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DETAILS OF TECHNICAL STANDARDS

IEC 62305-2

Protection against lightning.
Part 2: Risk management

YEAR FILE EDITION SCAME
       

International Standard

 

Contents
(courtesy IEC)

IEC 62305-2 is applicable to risk assessment for a structure due to lightning flashes to earth.
Its purpose is to provide a procedure for the evaluation of such a risk.
Once an upper tolerable limit for the risk has been selected, this procedure allows the selection of appropriate protection measures to be adopted to reduce the risk to or below the tolerable limit.
This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:

  • 1) Risk assessment for services connected to structures is excluded from the scope.
  • 2) Injuries of living beings caused by electric shock inside the structure are considered.
  • 3) Tolerable risk of loss of cultural heritage is lowered from 10-3 to 10-4. The value of tolerable risk of loss of economic
  • value (RT = 10-3) is introduced, to be used when data for cost/benefit analysis are not available.
  • 4) Extended damage to surroundings structures or to the environment is considered.
  • 5) Improved equations are provided for evaluation of:
    • - collection areas relevant to flashes nearby a structure,
    • - collection areas relevant to flashes to and nearby a line,
    • - probabilities that a flash can cause damage,
    • - loss factors even in structures with risk of explosion,
    • - risk relevant to a zone of a structure,
    • - cost of loss.
  • 6) Tables are provided to select the relative amount of loss in all cases.
  • 7) Impulse withstand voltage level of equipments was extended down to 1 kV.

 



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The main Standards
related to IEC 62305-2


 

Corresponding European standards
EN 62305-2Protection against lightning.
Part 2. Risk management
 
Corresponding International standards
No data available
 
Organizations and Institutions
IECInternational Electrotecnical Commission
[International Standard]
 
Other related IEC Standards
IEC 1024-1 Protection of structures against lightning.
Part 1: General principles
IEC 62305-1 Protection against lightning.
Part 1: General Principles
IEC 62305-2 Protection against lightning.
Part 2: Risk management
IEC 62305-3 Protection against lightning.
Part 3: Physical damage to structures and life hazard
IEC 62305-4 Protection against lightning.
Part 4: Electrical and electronic systems within structures
 
Thematic collection
Lightning

 


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The main Scame products
related to the requirements of the standard IEC 62305-2


 

BLUELINE "SALVAFULMINE" Series
Protection against over voltages



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GENERAL CATALOGUE

 

Rev.17.0206      

 

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