2320 De-energization and Lockout Flashcards
What are the general classes of hazardous energy in the workplace?
Kinetic Chemical Potential Thermal Electrical Radiation
What is de-energization?
De-energization is the process of ensuring that energy from machinery/equipment is contained and unable to be released into a worker that may be working in the normal path of that energy.
What resources should be used when determining whether de-energization or lockout are required for a work process?
1, Regulations
2, Technical manual from manufacturer
3, Input from qualified workers
What is a control system isolating device?
A device that physically prevents activation of a system used for controlling machinery or equipment.
What is an energy isolating device?
A device that physically prevents the transmission or release of an energy source to machinery or equipment.
What is a key securing system?
A system which physically prevents access to keys when locks or positive sealing devices are applied in a group lockout procedure.
What does the term lockout mean?
The use of a lock(s) to render machinery or equipment inoperable or to isolate an energy source in accordance with a written procedure.
What is “maintenance” according to BC OHS legislation?
Work performed to keep machinery or equipment in safe operating condition, including repairing, installing, cleaning, lubricating, and clearing of obstructions to normal flow.
What is “normal production” according to BC OHS regulations? Context, de-energization & lockout.
Work that is routine, repetitive, and integral to the normal use of machinery or equipment for production.
What are the standard rules regarding personal locks?
1, They must be key locks, not combination.
2, Each lock much be individually keyed with only the owner having the key (with possible exception of a spare with supervisor/manager)
3, Most jurisdictions (incl’ BC) require that locks be identified/labelled
4, In most situations, every worker must apply their own lock on machines during work.
What is the standard process for re-energization?
1, The worker who did the de-energization/lockout checks that the equipment is clear and safe of obstruction/workers. The machine is then observed to ensure no person enters the energy path after inspection
2, The worker removes their lock and re-activates the main energy-isolating device.
Who should apply a multi-lock hasp?
The person with the primary responsibility, who performed the five steps of DE/L, should apply the multi-lock hasp and secure their lock in the first position.
What is a multi-lock hasp?
A device that can be used in place of a padlock, which has spaces for multiple padlocks to be applied.
This allows for multiple individuals to each secure a device with their own personal lock.
What are the steps of de-energization and lockout?
1, De-energization
Identify and shut off the main energy-isolating device.
2, Confirm de-energization
Confirm that there are no workers in the path of energy, and then test the equipment to conform that the energy is controlled.
3,Assure continued de-energization
Apply a personal lock.
What is a group lockout procedure?
A procedure that can be used when there are multiple energy-isolating devices that require lockout and there are multiple workers involved.
It reduces the need for excessive numbers of personal locks.
1, TWO qualified workers perform standard DE/L procedures for each device.
2, The keys to the locks are locked in a box, and the box is secured with a multi-lock hasp.
3, Each worker puts their personal lock on the hasp.
4, Each worker removes their own lock when they have completed work and are no longer in the path of energy.
5, When all locks are removed, TWO designated/qualified workers re-energize the devices together following standard procedures.
