Arc Flash & Shock Hazard Awareness Training Per The NFPA 70E . - TRSA
Electrical Safety Arc Flash & Shock Hazard Awareness Training per the NFPA 70E, OSHA, NEC, ANSI Z10, & IEEE 1584 Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Arc Flash Shock Copyright Bob Herzig & Associates 2015 Shock Arc Blast Copyright Bob Herzig & Associates 2015
Arc Flash Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 ELECTRICAL FATALITY DATA FROM BLS In the US between 1992-2013 6,000 fatal electrical injuries The number of fatalities has fallen from 334 in ‘92 to 139 in ’13 40% of all electrical fatalities are due to contact overhead powerlines CAMPBELL, RICHARD B., AND DAVID A. DINI. "OCCUPATIONAL INJURIES FROM ELECTRICAL SHOCK AND ARC FLASH EVENTS." FIRE PROTECTION RESEARCH FOUNDATION (2015): 1-96. PRINT. Copyright Bob Herzig & Associates 2015
ELECTRICAL FATALITY DATA FROM NSC LOW-VOLTAGE INJURED VICTIMS FACTS The NSC reported in Injury Facts in 2014 that 57.5% of the patients attempted to return to there were 961 fatal injuries from 2008-2010 due to exposure to electrical current, radiation, temperature, and pressure. work on average 107.7 days after injury only one-third of patients successfully returned to work 59.38 days after injury Most low-voltage injuries are electrical flash burns (55% of study population) CAMPBELL, RICHARD B., AND DAVID A. DINI. "OCCUPATIONAL INJURIES FROM ELECTRICAL SHOCK AND ARC FLASH EVENTS." FIRE PROTECTION RESEARCH FOUNDATION (2015): 1-96. PRINT. Let’s Look at the Statistics -Electrical injuries are 2% of total injuries but 28 - 52% of total medical costs1 -Electrical injuries are the 2nd mostly costly workers compensation claim2 CAMPBELL, RICHARD B., AND DAVID A. DINI. "OCCUPATIONAL INJURIES FROM ELECTRICAL SHOCK AND ARC FLASH EVENTS." FIRE PROTECTION RESEARCH FOUNDATION (2015): 1-96. PRINT. Causes of Arc Flash Antiquated or Improperly Maintained Equipment Wyzga, RE, Lindroos, W.,” Health Implications of Global Electrification”, Annals of the New York Academy of Sciences, 1999, vol 888, pp1-7. 2 “Work Related Electrical Injuries: Study Sparks New Insights”, Liberty Mutual Research Institute for Safety, vol 13, No. 3, Winter 2010 1 Copyright Bob Herzig & Associates 2015
Causes of Arc Flash Causes of Arc Flash Improperly Rated Meters Human Error Dropping metal enclosures into circuit Forcefully opening buckets Accidentally leaving tools in enclosure Poor workmanship Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Causes of Arc Flash Causes of Arc Flash Non-insulated or Improper Tools Copyright Bob Herzig & Associates 2015 Snakes, Mice, Spider Webs, oh my! Copyright Bob Herzig & Associates 2015
OSHA recognizes arc flash and shock as hazards in general industry. It is the employer’s responsibility to understand industry standards and protect workers! Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 OSHA & Arc Flash History Ford Motor Company 2nd and 3rd Tier Suppliers of Auto industry Automotive Industry Fiberglass Industry Pharmaceutical Product Providers Grain Products Production Food Production & Manufacturing Retail Products Hospitals, Universities, & Commercial Copyright Bob Herzig & Associates 2015 Light Manufacturing 1999 2000 2001 2002 2003 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Copyright Bob Herzig & Associates 2015
Article 100 Definition Qualified Person - One who has demonstrated skills and knowledge related to the construction and operation of electrical equipment and installations and has received safety training to identify and avoid the hazards involved. Copyright Bob Herzig & Associates 2015 Article 110.2(D)(1)(f) (f) The employer shall determine through regular supervision or through inspections conducted on at least an annual basis that each employee is complying with the safety-related work practices required by this standard. Copyright Bob Herzig & Associates 2015 Annual Field Audits The best method of ‘qualifying’ workers is to create pass/fail criteria and to document this for annually for all qualified electrical workers. This form should be created for all varying ‘levels’ of electrical workers! Copyright Bob Herzig & Associates 2015 Article 110.2(D)(3) Retraining in safety-related work practices and applicable changes in this standard shall be performed at intervals not to exceed three years. Copyright Bob Herzig & Associates 2015
