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PICKERING
CITY PROCEDURE
Procedure Title: Equipment and Power Lockout/Tagout
Procedure Number:
HUR 130-007
Reference:
Occupational Health & Safety Act
Date Originated:
January 30, 2009
Date Revised:
Approval: Chief dmini ive Officer
Point of Contact: Coordinator, Health & Safety
Procedure Objective
The objective of this procedure is to establish uniform methods for the disabling of
powered equipment, machinery and electrical circuits prior to the performance of
inspections, maintenance, or repairs.
Contractors must also follow this lockout/tagout procedure while performing work for the
City of Pickering when the City is the constructor or the employer as defined by the
Occupational Health & Safety Act.
Index
01 Definitions
02 Procedures
01 Definitions
01.01 Affected Employee - An employee who operates or uses
machinery or equipment on which servicing or maintenance is
being performed under lockout or tagout, or whose job requires
them to work in an area in which servicing or maintenance is being
performed.
01.02 Authorized Employee - A person who locks out or implements a
tagout system on machines or equipment to perform servicing or
maintenance on that machine or equipment. An authorized
employee and an affected employee may be the same person.
01.03 Competent Person/Worker - A person who is qualified because of
knowledge, training and experience to organize the work and its
performance, is familiar with the Occupational Health & Safety Act
and the regulations that apply to the work and has knowledge of
any potential or actual dangers to health or safety in the workplace.
01.04 Energized - Anything connected to an energy source or containing
residual or stored energy.
01.05 Lockout - The placement of a locking device(s) on the equipment
and or energy source(s) which ensures the equipment cannot be
operated or energy sources cannot be released during the servicing
or maintenance work and until the locking device(s) are removed.
01.06 Lockout Device - A device(s) utilizing a positive means such as a
single keyed lock, to render switches, valves, equipment, etc.
inoperable and thus preventing the energizing of a machine or
equipment. Removal of a lockout device is the responsibility of the
person (or department, in the case of a shop lock) who installed it.
01.07 Servicing/Maintenance - Workplace activities such as
constructing, installing, modifying, repair, maintaining, adjusting, or
servicing of machines and equipment.
01.08 Tagout - The placement of a written notice at the control
switch/device of an electrical circuit (less than 300volts), line, valve,
machine, equipment, etc., indicating that the energy isolating device
and or the equipment being controlled may not be operated until the
tagout device is removed.
01.09 Tagout Device - A prominent warning device, such as a tag, which
can be securely fastened to a lockout device to indicate that the
energy being controlled may not be operated until the tagout device
is removed. Tags must indicate the name of the person who
installed the tagout device, date and time the tag was attached, and
the reason for the tag. Removal of a tagout device is the
responsibility of the person (or department, in the case of a
department tag) who installed it.
02 Procedures
02.01 Before locking or tagging out any piece of equipment, ensure those
operating the equipment or those in the area affected by the lockout
or tagout are made aware of what is to take place.
Procedure Title: Equipment and Power Lockout/Tagout Page 2 of 10
Procedure Number: HUR 130-007
02.02 Determine what source(s) of energy are being used to power the
equipment and what controls will be used to ensure against
accidental start-up or release of energy.
02.03 Proceed with general provisions in the lockout and tagout of
equipment.
02.04 Prepare For Shutdown
a) determine the types of energy that is powering the equipment;
b) determine what hazards may be present; and
c) determine what controls will be used to control the energy.
02.05 Shut Equipment Down
a) follow normal shut down procedure for the equipment; and
b) shut equipment down at the operating controls (pressing the
"Stop" button does not ensure equipment shut down and is
therefore not adequate).
02.06 Isolate Equipment
a) check all operating switches to ensure against accidental start-
up;
b) apply energy -isolating devices (locks, blanks, etc);
c) check for secondary sources of energy; and
d) never isolate equipment by pulling an electrical switch or fuses
while under load. Electrical disconnects should by carried out
by a qualified electrician or competent person.
02.07 Apply Lockout/Tagout Devices
a) attach a lock or comparable device to each and every energy -
isolating device to prevent anyone from re -energizing the
equipment during service or maintenance;
b) all locks shall only have one key that is not common to other
locks;
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Procedure Number: HUR 130-007
c) multiple lock hasps shall be used if more than one person is
working on the equipment;
d) tagout devices shall be attached to each lock and filled out
completely; and
e) wherever possible, lockout tags should be clearly visible and
identifiable as a lockout tag. Red lockout tags are preferred.
