ДСТУ EN 62305-1:2012 Захист від блискавки. Частина 1. Загальні принципи (EN 62305-1:2011, IDT)

ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ

Наказом Міністерства економічного розвитку і торгівлі України від 28.05.2012 № 640

Європейський стандарт

EN 62305-1:2011
en: Protection against lightning — Part 1: General principles

прийнято як національний стандарт
методом «підтвердження» мовою оригіналу за національним позначенням

ДСТУ EN 62305-1:2012
uk: Захист від блискавки. Частина 1. Загальні принципи
(EN 62305-1:2011, IDТ)

з наданням чинності в Україні від 2012-08-01

CONTENTS

FOREWORD

INTRODUCTION

1 Scope

2 Normative references

3 Terms and definitions

4 Lightning current parameters    

5 Damage due to lightning

5.1 Damage to a structure  

5.1.1 Effects of lightning on a structure

5.1.2 Sources and types of damage to a structure         

5.2 Types of loss  

6 Need and economic justification for lightning protection

6.1 Need for lightning protection

6.2 Economic justification of lightning protection  

7 Protection measures     

7.1 General            

7.2 Protection measures to reduce injury of living beings by electric shock

7.3 Protection measures to reduce physical damage

7.4 Protection measures to reduce failure of electrical and electronic systems

7.5 Protection measures selection  

8 Basic criteria for protection of structures          

8.1 Genera

8.2 Lightning protection levels (LPL)

8.3 Lightning protection zones (LPZ)

8.4 Protection of structures 

8.4.1 Protection to reduce physical damage and life hazard 

8.4.2 Protection to reduce the failure of internal systems

Annex A (informative) Parameters of lightning current

Annex B (informative) Time functions of the lightning current for analysis purposes

Annex C (informative) Simulation of the lightning current for test purposes 

Annex D (informative) Test parameters simulating the effects of lightning on LPS components         

Annex E (informative) Surges due to lightning at  different installation points        

Bibliography 

Figure 1 - Connection between the various parts of IEC 62305 

Figure 2 - Types of loss and corresponding risks resulting from different types of damage

Figure 3 - LPZ defined by an LPS (IEC 62305-3) 

Figure 4 - LPZ defined by an SPM (IEC 62305-4)

Figure A.1 - Definitions of impulse current parameters

Figure A.2 - Definitions of long duration stroke parameters   

Figure A.3 - Possible components of downward flashes (typical in flat territory and to lower structures)

Figure A.4 - Possible components of upward flashes (typical to exposed and/or  higher structures)        

Figure A.5 - Cumulative frequency distribution of lightning current parameters (lines through 95 % and 5 % value)

Figure B.1 - Shape of the current rise of the first positive impulse  

Figure B.2 - Shape of the current tail of the first positive impulse   

Figure B.3 - Shape of the current rise of the first negative impulse 

Figure B.4 - Shape of the current tail of the first negative impulse  

Figure B.5 - Shape of the current rise of the subsequent negative impulses

Figure B.6 - Shape of the current tail of the subsequent negative impulses 

Figure B.7 - Amplitude density of the lightning current according to LPL I   

Figure C.1 - Example test generator for the simulation of the specific energy of the first positive impulse and the charge of the long stroke

Figure C.2 - Definition of the current steepness in accordance with Table C.3  

Figure C.3 - Example test generator for the simulation of the front steepness of the first positive impulse for large test items     

Figure C.4 - Example test generator for the simulation of the front steepness of the subsequent negative impulses for large test items         

Figure D.1 - General arrangement of two conductors for the calculation of electrodynamic force       

Figure D.2 - Typical conductor arrangement in an LPS    

Figure D.3 - Diagram of the stresses F for the configuration of Figure D.2        

Figure D.4 - Force per unit length F’ along the horizontal conductor of Figure D.2      

Table 1 - Effects of lightning on typical structures 

Table 2 - Damage and loss relevant to a structure according to different points of strike of lightning          

Table 3 - Maximum values of lightning parameters according to LPL     

Table 4 - Minimum values of lightning parameters and related rolling sphere radius corresponding to LPL     

Table 5 - Probabilities for the limits of the lightning current parameters       

Table A.1 - Tabulated values of lightning current parameters taken from CIGRE (Electra No. 41 or No.69)

Table A.2 - Logarithmic normal distribution of lightning current parameters - Mean H and dispersion cring calculated from 95 % and 5 % values from CIGRE (Electra No.41 or No. 69)

Table A.3 - Values of probability P as function of the lightning current       

Table B.1 - Parameters for Equation (B.1)

Table C.1 - Test parameters of the first positive impulse   

Table C.2 - Test parameters of the long stroke    

Table C.3 - Test parameters of the impulses      

Table D.1 - Summary of the lightning threat parameters to be considered in the calculation of the test values for the different LPS components and for the different LPL

Table D.2 - Physical characteristics of typTable D.3 - Temperature rise for conductors of different sections as a function of W/R   

Table E. 1 - Conventional earthing impedance values Z and Z-1 according to the resistivity of the soil

Table E.2 - Expected surge overcurrents due to lightning flashes on low-voltage systems 

Table E.3 - Expected surge overcurrents due to lightning flashes on telecommunication systems