Wind turbine blade comprising a lightning protection system equipped with radar absorbing material
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United States of America Patent
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Jun 25, 2019
Grant Date -
May 25, 2017
app pub date -
Oct 28, 2016
filing date -
Nov 24, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The invention provides a wind turbine blade having a Radar Absorbing Material (RAM) and a lightning protection system arranged for guaranteeing the performance of the lightning protection system and the integrity of the RAM. The lightning protection system has lightning receptors located at a tip region and one or two down-conductors disposed inside of the wind turbine blade for driving lightning current to ground. The RAM covers the entire wind turbine blade except the tip region and has at least a functional layer and a reflector layer connected to the one or two down conductors by means of auxiliary cables.
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