IEC 62305 standard update – what does it mean for your projects?
Edition 3 of IEC 62305 is here and we'll get you up to speed. As a leading expert in lightning protection, we explain the changes and requirements in an understandable way, show practical solutions for the updated specifications and implement them together with you in your projects.
We have summarised what you need to know about the standard here.
If you would like to be informed in detail, please take advantage of our training programme.
Our promise: maximum protection with standard-compliant solutions.
Our training programme for IEC 62305
Understand and apply lightning protection
New requirements for lightning protection? With the right partner, dealing with updates to standards is child's play. We accompany you and face the revised requirements together.
What we prepare for you:
You will gain practical insights into all important aspects of lightning protection, electrical safety and updates to standards. Compact, understandable and directly applicable. The seminars are designed for planning engineers, consultants, lightning protection installers, fitters, experts and authorities and last 45–60 minutes each.
Stay tuned: our training courses on Edition 3 of IEC 62305 will start shortly.
Standard update:
we explain, you benefit.
The updated IEC 62305 brings numerous changes which we will make clear for you. For greater clarity and a real head start in the planning and implementation of standard-compliant lightning protection systems.
This is why our expertise pays off for you:
- More understanding for safety
We don't just explain what's new – we show what it means for you in practice. This enables you to make informed decisions. - More knowledge for standard compliance
So that planning and implementation meet the updated requirements. With our help, you'll know exactly what matters. - Save more costs through prevention
If you are familiar with the standard, you can take targeted action and avoid unnecessary retrofitting. We will show you what you should pay attention to from an economic point of view. - More efficiency in your processes
With the standard update clearly explained, we bring structure to your planning and speed to implementation.
Advantages of standard-compliant lightning protection in accordance with IEC 62305
Standards are the key to greater safety and reliability. With the update of IEC 62305, the standards defined therein have not only been updated, but also adapted to the requirements of the times.
Those who orientate themselves to standards and adhere to them are thinking ahead and preparing themselves for the future.
Our solutions often not only fulfil the current minimum requirements, but also take further updates into account.
Benefits at a glance:
- Safety first
The minimum requirements listed in IEC 62305 effectively protect life, technology and infrastructure against the effects of lightning. - Economically viable
Damage, downtimes and financial burdens can be avoided with standard-compliant lightning protection. - Globally recognised standard
Standardised specifications ensure seamless safety and the functioning interaction of systems. - Sustainable, reliable and foresighted
Earthing, lightning current discharge and protective measures according to the current state of the art. New requirements now also cover modern building technology and IT infrastructure. A new feature is the reference to IEC 61643-32 regarding the use of surge arresters in photovoltaic installations.
Standard-compliant solutions.
We have the answer to the minimum requirements of IEC 62305 Edition 3. Our products not only offer compliance with IEC 62305, they are also designed for reliable implementation in the long term.
We will show you how you can optimise your response to the standard update with our portfolio.
DEHNrisk – the future of lightning protection analysis
DEHNrisk complies with IEC 62305-2:2024 and is the answer to the updated risk assessment requirements. With DEHNrisk, you can determine the lightning risk for structures comprehensively, quickly and precisely. The Web-based application provides support in determining the lightning protection class required and other measures.
Electrical insulation with HVI Lightning Protection from DEHN
Edition 3 of IEC 62305-3 describes electrically insulated lightning protection systems for the first time. Whether it's specifically on the roofs of industrial buildings or very generally in complex building structures – it all comes back down to the separation distance. Using the high-voltage-resistant, insulated HVI Conductors from DEHN, you can easily maintain separation distances to live parts. Available in a wide variety of designs. Our DEHNiso Combi portfolio is also suitable for further specifications of the updated IEC 62305.
No backup fuse thanks to ACI technology from DEHN
Part 4 of IEC 62305 describes the minimum requirements for the backup fuse of surge arresters. The design of a backup fuse is highly complex and has a negative impact on system availability if it is incorrectly dimensioned. It is also necessary to monitor the fuses.
ACI (Advanced Circuit Interruption) technology eliminates the need for an external backup fuse thanks to the integrated switch/spark gap combination. For more space in the switchgear cabinet, greater flexibility during installation and reliable system protection.
Testing at the accredited test centre
Edition 3 of IEC 62305-3 describes the correct selection of lightning protection components that are tested in accordance with the IEC 62561 product standard. The solution: the accredited and independent DEHN Test Centre carries out product and system tests according to standards or customer specifications. The test facility for lightning impulse currents with pulses of up to 400 kA is unique
Full or partial support
We create the entire lightning protection concept – from the risk analysis and earthing simulation to budget planning – all precisely tailored to your project and standard-compliant. Get to know DEHN Engineering Services and share your challenges with us.
Simulations regarding current distribution
Annex E of IEC 62305 Edition 3 presents simulations of lightning current distribution for the first time – for more precise analysis and the correct dimensioning of surge arresters (SPDs). Our training courses show you how the simulations affect the selection of suitable SPDs.
