk of explosion should be considered very carefully when performing a risk analysis according to IEC 62305-2. In contrast to the 2006 edition of the standard, the 2010 edition describes the topic “Structures with a risk of explosion” in more detail. Moreover, in Germany separate procedures and parameters are defined for the risk analysis of structures with a risk of explosion (Supplement 3 of the German DIN EN 62305-2 standard). This paper describes the contents and the relevant calculations of this Supplement 3, together with a numerical example.
Y1  - 2014
SP  - 1237
EP  - 1242
ER  - 
TY  - BOOK
A1  - Kern, Alexander
A1  - Wettingfeld, Jürgen
T1  - Blitzschutzsysteme 1 : allgemeine Grundsätze, Risikomanagement, Schutz von baulichen Anlagen und Personen ; Erläuterungen zu den Normen DIN EN 62305-1 (VDE 0185-305-1):2011-10, DIN EN 62305-2 (VDE 0185-305-2):2013-02, DIN EN 62305-3 (VDE 0185-305-3):2011-10. (VDE-Schriftenreihe Normen verständlich ; 44)
Y1  - 2014
SN  - 978-3-8007-3511-2
PB  - VDE-Verl.
CY  - Berlin [u.a.]
ER  - 
TY  - BOOK
A1  - Kern, Alexander
A1  - Wettingfeld, Jürgen
T1  - Blitzschutzsysteme 2 : Schutz für besondere bauliche Anlagen ; Schutz für elektrische und elektronische Systeme in baulichen Anlagen ; Erläuterungen zu den Normen DIN EN 62305-3 (VDE 0185-305-3):2011-10, DIN EN 62305-4 (VDE 0185-305-4):2011-10. (VDE-Schriftenreihe Normen verständlich ; 160)
Y1  - 2015
SN  - 978-3-8007-3653-9
PB  - VDE-Verl.
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Kern, Alexander
T1  - Blitz- und Überspannungsschutz von Kernkraftwerken - Nachweisführung der ausreichenden Sicherheit für leittechnische Einrichtungen auch bei Blitzeinschlägen mit extremen Parametern
JF  - Atw. International Journal for Nuclear Power
N2  - Für das Auftreten extremer Wetterereignisse werden für Kernkraftwerke Eintrittshäufigkeiten für nicht mehr beherrschbare Zustände von unter 10⁻⁴/a gefordert. Dies gilt auch für die Einwirkung von Blitzeinschlägen. Die bisherige Nachweisführung zu Blitz- und Überspannungsschutz eines KKW in Deutschland ist deterministisch. In diesem Bericht werden das Vorgehen für einen entsprechenden Nachweis für leittechnische Einrichtungen der Sicherheitstechnik von KKW, der zur geforderten Zielgröße der Eintrittshäufigkeit führt. Die Ergebnisse werden zusammenfassend bewertet.
Y1  - 2016
SN  - 1431-5254
VL  - 61
IS  - 8/9
SP  - 534
EP  - 543
PB  - Inforum
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Imani Vashiani, Anahita
A1  - Timmermanns, Tobias
T1  - Threat for human beings due to touch voltages and body currents caused by direct lightning strikes in case of non-isolated lightning protection systems using natural components
T2  - 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA)
N2  - For typical cases of non-isolated lightning protection systems (LPS) the impulse currents are investigated which may flow through a human body directly touching a structural part of the LPS. Based on a basic LPS model with conventional down-conductors especially the cases of external and internal steel columns and metal façades are considered and compared. Numerical simulations of the line quantities voltages and currents in the time domain are performed with an equivalent circuit of the entire LPS.
As a result it can be stated that by increasing the number of conventional down-conductors and external steel columns the threat for a human being can indeed be reduced, but not down to an acceptable limit. In case of internal steel columns used as natural down-conductors the threat can be reduced sufficiently, depending on the low-resistive connection of the steel columns to the lightning equipotential bonding or the earth termination system, resp. If a metal façade is used the threat for human beings touching is usually very low, if the façade is sufficiently interconnected and multiply connected to the lightning equipotential bonding or the earth termination system, resp.
KW  - Lightning protection system
KW  - down-conductor
KW  - steel columns
KW  - metal façade
KW  - touch voltage
Y1  - 2021
SN  - 978-1-6654-2346-5
U6  - https://doi.org/10.1109/ICLPandSIPDA54065.2021.9627465
N1  - 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA), 20-26 Sept. 2021, Colombo, Sri Lanka
PB  - IEEE
CY  - New York, NY
ER  -