Safe Methods of Release – Best Practices 110.2 Training Requirements. (C) Emergency Response Training. Employees exposed to shock hazards shall be trained in methods of safe release of victims from contact with exposed energized electrical conductors or circuit parts. Refresher training shall occur annually. Copyright Bob Herzig & Associates 2015 1) Turn off the power supply 2) Use an insulated shepherds hook to pull the worker off of the source of energy 3) When certain hazardous tasks are performed, utilize a ‘buddy system’ 4) Use any non-conductive device for leverage to pull your coworker off the source Copyright Bob Herzig & Associates 2015 110.2 Training Requirements. (C) Emergency Response Training. Employees responsible for responding to medical emergencies shall be trained in cardiopulmonary resuscitation (CPR) and automatic external defibrillator (AED) use Refresher training shall occur annually. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
130.5 Arc Flash Risk Assessment. An arc flash risk assessment shall be performed and shall: (1) Determine if an arc flash hazard exists. If an arc flash hazard exists, the risk assessment shall determine: a) Appropriate safety-related work practices b) The arc flash boundary c) The PPE to be used within the arc flash boundary Copyright Bob Herzig & Associates 2015 130.5 Arc Flash Risk Assessment. (2) Be updated when a major modification or renovation takes place. It shall be reviewed periodically, at intervals not to exceed 5 years, to account for changes in the electrical distribution system that could affect the results of the arc flash risk assessment. Copyright Bob Herzig & Associates 2015 Article 130.5 (C) Equipment labeling 130.5 Arc Flash Risk Assessment. The arc flash risk assessment shall take into consideration the design of the overcurrent protective device and its opening time, including its condition of maintenance. Copyright Bob Herzig & Associates 2015 Electrical Equipment . shall be field marked with a label containing all of the following information: (cont.) (3) At least one of the following: a. Available incident energy and the corresponding working distance, or the arc flash PPE category for the equipment b. Minimum arc rating of clothing c. Site-specific level of PPE The method of calculating and data to support the information for the label shall be included. Copyright Bob Herzig & Associates 2015
Warning Label WARNING Qualified Persons Only Arc Flash PPE Category Arc Flash Boundary Arc Flash and Shock Hazards Appropriate PPE Required Incident Energy Analysis REVIEW SAFE WORK PRACTICES PRIOR TO WORK 110.16 Arc-Flash Hazard Warning. Electrical equipment, such as switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers, that are in other than dwelling units, and are likely to require examination, adjustment, servicing, or maintenance while energized, shall be field or factory marked to warn qualified persons of potential electric arc flash hazards Copyright Bob Herzig & Associates 2015 46 Inch 5.5 cal/cm 2 480 VAC 00 42 Inch 12 Inch PPE Requirements Arc Flash Protection Boundary AF Incident Energy @ Working Distance: 18 Inch Recommended (minimum) PPE: AR (meet or exceed calculated Incident Energy) LS Shirt & Pants (or coverall), Balaclava, Hardhat Arc Rated Face Shield w/ wraparound guard (or flash suit hood), Safety Glasses, Hearing Protection, Voltage-Rated Electrical Gloves with leather protectors, Heavy-duty Leather work shoes. Shock Hazard Glove Class Limited Approach Restricted Approach 2 Label Location Nominal Voltage Shock Boundaries Job# 2014-00-00-00-BHA Prepared 08/28/14 Location: Machine Panel Copyright Bob Herzig & Associates 2015 Article 100 Definition Incident Energy - 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 (cal/cm²). Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Article 100 Definition Article 100 Definition Incident Energy Analysis - A component of an arc flash risk assessment used to predict the incident energy of an arc flash for a specified set of conditions. Informational Note - A second degree burn is possible by an exposure of unprotected skin to an electric arc flash above the incident energy level of 5 J/cm² (1.2 cal/cm²). Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 A match is approximately 1 calorie of energy If you lit a match and compressed the energy into 1 square centimeter, you would have 1 cal/cm² If you had 40 matches burning in each square centimeter, you would have 40 cal/cm² Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Incident Energy is calculated at an 18 inch working distance per the NEC and NFPA 70E Copyright Bob Herzig & Associates 2015 Article 130.7(E)(2) Barricades shall be used in conjunction with safety signs where it is necessary to prevent or limit employee access to work areas containing energized conductors or circuit parts. Copyright Bob Herzig & Associates 2015 Arc Flash Hazard Assessment Article 130.7(E)(3) Attendants. If signs or barricades do not provide sufficient warning and protection from electrical hazards, an attendant shall be stationed to warn and protect employees. Panelboard Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Arc Flash Hazard Assessment Arc Flash Hazard Assessment MCC (Motor Control Center) Switchboard Switchboard Main Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Arc Flash Hazard Assessment Overhead Bus Ducts Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Wear the Proper PPE Arc Rating The value attributed to materials that describes their performance to exposure to an electrical arc discharge. The arc rating is expressed in cal/cm². Whether your clothing is FR or AR rated you are okay if it is tested to the ASTMF-1506-10A standard. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Extrapolated data from IEEE – “The Other Electrical Hazard: Electric Arc Blast Burns” – by Ralph H. Lee Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 XYZ CLOTHING INC. MADE IN U.S.A. FLAME RESISTANT 88% COTTON 12% NYLON ARC RATING 8.6 ATPV XXL-LN ASTM-F-1506 Example Clothing Tag
Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Factors for Selecting PPE Electrical clothing must now be Arc-Rated (AR) instead of Flame Resistant (FR). Explanation: FR clothing is designed to protect against ignition but does not account for the violent force of an arc flash event. Shall cover all ignitable clothing Shall cover all parts of the body (no short sleeves or cuffed shirts) Hairnets, beard nets, and high visibility vests shall be arc rated (or removed when within the arc flash boundary) AR clothing is designed to have resistive abilities to arc flash events. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Factors for Selecting PPE Outermost layer shall be arc rated Meltable fibers shall not be worn under clothing (i.e., Under Armour or elastic underwear) Laundering choices should be carefully considered as some detergents and fabric softeners can negate the arc rating Copyright Bob Herzig & Associates 2015 Article 100 Definition Balaclava (Sock Hood) - An arcrated hood that protects the neck and head except for the facial area of the eyes and nose. Copyright Bob Herzig & Associates 2015 An arc flash assessment analysis will not only determine where to wear AR clothing with higher cal/cm² ratings, but also where you can wear clothing with a lower cal/cm² ratings. Hand Protection Which is safer for troubleshooting an AF PPE Category 1 cabinet? Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Insulated Gloves Copyright Bob Herzig & Associates 2015 Insulated Gloves Insulated Gloves must be lab tested or replaced after 6 months of use Testing is good for one year, but once gloves are worn the 6 month clock begins [refer to OSHA CFR 1910.137(B)] Copyright Bob Herzig & Associates 2015 Insulated Gloves Insulated gloves must be field tested before every use [refer to OSHA CFR 1910.137(c)(2)(ii)] Insulated Gloves Insulated gloves must be removed from service if there is any defects, malformations, gaps, or other compromise in insulative integrity [refer to OSHA CFR 1910.137(c)(2)] Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Vision Protection Face shields provide UV & Infrared Protection. Safety Glasses should also be worn underneath face shields for additional protection Hearing Protection Hearing Protection should always be a part of arc flash PPE!!! Impact noise of an arc flash can rupture ear drums or cause permanent hearing loss. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 ANSI Markings – Footwear 1910.136(b)(1) Indicates ANSI standard met PT indicates “protective toe” portion of standard Indicates Male or Female Impact resistance Compression resistance (Cd) conductive properties (EH) electrical hazard (Mt) metatarsal resistance rating, (PR) puncture resistance (SD) static dissipative properties. