Lockout/Tag out : OSH Answers
Despite this, lockout/tagout (LOTO) continues to be found in OSHA's top 10 most lockout devices are designed to meet a specific application. Lockout-tagout (LOTO) or lock and tag is a safety procedure which is used in industry and The locking and tagging of the isolation point lets others know not to . Lockout-Tagout Procedures (documentation); Lockout-Tagout Training (for. Specific Procedures for Energy Control and Control Circuitry Prohibition Sequential steps for placing, removing, and transferring lockout/tagout devices are also When all conditions of the exception are met, the standard does not require the All energy isolating devices used to control the energy to the machine or.
If this is not feasible, block the parts that may move if there is a possibility that the spring can transfer energy to it. Gravitational potential energy - Use a safety block or pin to prevent the part of the system that may fall or move. Chemical energy - locate chemical supply lines to the system and close and lockout the valves. Dissipation removal of residual or stored energy In general, examples include: Electrical energy - To find a specific method to discharge a capacitor for the system in question, contact the manufacturer for guidance.
Many systems with electrical components, motors, or switch gears contain capacitors. Capacitors store electrical energy. In some cases, capacitors hold a charge and may release energy very rapidly e. In other cases, capacitors are used to remove spikes and surges in order to protect other electrical components.
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Capacitors must be discharged in the lockout process in order to protect workers from electrical shock. Hydraulic and Pneumatic potential energy - Setting the valves in the closed position and locking them into place only isolates the lines from more energy entering the system.
In most cases, there will still be residual energy left in the lines as pressurized fluid.
This residual energy can be removed by bleeding the lines through pressure relief valves. Verify depressurization or use flange-breaking techniques. Contact the manufacturer for more specific details, or if no pressure relief valves are available, what other methods are available.
Mechanical potential energy - Carefully release energy from springs that may still be compressed. If this is not possible, use blocks to hold the parts that may move if the energy is released. Gravitational potential energy - If feasible, lower the part to a height where falling is impossible.
If this is not possible, contact the manufacturer for guidance. Each lock should only have one key no master keys are allowed. There should be as many locks on the system as there are people working on it. For example, if a maintenance job requires 3 workers, then 3 locks should be present - each of the individuals should place their OWN lock on the system. Locks can only be removed by those who installed them, and should only be removed using a specific process - see step 9 below.
Example of multiple locks on a lockout tag 7. Verify Isolation Verify that the system is properly locked out before beginning any work. Verification can take place in several ways: The machine, equipment, or process controls push buttons, switches, etc.
No response means isolation is verified. Return controls to the safe position off. Electrical connections to make sure they are open. Suspended parts are lowered to a resting position or blocked to prevent movement. Other devices that restrain machine or process movement. Valve positioning for double block and bleed for pipes or ducts - closing two valves of a section of a line, and then bleeding or venting the section of the line between the two closed valves.
Presence of solid plate used to absolutely close a line - called line blanking for pipes or ducts. Any other acceptable method of energy isolation.
Testing of the equipment: Test circuitry should be done by a certified electrician - note: Check pressure gauges to make sure hydraulic and pneumatic potential energy has been removed. Check temperature gauges to make sure thermal energy has been discharged. Choose the method that will best make sure that the energy to the system has been isolated without creating other hazards during the verification. Perform Maintenance or Service Activity Complete the activity that required the lockout process to be started.
Inspect the work area to make sure all tools and items have been removed. Confirm that all employees and persons are safely located away from hazardous areas. Verify that controls are in a neutral position.
Remove devices and re-energize machine. Notify affected employees that servicing is completed. This practice helps make sure those employees working on the system are not in a hazardous area when the machine is restarted. Who is responsible for the lockout program?
Each party in the workplace has a responsibility in the lockout program. Management is responsible for: Drafting, periodically reviewing, and updating the written program.
Hazardous Energy Control - Lockout/Tagout | EHS
Identifying the employees, machines, equipment, and processes included in the program. Providing the necessary protective equipment, hardware and appliances. Monitoring and measuring conformance with the program. Supervisors are responsible for: Distributing protective equipment, hardware, and any appliance; and ensuring its proper use by employees.
Making sure that equipment-specific procedures are established for the machines, equipment and processes in their area. Consultation and assistance to departments on the development of their LOTO program. Provide or coordinate LOTO training to authorized personnel. Annual review of the LOTO program for each organization. What you can do to stay safe Authorized personnel: Always communicate and coordinate LOTO work with affected personnel, and others as needed.
Always follow LOTO procedures when working on applicable equipment. Suggest changes to LOTO procedures that need improvement for safety reasons. Employees, students and visitors, including affected personnel: Ask questions if unclear about the LOTO program and procedures and how it affects your work area.OSHA Lockout Tagout and Electrical Safety Training Video
Know what equipment in the area needs to be maintained and serviced using LOTO procedures. Know who are the authorized personnel for your area. Never touch or try to start up equipment that has been locked and tagged out, and tell others as needed. Ask about equipment that does not have LOTO procedures and you think may pose a hazard.
Injuries depend on the type of hazardous energy and the degree of exposure, but may include lacerations, crushed or fractured body parts, amputations, cuts, burns, electrocution or fatalities.
How often are hazardous energy control procedures required to be inspected? All hazardous energy control procedures are to be inspected at least annually by another authorized person that is not involved in the LOTO.
Lockout/Tagout & OSHA Compliance
Can I use just a tagout device to control hazardous energy? Additional safety measures for the tagout "Tags Plus" are mandated, given the inherent limitations of a tag, in order to achieve a level of safety that is equivalent to that which would be achieved through a lockout system. In other words, you must implement additional safety measures that "bridge the gap" between the degree of safety achieved through lockout and the degree of safety achieved through tagout.
Additional training on specific procedures must be provided by a competent person.