Electrical datum plane
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above the highest water level for the area occurring under normal circumstances.' Tools for Electricians: Tools for Electricians, Installers, Maintenance & Service Technicians. (4) The electrical datum plane for floating structures and landing stages that are (1) installed to permit rise and fall response to water level, without lateral movement, and (2) that are so equipped that they can rise to the datum plane established for (1) or (2) above, is a horizontal plane 750 mm (30 in.) above the water level at the floating structure or landing stage and a minimum of 300 mm (12 in.) above the level of the deck. But I go further & say 682.2 (2) ' In land areas not subject to tidal fluctuation, the electrical datum plane is a horizontal plane 2 ft. (3) In land areas subject to flooding, the electrical datum plane based on (1) or (2) above is a horizontal plane 600 mm (2 ft) above the point identified as the prevailing high water mark or an equivalent benchmark based on seasonal or storm-driven flooding from the authority having jurisdiction. A structure extending over the water and supported on a fixed foundation (fixed.
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(2) In land areas not subject to tidal fluctuation, the electrical datum plane is a horizontal plane 600 mm (2 ft) above the highest water level for the area occurring under normal circumstances. question are: Pier and Electrical Datum Plane. All the profiles of orientation and are used in the exact same way. Parallelism is a specific form of angularity only at 0°/180° instead of a called out angle. Relation to Other GD&T Symbols: Surface Parallelism. The electrical datum plane as used in this article is defined as follows: (1) In land areas subject to tidal fluctuation, the electrical datum plane is a horizontal plane 600 mm (2 ft) above the highest tide level for the area occurring under normal circumstances, that is, highest high tide. However, unlike flatness, the part is constrained against a granite block or flat plane that acts as the datum surface where it is measured.