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Neets Module 19-The Technicians Handbook | Next
Capacitance |
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drinks or stimulants. Get the victim to a medical facility as soon as possible. Cooling measures must be
continued while the victim is being transported.
Heat Exhaustion
Heat exhaustion (heat prostration or heat collapse) is the most common condition caused by working
or exercising in hot spaces. Heat exhaustion produces a serious disruption of blood flow to the brain,
heart, and lungs. This causes the victim to experience weakness, dizziness, headache, loss of appetite, and
nausea.
Signs and symptoms of heat exhaustion are similar to those of shock: the victim will appear ashen
gray; the skin will be cold, moist, and clammy; and the pupils of the eyes may be dilated (enlarged). The
vital (blood pressure, temperature, pulse, and respiration) signs usually are normal; however, the victim
may have a weak pulse together with rapid and shallow breathing. Body temperature may be below
normal.
You should treat heat exhaustion victims as if they were in shock. Loosen the clothing, apply cool
wet cloths, move the victim to either a cool or an air-conditioned area, and fan the victim. Do not allow
the person to become chilled. If the victim is conscious, administer a solution of 1 teaspoon of salt
dissolved in a quart of cool water. If the victim vomits, do not give any more fluids. Transport the victim
to a medical facility as soon as possible.
HELPFUL INFORMATION
The second part of this handbook has been compiled to provide the technician with a collection of
helpful information. Included are many commonly used formulas, data tables, and general maintenance
hints used in, with, and around electricity.
BASIC ELECTRICAL FORMULAS
Basic electrical formulas are included to aid you in solving electrical problems. These formulas are
for capacitance, current, inductance, power, reactance, impedance, resistance, voltage, and transformers.
Additional formulas can be found in the appropriate NEETS module.
Capacitance
The property of an electrical device to store energy is CAPACITANCE. This energy is stored in a
way to oppose a change in voltage. A CAPACITOR is used to store this electrical energy. The FARAD
is the basic unit of measurement of capacitance.
Formulas for capacitance:
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