Sections and Details
The District has established specific guidelines for designating sections and details on drawings. CAD cells have been provided in the common cell library (STCOMMON.CEL) for section cut marks and section and detail titles. EBMUD Engineering Standard Practice (ESP) 208.2 establishes the practice for designating sections and details.
Details are shown with a circle or ellipse surrounding the area of the detail. The circle or ellipse shall be drawn at weight 4 and line style 6. A leader line of weight 2 and line style 0 shall connect the detail "bubble" to the detail call-out.
Sections are always designated with sequential letter names, A through Z, excluding I and O. Details are always designated with sequential numbered names, 1, 2, 3, etc. Sections and details are defined on the drawings as a fractional symbol. The numerator identifies the section letter or detail number. Number and letters in the numerator are not to be duplicated in the view captions on any one sheet. However, the same numerals or letters may appear on any other sheet in the set. The denominator is the drawing cross reference number.
Drawing Cross Reference Number
In a parent view, the drawing cross reference number identifies the drawing where the section or detail view is drawn. This number is used in all cases, even when the section or detail is drawn on the same sheet as the parent view.
In the caption of a section or detail view, the drawing cross reference number identifies the drawing on which the parent view is shown. Where there is more than one parent view, the denominator will contain numbers, separated by semicolons, referring to each drawing showing a parent view.
When the drawing numbers that contains the parent view and the section or detail view both have the same structure number or same "G" number, then only the discipline code and the sequential drawing number are required in the drawing cross reference number. If the parent view and the section or detail view are on drawings that have different structure numbers or "G" numbers in the drawing number box, then the full drawing number shall be shown.