0000006152 00000 n 0000004921 00000 n b.Electrical tools SECTION #4 | Participant Guide 2 Electrical Safety mELECTRICAL SAFETYm mACTIVITY 1 - GROUNDINGm In your small group, read fact sheets A and B, and the following scenario. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. a.related to muscle damage. 0000009628 00000 n -Voltage= a measure of electrical force. stream Extension cords had poor splices, no grounds, and reversed polarity. s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW` { endstream endobj 191 0 obj [/ICCBased 211 0 R] endobj 192 0 obj <> endobj 193 0 obj <> endobj 194 0 obj <> endobj 195 0 obj <> endobj 196 0 obj <>stream The ground wire was not attached on the male end of the cord's plug. OSHA 29 CFR 1910.147 . One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Select the correct answer and then click DONE. Occupational Safety & Health Administration, Death Due to Lack of Ground-Fault Protection, Deaths Due to Missing or Discontinuous Path to Ground, Deaths Due to Equipment Not Used in Manner Prescribed, Deaths Due to Improper Use of Extension and Flexible Cords, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Improper use of extension and flexible cords, Electrical Safety: Safety and Health for Electrical Trades Student Manual, ground-fault circuit interrupters (GFCI)s, assured equipment grounding conductor program (AEGCP), Electricity and Tree Care Work A Deadly Combination, Working Safely Around Downed Electrical Wires, Electrical Safety Hazards of Overloading Cable Trays, Small Business Safety and Health Handbook, Fire Fighters Exposed to Electrical Hazards During Wildland Fire Operations, Fatality Assessment and Control Evaluation (FACE) Program, NIOSH Face Reports Indexed by Industry or Cause of Fatality, Worker Deaths by Electrocution: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. 1.Missing or broken path to ground. Select the correct answer and then click DONE. 0000024814 00000 n Which of the following can be the result of electric shock? 0000015549 00000 n If you are touching any grounded material while using a power tool 0000008392 00000 n using a 30-amp breaker in a system with 15- or 20-amp receptacles. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp b.10 feet c.Wood Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 30 days B. D 600v. <> Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. Select the correct answer and then click DONE. When used on the moon? b.Yes, because Bob was on . 0000001814 00000 n She finds several available in the shop. 3.Needs to be reset 2.Skin The contact lasts for 5 seconds before someone is able to shut off the power. No GFCI's were used. endobj Which of the following are insulators of electricity? 0000419562 00000 n 2 0 obj d. Power outlets, ________ are anything that can transmit electrical current. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. d.Water, Other electrical hazards in the workplace include: Electrical hazards are life threatening incidents that could happen due to electricity. c.15 feet 0000010603 00000 n a.Two-prong plug _5JKy. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 0000108920 00000 n 0000414648 00000 n 0000002385 00000 n 0000007694 00000 n The floor is covered in water and she is barefoot. Select the correct answer and then click DONE. 0000004274 00000 n 2.Is working properly Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 2.Using an aluminum ladder when the possibility exists for contact with electricity. %PDF-1.5 c.Three-prong plug 0000006866 00000 n 0000005050 00000 n Wearing a baseball cap 1.Extension cords A laborer carried a piece of wire reinforcement (10 feet long by 8 inches wide) along the top section of the scaffold and contacted the power line with it. b.Metal 0000057373 00000 n specifically addresses electrical protective devices. Ground all power supply systems, electrical circuits, and electrical equipment. 0000001908 00000 n and more. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. 12 months C. 6 months D. Never Q23. Question 2: Which of the following are ways employers must protect their employees on the workplace? a.Conductive objects OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. The following hazards are the most frequent causes of electrical injuries Contact with power lines, Lack of ground-fault protection, Path to ground missing or discontinuous, Equipment not used in manner prescribed, and Improper use of extension and flexible cords. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. -Grounding= a conductive connection to the earth which acts as a protective measure. 3.The length of time the body is in contact with electricity Check your employee's electrical safety knowledge through an electrical safety quiz. c. Inductive objects A) 120v . <> Look for overhead power lines and buried power line indicators. 0000013716 00000 n The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Then answer the questions below. gYpV:+ Potential hazards of electricity are preventable if you do which of the following listed below? The victim was totally deaf in one ear and suffered diminished hearing in the other. 0000003603 00000 n 0000004444 00000 n A co-worker disconnected the power cord to the saw, too late to save the victim. Before using the equipment, be sure that the ground wire: Explosion % Find the energy required to raise an electron from the n=4n=4n=4 state to the n=5n=5n=5 state in Li2+\mathrm{Li}^{2+}Li2+ and in hydrogen atom. Use tools and equipment according to the instructions included in their listing, labeling or certification. Electrocution. An 18-year-old worker at a construction site was electrocuted when he touched a light fixture while descending from a scaffold for his afternoon break. 0000010155 00000 n Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Examples of Equipment That Can Contact Power Lines. b. d) All of the above. Which of the following can be caused by exposure to an arc flash? 4.Cardiac arrest The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . Question 2: Which of the following are ways . 0000000816 00000 n HWMo#7v#h>6,Z4- a.A small current HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8H`Bkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z "*D All of the following are essential considerations for the safe use of cords and wiring EXCEPT: Which one of these methods is not acceptable for putting out an electrical fire? 3.No, because he will not be touching any grounded material when using the tool. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 2 0 obj There are many types of hazards - chemical, ergonomic, physical, and psychosocial, to name a few - which can cause harm or adverse effects in the workplace. One hand drill was not grounded, and the other had no safety plate. Question 3: A/an ____________ is a unit of measurement for electrical resistance. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. High humidity 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: A fan connected to a 120-volt electrical system via an extension cord provided ventilation for a worker performing a chipping operation from an aluminum stepladder. endobj Before work began, the company safety director made sure that insulated line hoses were placed over sections of the the power line near the jobsite and that a safety clearance zone was marked off for arriving cement trucks. D. near other electrical equipment. If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. c.A measurement of electricity Ground all exposed metal parts of equipment. 0000017163 00000 n uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 3.Clear d.A power tool, A GFCI is designed to: d.The body of the power tool. There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted. Overview. Extension cords are used to: 0000028595 00000 n The victim provided a path to ground and was electrocuted. In addition to contact with power lines, the top electrical hazards include: [Power Tools]. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. [, Do not modify cords or use them incorrectly. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. This standard also includes safe work practices for employees performing other work activities that can expose them to electrical hazards as well as safe work practices for the following: (1) Installation of conductors and equipment that connect to the supply of electricity (2) Installations used by the electric utility, such as office . OSHA will keep all identities confidential. 0000055319 00000 n Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. c. No, because the electricity is needed on a long-term basis. -Wood. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB The victim signaled the operator of the crane to extend the boom and lower the hoist cable. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ Select the choices that accurately define the common electrical term. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 2. Which of the following are caused by contact with electricity? The modification of the plug was not an intended use or prescribed by the manufacturer. Muscular contraction and nerve damage occur; death likely. a.20,000 volts What is the minimum clearance distance you must maintain from the power lines? Which of the following are conductor of electricity?

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