lockout/tagout – Risk Management 365

What Can Be Done to Control Hazardous Energy?

Failure to control hazardous energy accounts for nearly 10 percent of the serious accidents in many industries. Proper lockout/tagout (LOTO) practices and procedures safeguard workers from the release of hazardous energy. The OSHA standard for The Control of Hazardous Energy (Lockout/Tagout) (29 CFR 1910.147) for general industry outlines measures for controlling different types of hazardous energy. The LOTO standard establishes the employer’s responsibility to protect workers from hazardous energy. Employers are also required to train each worker to ensure that they know, understand, and are able to follow the applicable provisions of the hazardous energy control procedures:

Proper lockout/tagout (LOTO) practices and procedures safeguard workers from the release of hazardous energy. The OSHA standard for The Control of Hazardous Energy (Lockout/Tagout) (29 CFR 1910.147) for general industry, outlines specific action and procedures for addressing and controlling hazardous energy during servicing and maintenance of machines and equipment. Employers are also required to train each worker to ensure that they know, understand, and are able to follow the applicable provisions of the hazardous energy control procedures. Workers must be trained in the purpose and function of the energy control program and have the knowledge and skills required for the safe application, usage and removal of the energy control devices.
All employees who work in the area where the energy control procedure(s) are utilized need to be instructed in the purpose and use of the energy control procedure(s) and about the prohibition against attempting to restart or reenergize machines or equipment that is locked or tagged out.
All employees who are authorized to lockout machines or equipment and perform the service and maintenance operations need to be trained in recognition of applicable hazardous energy sources in the workplace, the type and magnitude of energy found in the workplace, and the means and methods of isolating and/or controlling the energy.
Specific procedures and limitations relating to tagout systems where they are allowed.
Retraining of all employees to maintain proficiency or introduce new or changed control methods.

via Safety and Health Topics | Control of Hazardous Energy (Lockout/Tagout).

Lock-out Tag-out to Avoid Serious Accidents

Many serious accidents have happened when someone thought a machine or the power to it was safely off. “Lock-out tag-out” is a way to protect yourself and others by ensuring that machines remain completely, temporarily off. Without a lock-out tag-out system there is the possibility that a machine will unexpectedly start up, either because of stored energy which was not correctly released or through the actions of someone starting the process without realizing that it isn’t safe to do so.

The lock-out tag-out standard requires that hazardous energy sources be “isolated and rendered inoperative” before maintenance or servicing work can begin. These energy sources include electrical (either active current or stored as in a capacitor), pneumatic, hydraulic, mechanical, thermal, chemical, and the force of gravity. It is important to remember all of the energy sources must be “isolated and rendered inoperative.” Overlooking an energy source has proved fatal on several occasions.

via Lock-out Tag-out.

What is Lockout/Tagout Safety Procedure?

Lockout-tagout (LOTO) or lock and tag is a safety procedure which is used in industry and research settings to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work. It requires that hazardous power sources be “isolated and rendered inoperative” before any repair procedure is started. “Lock and tag” works in conjunction with a lockusually locking the device or the power source with the hasp, and placing it in such a position that no hazardous power sources can be turned on. The procedure requires that a tag be affixed to the locked device indicating that it should not be turned on.

A good Lockout/Tagout Procedure, at a minimum, should contain the following elements:

1. All maintenance personnel shall be provided with a good lock. The lock shall have the individual workers’ name and other identification on it. Each worker shall have the only key to the lock.

2. The worker shall check to be sure that no one is operating the machinery BEFORE turning -off the power. The machine operator shall be informed before the power is turned off. Sudden loss of power could cause an accident

3. Steam, air and hydraulic lines shall be bled, drained, and cleaned out. There shall be no pressure in these lines or in reservoir tanks.

4. Any mechanism under tension or pressure, such as springs, shall be released and blocked.

5. Each person who will be working on the machinery shall put a lock on the machine’s lockout device(s). Each lock shall remain on the machine until that worker’s work is complete.

6. All energy sources that could activate the machine shall be locked out (blocked/tagged).

7. The main valve or main electrical disconnect shall be tested to be sure that the power to the machine is off.

8. Electrical circuits shall be checked with proper and calibrated electrical testing equipment. An electrical failure could energize the equipment even if the switch is in the off position. Stored energy in electrical capacitors shall be safely discharged.

9. When working on machinery such as power presses and welding presses that have a ram that could fall, the ram shall be supported with safety blocks or pins. Fully interlocked safety blocks are the safest.

No Lockout/Tagout Can Be Fatal

Worker killed at Michigan molding plant

A worker was crushed to death March 5, 2014 in an industrial accident at a plastics molding plant in Shelby Township, Mich.

The victim was attempting to clear an obstruction from a press machine at about 6 a.m. when he was fatally injured, according to a news release from the Shelby Township Police Department.

“The machine cycled to stamp a part and crushed the victim,” the release says.

The victim died at the scene before police and fire personnel arrived.

via Worker killed at Michigan molding plant – News – Plastics News.

“While this is still under investigation by MIOSHA it’s obvious this machine was being worked on with out following Lockout-tagout procedures. Unfortunately this time it was fatal.”

Lockout-tagout

Lockout-tagout (LOTO) or lock and tag is a safety procedure which is used in industry and research settings to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work. It requires that hazardous power sources be “isolated and rendered inoperative” before any repair procedure is started. “Lock and tag” works in conjunction with a lock usually locking the device or the power source with the hasp, and placing it in such a position that no hazardous power sources can be turned on. The procedure requires that a tag be affixed to the locked device indicating that it should not be turned on.

via Lockout-tagout – Wikipedia, the free encyclopedia.

Control of Hazardous Energy – What is “lockout/tagout”?”

“Lockout/tagout” refers to specific practices and procedures to safeguard employees from the unexpected energization or startup of machinery and equipment, or the release of hazardous energy during service or maintenance activities. This requires, in part, that a designated individual turns off and disconnects the machinery or equipment from its energy sources before performing service or maintenance and that the authorized employees either lock or tag the energy-isolating devices to prevent the release of hazardous energy and take steps to verify that the energy has been isolated effectively. If the potential exists for the release of hazardous stored energy or for the reaccumulation of stored energy to a hazardous level, the employer must ensure that the employees take steps to prevent injury that may result from the release of the stored energy.

Lockout devices hold energy-isolation devices in a safe or”off” position. They provide protection by preventing machines or equipment from becoming energized because they are positive restraints that no one can remove without a key or other unlocking mechanism, or through extraordinary means, such as bolt cutters.

Tagout devices, by contrast, are prominent warning devices that an authorized employee fastens to energy-isolating devices to warn employees not to reenergize the machine while he or she services or maintains it. Tagout devices are easier to remove and, by themselves, provide employees with less protection than do lockout devices.

via Control of Hazardous Energy Lockout/Tagout.

Don’t Forget Lockout/Tagout

Picture yourself performing maintenance inside of a huge machine. Suddenly, the machine springs to life, powerful metal gears grinding around you, placing you in mortal danger. That is exactly the sort of terrifying scenario that lockout/tagout is meant to prevent. Lockout/tagout is a procedure to disable equipment to protect workers from either an unexpected release of energy or an accidental start-up while performing job activities.

via The keys to lockout/tagout.

Control of Hazardous Energy (Lockout/Tagout)

What is hazardous energy?

Energy sources including electrical, mechanical, hydraulic, pneumatic, chemical, thermal or other sources in machines and equipment can be hazardous to workers. During the servicing and maintenance of machines and equipment, the unexpected startup or release of stored energy could cause injury to employees.

via Safety and Health Topics | Control of Hazardous Energy (Lockout/Tagout).