An anchor portal or H-frame tower is a
gantry structure supporting
overhead power line
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables (commonly multiples of three for three-p ...
s in a
switchyard. Their static function is similar to a
dead-end tower. Anchor portals are almost always
steel-tube or steel-framework constructions.
Gallery
Power line Morales1.jpg, A simple H-frame anchor tower consisting of two poles and one horizontal crossarm, bearing similarity to the letter H
Abspannmast_Abspannportal.jpg, anchor pylon and anchor portal, 380kV
UW-Birkenfeld_Abspannportal.jpg, anchor gantry, 110kV
UW_Seewiesen_Zuleitung.jpg, diagonal frame
Pylons
Electric power infrastructure
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