Safety Meeting Topic #37 NFPA 70E What is it? The National Fire Protection Association (NFPA) 70E is the standard for Electrical Safety Requirements for Employee Workplaces and is a supplement to the NFPA70 National Electric Code. It contains four major parts: Part I is Installation Safety Requirements. Part II is Safety Related Work Practices. Part III is Safety-Related Maintenance Requirements. Part IV is Safety Requirements for Special Equipment. The purpose of NFPA 70E is to fulfill OSHA s responsibilities for electrical safety, and be fully consistent with the National Electrical Code (NFPA 70). The NEC is intended for use primarily by those who design, install, and inspect electrical installations. OSHA s electrical regulations address the employer and employee in their workplace. Some of the detailed provisions within the NEC are not directly related to employee safety and therefore are of little value for OSHA s needs. Furthermore, requirements for electrical safety-related work practices of electrical systems considered critical to safety are not found in the NEC. Thus, NFPA 70E covers these essential safety items and is intended for use by employers, employees, and OSHA. Part I is further subdivided into six chapters. The chapters look a lot like the NEC; however, remember the focus is on safe installations. Some safety topics covered in this part are electrical connections, branch circuits, grounding, wiring methods, special equipment/systems, and hazardous locations. Part II has five chapters and six appendices. This is a very important part because is covers such topics as working on or near energized conductors, personal protective equipment requirements when working on or near energized parts and lockout/tagout requirements. For example, do you know what PPE is required to insert an MCC bucket into energized equipment at 480 volt? The answer is that this is Hazard/Risk Category 3, which requires two layers of Fire Retardant (FR) clothing, a hard hat with a FR liner, face protection double layer switching hood, hearing protection, voltage rated gloves, and leather work shoes Part III has eleven chapters and specifically covers maintenance requirements for substations, switchgear, fuses, circuit breakers, rotating equipment to name a few. Part IV has five chapters and covers safety around special equipment such as battery rooms, lasers, and electronic equipment. Please discuss the following tables regarding the minimum safety requirements for various electrical tasks at specified voltages.
ARC FLASH PROTECTION GUIDE RISK CATEGORY: TASK: PPE REQUIRED: UNDERGARMENTS (UNTREATED COTTON) T-SHIRT (LONG SLEEVE) OPERATE A CIRCUIT BREAKER OR FUSED SWITCH WITH COVERS ON 240 VOLTS AND BELOW 0 1 OPERATE A OPEN AND CLOSE WORK ON CIRCUIT BREAKER A HINGED COVER ENERGIZED OR FUSED SWITCH WITH COVERS OFF TO EPOSE BARE ENERGIZED PARTS PARTS, INCLUDING VOLTAGE TESTING REMOVE OR INSTALL CIRCUIT BREAKERS OR FUSES REMOVE OR INSTALL BOLTED COVERS TO EPOSE BARE, SHIRT (LONG SLEEVE) PANTS (LONG) FIRE RETARDANT (FR) CLOTHING FIRE RETARDANT COVERALLS (MIN 8 FLASH SUIT JACKET (40 FLASH SUIT PANTS (40 FR PROTECTIVE EQUIPMENT HARD HAT FR HARD HAT LINER SAFETY GLASSES FACE PROTECTION (FACE SHIELD-MIN. 8 FACE PROTECTION (DOUBLE- LAYER SWITCHING HOOD) HEARING PROTECTION (EAR CANAL INSERTS) LEATHER GLOVES ONLY LEATHER GLOVES-worn external to voltage rated and tested rubber gloves VOLTAGE RATED TOOLS LEATHER WORK SHOES
