Nfpa 70e stuvia - Study guides, Class notes & Summaries

Three main electrical hazards working on energized circuit - ANSWER Shock, fire, arc What is an arc flash? - ANSWER A type of electrical explosion or discharge that results from low impedance connection through air to ground or another phase. What is an arc blast? - ANSWER The explosive burst of energy that occurs during an arc flash. What determines the effects of shock on the body? - ANSWER Time, path, amount of current What is the onset of second-degree burn - ANSWER 1.2 cal/cm^2 ...

NFPA 70E - ANSWER ___ is a voluntary standard for electrical safety-related work practices. FALSE - ANSWER Only NFPA committee members can draft a proposal and submit it to the NFPA FALSE - ANSWER The only way for workers to be protected from electrical hazards is for them to wear the proper PPE for the task. milliamps (mA) - ANSWER When a person receives an electric shock, the current through the body is measured in ___. 3 mA to 7 mA - ANSWER At ___, most people realize they have be...

True or False: A mandatory rule can have exceptions. - ANSWER False True or False: Permissive rules are allowed but not required to be performed - ANSWER true What does NEC stand for? - ANSWER National Electrical Code What do chapters 1-4 of the NEC cover - ANSWER General electric installations What do chapters 5-7 of the NEC cover - ANSWER Special equipment and loctations What does chapter 8 of the NEC cover - ANSWER Communication systems What does chapter 9 of the NEC cover -...

What is the purpose of the Occupational Safety and Health Act? - ANSWER The ensure the establishment of safe and healthy working environments. Electrical Safety in the Workplace p.5 The NFPA 70E has a supplemental section which contains... - ANSWER NEC articles Electrical Safety in the Workplace p.7 What is an explosive event that occurs with an arc flash? - ANSWER an arc blast Electrical Safety in the Workplace p.8 The NFPA70E applies to any workplace that had the potential f...

Accessible (as applied to equipment) - ANSWER Admitting close approach; not guarded by locked doors, elevation, or other effective means Accessible (as applied to wiring methods) - ANSWER Capable of being removed or exposed without damaging the building structure or finish or not permanently closed in by the structure or finish of the building Accessible, Readily (Readily Accessible) - ANSWER Capable of being reached quickly for operation, renewal, or inspections without requiting those to...

What is the purpose of the Occupational Safety and Health Act? - ANSWER The ensure the establishment of safe and healthy working environments. Electrical Safety in the Workplace p.5 The NFPA 70E has a supplemental section which contains... - ANSWER NEC articles Electrical Safety in the Workplace p.7 What is an explosive event that occurs with an arc flash? - ANSWER an arc blast Electrical Safety in the Workplace p.8 The NFPA70E applies to any workplace that had the potential f...

NFPA 70E, Standard for Electrical Safety in the Workplace, consists of ? chapters, 16 informative annexes, the Foreword to NFPA 70E, and Article 90, Introduction. Chapter 1 is divided into ? articles. - ANSWER 3/5 The appointment of the NFPA 70E Committee was announced on January 7, ? , and was formed to assist ? in preparing electrical safety standards that would serve its requirements. - ANSWER 1976/ OSHA he 2004 edition of NFPA 70E introduced the requirements of ? . The 2015 edition ? a...

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 ex...

What are the guidelines for using CPR on a shock victim? - ANSWER Begin CPR as soon as possible after de-energizing the source of shock Continue CPR until medical assistance arrives Secure the accident scene Don't delay rescue procedures On which three topics are unqualified workers required to receive training under NFPA 70E? - ANSWER Any relevant electrical safety work practices not covered by the NFPA 70E standard Procedures for protecting them from relevant electrical hazards...

The 3 hazards of electricity are? - ANSWER Shock, Arc Flash, Ark Blast When an individual disconnect device in an energized MMC has been locket out, that MCC is... - ANSWER Still a potential Arc Flash risk When working within the restricted approach boundary which is REQUIRED in order to perform non-electrical work near energized equipment? - ANSWER The Crushed Gravel in an electrical substation is intended to... - ANSWER Increase the resistance of worker to ground An example of eli...