Electric Portable Power Tool Safety
Contents
1. Moines IA 50309 800 447 2295 e www emcins com CNC Coss other end is grounded through a prong on the plug Anytime an adapter is used to accommodate a two hole receptacle the adapter wire should be attached to a known ground The third prong should never be removed from the plug Double insulation is the more convenient of the two methods The user and the tools are protected in two ways by normal insulation on the wires inside and by a housing that cannot conduct electricity to the operator in the event of a malfunction To protect against electrical shock hazards the U S Consumer Product Safety Commission recommends the use of a ground fault circuit interrupter GFCI with every power tool A GFCI constantly monitors current flowing into a circuit to sense any loss of current If the current flowing through two circuit conductors differs by a very small amount the GFCI instantly interrupts the current flow to prevent a lethal amount of electricity from reaching the operator The operator may feel a painful shock but will not be electrocuted Most of the 20 30 electrocution deaths each year associated with power drills saws sanders hedge trimmers and other electric power tools could have been prevented if a GFCI had been used For Additional Information Occupational Safety amp Health Administration www osha gov e Construction eTool e Hand and Power Tools Consumer Product Safety Commission WWW CPSC gOoVv EMC Los2. Power Tool Safety M7 EMC Insurance Companies It is likely that most people were first exposed to portable power tools at an early age They watched others use the tool until they were called upon to help in a project The primary objective was to get the job done Safety and training may have been secondary or nonexistent to that first time tool user They may have learned to use the tool in a safe manner only after incurring a near accident or bodily injury Also some new employees may not have previously used the tool s that are required to perform their job It is a good practice to ask new employees about their previous experience with each tool they will use and determine if they know how to use them safely If there is any doubt regarding their ability to do so training should be conducted Safe Tool Operations Use the proper tool for the job For power tools follow the manufacturer s recommended usage Keep the tools in good operating condition The operator should inspect the tool prior to use and should not knowingly use a tool in poor condition If a central tool crib exists within the organization the attendant should inspect each tool as it is returned Any tool in poor condition should be repaired or replaced The tool crib attendant should also inspect the condition of fasteners when a new tool is received from a vendor Do not remove reposition or tamper with safety guards provided by the manufacturer Guard
3. d tag them Do Not Use e Do not operate equipment with damaged cords e Wear the proper safety equipment for protection when working with tools Personal Protective ee Equipment Work Condition Anytime a particle could Saleh Goggle fall of fly into eyes Using grinders buffing wheels etc If tool or work could fall on the foot Face Shields Safety Shoes Using rotary cutting tools Hearing Protection jackhammers etc Using rotary tools such as Hair Restraint drills saws grinders etc DO NOT wear gloves ties or loose clothing or jewelry Using rotary tools such as drills saws grinders etc Electrical Hazards Employees using electric tools should be aware of several dangers the most serious being electrocution Burns and slight shocks which can lead to injuries or even heart failure are among the major hazards associated with electric power tools Under certain conditions even a small amount of current can result in fibrillation of the heart and eventual death A shock also can cause the user to fall off a ladder or other elevated work surface To protect the user from shock tools should have either of the following a three wire cord with ground and be grounded or be double insulated Three wire cords contain two current carrying conductors and a grounding conductor One end of the grounding conductor connects to the tool s metal housing The gt Home Office 717 Mulberry Des
4. s should only be removed to clean repair or replace component parts When the guard is removed for those reasons disconnect the power source first Keep tools in a safe and proper place Tools and power cords should not be left on the floor where they present a trip hazard Tools used in overhead areas should have a safety line attached to prevent them from falling on people below e Never leave a power tool unattended in a place where unauthorized people could attempt to operate it Only trained operators should use power tools Store tools in a dry place when not in use Do not use electric tools in damp or wet locations Never carry a tool by the cord or hose Never yank the cord or hose from the receptacle to disconnect Keep cords and hoses away from heat oil and sharp edges Disconnect tools when not in use before servicing and when changing accessories such as blades bits and cutters Keep all observers at a safe distance from the work area Secure work with clamps or a vise freeing both hands to operate the tool e Avoid accidental starting Do not hold fingers on the switch button while carrying a plugged in tool Maintain tools with care Follow instructions in the user s manual for lubricating and changing accessories e Be sure to maintain solid footing and good balance when using tools i Continued www emcins com e Remove all damaged portable electric tools from use an
5. s Prevention Information Manual www emcins com e Hand Tools Choice Disclaimer This material is designed and intended for general information purposes only and is not intended nor shall be construed or relied upon as specific legal advice Copyright Employers Mutual Casualty Company 2011 All rights reserved Image 2010 JupiterImages Corporation 6183 9 11
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