NFPA 70E EXAM BUNDLE!!

After a circuit is deenergized by the automat- ic operation of a circuit protective device, the circuit shall not be manually reenergized until it has been determined that the equipment and circuit can be ? energized. - ANSWER Safely After interrupting a fault approaching its in- terrupting ...

NFPA 70E, Standard for Electrical Safety in the Workplace, consists of ? chapters; 17 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 f...

The OCPD that is protecting the downstream equipment - ANSWER The term "protecting-OCPD" best describes which one of the following? True - ANSWER The arc flash hazard created during an arc flash event is directly dependent on the OCPD that is protecting the downstream equipment where the arcing...

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 possibl...

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 f...

2. For exposed 480 VAC energized conductors and using NFPA 70E Table 130.2(C) or the Shock Protection Boundaries and PPE Fermilab Summary table for NFPA 70E, the Restricted Approach Boundary for shock protection is a. 1 Inch b. 7 Inches c. 1 Foot d. 3 Feet 6 Inches - ANSWER c 3. For energi...

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 ...

ATPV - ANSWER Arc Thermal Performance Value-The incident energy (cal/cm^2) on a material or a multilayer system of materials that results in a 50 percent probability that sufficient heat transfer through the tested specimen is predicted to cause the onset of a second degree skin burn injury based on...

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 clo...

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 perfo...

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 req...

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 clos...

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 Wor...

What is an Arc Flash? - ANSWER A short circuit that jumps through the air from one exposed conductor to another. What makes an Ar Flash dangerous? - ANSWER Temperatures of up to 35k' F, shrapnel, molten metal, chocks, shockwave (2k lbs/foot^2), soud (140 dB), burn injuries. Hazard/Risk Catego...