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    • PC62.55/D8, Feb 2020 - UNAPPROVED DRAFT
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This guide covers the application of surge protective devices (SPDs) used to protect the dc power feeds of remote radio heads (RRH) and power supplies of fiber-optic cable systems feeding the antenna systems.


Revision Standard - Active - Draft. The waveform of currents likely to exist on dc feeds to equipment located at the tops of towers due to a lightning strike, and the consequences of that waveform for protector design, are described in this guide.