Ochrana pred bleskom a prepätím

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Charakteristickou črtou súčasného sveta je technický pokrok vo všetkých oblastiach ľudskej činnosti. Medzi tie, ktoré dosiahli mimoriadny rozmach patrí nesporne aj elektrotechnika všeobecne a elektronika zvlášť. V rámci týchto technických disciplín môžeme konštatovať významné zmeny aj v zariadeniach na ochranu pred bleskom a prepätím. Dôkazom toho je aj táto kniha, doslova nabitá najnovšími odbornými poznatkami, ktorú predkladáme odbornej verejnosti.

Autor: Michal Ingeli

Strana 140 z 257

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86E-07 0.00E+00 2.56E-07 O.08E-05 IEC Risk Assessment Calculator: Version 1.4 Výstup SIRAC bytový dom zberné plochy, zložky rizika .0.OOE+OO Type Loss Essentia! Public Services: RB2 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the structure RC2 risk electrical electronic equipment failure due overvoltage from direct strike the structure RM2 risk electrical electronic equipment failure due overvoltage from indirect strike the structure RV2 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the service lines RW2 risk electrical electronic equipment failure due overvoltage from direct strike the service lines RZ2 risk electrical electronic equipment failure due overvoltage from indirect strike the service lines oopopo oooooo oooooo mmmmmm ++++++ oooooo oooooo Type Loss Cultural Heritage: RB3 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the structure RV3 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the service lines 0.28E-08 4.43E-05 0.00E+00 2.52E-06 4. All rights reserved.OOE+OO 0. The IEC lightning risk assessment calculator intended assist the analysis various criteria determine the risk loss due lightning. not possible cover each special design element that may render structure more less susceptible lightning damage.00E+00 1.0.86E-09 2.NORME I INTERNATIONALE CEI IEC ■ INTERNATIONAL STANDARD 62305-2 Edition-1 2005-01 Project: NITRA 153 B Results for collection areas and frequencies: Ad collection area direct strikes the structure Nd expected annual number direct strikes the structure 15 186 m2 0,023 flashes/year Am collection area structure influenced induced overvoltages from indirect strikes Nm expected annual number strikes direct ground grounded objects near the structure inducing overvoltages 221 975 m2 0,643 flashes/year Ac1 collection area overhead lines from direct strikes NL1 expected annual number direct strikes the overhead line which are potentially dangerous 34 056 m2 0,051 flashes/year AI1 collection area overhead lines indirect strikes NI1 expected annual number indirect strikes ground near the overhead line which induce damaging overvoltages 1 000 000 m2 0,300 flashes/year Ac2 collection area underground lines from direct strikes NI2 expected annual number strikes direct the underground lines which are potentially dangerous 21 153 m2 0,032 flashes/year AI2 collection area underground lines indirect strikes NI2 expected annual number indirect strikes ground near the underground line which induce damaging overvoltages 559 017 m2 0,168 flashes/year Type Loss Human Life: RA1 risk dangerous touch and step potentials inside and outside the structure from direct strike the structure RB1 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the structure RC1 risk electrical electronic equipment failure due overvoltage from direct strike the structure RM1 risk electrical electronic equipment failure due overvoltage from indirect strike the structure RU1 risk dangerous touch and step potentials inside and outside the structure from direct strike the service lines RV1 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the service lines RW1 risk electrical electronic equipment failure due overvoltage from direct strike the service lines RZ1 risk electrical electronic equipment failure due overvoltage from indirect strike the service lines 2.43E-06 9. Obrázok 6.3 IEC Central Office Support (Tel: +41-22-919 0211) Copyright 2005, IEC.00E+00 O.28E-06 2,28E-06 6.00E+00 Type Economic Loss: RA4 risk dangerous touch and step potentials inside and outside the structure from direct strike the structure RB4 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the structure RC4 risk electrical electronic equipment failure due overvoltage from direct strike the structure RM4 risk electrical electronic equipment failure due overvoltage from indirect strike the structure RU4 risk dangerous touch and step potentials inside and outside the structure from direct strike the service lines RV4 risk destruction due fire, explosion, mechanical, chemical damage from direct strike the service lines RW4 risk electrical electronic equipment failure due overvoltage from direct strike the service lines RZ4 risk electrical electronic equipment failure due overvoltage from indirect strike the service lines 0. special eases, personal and economic factors may very important and should considered addition the assessment obtained use this tool, intended; that this tool used conjunction with the written standard IEC62305-2.3 Database: Version 1.00E+00 0