Flow of electrical energy
What is current
A fatal electric shock
What is electrocution
This is said to "push" current through a conductor
What is Voltage
This hazard is the primary source of electrocutions
What are power lines
A conductor added to circuits to create low resistive path to neutral or earth
What is a ground wire
Material through which current moves easily
What is a conductor
Accidentally becoming part of this can cause injury or death
What is an electrical circuit
Measures strength of current flow
What is amperage
The minimum safe distance to maintain away from overhead power lines ≤50,000 Volts
What is 10 feet
Safety device required by OSHA on construction site circuits
What is a GFCI—ground fault circuit interrupter.
Glass, rubber, plastic, dry wood, paper, ceramics, and air
What are insulators
The threshold for ventricular fibrillation
What is 100 milliamps (mA) of current
This protects electrical systems and equipment from overcurrent
What are circuit breakers/fuses
The only ladders you may use near energized circuits
What are non-conductive (fiberglass or wood)
A ground conductor loses its connectivity if this is missing from a plug
What is the ground prong
Inversely proportional to current— opposition to flow
What is resistance
Three factors that affect severity of shock
What are path, amount of current, length of time
Luminous electrical discharge through the air
What is arcing
When this shield is worn, frayed, or cut, workers are at high risk for shock
What is the insulation around an energized conductor
"S, ST, SO, STO" for example
What are extension cord designation codes indicating usage ratings
neutrons, protons, electrons
The three types of particles within the atoms of a conducting material—in a household circuit
flash, flame, lightning, and true
What are the 4 types of electrical shock
A volt
What is the unit of electric potential difference, or the size of the force that sends the electrons through a circuit
service point
What is the power line to a home
Eliminates shock hazard. Protects equipment from voltage. Prevents electrical fires. Reduces equipment repair cost and downtime.
What are the benefits of proper grounding