Otis Singleton
LOTO, or Lockout/Tagout, is a safety procedure used to protect workers from hazardous energy sources, such as electricity, and prevent accidents and injuries. It involves isolating and controlling these energy sources by removing all power sources, locking the power source, and placing a tag on the lock to indicate who locked it and why. This ensures that equipment cannot be accidentally restarted while being worked on or serviced. LOTO is a vital strategy for companies to improve safety when working with electrical systems and is mandated by law in some countries.
| Characteristics | Values |
|---|---|
| Full Form | Lockout/Tagout |
| Purpose | To protect workers from hazardous energy, prevent accidental start-up or release of hazardous energy, protect equipment and the environment from damage |
| Process Components | De-energization, Control |
| Safety Procedure | Ensure dangerous equipment is shut off and cannot be started before maintenance or repair work |
| Safety Disconnect | Installed within sight of serviceable equipment to isolate the equipment |
| Panel Lockout | Used to protect one or more circuit breakers in an electrical panel |
| Locks | Prevent power from being restored, placed at breakers, electrical disconnects, plugs, battery backups |
| Tags | Indicates equipment shouldn't be turned on, provides information on who engaged LOTO protocol and when |
| Training | Required for workers involved in or working in areas where they might be affected |
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What You'll Learn
LOTO is a safety procedure to control hazardous energy
LOTO, or Lockout/Tagout, is a safety procedure to control hazardous energy. It is a formal process to protect workers from harm, injury, or death caused by unexpected energy releases from equipment during maintenance or servicing activities. This procedure is especially relevant in electrical work, where the sudden release of energy can lead to severe injuries or even electrocution.
The primary goal of LOTO is to isolate and control hazardous energy sources, such as electrical, mechanical, hydraulic, pneumatic, and thermal energy. By doing so, LOTO prevents the accidental start-up of equipment or the release of hazardous energy while it is being serviced or maintained. This is achieved by physically removing the source of energy, such as electricity, and placing locks and tags on the energy source to prevent re-energization. The locks ensure that the power source cannot be turned on, while the tags provide information on who locked out the energy source and why.
The LOTO procedure is composed of several steps. Firstly, workers must notify their coworkers, supervisors, and anyone who may be affected by the procedure about the work to be performed and the expected duration of the lockout. This proactive communication helps set expectations and minimize confusion. Next is the isolation step, where all hazardous energy sources are identified and secured using locks and tags. This includes considering all possible sources of energy, such as backup systems, batteries, and capacitors in the case of electrical energy.
Verification is a critical step in the LOTO procedure. Workers must verify that all hazardous energy sources have been isolated and that the equipment is safe to work on. This may involve testing equipment to ensure it is de-energized and performing visual inspections to confirm that all locks and tags are in place. Only after this verification process should workers proceed with the maintenance or servicing work. During this work, the locked-out machinery cannot be activated until all workers have removed their locks and tags, ensuring that only authorized personnel can start the equipment.
LOTO is mandated by law in some countries and is a vital component of safety programs in various industries. Organizations and employers are responsible for establishing and maintaining LOTO procedures and providing proper training to their employees. The effectiveness of LOTO has been demonstrated by its ability to prevent injuries and save lives, with OSHA estimating that LOTO compliance prevents 50,000 injuries and 120 deaths each year in the United States alone.
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LOTO is used to protect workers, equipment, and the environment
LOTO, or Lockout/Tagout, is a safety procedure used to protect workers, equipment, and the environment from hazardous energy. Hazardous energy is defined as the potential energy in equipment that may be unexpectedly released, causing severe harm or even death to workers servicing the equipment.
LOTO is used to isolate and control these hazardous energy sources, which can be electrical, mechanical, hydraulic, pneumatic, or thermal. By doing so, LOTO prevents accidents and injuries that can occur from the unexpected start-up or release of energy during maintenance or servicing activities. This is especially important for electrical systems, where the risk of electrocution is high.
The process involves de-energization, or removing all energy sources from the system, and control, which prevents re-energization. Locks and tags are used to secure these energy sources, with locks physically preventing power from being restored, and tags indicating that the equipment should not be turned on. The tags also provide information on who engaged the LOTO protocol and why. Workers must also verify that all hazardous energy sources have been isolated and that the equipment is safe to work on through testing and visual inspections.
LOTO is a proven system that is simple to learn, implement, and follow. It is a legal requirement in some countries and is mandated by organizations such as OSHA, ANSI, and ASSE, which provide guidelines and training standards for its use. By following LOTO procedures, companies can improve safety for their workers and reduce the risk of accidents and injuries.
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LOTO requires de-energization and control
LOTO, or Lockout/Tagout, is a safety procedure used to ensure that dangerous equipment is shut off and cannot be started up again before maintenance or repair work is completed. LOTO requires de-energization and control to prevent the unexpected release of hazardous energy and protect workers from harm.