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Less than 1.2 cal/cm 2 Hard Hat Herzig Engineering Warning Labels WARNING Safety Glasses Hearing Protection Untreated Natural Fiber Shirt Leather Protectors Qualified Persons Only Arc Flash and Shock Hazards Appropriate PPE Required REVIEW SAFE WORK PRACTICES PRIOR TO WORK 10 Inch 0.49 cal/cm 2 Arc Flash Protection Boundary AF Incident Energy @ Working Distance: 18 Inch Recommended (minimum) PPE: Untreated Cotton Long-sleeve Shirt & Long Pant, Safety Glasses, Hearing Protection, Voltage-Rated Electrical Gloves w/ Leather Protector. 0 480 VAC 00 42 Inch 12 Inch Shock Hazard Glove Class Limited Approach Restricted Approach Insulated Rubber Gloves Untreated Natural Fiber Pants Leather Uppers/ Rubber Soles PPE LEVEL 0 Job# 2014-00-00-00-BHA Prepared 08/28/14 Location: AIR COMP Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Herzig Engineering Warning Labels Herzig Engineering Warning Labels WARNING WARNING Qualified Persons Only Qualified Persons Only Arc Flash and Shock Hazards Appropriate PPE Required Arc Flash and Shock Hazards Appropriate PPE Required REVIEW SAFE WORK PRACTICES PRIOR TO WORK REVIEW SAFE WORK PRACTICES PRIOR TO WORK 31 Inch 2.9 cal/cm 2 Arc Flash Protection Boundary AF Incident Energy @ Working Distance: 18 Inch Recommended (minimum) PPE: AR (meet or exceed calculated Incident Energy) LS Shirt & Pants (or coverall), Balaclava, Hardhat Arc Rated Face Shield w/wraparound guard (or flash suit hood), Safety Glasses, Hearing Protection, Voltage-Rated Electrical Gloves with leather protectors, Heavy-duty Leather work shoes. 1 480 VAC 00 42 Inch 12 Inch Shock Hazard Glove Class Limited Approach Restricted Approach Location: Disconnect Extruder Copyright Bob Herzig & Associates 2015 Job# 2014-00-00-00-BHA Prepared 08/28/14 46 Inch 5.5 cal/cm 2 Arc Flash Protection Boundary AF Incident Energy @ Working Distance: 18 Inch Recommended (minimum) PPE: AR (meet or exceed calculated Incident Energy) LS Shirt & Pants (or coverall), Balaclava, Hardhat Arc Rated Face Shield w/ wraparound guard (or flash suit hood), Safety Glasses, Hearing Protection, Voltage-Rated Electrical Gloves with leather protectors, Heavy-duty Leather work shoes. 2 480 VAC 00 42 Inch 12 Inch Shock Hazard Glove Class Limited Approach Restricted Approach Location: Machine Panel Copyright Bob Herzig & Associates 2015 Job# 2014-00-00-00-BHA Prepared 08/28/14
AF PPE Category 1 & 2 ARBalaclava Safety Glasses Herzig Engineering Warning Labels WARNING Face Shield Arc Rated Shirt min. AR8 cal/cm 2 Leather Protectors Arc Rated Pants min. AR8 cal/cm 2 Hearing Protection Qualified Persons Only Arc Flash and Shock Hazards Appropriate PPE Required Insulated Rubber Gloves Leather Uppers/ Rubber Soles AF PPE LEVEL 1 & 2 Copyright Bob Herzig & Associates 2015 REVIEW SAFE WORK PRACTICES PRIOR TO WORK 67 Inch 10 cal/cm 2 Arc Flash Protection Boundary AF Incident Energy @ Working Distance: 18 Inch Recommended (minimum) PPE: AR (meet or exceed calculated IE) LS Shirt & Pant (or AR Coverall) w/ AF Suit and Hood so system meets min required rating, Hardhat AR hard hat liner or balaclava, Safety Glasses, Hearing Protection, Voltage-Rated Electrical Gloves with leather protectors, Heavy-duty Leather work shoes. 3 480 VAC 00 42 Inch 12 Inch Shock Hazard Glove Class Limited Approach Restricted Approach Job# 2014-00-00-00-BHA Prepared 08/28/14 Location: Bus Duct A Copyright Bob Herzig & Associates 2015 AF PPE Category 3 & 4 Safety Glasses Herzig Engineering Warning Labels Arc Rated Bee-Keeper Style Hood Arc Rated Jacket min. AR40 cal/cm 2 Arc Rated Pants min. AR40 cal/cm 2 Hearing Protection Insulated Rubber Gloves Leather Protectors Leather Uppers/ Rubber Soles AF PPE LEVEL 3 & 4 Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Herzig Engineering Danger Label WARNING Qualified Persons Only NO SAFE PPE EXISTS ENERGIZED WORK PROHIBITED REVIEW SAFE WORK PRACTICES PRIOR TO WORK 329 Inch 140 cal/cm 2 Arc Flash Protection Boundary AF Incident Energy @ Working Distance: 18 Inch Recommended (minimum) PPE: No Adequate PPE to protect against all Hazards at this Calculated Incident Energy Level 480 VAC 00 42 Inch 12 Inch Shock Hazard Glove Class Limited Approach Restricted Approach Job# 2014-00-00-00-BHA Prepared 08/28/14 Due to the explosive effect of some arc events, physical trauma injuries could occur. The PPE requirements of 130.7 do not address protection against physical trauma other than exposure to the thermal effects of an arc flash. Location: Main Switchgear Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Verification of an Electrically Safe Work Condition An electrically safe work condition shall be achieved when performed in accordance with the procedures of 120.2 and verified by the following process: (1) Determine all possible sources of electrical supply to the specific equipment. Check applicable up-to-date drawings, diagrams, and identification tags. