www.kitcarecorp.com info@kitcarecorp.com 484 Call us today at 1-800-387-1858 or 416-243-3030 Lockout & Tagout Information J. SMITH 06/06/00 WHAT IS LOCKOUT / TAGOUT? INTRODUCTION Most industrial accidents are caused by the unexpected energization or start up of machines or equipment or by the uncontrolled release of energy. Many of these accidents can be prevented by proper LOCKOUT / TAGOUT procedures. OSHA’s LOCKOUT / TAGOUT standard, 29 CFR & 1910.147 & 1910.269 are designed to prevent needlessdeaths and serious injuries to service and maintenance personnel by controlling unauthorized or accidental use of energy. To perform service and maintenance work on industrial equipment safely, you must understandthe importance of energy control and OSHA’s LOCKOUT / TAGOUT standard. You must also know how to apply energy isolation and LOCKOUT / TAGOUT. WHAT IS LOCKOUT/ TAGOUT? A LOCKOUT is a method of keeping equipment from being set in motion and endangering workers. A disconnect switch, circuit breaker, valve or other energy isolation mechanismis put in the safe or off position. A device is often placed over the energy-isolating mechanismto hold it in the safe position. This is where KIT CARE LOCKOUT / TAGOUT products are essential A lock is attached so that the equipment can’t be energized. In a TAGOUT, the energy-isolating device is placed in the safe position and a written warning is attached to it. All lockout and tagout materials are supplied by the employer. Each device must be: WHEN SHOULD YOU LOCKOUT/TAGOUT? LOCKOUT / TAGOUT is necessary whenever you are performingservice or maintenance in proximity to a machine where you could be injured by: Unexpected start up of the equipment. Release of stored energy. Two situations are most likely to need LOCKOUT / TAGOUT: When you must remove or bypass a guard or other safety device. When you must place any part of your body where you could be caught by moving machinery. Some jobs for which LOCKOUT / TAGOUT should be used are: Repairing electricalcircuits. Cleaningor oiling machinery with moving parts. Clearing jammed mechanisms. OSHA lets each employeruse LOCKOUT / TAGOUT or both. It’s your responsibility to follow whichever systemhas been chosen for your workplace. Locks and Tags by themselves do not de-energize equipment.Attach them only after the machinery has been isolated from its energy sources. APPLYING LOCKOUT/TAGOUT Energy isolation and LOCKOUT / TAGOUT are to be applied only by trained employees authorized to perform service or maintenance. Before LOCKOUT / TAGOUT is applied, all employees who work in the affected area must be notified. OSHA requires that control of hazardous energy be done according to a six-step procedure. 1 PREPARATION FOR SHUTDOWN Before you turn off any equipment in order to lock or tag it out, you must know: The types and amounts of energy that power it. The hazards of that energy. How the energy can be controlled. 2 EQUIPMENT SHUTDOWN Shut the systemdown by using its operating controls. Follow whatever procedure is applicablefor the equipment,so that you don’t endangeranyone during shutdown. 3 EQUIPMENT ISOLATION Install all energy-isolating devices so that the equipmentis isolated from its energy sources. Be sure to isolate all energy sources and secondary power supplies as well as the main one. Never pull an electricalswitch while it is under load. Never remove a fuse instead of disconnecting the energy or power. 4 APPLICATION OF LOCKOUT / TAGOUT DEVICES All energy-isolating devices are to be locked, tagged or both according to your company LOCKOUT/TAGOUT procedures. Only the standardized devices supplied by your employer are to be used for LOCKOUT / TAGOUT, and they are not to be used for anything else. Use a LOCKOUT device if your lock cannot be placed directly on the energy control. When LOCKOUT is used, every employee can lock out a single energy-isolating device by using a multiple-lock hasp. For big jobs, a LOCKOUT box can be used to maintaincontrol over a large number of padlocks and keys. If tags are used instead of locks, attach them at the same point as you would a lock, or as close to it as possible. Fill tags out completelyand correctly. 5 CONTROL OF STORED ENERGY Take any of the following steps that are necessary to guard against energy left in the equipment after it has been isolated from its energy sources. Inspect the systemto make sure all parts have stopped moving. Install ground wires. Relieve trapped pressure. Release the tension on springs, or block the movement of spring-driven parts. Block or brace parts that could fall because of gravity. Block parts in hydraulic and pneumatic systemsthat could move from the loss of pressure. Bleed the lines and leave vent valves open. Drain process piping systemsand close valves to prevent the flow of hazardous materials. If a line must be blocked where there is no valve, use a blank flange. Purge reactor tanks and process lines. Dissipateextreme cold or heat, or wear protective clothing. If stored energy can reaccumulate,monitor it to make sure it stays below hazardous levels. 6 EQUIPMENT-ISOLATION VERIFICATION Take any of the following steps that fit your company’s equipment and energy control program. Make sure all dangerareas are clear of personnel. Verify that the main disconnect switch or circuit breaker can’t be moved to the“on” position. Use a voltmeter or other equipment to check the switch. Press all start buttons and other activatingcontrols on the equipment itself to ensure that it is isolated. Shut off all machine controls when the testing is finished. PERFORMING THE WORK Look ahead, and avoid doing anything that could re-activate the equipment. Don’t bypass the lockout when putting in new piping or wiring. WARNING These procedures alone do not give you all the tools you need to work safely around hazardous machinesand energy sources. Your employermust have a written procedure and you must be trained in the use of LOCKOUT/TAGOUT devices. It is up to you to guard all workers and your own life and health by complying with these rules. Durable, to withstandwear. Substantial, so it won’t come off easily. Capable of identifying the person who applied it. Many companies issue each worker authorized to apply LOCKOUT/TAGOUT their own personallock imprinted with his name.