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NFPA 70E Table Method. 40. Minimizing Arc-Flash and Other. Electrical Hazards. 42. 1. Design a Safer System. 42. 2. Use and Upgrade to Current-limiting. Overcurrent Protective Devices. 43. 3. Implement an Electrical Safety Program. 45. 4. Observe Safe Work Practices. 45. 5. Use Personal Protective Equipment (PPE). 47.
Electrical Safety. Participants will be able to: • Explain the issues (statistics) associated with poor electrical safety in the workplace. • Recall key electrical terms which are essential to understanding and meeting the requirements of key electrical safety standards; i.e. OSHA 29 CFR 1910.331-.335,. NFPA 70E, NEC (NFPA 70).
NATIONAL SAFETY TECHNOLOGY. NFPA 70E. ? Requirements for safe work practices. ? Addresses hazards: ? Shock. ? Arc Flash/Blast. ? Requirements for shock and arc flash boundaries. ? Requirements personal protective equipment. ? Additional Training Requirements to be considered “Qualified". ? Energized
Second degree burn threshold is: ? 80 ?C / 175 ?F (0.1 sec),2nd degree. ? Third degree burn threshold is: ? 96 ?C / 205 ?F (0.1 sec), 3rd degree. ? The results of Arc Flash exposure are 2nd degree burns (curable), 3rd degree burns. (incurable) & damage to the eyes
The 2015 edition of NFPA 70E reflects a major shift in how stakeholders evaluate electrical risk. • New definitions Article 100, including. Hazard, Hazardous, Risk , and Risk. Assessment . • Changing “arc flash hazard analysis" to “arc flash risk assessment,". • Changing “shock hazard analysis" to. “shock risk assessment,".
The key to survival is to decrease our exposure to energized circuits. • Ohm's Law for electric current (amps), voltage and body resistance. • The typical body has a contact resistance of approximately 500 ohms at the point of contact with the electrical source. p. • The body has an internal resistance of approximately 100
8 Mar 2017 2: See Table 130.7(C)(15)(A)(a) Table 130.5 for examples of activities that could pose tasks that increase the likelihood of an arc flash hazard incident occurring. NFPA 70E 2018: Proposed Changes. 8. Definition modified to provide consistency with definition of “shock hazard". Harmonizes the language in
13 Dec 2011 NFPA 70E ELECTRICAL SAFETY. Presented by: GTRI – REGION 4. Thomas Dean. Steven Owen. Steve Davis. Note: The training materials were developed under NFPA 70E. 2009 Edition. Over 30,000 non-fatal electrical shock accidents occur each year. Over 600 people die from electrocution each year.
Electrical Hazards » Shock. Normal Conditions. NEC reduces the risk for shock under normal conditions. • When equipment is operated under normal conditions, worker is not exposed to energized parts. Abnormal Conditions. Risk for shock & arc flash increase under abnormal conditions. • NFPA 70E reduces risk through.
NFPA 70E: Standard for Electrical Safety in the Workplace (2018) Online Training Series. Keep the workplace safe from electrical hazards using the 2018 edition of NFPA 70E®. In fact, hundreds of deaths and thousands of burn injuries occur each year due to shock, electrocution, arc
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