Anchor portal
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Template:Short description Template:One source
An anchor portal[1] or H-frame tower is a gantry structure supporting overhead power lines 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
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A simple H-frame anchor tower consisting of two poles and one horizontal crossarm, bearing similarity to the letter H
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anchor pylon and anchor portal, 380kV
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anchor gantry, 110kV
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diagonal frame
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Multi-level gantry tower
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Gantry tower with road underneath
References
Template:Electric-power-stub
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