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.
Try This
Drawings
Take moment clarify the difference between:
● layout drawings and
● as-fitted drawings