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Electrical Safety Tip: Panel Schedules & One-Line Diagrams are great references for determining sources of energy Verification of an Electrically Safe Work Condition An electrically safe work condition shall be achieved when performed in accordance with the procedures of 120.2 and verified by the following process: (2) After properly interrupting the load current, open the disconnecting device(s) for each source. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Verification of an Electrically Safe Work Condition Verification of an Electrically Safe Work Condition An electrically safe work condition shall be achieved when performed in accordance with the procedures of 120.2 and verified by the following process: An electrically safe work condition shall be achieved when performed in accordance with the procedures of 120.2 and verified by the following process: (3) Wherever possible, visually verify that all blades of the disconnecting devices are fully open or that drawout type circuit breakers are withdrawn to the fully disconnected position. Copyright Bob Herzig & Associates 2015 (4) Apply lockout/tagout devices in accordance with a documented and established policy. Copyright Bob Herzig & Associates 2015
How reliable is your LOTO program? Copyright Bob Herzig & Associates 2015 How reliable is your LOTO program? Copyright Bob Herzig & Associates 2015 Verification of an Electrically Safe Work Condition An electrically safe work condition shall be achieved when performed in accordance with the procedures of 120.2 and verified by the following process: (5) Use an adequately rated test instrument to test each phase conductor or circuit part to verify it is deenergized. Test each phase conductor or circuit part both phase-to-phase and phase-to-ground. Before and after each test, determine that the test instrument is operating satisfactorily through verification on a known voltage source. Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Verification of an Electrically Safe Work Condition An electrically safe work condition shall be achieved when performed in accordance with the procedures of 120.2 and verified by the following process: (6) Where the possibility of induced voltages or stored electrical energy exists, ground the phase conductors or circuit parts before touching them. Where it could be reasonably anticipated that the conductors or circuit parts being de-energized could contact other exposed energized conductors or circuit parts, apply ground connecting devices rated for the available fault duty. Copyright Bob Herzig & Associates 2015 Now in Practical Terms: (1) Determine all sources of electricity (2) Open all disconnecting means (3) Visually verify open disconnects (4) LOTO (5) Triple Test (check voltage detector, check voltage, recheck voltage detector) (6) Grounded if determined necessary Copyright Bob Herzig & Associates 2015 Article 120.2 De-energized Electrical Equipment That Has LOTO Devices Applied All electrical conductors or circuit parts shall be considered energized until all possible sources of energy are removed and verified to be removed! Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Is EPM a Safety Issue? Copyright Bob Herzig & Associates 2015 If the equipment is: 1. Properly installed 2. Properly maintained 3. There is no evidence of impending failure There may be no need for Arc Flash PPE For tasks such as: Normal operation of a circuit breaker, switch, contactor, or starter Removal of covers for equipment such as wireways, j-boxes, or cable trays Copyright Bob Herzig & Associates 2015 Conductive dust can cause an arc flash! Copyright Bob Herzig & Associates 2015 Informational Note: The phrase properly installed means that the equipment is installed in accordance with applicable industry codes and standards and the manufacturer’s recommendations. The phrase properly maintained means that the equipment has been maintained in accordance with the manufacturer’s recommendations and applicable industry codes and standards. The phrase evidence of impending failure means that there is evidence such as arcing, overheating, loose or bound equipment parts, visible damage, or deterioration. Copyright Bob Herzig & Associates 2015
