CSA B78.5 : 93(R2000)

Technical Committee on Technical Drawings and Symbols
Subcommittee on Computer-Aided Design Drafting
(Buildings)
Subcommittee on Symbologies
Preface
1 Scope
2 Reference Publications
3 Definitions
4 General
   4.1 Relationship to Manual Practice
   4.2 CADD Philosophy
   4.3 CADD Standard for the Building Industry
5 Data Structure for CADD Information
   5.1 General
   5.2 Primitives
   5.3 Symbols
   5.4 Graphics
   5.5 Groupings
   5.6 Use of Attributes
   5.7 World Coordinate Systems
6 Drawing Sheet Sizes
   6.1 Sheet Sizes
   6.2 Trimmed Drawing Sheets
7 Layout of Drawing Sheet
   7.1 General Layout
   7.2 Margin and Border
   7.3 Title Panel
   7.4 Information Panel
   7.5 Key Diagram
   7.6 Orientation of Plans
   7.7 Revisions
8 Lines
   8.1 Line Thickness
   8.2 Minimum Line Thickness
   8.3 Line Thickness Range
   8.4 Line Thickness Grouping
9 Lettering
   9.1 General
   9.2 Minimum Height of Lettering
   9.3 Lettering Line Thickness
   9.4 Character Dimensions
   9.5 Underlined Texts or Text Fields
10 Scales
   10.1 Reproduction Reference Scale
   10.2 Choice of Scale
   10.3 Preferred Scales
11 Referencing
   11.1 Coding
   11.2 Reference Grids
   11.3 Key Indicators
12 Dimensioning
   12.1 General
   12.2 Dimension Lines
   12.3 Extension (Projection) Lines
   12.4 Leaders
   12.5 Dimension Line Terminators
   12.6 Dimension Numerals
   12.7 Dimensional Coordination
   12.8 Not-to-Scale Dimensions (NTS)
13 Levels and Slopes
   13.1 General
   13.2 Benchmarks and Contours
   13.3 Expression of Elevations of Levels
   13.4 Elevations on Sections or Building Elevation
         Drawings
   13.5 Expression of Angular Measurement
14 Legends
15 Schedules
16 Symbols and Graphics
17 Explanation of Drawings and Symbol Illustrations
Figures
General
   17.1 Generic Symbols
Site
   17.2 Drawing of Key Plan
   17.3 Drawing of Site Plan
   17.4 Site Symbols
Architectural
   17.5 Drawing of Floor Plan
   17.6 Drawing of Part Floor Plan
   17.7 Drawing of External Column Detail
   17.8 Architectural Symbols and Graphics
   17.9 Drawing of Roof Framing Plan
   17.10 Drawing of Structural Details
   17.11 Structural Steel Shapes Symbols and
         Graphics - Plan
   17.12 Structural Steel Shapes Symbols and
         Graphics - Detail
   17.13 Structural Cold Formed Shapes Symbols
   17.14 Structural Bolting Symbols
   17.15 Structural Welding Symbols
   17.16 Structural Miscellaneous Symbols
   17.17 Structural Joist and Deck Symbols
   17.18 Structural Concrete Reinforcing Symbols
         Mechanical
   17.19 Fire Protection Symbols
   17.20 Drawing of Heating, Ventilation, and Air
         Conditioning
   17.21 Heating, Ventilation, and Air Conditioning
         Symbols
   17.22 Drawing of Plumbing
   17.23 Piping Symbols
   17.24 Piping Fitting Symbols
   17.25 Piping Specialities Symbols
   17.26 Piping Valve Symbols
   17.27 Piping Valve Actuator Symbols
   17.28 Mechanical Generic Symbols Electrical
   17.29 Drawing of Power and Communications
   17.30 Drawing of Heating
   17.31 Drawing of Lighting and Fire Protection
   17.32 Lighting Symbols
   17.33 Receptacle Outlet Symbols
   17.34 Switch Outlet Symbols
   17.35 Institutional, Commercial, and Industrial
         Electrical Symbols
   17.36 Signalling System Symbols
   17.37 Panelboard, Busduct, and Wireway Symbols
   17.38 Electrical Underground Distribution Symbols
   17.39 Electrical Aerial Distribution Symbols
   17.40 Electrical Panel Circuit and Miscellaneous
         Symbols Telecommunications
   17.41 Telecommunications Outlet Box and Connector
         Symbols
   17.42 Telecommunications Pathway Symbols
   17.43 Telecommunications Space and Equipment Symbols
   17.44 Telecommunications Termination and Cable Symbols
   17.45 Telecommunications Cable Splice Symbols
   17.46 Telecommunications Grounding and Bonding Symbols
Appendices
A - CADD Philosophy and Background Information
B - Vocabulary

Applicable to the computer-aided preparation of building working drawings. Establishes detailed recommendations on symbols and their application for computer-aided design drafting (CADD) for the building industry. Develops the principles of manually-drawn building drawings as documented in CSA Standard CAN3-B78.3 and has adapted those principles to suit CADD where appropriate.