The NFC 17-102:2011 standard and the IEC 62305 standard represent two different approaches to lightning protection, each with its own specifications and recommendations. Here is a summary of the main differences between these two standards:
NFC 17-102:2011
Scope of application:
This French standard focuses primarily on the design, installation and maintenance of Early Streamer Emission (ESE) lightning rods.
Technology :
It is specifically geared towards the use of ESEs, which are designed to initiate the lightning capture process faster than traditional capture heads, thanks to an active initiation mechanism.
Application :
Although it can be applied to various types of structures, it is often preferred for the protection of isolated structures, structures of significant height, or those with specific lightning protection needs.
IEC 62305
Scope of application:
This series of international standards provides a comprehensive framework for lightning protection, covering risk analysis, physical protection of structures and surge protection for electrical and electronic equipment.
Technology :
IEC 62305 adopts a more comprehensive approach, integrating both external protection systems (e.g., conventional capture rods) and internal protection systems (overvoltage protection).
Application :
It is applicable to a wide range of structures, from residential buildings to complex industrial facilities, offering guidelines for comprehensively assessing and mitigating lightning risks.
The selection of the applicable standard depends on several factors, including the type of structure to be protected, local regulatory requirements, and specific lightning protection objectives. It is important to consult a lightning protection expert to determine the best approach for a given project.