ARC FLASH PROTECTION GUIDE RISK CATEGORY: 0 TASK: PPE REQUIRED UNDERGARMENTS (UNTREATED COTTON) OPERATE A CIRCUIT BREAKER OR FUSED SWITCH WITH COVERS ON OPERATE A CIRCUIT BREAKER OR FUSED SWITCH WITH COVERS OFF GREATER THAN 240 VOLTS AND UP TO 600 VOLTS 1 OPEN OR CLOSE A HINGED COVER TO EPOSE BARE, INSERTION OR REMOVAL (RACKING) OF CB'S FROM CUBICLES, DOORS CLOSED WORK ON INCLUDING VOLTAGE TESTING 2 APPLICATION OF SAFETY GROUNDS, AFTER VOLTAGE TEST REMOVE OR INSTALL A BOLTED COVER TO EPOSE BARE, INSERTION OR REMOVAL (RACKING OF CB'S FROM CUBICLES, DOORS OPEN T-SHIRT (LONG SLEEVE) 3 INSERTION OR REMOVAL OF INDIVIDUAL STARTER BUCKETS FROM MCC SHIRT (LONG SLEEVE) PANTS (LONG) FIRE RETARDANT (FR) CLOTHING FIRE RETARDANT COVERALLS (MIN 8 FLASH SUIT JACKET (40 FLASH SUIT PANTS (40 FR PROTECTIVE EQUIPMENT HARD HAT FR HARD HAT LINER SAFETY GLASSES FACE PROTECTION (FACE SHIELD-MIN. 8 FACE PROTECTION (DOUBLE-LAYER SWITCHING HOOD) HEARING PROTECTION (EAR CANAL INSERTS) LEATHER GLOVES ONLY LEATHER GLOVES-worn external to voltage rated and tested rubber gloves VOLTAGE RATED TOOLS LEATHER WORK SHOES
ARC FLASH PROTECTION GUIDE GREATER THAN 600 VOLTS RISK CATEGORY: 2 4 OPERATE A CIRCUIT BREAKER OR FUSED ALL OTHER HIGH VOLTAGE TASKS- TASK: SWITCH WITH COVERS CONTACT THE SHOP ON PPE REQUIRED UNDERGARMENTS (UNTREATED COTTON) T-SHIRT (LONG SLEEVE) SHIRT (LONG SLEEVE) PANTS (LONG) FIRE RETARDANT (FR) CLOTHING FIRE RETARDANT COVERALLS (MIN 8 FLASH SUIT JACKET (40 FLASH SUIT PANTS (40 FR PROTECTIVE EQUIPMENT HARD HAT FR HARD HAT LINER SAFETY GLASSES FACE PROTECTION (FACE SHIELD-MIN. 8 FACE PROTECTION (DOUBLE- LAYER SWITCHING HOOD) HEARING PROTECTION (EAR CANAL INSERTS) LEATHER GLOVES ONLY LEATHER GLOVES-worn external to voltage rated and tested rubber gloves VOLTAGE RATED TOOLS LEATHER WORK SHOES
Name Date 1. NFPA 70E can be used in lieu of the NEC. SAFETY MEETING #37 - NFPA 70E - WHAT IS IT? TRAINING QUIZ 2. NFPA 70 E has five parts with sub-chapters and appendices 3. Part IV of NFPA 70E covers Safety requirements for Special Equipment 4. Part II of NFPA 70E covers Safety related Maintenance Requirements. 5. Part I of NFPA 70E has a chapter covering. A. Lockout/Tagout B. Hazardous locations C. Hearing Protection D. PPE 6. Part III of NFPA 70E has chapters. A. 5 B. 6 C. 11 D. 13 7. You could find information about what PPE is required to insert an MCC bucket into energized equipment at 480 volts in part. A. I B. II C. III D. IV 8. Critical safety-related work practices of electrical systems are found in the NEC. 9. Part III of the NFPA 70E specifically covers maintenance requirements of sub-stations.
10. NFPA 70E is specifically designed to fulfill OSHA s requirements for electrical safety. 11. You could find information on maintenance requirements for rotating equipment in part. A. I B. II C. III D. IV 12. Part I chapters look a lot like the NEC. 13. NFPA 70 E is intended for use by employers, employees, and OSHA. 14. You could find information on lasers in part. A. I B. II C. III D. IV 15. If someone wanted to know about battery rooms they could look in part IV.