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Two simplified models for a large building are compared for their lightning protection properties, one without and one with interconnecting conductive elements. The dimension is 69 × 19 m. At frequencies below 2 MHz, the additional elements provide a skin-effect like protection of the building interior. The benefits of the interconnections at high frequencies are the suppression of resonances and...
The lightning protection of a pharmaceutical plant has been tested by current-injection on the structure. The study aims at two goals: 1) proof of safety by scaling the currents and voltage to lightning realistic values and 2) a comparison between measurements and a Method of Moments calculation. We measured the current distribution near the source and the induced currents and voltages in test cables...
A newly built pharmaceutical plant has been investigated by measurements. Currents of 0.3 kA were injected in the lightning protection grid on the roof. Inside the building, test cables of 100 m length followed a path typical for cables belonging to the installation. We measured induced cable currents and voltages. A reduced model of the building incorporated most of the designed current paths. Measurements...
The lightning protection of a pharmaceutical plant has been tested by current-injection on the structure. The study aims at two goals: 1) proof of safety by scaling the currents and voltage to lightning realistic values and 2) a comparison between measurements and a Method of Moments calculation. We measured the current distribution near the source and the induced currents and voltages in test cables...
The lightning protection of various industrial installations has been investigated by injecting current of smaller amplitudes. Large deviations of the intended current distribution and high values of induced voltages have been observed. Local measures can remedy the deficiencies.
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