The document discusses the dangers of electric current and provides protection measures. It notes that electric current has various applications in laboratory practices but can pose dangers like abnormal heart rhythm and even death depending on the milliamperes. It then gives guidelines for protection like wearing safety equipment, checking circuit states, using protected appliances, and avoiding open spaces during storms. Protection aims to safeguard health and well-being while working with electric current.

1.  Current uses
 Dangers
 Protection
measures
 Caution

2. Introduction
A practices manual is a guide that can
help us as instrument for the appropriate
realization of the same, from the correct
application from security measures and
for prevent accidents. This document
present some practices in detailed and
order form allowing to the student,
perform an effective safe and easy work.

3. CURRENT USES
For example: “The electric
current in in our practices is
critical, because al power our
circuit and with the help of an
analogical or digital multimeter,
I let us know if our theoretical
calculation are correct and
compare obtained results with
the measured.
The electric current have
different applications to
the moment to realize
laboratory practices.

4. DANGERS
Current effects in our organism
Margin
Electric strength
(mill amperes)
Effects Consequences
1 2 until 25
Slight tingling,
numbness, muscle
cramps, increase of
the blood pressure
Scare with uncontrolled
movements, paralysis or
sometimes unconsciousness
2 25 until 80
Stomach seizures,
and severe muscle
cramping
Sickness, bones breaks, lack
of blood circulation, lack of
oxygen in the brain and after
of 4 minutes you’ll die by
death of brain cells.
3 80 until 500
Abnormal heart
rhythm,
(threatening)
Heart attack and death
4
De 500 until 1
ampere
Severe burns and
death
Death due to burns

5. Voltage driver
Contac form: the skin moisture favors the
electric circulation
Subject status: It is both the physical and
the mental state.
In the electric strength also involved
severe factors

6. Protection measures
 What is a safety equipment?
Any equipment to be used or fastened the employee to protect him of risks
that can to threat his security or his health at work, as well as any
complement or accessory for that purpose.
 What are they for?
It serves to protect integrity of the human being or the equipment with which
it works
Reduce the accidents
Importance
 Unprotected we exposed ourselves to a potential danger
 Be protected can ensure a quality of life and a good survival

7. CAUTION
MEASURES
•Before to start cut the power
•Check the good circuit state (no bare wires or gnowed)
•The electric appliances should be plugged to
protection circuits
• Sure that the electric appliances are properly
designed, installed and well maintained
•From avoid lighting during the storms, you should
avoid open spaces, sports fields, isolate under a tree
or metallic ceilings.