Control of Hazardous Energy

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Transcript Control of Hazardous Energy

Controlling Hazardous Energy

University of Louisiana - Monroe



Control of Hazardous Energy

29 CFR 1910.147

The standard covers the servicing and maintenance of machines and equipment in which the unexpected energization or start up of the machines or equipment , or release of stored energy could cause injury to employees.


Provisions Of The Standard

Requires employers to establish procedures for isolating machines or equipment from their source of energy and affixing appropriate locks or tags to energy isolating devices



Authorized employee: A person who locks out or tags out machines or equipment in order to perform servicing or maintenance  Affected employee: A person whose job requires him to operate or use a machine or equipment on which servicing or maintenance is being performed under lockout or tagout



    Energy isolating device:The mechanism that prevents the transmission or release of energy and to which locks or tags are attached Includes manually operated circuit breakers, disconnect switches, line valves, blocks, and others Lockout: The placement of a lockout device on an energy isolating device to ensure that the equipment being controlled cannot be operated until the lockout device is removed Tagout: The placement of a tagout device on an energy isolating device to indicate the equipment being controlled may not be operated until the tagout device is removed


Energy Sources

 are not limited to electrical oriented machinery, equipment or processes, but will include any source of sudden energy release which may be harmful; i.e., air pressure, heat, steam, springs under tension or hydraulic systems.

7 Responsibilities 


 Supervisors are responsible for the well-being and training of all workers under their cognizance as well as ensuring that all necessary safety procedures are followed. In any situation where the worker refuses to follow recognized guidelines, the supervisor will require the individual to leave the work area as soon as possible. Disciplinary actions may be taken in accordance with Human Resources standards.




 Only employees who are qualified and authorized will service, perform maintenance or make any adjustments to machinery, equipment or processes having the aforementioned potential. Work will not be performed in such a manner to bypass the requirements of this standard. Workers who fail to comply may be subject to disciplinary actions which may include dismissal according to the seriousness of the particular incident.

9      De-energizing Equipment Locate energy source and control method Notify others, employees or anyone using facilities of the necessity for using lockout/tagout procedures Determine lockout and/or tagout energy controls to be applied in Off or safe positions of switches, panels and breakers; if it is appropriate for the job, position a person at the panel or at the controls to ensure protection. Test to verify energy has been isolated from equipment or exposed working surfaces Perform necessary adjustments, repairs or maintenance. When completed, ensure that all covers, guards and protective devices are in place


Re-energizing Equipment

  Ensure that machine or equipment components are operationally intact Ensure that all employees are safely positioned or removed from equipment  Only the employee who applied the lock or tag is authorized to remove it.

11 Lockout/Tagout Requirements  If an energy isolating device is utilize a tagout system not capable of being locked out, the employer’s energy control program shall

12 Lockout Requirements  After January 1990, whenever replacement, major repair, or modification of a machine is performed, or whenever new machines or equipment are installed, they must be designed to accept a lockout device

13 Device Requirements    Durable: Lockout and tagout devices must withstand the environment to which they are exposed for the maximum duration Standardized: Both lockout and tagout devices must be standardized according to either color, shape, or size Tagout devices must also be standardized according to print and format

14 Device Requirements   Substantial: Lockout and tagout devices must be substantial enough to minimize early or accidental removal Identifiable: Locks and tags must clearly identify the employee who applies them.


Tag Requirements

 Tags must also include a legend such as:  Do not start  Do not open  Do not close  Do not energize  Do not operate


Training and Communication

   Each


employee shall receive training in:    Recognition of applicable hazardous energy sources Type and magnitude of the energy available in the workplace Methods and means necessary for energy isolation and control Each affected employee shall be instructed in the purpose and use of the energy control procedure All other employees shall be instructed about the prohibition relating to attempts to restart or reenergize machines or equipment which are locked out or tagged out


Training and Communication

  The employer shall certify that employee training has been accomplished and is being kept up to date Certification shall contain employee names and dates of training


Group Lockout or Tagout

  Primary responsibility is vested in an


employee for a set number of employees working under the protection of a group lockout or tagout device Each


employee shall affix a personal lockout or tagout device to the group lockout device


Outside Personnel- Contractors

 Whenever outside servicing personnel are engaged in activities covered by lockout/tagout, the on-site employer and the outside employer shall inform each other of their respective lockout or tagout procedures


Lockout Device


Group Lockout


Tagout Tags


Tagout Tag


Lockout Signage