(B) Maintenance. The electrical safety program shall include elements that consider condition of maintenance of electrical equipment and systems. Copyright Bob Herzig & Associates 2015 Developing an EPM Program DOCUMENTATION Compiling a list of all electrical devices within your facility that need to be inspected, tested, and serviced. Developing complete one-lines of how system functions from utility source to the point of power utilization. – – – – – Mechanical work Electrical heating Illumination Electronic devices Etc. Schedules developed as to the frequency of inspections, testing, and servicing. Copyright Bob Herzig & Associates 2015 205.3 General Maintenance Requirements. Electrical equipment shall be maintained in accordance with manufacturers’ instructions or industry consensus standards to reduce the risk associated with failure. The equipment owner or the owner’s designated representative shall be responsible for maintenance of the electrical equipment and documentation. Copyright Bob Herzig & Associates 2015 Developing an EPM Program INSPECTION This would include visual inspections to assure the following: – Equipment is still operating as originally installed per UL listing – All covers are in place and fastened down – Equipment has not been degraded by deteriorating agents – Environmental conditions have not degraded – Equipment is not warped or discolored from excessive heat – All equipment is securely fastened Copyright Bob Herzig & Associates 2015
Developing an EPM Program INSPECTION – Infrared inspection is performs to determine thermal hot spots To determine loose connections that are generating heat and need to be tightened Devices that have had insulation damage Overloaded circuit conditions – Noise level monitoring to uncover bearing issues, eddy current issues, harmonic problems and the like. – Conductor insulation is intact and not damaged by excessive heat. – Handles and other operators are functioning properly and not broken or compromised – Panel schedules and switchgear directories are up-to-date and accurate Copyright Bob Herzig & Associates 2015 Developing an EPM Program TESTING System voltages measured and reviewed to assure levels within operating parameters of electrical equipment Power factor measurements to assure favorable purchase power levels Harmonic testing to reduce equipment damage from all unwanted orders of harmonics Generators at tested to assure they will operate when called upon. UPS’s tested GFCI’s tested Conductor insulation resistance and hi-pot tested to check for insulation breakdowns Copyright Bob Herzig & Associates 2015 Developing an EPM Program TESTING All overcurrent devices (OCP’s) such as fuses, circuit breakers, protective relays, and motor overloads are tested to assure they will function as designed since they are the safety valves for the electrical systems – Fuses are given resistance and continuity tests to assure function. – Circuit breakers are tested with a test current generator to assure they trip at specified amperage levels – Protection relays and overloads are tested with a test current generator to assure they trip at specified amperage levels. – Ground fault protection systems are set properly and will trip at their settings. Copyright Bob Herzig & Associates 2015 Developing an EPM Program SERVICING Annual operation of circuit breaker handles to assure freedom of movement Filter replacement Louvers and grills cleaned Luminaire replacements Equipment cleaning – Removal of dust, debris and foreign materials Lubrication and greasing of motor bearings Copyright Bob Herzig & Associates 2015
NOTE: Heat is the big nemesis of electrical equipment. Much of what is done above is to determine if higher heat is present than the equipment is designed to see and function at properly. Copyright Bob Herzig & Associates 2015 Voltage Meters Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Who Sets the Rules on Test Instrument Standards? Article 110.4(1) Testing Only qualified persons shall perform tasks such as testing, troubleshooting, and voltage measuring within the LAB or energized electrical conductors or circuit parts operating at 50 volts or more or where an electrical hazard exists. Copyright Bob Herzig & Associates 2015
