ДСТУ IEC 62305-2:2012 Защита от молнии. Часть 2. Управление рисками (IEC 62305-2:2010, IDT)

ПІДТВЕРДЖУВАЛЬНЕ ПОВІДОМЛЕННЯ

Наказом Міністерства економічного розвитку і торгівлі України
від 28.05.2012 №640

Європейський стандарт

ІЕС 62305-2:2010

en: Protection against lightning - Part 2: Risk management

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

ДСТУ ІЕС 62305-2:2012

uk: Захист від блискавки. Частина 2. Керування ризиками
(ІЕС 62305-2:2010, IDT)

З наданням чинності в Україні від 2012-08-01

CONTENTS

FOREWORD

INTRODUCTION

1 Scope

2 Normative references

3 Terms, definitions, symbols and abbreviations

3.1 Terms and definitions

3.2 Symbols and abbreviations

4 Explanation of terms

4.1 Damage and loss

4.1.1 Source of damage

4.1.2 Types of damage

4.1.3 Types of loss

4.2 Risk and risk components

4.2.1 Risk

4.2.2 Risk components for a structure due to flashes to the structure

4.2.3 Risk component for a structure due to flashes near the structure

4.2.4 Risk components for a structure due to flashes to a line connected to the structure

4.2.5 Risk component for a structure due to flashes near a line connected to the structure

4.3 Composition of risk components

5 Risk management

5.1 Basic procedure

5.2 Structure to be considered for risk assessment

5.3 Tolerable risk RT

5.4 Specific procedure to evaluate the need of protection

5.5 Procedure to evaluate the cost effectiveness of protection

5.6 Protection measures

5.7 Selection of protection measures

6 Assessment of risk components

6.1 Basic equation

6.2 Assessment of risk components due to flashes to the structure (S1)

6.3 Assessment of the risk component due to flashes near the structure (S2)

6.4 Assessment of risk components due to flashes to a line connected to the structure (S3)

6.5 Assessment of risk component due to flashes near a line connected to the structure (S4)

6.6 Summary of risk components

6.7 Partitioning of a structure in zones Z_S

6.8 Partitioning of a line into sections S_L

6.9 Assessment of risk components in a structure with zones Z_S

6.9.1 General criteria

6.9.2 Single zone structure

6.9.3 Multi-zone structure

6.10 Cost-benefit analysis for economic loss (L4)

Annex A (informative) Assessment of annual number N of dangerous events

Annex B (informative) Assessment of probability P_X of damage

Annex C (informative) Assessment of amount of loss L_X

Annex D (informative) Evaluation of costs of loss

Annex E (informative) Case study

Bibliography

Figure 1 - Procedure for deciding the need of protection and for selecting protection measures

Figure 2 - Procedure for evaluating the cost-effectiveness of protection measures

Figure A.1 - Collection area AD of an isolated structure

Figure A.2 - Complex shaped structure

Figure A.3 - Different methods to determine the collection area for the given structure

Figure A.4 - Structure to be considered for evaluation of collection area A_D

Figure A.5 - Collection areas (A_D, A_M, A_I, A_L)

Figure E.1 - Country house

Figure E.2 - Office building

Figure E.3 - Hospital

Figure E.4 - Apartment block

Table 1 - Sources of damage, types of damage and types of loss according to the point of strike

Table 2 - Risk components to be considered for each type of loss in a structure

Table 3 - Factors influencing the risk components

Table 4 - Typical values of tolerable risk R_T

Table 5 - Parameters relevant to the assessment of risk components

Table 6 - Risk components for different types of damage and source of damage

Table A.1 - Structure location factor C_D

Table A.2 - Line installation factor C_I

Table A.3 - Line type factor C_T

Table A.4 - Line environmental factor C_E

Table B.1 - Values of probability P_TA that a flash to a structure will cause shock to living beings due to dangerous touch and step voltages

Table B.2 - Values of probability P_B depending on the protection measures to reduce physical damage

Table B.3 - Value of the probability P_SPD as a function of LPL for which SPDs are designed

Table B.4 - Values of factors C_LD and C_LI depending on shielding, grounding and isolation conditions

Table B.5 - Value of factor K_S3 depending on internal wiring

Table B.6 - Values of probability P_TU that a flash to an entering line will cause shock to living beings due to dangerous touch voltages

