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Abbreviations and Symbols | Up
Construction Electrician Intermediate - Electricity handbook for electricians | Next
Figure 2-3.—Additional electrical symbols. |
An abbreviation is a shortened form of a word.
Sometimes the same abbreviation is used for different
words. The specific meaning of an abbreviation can be
determined by its use on the blueprint. Abbreviations
are used in notes or as specific characters on the
blueprints. The area referred to will give a hint to the
meaning of the abbreviation.
Symbols are used on blueprints to represent
materials, equipment, electrical. mechanical, plan.
elevations, and sections (figs. 2-2 through 2-9). They
are used as a simple way of representing a fact. Most
drawings have a legend of symbols which, when
combined together with the specifications, describes a
building thoroughly.
SCHEDULES
The schedule is a systematic method of presenting
notes and information in a tabular form for the purpose
of making it easily accessible to the craftsman and
specification writer. One example of a commonly used
lighting fixture schedule is shown in figure 2-10.
Similar schedules such as the room finish schedule and
the mechanical equipment schedule (not shown) are
very helpful and also should be reviewed.
SCALE REPRESENTATION
An architect cannot make his drawings full size.
For convenience. he reduces all dimensions to some
Figure 2-2.—Electrical symbols.
2-6
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