Who Sets the Rules on Test Instrument Standards? ANSI This standard establishes an important fourcategory system for rating the electrical hazards electricians face when taking measurements on so-called “low voltage” equipment — up to 1000 volts. Copyright Bob Herzig & Associates 2015 Questionable Meter Electrical Safety Tip: Make sure your meter is a minimum CAT III at 600 Volts. Most commercial and industrial electricians work in a CAT III or CAT IV environment--sometimes without even knowing it. Copyright Bob Herzig & Associates 2015 Good Meter ANSI/ISA S82.02 Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
Should not be used! Insulated Tools Improperly Rated Meters Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 ASTM F1505 Purposes of Insulated Tools Little to no fault potential! Rated for 1000 Volts Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015
If there is any gaps in insulation, the tool must be removed from service immediately. Yellow Underlayer Insulated tools come in all shapes and sizes Orange Coating Copyright Bob Herzig & Associates 2015 Copyright Bob Herzig & Associates 2015 Your Feedback Matters! We appreciate any and all feedback. Please take a minute to fill out our brief online survey! arcflashconsultants.com/feedback 816-734-8300 Marcy Hall mhall@bobherzig.com Bob Herzig bherzig@bobherzig.com Stephen Herzig sherzig@bobherzig.com Bob Marshall bmarshall@bobherzig.com Copyright Bob Herzig & Associates 2015
130.5 Arc Flash Risk Assessment. An arc flash risk assessment shall be performed and shall: (1) Determine if an arc flash hazard exists. If an arc flash hazard exists, the risk assessment shall determine: a) Appropriate safety-related work practices b) The arc flash boundary c) The PPE to be used within the arc flash boundary
Arc Flash Facts Arc Flash Fact Sheet Brady Arc Flash Training Aids Promote awareness of the dangers associated with arc flash accidents and make sure your workers know how to protect themselves! Poster Highlights the common causes of arc flash and provides safe work practices and personal protection equipment requirements
Arc-flash analysis has been performed for this site (calculations, labeling and Arc-flash hazard analysis. arc-flash boundaries). Electrical safety training for operators and maintenance personnel. Arc-flash hazard training for operators and maintenance personnel. Arc-flash hazard training focusing on selecting and using the proper PPE.
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provides an overview of arc flash hazards, arc flash calculations, and suggest a means of reducing the arc flash hazard level through faster detection and clearing of arc flash electrical faults. I. INTRODUCTION The last few years has seen a great increase in the
Arc Flash Training (NFPA 70E - 110.6) Personnel exposed to Arc Flash Hazards shall be trained in: Identifying potential Arc Flash Hazard tasks and locations The safe work practices necessary to eliminate injury from an Arc Flash Hazard The use and care of PPE. NFPA-70E 2018 Retraining
Oberon arc flash suits do not provide insulation from electric shock. Oberon arc flash suits when properly selected and worn are designed to provide protection from burn injuries resulting from an electrical arc flash in accordance with ASTM F1506 & NFPA 70E. It is important to note that Oberon arc flash suits will provide limited or
Bussmann series arc flash relay system 1. Introduction Eaton's BussmannTM series arc flash relay (EAFR) system is a combination of arc flash relay modules and sensors designed to detect and clear arc flash events in low and medium voltage electrical assemblies. An arc fault is the most devastating type of fault in medium
Equality Act 2010 and the Health and Social Care Act 2012). Colleagues in Local Government have a key role to play in this area. After all, good health starts at home, and local authorities manage many of the important assets: the housing, the budget for aids and adaptations, local planning decisions, green spaces etc. Hence, local areas are encouraged to take a joined-up, place-based approach .