Table B.7 - Value of the probability P_EB as a function of LPL for which SPDs are designed

Table B.8 - Values of the probability P_LD depending on the resistance R_S of the cable screen and the impulse withstand voltage U_W of the equipment

Table B.9 - Values of the probability P_LI depending on the line type and the impulse withstand voltage U_W of the equipment

Table C.1 - Type of loss L1: Loss values for each zone

Table C.2 - Type of loss L1: Typical mean values of L_T, L_F and L_O

Table C.3 - Reduction factor r_t as a function of the type of surface of soil or floor

Table C.4 - Reduction factor r_p as a function of provisions taken to reduce the consequences of fire

Table C.5 - Reduction factor r_f as a function of risk of fire or explosion of structure

Table C.6 - Factor h_z increasing the relative amount of loss in presence of a special hazard

Table C.7 - Type of loss L2: Loss values for each zone

Table C.8 - Type of loss L2: Typical mean values of L_F and L_O

Table C.9 - Type of loss L3: Loss values for each zone

Table C.10 - Type of loss L3: Typical mean value of L_F

Table C.11 - Type of loss L4: Loss values for each zone

Table C.12 - Type of loss L4: Typical mean values of L_T, L_F and L_O

Table E.1 - Country house: Environment and structure characteristics

Table E.2 - Country house: Power line

Table E.3 - Country house: Telecom line (TLC)

Table E.4 - Country house: Factors valid for zone Z₂ (inside the building)

Table E.5 - Country house: Collection areas of structure and lines

Table E.6 - Country house: Expected annual number of dangerous events

Table E.7 - Country house: Risk R₁ for the unprotected structure (values x 10^-5)

Table E.8 - Country house: Risk components relevant to risk R₁ for protected structure

Table E.9 - Office building: Environment and structure characteristics

Table E.10 - Office building: Power line

Table E.11 - Office building: Telecom line

Table E.12 - Office building: Distribution of persons into zones

Table E.13 - Office building: Factors valid for zone Z₁ (entrance area outside)

Table E.14 - Office building: Factors valid for zone Z₂ (garden outside)

Table E.15 - Office building: Factors valid for zone Z₃ (archive)

Table E.16 - Office building: Factors valid for zone Z₄ (offices)

Table E.17 - Office building: Factors valid for zone Z₅ (computer centre)

Table E.18 - Office building: Collection areas of structure and lines

Table E.19 - Office building: Expected annual number of dangerous events

Table E.20 - Office building: Risk R₁ for the unprotected structure (values x 10^-5)

Table E.21 - Office building: Risk R₁ for the protected structure (values x 10^-5)

Table E.22 - Hospital: Environment and global structure characteristics

Table E.23 - Hospital: Power line

Table E.24 - Hospital: Telecom line

Table E.25 - Hospital: Distribution of persons and of economic values into zones

Table E.26 - Hospital: Factors valid for zone Z₁ (outside the building)

Table E.27 - Hospital: Factors valid for zone Z₂ (rooms block)

Table E.28 - Hospital: Factors valid for zone Z₃ (operating block)

Table E.29 - Hospital: Factors valid for zone Z₄ (intensive care unit)

Table E.30 - Hospital: Collection areas of structure and lines

Table E.31 - Hospital: Expected annual number of dangerous events

Table E.32 - Hospital: Risk R₁ - Values of probability P for the unprotected structure

Table E.33 - Hospital: Risk R₁ for the unprotected structure (values x 10^-5)

Table E.34 - Hospital: Risk R₁ for the protected structure according to solution a) (values x 10^-5)

Table E.35 - Hospital: Risk R₁ for the protected structure according to solution b) (values x 10^-5)

Table E.36 - Hospital: Risk R₁ for the protected structure according to solution c) (values x 10^-5)

Table E.37 - Hospital: Cost of loss C_L(unprotected) and C_RL (protected)

Table E.38 - Hospital: Rates relevant to the protection measures

Table E.39 - Hospital: Cost C_P and C_PM of protection measures (values in $)

Table E.40 - Hospital: Annual saving of money (values in $)

Table E.41 - Apartment block: Environment and global structure characteristics

Table E.42 - Apartment block: Power line

Table E.43 - Apartment block: Telecom line

Table E.44 - Apartment block: Factors valid for zone Z₂ (inside the building)

Table E.45 - Apartment block: Risk R₁ for the apartment block depending on protection measures