02.08 Control Stored Energy
a) ensure all parts have stopped moving;
b) install ground wires to discharge electrical capacitors
(performed by a competent person only);
c) relieve stored pressure;
d) blank pipe flanges;
e) release spring tension or block the movement;
f) block or brace parts that could fall or move due to gravity;
g) Bleed lines and leave vent valves open;
h) Block hydraulic and pneumatic systems that could move from
loss of pressure;
i) Purge reactor tanks and process lines whose contents could
create a hazard; and
j) monitor for any possible re -accumulation of energy.
02.09 Equipment Isolation
a) ensure all danger zones are clear of personnel;
b) verify that the main disconnect switch or circuit breaker cannot
be operated;
c) test switches with a volt meter or voltage potential testing
device;
d) ensure the correct system has been locked out and isolated by
testing all operating buttons and activating controls;
Procedure Title: Equipment and Power Lockout/Tagout Page 4 of 10
Procedure Number: HUR 130-007
e) shut off all equipment controls when testing is completed; and
f) periodically verify isolation until service or maintenance is
complete (especially after each day, extended periods of
absence, after lunch and breaks).
02.10 Equipment Start-up and Testing
At the completion of the work requiring the lockout/tagout the
following process shall be used prior to, during, and after the
equipment is returned to service:
a) inspect work area to ensure that all non-essential equipment
that could potentially interfere with equipment start-up has been
removed;
b) confirm employees in the area are aware equipment start-up will
begin;
c) ensure all personal lockout and tagout devices are removed
only by the person who installed them;
d) inform supervisor that the equipment is now safe to operate;
e) if fuses need to be re -installed or main switches activated this
shall only be done by a qualified electrician or competent
person;
f) energize equipment and proceed with testing; and
g)
ensure all guards and other barriers have been replaced.
02.11 Lockout/Tagout Devices and Equipment
The supervisor shall be responsible for providing and maintaining
the necessary lockout and tagout devices. The devices and
equipment required may include but is not limited to the following;
individually keyed locks (with one key), shop locks, hasps, chains,
blanks, tags, switch lockouts, valve lockouts, plug lockouts, breaker
lockouts, fuse pullers, electrical test devices, etc.
Wherever possible, a red lockout tag should be used to clearly
identify that equipment as being locked out.
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Procedure Number: HUR 130-007
02.12 Equipment Servicing Lockout/Tagout Procedure
The following is a step-by-step procedure to be followed when
equipment is being serviced.
This Equipment Servicing Lockout/Tagout Procedure is to be use
only for the cleaning, lubrication, oiling, setup or adjustment of
equipment where guards do not have to be removed, and the
accidental or unintended release of energy does not represent a
hazard.
If the starting of the machine or equipment during servicing has the
potential to endanger the safety of a worker, use Equipment Repair
Lockout/Tagout Procedure described in 02.15.
02.13 Equipment Shut Down
1. Press "Stop" button.
2. Apply latch or lock to "Stop" button.
Note: If equipment is equipped with start/stop mechanism that
does not provide a Locking Ring or if the only stop button
incorporates a SCADA screen button, then proceed to
disconnect switch, pull handle to "Off' position and install
lockout device.
3. Confirm all motion that may endanger a worker has stopped.
4. Block any part that has stopped and that could potentially
endanger a worker if it were to move during servicing.
5. Attempt to start machine with "Start" button.
6. If equipment does not start, begin servicing.
02.14 Equipment Start Up after Servicing
1. Ensure machine can be returned to operating conditions.
Ensure no obstructions exist, tools have been removed and
guards remain in place.
2. Remove any blocking devices and the latch or lock from "Stop"
button or lock from disconnect switch.
3. Ensure workers are free and clear of machine to allow for safe
starting.
Procedure Title: Equipment and Power Lockout/Tagout Page 6 of 10
Procedure Number: HUR 130-007
4. Press "Start" button and visually check equipment is operating
properly.
02.15 Equipment Repair LockoutlTagout Procedure
The following is a step-by-step procedure to be followed when
equipment is being maintained or repaired or the starting of the
machine or equipment while being maintained or repaired may
endanger the safety of a worker.
If in doubt as to the hazards or whether to use this procedure or the
Equipment Servicing Lockout / Tagout Procedure described in
02.12, workers must use the more stringent Equipment Repair
Lockout / Tagout Procedure described below.
02.16 Equipment Shut Down
1. Stop or shut down machine in normal manner.
2. Inform Supervisor of the nature of problem pertaining to the
particular machine (if supervisor has not already provided
direction to worker).
