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  3. E-book “Protection against lightning strikes and surges in PV systems”
Technical Article

E-book “Protection against lightning strikes and surges in PV systems”

Get access to the e-book with content on discharge protection in photovoltaic systems

Author Engineering Team Canal Solar
Published 14 2019 December, 11: 26 Updated 15 January 2026, 07: 55
Reading 2 min read
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E-book: Protection against lightning and surges in rooftop PV systems

Standard operation of solar energy systems requires professional lightning and surge protection

O number and diversity of solar energy systems are continually growinge. Whether roof-mounted systems in single-family homes, stand-alone systems or ground-mounted systems.

Standard operation of solar energy systems requires professional lightning and surge protection.

DEHN offers lightning protection components and surge protection devices, which specifically match the requirements of solar energy systems. DEHN products are distributed in Brazil by Proauto Electric.

During operation, solar energy systems are exposed to various environmental factors and possible interference. Furthermore, unprofessional installation may cause damage after a short period of time.

System failure or downtime results in high costs. Therefore, permanent system availability is necessary to protect your investment and ensure cost-effective operation.

Damage is often caused by lightning strikes and surges. Good, professional and comprehensive protection consists of:

  • An external protection system against atmospheric discharges with a capture system and down conductor, taking into account the separation distance and a grounding system;
  • An internal lightning protection system with surge protection devices for equipotential bonding of lightning strikes.

The detailed requirements regarding the protection system mentioned above result from a risk analysis in accordance with IEC / EN 62305-2. Standards, experts, financial institutions and insurance companies also increasingly demand a corresponding protection concept.

Additionally, state building code requirements must be met for a solar energy system to be installed in a public building. The installation of a solar energy system, for example, must not interfere with the external lightning protection system that protects people and buildings.

Atmospheric discharge protection photovoltaic system SPDA surges in PV systems
Engineering Team Canal Solar
About the Author
Engineering Team Canal Solar

Engineering Team Canal Solar

Comments (1)

Comments are moderated before publication.

Comments should be respectful and contribute to a healthy debate. Offensive comments may be removed. The opinions expressed here are those of the authors and do not necessarily reflect the views of the author. Canal Solar.

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  • Computer 28/09/2025 · 06:18

    What factors are driving the increasing number and diversity of solar energy systems—from rooftop installations to ground-mounted and off-grid setups—in residential and commercial contexts?
    dce

    Reply

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