BLUEPRINT LANGUAGE

There are various ways that a blueprint shows work to be done. Since the written word can be confusing and take up valuable time and space, other means have been developed. These means include various types of lines, symbols, abbreviations, and other methods of providing dimensions and working directions.

TYPES OF LINES USED ON DRAWINGS

The main types of lines a Utilitiesman should be able to read and understand are depicted in figure 4-1(D).

_{ELECTRICAL SYMBOLS AND} intentions are communicated through the use of _{ABBREVIATIONS} symbols and abbreviations. In the preparation of electrical drawings, most engineers use symbols In addition to using different types of adopted by the American National Standards lines, both the architect and the engineer's ^{Institute (ANSI).}

Figure 4-1(D).-Construction drawing lines.

Figure 4-2.-Electrical symbols.

(ANSI). However, many engineers will modify them to suit their needs. For this reason, most drawings have a symbol list or legend. The electrical symbols in figure 4-2 are taken from the ANSI Y32.9, 1972 publication.

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