4th Flashcards
A picture or symbol intended to warn or alert people of a potentially hazardous condition and help an individual operate a tools better and safer.
ELECTRICAL SIGN
are all around us
signs
crucial not only for professionals but also for normal people
electrical sign
visual representation
ELECTRICAL SIGN
what are the 6 CLASSIFICATION AND USES OF ELECTRICAL SIGNS
- CAUTION
- SAFETY ALERT
- PROHIBITION
- DANGER
- HIGH VOLTAGE
- ELECTRICAL
HAZARDS
Indicates some precautionary measures against potential hazardous situation which, if not avoided, may result to a minor or moderate injury.
CAUTION
to avoid minor/moderate injury
CAUTION
Indicates that a person should observe extra awareness.
often used in working places
SAFETY ALERT
It means that any activity is not allowed as stated by the symbol.
PROHIBITION
examples of PROHIBITION
no smoking
no food allowed
Specifies hazardous situation which, if not avoided will result to a serious injury or even death.
DANGER
Warns of dangerously high voltage that can cause serious injury.
HIGH VOLTAGE
features as yellow triangle/black lightning volt
prevent accidental contact with electrical powered equipment
HIGH VOLTAGE
Informs workers and visitors of electrical hazards in the facility
ELECTRICAL HAZARDS
examples of ELECTRICAL HAZARDS?
Electrical Shock
Overloaded Circuits
Faulty Equipment
small drawings or pictograms used to represent various electrical devices in a diagram or plan of an electrical circuit.
ELECTRICAL SYMBOLS
Main purpose of a switch is to make the circuit to the “open” condition or to the “close” condition.
SWITCH
This is the source that mainly develops the charge for the circuit.
cell
device that converts chemical energy into electromagnetic energy
CELL
usually consists of a group of cells.
battery
is a single-unit device which converts chemical energy into electric energy.
cell
supplies power for a shorter period of time.
cell
can supply power for long durations.
battery
is used mostly for lighter tasks which require less energy. It is used in clocks, lamp, etc.
cell
is mostly used for heavy-duty tasks. It is used in automobiles, inverters, etc.
battery
Making a connection between a few cells makes a battery. It is more energized than a single cell.
BATTERY
will light up when the electrical charge is flowing through this.
lamp
generate light
lamp
A safety component is a fuse. It has a lower melting-point wire in it.
fuse
An instrument that measures voltages of either direct or alternating electric current
Voltmeter
A device for measuring electric current in amperes, either direct (DC) or alternating (AC).
Ammeter
An electrical component that is passive and adds resistance to the flow of
current.
Resistor
Conductor of electrical current
Electrical wire
Connected crossing
Connected wires
Wires are not connected
Not connected wires