A downlead is an electrical cable connecting an outdoor structure to an indoor or in-ground structure. In particular, it may refer to:
*
Drop (telecommunication), the wire connecting an outdoor (particularly roof-mounted) antenna to the interior
* The wires in a
lightning protection system
A lightning rod or lightning conductor (British English) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. If lightning hits the structure, it will preferentially strike the rod and be conducte ...
, which connect the lightning rods to the grounding rods
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