Electricity & Electrical Safety Flashcards
Case study- NO.1; Notes
Metal hairpins or wires should never be used to clean or otherwise poke any part of an electrical appliance – not even the lint screen.
Tools with a three-plug have a grounding pin, which is designed to guarantee a safe path for electricity and protection from electric shock to the user.
Estheticians often use advanced electrical and light therapy machines for various skin treatments.
Wearing shoes with a rubber sole will help to keep one safe from electrical shocks or accidents.
A basic understanding of electricity and electrical safety will enable one to properly use and care for her tools and equipment.
Contraindication
A condition that requires avoiding certain treatments, procedures, or products to prevent undesirable side effects.
Direct Current *DC
Constant, even-flowing current that travels in one direction only and is produced by chemical means.
Polarity
Positive or negative poles of an electric current.
Active Electrode
Electrode of an electrotherapy device that is used on the area to be treated.
Watt *W
Unit that measures how much electric energy is being used in one second.
Cathode
Negative electrode of an electrotherapy device; the cathode is usually black and is marked with an N or a minus (-) sign.
Anaphoresis
Process of infusing an alkaline (negative) product into the tissues from the negative pole toward the positive pole.
Conductor
Any material that conducts electricity.
Milliampere *mA
1.1,000 of an ampere
Alternating Current *AC
Rapid and interrupted current, flowing first in one direction and then in the opposite direction; produced by mechanical means and changes directions 60 times per second.
Volt * V
Also known as voltage; unit that measures the pressures or force that pushes electric current forward through a conductor.
Light therapy
Also known as phototherapy; the application of light rays to the skin for the treatment of wrinkles capillaries, pigmentation, or hair removal.
Complete Electric Circuit
The path of negative and positive electric currents moving from the generating source through the conductors and back to the generating source.
Iontophoresis
Process of infusing water-soluble products into the skin with the use of electric current, such as the use of the positive and negative poles of a galvanic machine.
Inactive Electrode
Opposite pole from the active electrode.
Electromagnetic Spectrum
Electromagnetic spectrum of radiation; name given to all of the forms of energy (or radiation) that exist.
Circuit breaker
Switch that automatically interrupts or shuts off an electric circuit at the first indication of overload.
Waveform
Measurement of the distance between two wavelengths.
Tesla high-frequency current
Also known as violet ray; thermal or heat -producing current with a high rate oscillation or vibration that is commonly used for scalp and facial treatments.
Invisible light
Light at either end of the visible spectrum of light that is invisible to the naked eye.
Inverter
Apparatus that changes direct current to alternating current.