Purpose
Scope
Actions
Responsibility
Policy Base
Supporting Documents
Promulgation
Implementation
Purpose
To
reduce the risk of injury when people are working on plant or equipment by
preventing the item and its components from being set in motion and preventing
the accidental release of stored energy.
Scope
This
procedure applies to people (staff, contractor, sub-contractor,
self-employed person, student, etc), working on plant or equipment on
University premises. Where several people are working on plant or
equipment, this procedure applies to every person.
Unless
specified otherwise, the following actions apply to any person planning to work on an item of plant or
equipment at the Factory:
- A. Shut Down the Plant
/ Equipment
- B. Conduct a Job Safety
Analysis
- C. Isolate All Energy
Sources: Lock Out / Tag Out
- D. Release All Stored
or Trapped Energies
- E. Test for Effective
Isolation
- F. Complete the Work
A. Shut Down the Plant / Equipment
1. Shut
down the item of plant/equipment. Simple items can usually be shut down
by a single control, such as a switch or valve. More complex items may have to be
shut down in a set sequence or by shutting down several energy sources (e.g.
electricity, pneumatic, hydraulics, fuel, etc).
2. Place a completed Out of Service Tag on the
controls of every energy source.
B. Conduct a Job Safety Analysis
1. Identify
all sources of energy associated with the item of plant/equipment and their
isolation points, including ones that may be remote or hidden. Include
electricity, compressed gases, fluids under pressure, stored energy, fuels,
heat, steam, gravity, radiation, etc.
2. Identify
all other hazards, including mechanical, chemical, falls, burns, asphyxiation,
and impact.
3. If
the work and the item of equipment meet all the conditions listed below,
proceed with the work:
· the item involves only one source of energy,
and that energy source will be under the direct control of the worker
throughout the work;
· the work involves only one worker;
· the worker is not working in isolation;
· the work and item are well within the
technical competencies of the worker;
· Other safety requirements do not apply
(e.g. permit-to-work).
1. If
the work or items of plant/equipment do not meet any one of the requirements in
Item 3 above, record the findings on a Job Safety Analysis form and contact the Facilities
Services office of the premises/campus where the work is being
carried out.
2. If
there is uncertainty about any aspect of conducting a Job Safety Analysis or if further information is
required (e.g. plans or diagrams), contact Facilities Services.
3. Facilities
Services will review the JSA, issue the necessary Locks and Tags, make the entries in the Lock and Tag Register, and determine the level of supervision
and additional measures required.
C. Isolate All Energy Sources: Lock Out / Tag Out
1. Once
Facilities Services have approved the JSA and have issued the necessary Locks
and Tags, isolate every energy source by means of one Lock and one Danger Tag
for every worker on every isolation point. Where several workers are
involved, use Safety Hasps (see Figure 1 below). Contact Facilities
Services to obtain these Hasps.
2. Except
for simple electrical equipment connected via a plug and socket, an electrician*
must isolate and disconnect all electrical supply to an item of
plant/equipment.
*Note: "electrician" in this
procedure means a worker who holds either of the following electrical licence:
-
Disconnect/Reconnect Worker's Licence (D Licence/Restricted)
-
Electrician's Licence (A Class/A/E Licence)
Figure
1 - A typical lock out / tag out set up
D. De-energise All Stored or Trapped Energies
Take
any of the following steps necessary to guard against energy left in the item
of plant/equipment after its energy sources have been isolated:
1. Inspect
the plant/equipment to make sure all parts have stopped moving.
2. Install
ground wires.
3. Block
or brace parts which could fall due to gravity.
4. Release
the tension on springs, or block the movement of spring-driven parts.
5. Block
parts in hydraulic and pneumatic systems that could move from the loss of
pressure.
6. Relieve
trapped or stored pressure. Bleed the lines and leave vent valves
open.
7. Drain
process piping systems and close valves to prevent the flow of hazardous
material.
8. If
a pipe must be blocked where there is no valve, use a blank flange.
9. Purge
tanks and process lines.
10. Dissipate
extreme cold or heat, or provide protective clothing.
11. If
stored energy can re-accumulate, monitor it to make sure it stays below
hazardous levels.
E. Test for Effective Isolation
1. After
the item of plant/equipment has been shut down, locked out and tagged out, but
before any person attempts to start work on the item, test all isolated power
sources. Test first with appropriate instruments and then by trying to activate
the item. Ensure the complexity of the plant (or parts of the plant,
including control stations and computers remote from the plant) is
understood. If unsure, contact Facilities Services.
2. Only
begin work on the item of plant/equipment when tests have confirmed it is safe
to do so.
F. Complete the Work
While
performing the work, monitor the condition of the item of plant/equipment
throughout the work to ensure unforeseen hazards or changing conditions do not
cause injury.
On
completion of the work:
1. Return
the item of plant/equipment to a safe and serviceable condition.
2. Ensure
each worker removes his/her own Safety Lock(s) and Danger Tag(s). Note:
Only the worker who was issued with a given Lock and Danger tag can remove
them. Anything other than this strict safety rule is absolutely
prohibited. Contact Facilities Services if for any reason it is
impossible to comply with this rule (e.g. lost key).
3. Ensure
the person who fitted the Out of Service Tag(s) removes it(them).
4. Test
the equipment for correct operation.
5. Report
to Facilities Services. Return all the items including used tags
Responsibility
1. The
HOD – Facilities Services has ownership of this procedure and its
implementation.
2. The Manager –
Risk, Health and Safety is responsible for the maintenance of
this procedure.
3. The
Facilities Managers are responsible for including this procedure in contractor
inductions and for ensuring that contractors/sub-contractors and Facilities
Services staff complies with this procedure.
4. Deans/Directors are responsible for ensuring
their staff and students comply with this procedure.
5. Specific responsibilities are included
under Actions.
Job
Safety Analysis (JSA)
Hazard
Identification & Risk Assessment (HIRA)
Permit
To work Register
Lock
and Tag Register
This
Procedure will be communicated throughout the University via:
1.
An Announcement Notice under ‘FedNews’ and through the University's Policy -
‘Recently Approved Documents’ webpage to alert the University-wide community of
the approved Policy;
2.
Inclusion on the factory Policy, Procedure and Forms website; and/or
3.
Distribution of emails to Manager / Directors / staff; and/or
4.
Documentation distribution e.g. posters, brochures.
This
Procedure will be implemented throughout the Factory / Organization via:
1. Lockout-Tag
out Procedures
2. Lockout-Tag
out Training (for authorized employees and affected employees),
3. Lockout-Tag
out Policy (often referred to as a program),
4. Lockout-Tag
out Devices and Locks,
5. Lockout-Tag
out Auditing - Every 12 months, every procedure must be reviewed as well as a
review of authorized employees
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