A Fibre optic cables are made from glass which does not conduct electricity and is outside the Scope of BS 7671:2018. Therefore, there is no requirement to install SPDs to protect this type of cable. Lightning-induced surges can travel through power lines, telecommunication lines, or nearby metallic structures and pose a. The Professional Association Of Fiber Optics www. org The Fiber Optic Association, Inc. The charter of the FOA was to promote professionalism. This page discusses how to best protect your Fiber to the Home (FTTH) application and all associated components like the Rectifier, AC Power Panel, Transfer Switch, Battery Charger, Fiber Breakout Box, Street Cabinet, Wireless Radio, Router and Ethernet Switch. 7 states that an SPD installed on the load side of the RCD is required to have a surge current immunity of at least 3 kA. RCD standards include two levels of immunity to surge currents. BS EN 62305 defines this as a complete system of protection.
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