![]() Long outdoor distribution power lines are highly susceptible to the direct effects of lightning strikes, with large currents from the lightning being conducted in the power lines. For example, lightning discharges that directly strike the distribution line of a building, or its lightning rod, can induce electromagnetic fields that generate voltage spikes in nearby lighting installations. ![]() Despite their short duration, their high energy content may cause serious problems to electronic equipment connected to the electricity network - from premature aging to destruction - resulting in service disruptions and costly repairs.įigure 1 - Transient 'surge' over-voltage Surge over-voltages are spikes that can reach tens of kilovolts but last for only a few microseconds. Investing in protection can extend luminaire lifetime, improve public services, and greatly reduce overall operating and infrastructure costs Building-in protection What are transient or surge over-voltages? Located where continuity of service is essential, it is crucial that these installations are protected against lightning and over-voltages. Public lighting installations are exposed to the environment. It also proposes solutions to maximize protection performance and continuity of service. This document explains the causes of lightning over- voltages and how they affect lighting installations. The vulnerability of electronic lighting systems to over-voltages is widely recognized in technical literature, and different international regulations and standards specify the need for lighting protection. Beyond material damage to the luminaires, voltage surges caused by lightning, for example, can trigger or break protective devices in the circuit boards of lighting distribution panels. ![]() They wear out LED drivers and distribution panels prematurely and increase service interruptions to LED lighting. Voltage surges have a huge destructive impact upon electronic equipment, including LED lighting systems. Understanding Surge Protection For LED Lighting Systems
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