De-energization is the process of removing all energy sources from the system. This involves identifying and isolating all hazardous energy sources, such as electrical, mechanical, hydraulic, pneumatic, and thermal power. It is important to consider all possible sources, including backup systems, stored energy in batteries and capacitors, and mechanical energy created by motion. Residual or stored energy separate from the primary energy source can also be present in complex equipment.
To achieve de-energization, locks and tags are placed on the energy source to prevent re-energization. Locks physically prevent power from being restored by rendering equipment inoperable, while tags indicate that the equipment should not be turned on. Tags also provide information on who engaged the LOTO protocol and why. Each worker applies their own lock and tag, and the worker holds the key to the lock, ensuring only they can remove it and start the equipment. This personal LOTO requirement is essential, and workers must be trained in proper LOTO procedures.
Control in the LOTO process involves preventing the re-energization of equipment before it is safe. This is achieved through the use of locks and tags, which serve as reminders and clearly indicate that the equipment is not to be turned on. Locks and tags are typically applied at breakers, electrical disconnects, traditional plugs, and battery backups. However, any source of power will need a lockout device, and in some cases, a tagout device may be used when a lockout is not possible.
The combination of de-energization and control in the LOTO process ensures that hazardous energy sources are isolated and controlled, preventing accidental start-up or release of energy. This protects workers from potential harm, injury, or death that can occur during maintenance or servicing activities. LOTO is a proven and effective strategy, mandated by law in some countries, to improve safety when working with electrical systems and other hazardous energy sources.
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LOTO training is required for workers
LOTO, or Lockout/Tagout, is a safety procedure used to ensure that dangerous equipment is properly shut off and cannot be started up again before the completion of maintenance or repair work. LOTO training is required for workers to ensure they are aware of the restrictions and can identify locks and tags. The training also ensures that workers are able to follow the correct procedures for their own safety and that of their colleagues.
LOTO is a formal process for controlling hazardous energy and is used to protect personnel working on equipment from the unexpected release of such energy. It is composed of two principal process components: de-energization, which removes all energy sources from the system, and control, which prevents re-energization.
LOTO training is required for all workers who will be performing work on equipment or entering an area with hazards controlled by LOTO. This includes both authorized and affected employees. Authorized employees are those who are qualified to lock out or tag out specific machines or equipment to enable cleaning, repairing, servicing, etc. Affected employees are those who work with machines covered by the lockout tagout safety standard and are at risk of being harmed by a machine requiring lockout tagout. While affected employees are not authorized to apply or remove lockout tagout devices, they must understand the procedures so that they can monitor for any violations.
Training must be provided in a language that employees understand and be specific to the actual work they will be performing. It should cover the identification of all sources of hazardous energy and their associated hazards for the machine or equipment that is to be locked out. Workers must also be trained on how to notify others who may be affected by the LOTO procedure, such as coworkers and supervisors, of the work that will be performed and the expected duration of the lockout.
In some countries, LOTO is mandated by law. For example, in the United States, sites regulated by OSHA rules require a documented lockout-tagout policy. In Canada, all jurisdictions legally require lockout for certain work, although the specific activities required for an appropriate lockout are usually provided through industry standards.
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LOTO is mandated by law in some countries
LOTO, or Lockout/Tagout, is a safety procedure used to ensure that dangerous equipment is properly shut off and cannot be started up again before maintenance or repair work is complete. It is a formal process for controlling hazardous energy, protecting personnel from unexpected releases of energy and preventing accidents and injuries. LOTO is composed of two principal process components: de-energization, which removes all energy sources from the system, and control, which prevents re-energization.
In Europe, the EN 50110-1 standard outlines the safety procedures to be followed before working on electric equipment, including lockout/tagout policies. While a documented LOTO policy may be required by government regulations in some European jurisdictions, the specific activities required for lockout are typically not specified in law but rather provided through industry standards.
The International Organization for Standardization (ISO) has established the ISO 45001 standard for Occupational Health and Safety Management Systems, which covers the use of LOTO procedures as part of a comprehensive safety program. This standard applies to organizations worldwide and requires that they establish and maintain procedures for controlling hazardous energy sources during maintenance and servicing activities.
Overall, the legal requirement for LOTO varies depending on the country and jurisdiction, with some countries mandating its use through government regulations or industry standards.
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Frequently asked questions
LOTO stands for Lockout/Tagout. It is a safety procedure used to ensure that dangerous equipment is properly shut off and not able to be started up again before the completion of maintenance or repair work.
The purpose of LOTO is to protect workers from harm, injury, or death that can occur from exposure to hazardous energy sources. It also helps to protect equipment and the environment from damage or harm that can be caused by the release or activation of hazardous energy sources.
LOTO is used when working on equipment that has the potential to cause injury. This includes electrical, mechanical, hydraulic, pneumatic, and thermal energy sources. LOTO is a formal process for controlling hazardous energy and preventing its unexpected release.
