Electrical Safety Culture
Identify three (3) of the eight (8) potential injuries from an electrical event.
What are Burns, Cardiac Death, Amputation, Memory Loss, Hearing Loss, Fracture, Cataract, Blast Plasma
Name the three (3) recognized electrical hazards that can cause injury or death while a person works on or near electrical equipment or systems.
What are ELECTRIC SHOCK, ARC FLASH, ARC BLAST
__________ is a direct result of an arc-blast event?
What is PRESSURE
Name 3 power sources that require lock out procedures?
Electrical, mechanical, hydraulic, pneumatic (Not just electrical)
With an understanding of the body's resistance and the circuit voltage, the current can be calculated using _______?
What is OHMS LAW
An arc flash hazard is a dangerous condition caused by the release of energy in a(n) ____________?
What is an ELECTRIC ARC
Contact with bare energized electrical conductive parts, causing current flow through the body that results in a failure of body functions and leads to death is best described as ______________?
What is ELECTROCUTION
Human skin resistance decreases when the bare body part is _______, compared to when ________?
What is WET / DRY
Employers must comply with the _____ ______ _____ found in Section 5 of the OSH Act, which is generally cited when no specific OSHA standard applies to the hazard?
What is GENERAL DUTY CLAUSE
Gloves used for electrical protection must be electrically tested every_____?
6 months
Protective systems, such as work practices and PPE can help to ________ or __________ exposure to hazards?
What is REDUCE / ELIMINATE
In an average person ____ to ____ mA is range of current that causes the muscles to lock up and is call the ________?
What is 10 to 40 mA / LET-GO THRESHOLD
What can cause an Arc flash?
Dust, Corrosion, Tool slip, other impurities
The two standards applicable to the majority of the work performed by electrical workers are found in ______ which applies Construction and ______ which applies General Industry?
What is PART 1926 / PART 1910
The standards set forth for the Electrical Safety-Related Work Practices are found in ________?
What is the NFPA 70E
Working on energized circuits is part of the job and should be considered a routine part of the electrical work that an Electrical Worker performs.
False
Explain the difference between a qualified person and a competent person.
Qualified- trained, authorized, properly equipped. Competency is demonstrated, not certified. Competent person as an individual “who is capable of identifying existing and predictable hazards in the surroundings or working conditions, and who has authorization to take prompt corrective measures to eliminate them.”
What is the established minimum distance approach boundary for work around exposed power lines?
10 ft
In accordance with 1926.333(b)(1), conductors and parts of electric equipment that have been de-energized but are not locked out or tagged shall be treated as ________ parts?
What is ENERGIZED
What is the symbol for double insulated tools? - draw it on the board
double square
Describe the difference between an outlet and receptacle.
A receptacle is what we plug into. It's often confused as an outlet. The outlet is the point on the wiring system which current is taken to supple equipment.
During an arcing fault event, the temperature of the arc terminals can reach approximately 35,000 °F, which is about ________ as hot as the surface of the sun.
What is FOUR TIMES
What's the primary purpose of GFCI?
Protect people, trips in ½ a second.
Which of the following is an example of an energy isolating device?
Circuit breaker / Disconnect switch / Line valve
Name at least one company that meets the Nationally Recognized Testing Laboratory Programs requirements for safety cords (NRTL). Hint- it’s the label on the cord.
UL or CSA