12/30/2023 0 Comments Electrical blueprint symbolsIt should also specify changes in ceiling elevations and materials, such as lights, sprinklers, smoke detectors, and HVAC diffusers that attach to or penetrate the ceiling. Drafting Standards for the Reflected Ceiling PlanĪ reflected ceiling plan must clearly show all walls, partitions, and soffits that intersect with the ceiling. Lighting fixtures are represented with symbols in the reflected ceiling plan and keyed to a legend showing specifications. However, in some cases such as miniature spotlights, the size may have to be exaggerated, as the properly scaled unit would be too small to show up on the plan.Īn enlarged detail of a blackout shade is drawn in section view and keyed to its location in the small-scale reflected ceiling plan. In most cases, the lighting fixture is drawn to the scale of the actual fixtures. Simplistic forms prevent clutter in the view for ease of recognition. The luminaires should be drawn as simple rectangles, squares, or circles that depict the actual fixture as closely as possible. If an enlarged detail is needed to explain a feature in the ceiling, it is keyed with a note or symbol to a separate, larger-scale drawing. The scale the ceiling plan is drawn at should be noted and placed directly below the drawing, either adjacent to or directly below the title. Depending on the complexity of the project and ceiling treatment, the most common scale for residential and small commercial projects is i// = 1'-0" (1:50 metric) and V8" = 1'-0" (1:100 metric) for large commercial projects. Reflected ceiling plans should be drawn at the same scale as the floor plans. Construction Drawings Scale of Reflected Ceiling Plans
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