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Common Electrical Symbols Module

Electrical symbols are used to represent electrical devices in schematic diagrams and wiring plans. Common symbols represent things like switches, lights, outlets, and other fixtures. Understanding these symbols allows electricians and contractors to easily install wiring according to the diagram. Proper electrical signs also help inform workers of hazards in an area to prevent fires and injuries.

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4K views2 pages

Common Electrical Symbols Module

Electrical symbols are used to represent electrical devices in schematic diagrams and wiring plans. Common symbols represent things like switches, lights, outlets, and other fixtures. Understanding these symbols allows electricians and contractors to easily install wiring according to the diagram. Proper electrical signs also help inform workers of hazards in an area to prevent fires and injuries.

Uploaded by

JanineJor
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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COMMON ELECTRICAL SYMBOLS Electrical signs and stickers alert students, workers, and visitors to electrical hazards in the

cal signs and stickers alert students, workers, and visitors to electrical hazards in the area. Alerting
workers to high voltage areas, electrical hazards, power lines and other electrical equipment in the area, can
help prevent fires and injuries. Proper electrical signs can inform workers of the dangers in the area.
Electrical Symbols are small drawings or pictograms used to represent various electrical devices in a
diagram or plan of an electrical circuit. These symbols are used in sketching schematic diagrams and
electrical plans for numerous types of electrical works. Practically any electrical fixture found in a house has
a symbol that coincides to said fixture on an electrical wiring diagram. These are very useful guide for an
electrician or electrical contractor, thus, making the wiring easier to install as well.

ELECTRICAL WIRING DIAGRAM

 The flow of current in a conductor or wire can be represented by diagram. There are two types of
diagram: pictorial diagram and schematic diagram.
ELECTRICAL SIGNS
A. Pictorial diagram is a sketch of electrical circuit that shows the external appearance of each component.
 Your power tool with its manual may contain "WARNING ICONS" (a picture symbol intended to alert you It is much like a photograph of the circuit and uses simple images of parts.
to, and/or to instruct you how to avoid a potentially hazardous condition). Knowing and understanding
these symbols will help you operate your tool better and more safely.
B. Schematic diagram is a sketch showing the components of the circuit using standard electrical symbols.
It shows the actual number of components and how the wiring is routed but not the actual location.

ELECTRICAL PLAN

 Electrical plan is a graphical presentation of electrical wiring connections to install in a particular


house or building. It indicates the position of electrical fixtures such as convenience outlets,
switches, lightings, door bells, and others to be installed
C. Types of Circuit 1. Series Circuit is a circuit in which lamps are arranged in a chain, so that the current
has only one path to take. The current is the same through each load. Example of this is the Christmas
lights. It consists of a number of bulbs that are connected side by side to meet the voltage requirement Sample electrical plan of Single family dwelling
which is 220 volts for alternating current.

2. Parallel Circuit is a circuit in which lamps are connected across the wires. The voltage across each load
on parallel circuit is the same. The advantage of using parallel circuit is that even if one of the lamps fails,
still the remaining lamps will function.

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