NFPA 70E FINAL EXAM Guaranteed Pass

Final Exam Study Material NFPA 70E | Exam Ready A+ Scored Arrangement of 70E - answer - Introduction (Article 90) Chapter 1 Safety Related Work Practices Chapter 2 Safety Related Maintenance Requirements Chapter 3 Safety Requirements for Special Equipment Annexes (Article 350) Arc Flash Hazard - answer - A dangerous condition associated with the possible release of energy caused by an electric arc Arc Rating - answer - The value attributed to materials that describes their performance to exposure to an electrical arc discharge. The arc rating is expressed in cal/cm^2 and is derived from the determined value of the arc thermal performance value (ATPV) or energy of breakopen threshold (E BT) (should a material system exhibit a breakopen resoponce below the APTV value). Arc rating is reported as either APTV or E bt, whichever is the lower value. Barricade - answer - A physical obstruction such as tapes, cones, or A-frame-type wood or metal structures intended to provide a warning and to limit access. Barrier - answer - A physical obstruction that is intended to prevent contact with equipment or energized electrical conductors and circuit parts or to prevent unauthorized access to a work area. Shock boundaries - answer - Limited approach boundary, Restricted approach boundary, Prohibited approach boundary (not in 2015) Limited approach boundary - answer - An approach limit at a distance from an exposed energized electrical conductor or circtuit part within which a shock hazard exists. Restricted approach boundary - answer - An approach limit at a distance from an exposed energized electrical conductor or circuit part within which there is an increased likelihood of electric shock, due to electrical arc-over combined with inadvertent movement, for personnel working in close proximity to the energized electrical conductor or circuit part. Arc Flash Boundary - answer - When an arc flash hazard exists, an approach limit at a distance from a prospective arc source within which a person could receive a second degree burn if an electrical arc flash were to occur. Electrically safe work condition - answer - A state in which an electrical conductor or circuit part has been disconnected from energized parts, locked/tagged in accordance with established standards, tested to ensure the absence of voltage, and grounded if determined necessary. Hazard - answer - A source of possible injury or damage to health Incident Energy - answer - The amount of thermal energy impressed on a surface, a certain distance from the source, generated during an electrical arc event. Incident energy is typically expressed in calories per square centimeter. Incident energy analysis - answer - A component of an arc flash risk assessment used to predict the incident energy of an arc flash for a specified set of conditions. Qualified person - answer - A person who has demonstrated skills and knowledge related to the construction and operation of electrical equipment and installations and received safety training to identify and avoid the hazards involved. Risk - answer - A combination of the likelihood of occurrence of injury or damage to health and the severity of injury or damage to health that results form a hazard. Risk assessment - answer - An overall process that identifies hazards, estimates the potential severity of injury or damage to health, estimates the likelihood of occurrence of injury or damage to health, and determines if protective measures are required. Working on (energized electrical conductors or circuit parts). - answer - Intentionally coming in contact with energized electrical conductors or circuit parts with hands, feet, or other body parts, with tools, probes, or with test equipment, regardless of the PPE a person is wearing. There are two categories of "working on": Diagnostic (testing) is taking readings or measurements of electrical equipment with approved test equipment that does not require making any physical change to t