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Drawings
Take moment clarify the difference between:
● layout drawings and
● as-fitted drawings.
.66
Basic Electrical Installation Work
Main control or
intake point
Main sub-main switch
Socket outlet (mains)
general symbol
Switched socket outlet
Socket outlet with pilot lamp
Multiple socket outlet
Example: for plugs
Push button
Luminous push button
Electric bell:
general symbol
Electric buzzer:
general symbol
Time switch
Projector lamp with
reflector
Spotlight
Single fluorescent lamp
Single-pole,
one-way switch
Note: Number switches at
one point may indicated
Two-pole, one-way switch
Three-pole,
one-way switch
Cord-operated single-pole
one-way switch
Two-way switch
3
Intermediate switch
Lighting point lamp:
general symbol
Note: The number, power
and type the light source
sould specified
Example:
Three lamps
340W
Lamp lighting point:
wall mounted
Emergency (safety)
lighting point
Lighting point with
built switch
Automatic fire detector
FIGURE 3.1
Some 60617 electrical installation symbols
