Downlead

Downlead
A TV antenna with a long downlead visible at right

A downlead is an electrical wire or cable connecting an outdoor (particularly roof) structure to an indoor or ground structure.

  • Most often, it refers to the wire connecting an outdoor (particularly roof-mounted) television antenna to the interior, and may also be referred to informally as a drop.
  • It may also refer to the wires in a lightning protection system that connect the lightning rods to the grounding rods – formally, the bonding connectors that connect the air terminals to the ground terminals, and are also referred to as down conductors.

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