3. Locate main disconnect switch and pull handle to "Off' position.
4. Install lockout device to disconnect switch in the "Off' (open)
position.
5. Each person to work on equipment must add their personal
padlock in series.
6. Physically attempt to switch disconnect handle to "On" position.
7. Attach completed "DO NOT START" tag on disconnect handle
or lockout device.
8. Attempt to start machine with "Start" switch/button.
9. If equipment starts, repeat procedure beginning at step 3, and
attempt to identify additional energy sources.
10. If you are unable to identify other energy sources feeding the
equipment contact a supervisor for instructions.
11.Test with an Approved Electrical Test Device to ensure all
power is de -energized.
Procedure Title: Equipment and Power Lockout/Tagout Page 7 of 10
Procedure Number: HUR 130-007
12. Confirm all motion that may endanger a worker has stopped.
13. Block any part that has stopped and that could potentially
endanger a worker if it were to move during servicing.
14. Proceed with repairs to machine, once equipment cannot be
started.
02.17 Equipment Start-up after Repair
1. Responsibility for removing the lock(s) rests with each individual
who installed a lock.
2. Inform Supervisor repairs have been completed and equipment
is safe to operate.
3. Check equipment stop/start switch is "Off' by physically
pressing "Stop" button.
4. Safety tag to be removed by person who attached it to
disconnect handle or padlock.
5. Ensure workers in the area who may be impacted by the start
up are aware equipment is being returned to service.
6. Return disconnect to "On" position. In the event that fuses have
to be reinstalled, an Electrician or competent person shall
perform the task.
7. Ensure machine has been returned to operating condition.
Check to confirm no blocks or obstructions exist and guards are
in place.
8. Press "Start" button and visually check equipment is operating
properly.
Note: Only the individual instructed by the Supervisor will have the
responsibility and permission to start machine, after ensuring it is
safe to do so.
02.18 Lock and Tag Removal by Other than the Authorized Employee
Removal of a lockout and tagout device is the responsibility of the
individual who installed it. If the equipment is required to be locked
out beyond the shift or if an employee is called to another task, the
Procedure Title: Equipment and Power Lockout/Tagout Page 8 of 10
Procedure Number: HUR 130-007
employee shall remove their lock. If the equipment has not been
returned to a safe operational mode or represents a continued
hazard, the employee will contact their supervisor to arrange for the
installation of a shop lock. Department locks are not to be used in
place of an individual lock while the authorized employee is working
on the equipment.
In the event a personal lock is found in place and a need arises to
remove it, the following precautions must be exercised:
1. verify that the authorized employee who attached the
lockout/tagout device is not in the facility;
2. all reasonable efforts shall be made to contact the authorized
• employee and have them return to remove the lockout or tagout
device;
3. only a supervisor shall remove lockout and tagout devices in the
presence of an "affected employee" after testing and/or
inspection has been completed by a competent person or
worker. All parties involved in the removal of another
individual's lockout device shall agree to the removal of the
locking/tagging device;
4. the authorized employee who's lockout/tagout device has been
removed shall be informed at the start of their next shift and
issued a new lockout/tagout device; and
5. ensure that others who may be in the area of the equipment are
aware that the lock/tag has been removed and that start-up may
occur.
02.19 Shift Changeover
Shift changes or personnel changes will be coordinated by the
authorized employee or supervisor. The following steps must take
place:
1. Lockout/tagout devices to be removed and a shop lock installed.
Where an oncoming authorized employee has been assigned
the job they must install their personal lockout/tagout devices.
2. The oncoming authorized employee(s) shall verify the
equipment is in a state of zero energy before proceeding to
work.
Procedure Title: Equipment and Power Lockout/Tagout Page 9 of 10
Procedure Number: HUR 130-007
3. A supervisor may approve the authorized employee to leave
their personal lockout/tagout devices in place if no other
employee will work on the machine before the authorized
employee returns for their next scheduled shift.
02.20 Group Lockout
When servicing or maintenance is being conducted by more than
one person, each individual shall install their own personal lockout
and tagout devices which they personally remove when their work is
complete.
02.21 General
Additional controlmeasures may be required to protect against
exposure to other forms of energy e.g. hydraulic, pneumatic, steam,
chemical, etc. that will require the stored energy be reduced to a
zero state and/or blanking of supply lines. Supervisor must discuss
these additional requirements upon assignment of the work.
Workers in doubt about the need for additional controls must
consult with their supervisor.
Procedure Title: Equipment and Power Lockout/Tagout
Procedure Number: HUR 130-007
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