This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Surge limiters are used on IT networks and installed at the output of the MV/LV transformer.
They protect ungrounded networks from overvoltages, that can be due to:
• internal breakdown of the MV/LV transformer
• lightning strikes on the upstream MV network
These overvoltages could have serious consequences and damage devices connected to the grid. The cardew will allow high energy overvoltages to flow to the earth, hence protecting the downstream
ungrounded network.
They protect ungrounded networks from overvoltages, that can be due to:
• internal breakdown of the MV/LV transformer
• lightning strikes on the upstream MV network
These overvoltages could have serious consequences and damage devices connected to the grid. The cardew will allow high energy overvoltages to flow to the earth, hence protecting the downstream
ungrounded network.
Released for: Schneider Electric Egypt and North East Africa
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