torque tube
Defined in 1 dictionary — U.S. Code
United States Code
26 U.S.C. § 45X — for purposes of this section (2 versions over time)
The term “torque tube” means a structural steel support element (including longitudinal purlins) which—
(aa) is part of a solar tracker,
(bb) is of any cross-sectional shape,
(cc) may be assembled from individually manufactured segments,
(dd) spans longitudinally between foundation posts,
(ee) supports solar panels and is connected to a mounting attachment for solar panels (with or without separate module interface rails), and
(ff) is rotated by means of a drive system.