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6122 Appendix T2 Fire Protection: Hot Work Permit |
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1.0
Purpose
A Hot Work Permit
(HWP) is the primary tool used to prevent fire at Jefferson Lab. This appendix provides direction for the use
of a HWP at
Jefferson Lab. Any work activity that
requires an open flames (greater than a BIC lighter); welding or brazing
activities; and spark
producing grinding or cutting operations are restricted and require a HWP
unless they are performed in approved areas established as a weld shop by a Standard
Operating Procedure (SOP).
2.0
Scope
A HWP authorizes hot work
performance outside approved areas including Tungsten Inert Gas/Manual Inert Gas
(TIG/MIG) welding.
Electron beam welding and vacuum brazing are excluded from this requirement.
The
Fire Protection Engineer is responsible for approving HWPs. The issuance of a HWP demonstrates that
specific actions have been taken which reduce the risk for a defined time
period not to exceed five consecutive days.

3.0
Responsibilities
Supervising Authority/ Subcontracting
Officer’s Technical Representative (SOTR) (the individual responsible for the successful outcome of the
hot work operation)
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·
Prepares the HWP.
·
Identifies
site-specific flammable materials, fire hazards, or hazardous processes present
or likely to be present in a hot work
area, including areas below and adjacent to the hot work
area.
· Assures safe operation during the hot work activities.
· Designates fire watches when the circumstances justify. More than one fire watch is required if combustible materials could be ignited by the hot work operation and cannot be directly observed by the initial fire watch.
· Verifies that the job preplanning and notifications have been accomplished.
· Forwards the HWP to the Fire Protection Engineer for the final authorization.
·
Posts the completed HWP in
the work area.
·
Re-inspects
the hot work
area daily and validates the continuation of activities by initialing the
posted HWP.
· Submits expired HWP to Fire Protection Engineer to assure removal from service.
Fire Protection
Engineer
Hot Work Operator
·
Has
current Fire Safety Training
·
Reviews
fire
watch responsibilities with the designated fire watch.
· Ensures the proper personal protective equipment (PPE) is used during the work.
· As defined in ES&H Manual Chapter 6122 Welding, Cutting, Brazing, and Grinding
·
Has current Fire
Safety Training.
· Reviews fire watch responsibilities with Hot Work Operator.
· Maintains watch for 30 minutes after completion of the hot work operation in order to detect and extinguish smoldering fires.
4.0
Process Steps
The HWP
form can be accessed at: 
4.1
Introduction
Provide initial information describing the work. The “Start Date” is the date the permit is
required.
4.2
Fire Watch
A fire watch
is required if the hot work is
performed in a location where any of the following conditions exist:
·
Combustible
materials in building construction or contents are closer than 35ft (10.7 m)
from the point of operation.
·
Combustible
materials are more than 35ft (10.7 m) away but are easily ignited by sparks.
·
Wall or floor openings
within 35ft (10.7 m) radius expose combustible
materials in adjacent areas, including concealed spaces in walls or floors, or
if people are in these adjacent areas.
·
Combustible
materials are adjacent to the opposite side of partitions, walls, ceilings, or
roofs and are likely to be ignited.
·
Oxy–fuel gas welding
and cutting operations in an underground structure.
·
Roof of a building; at
any elevated level.
·
Outdoors within 35ft
(10.7 m) of vehicles, mulched areas, or vegetation.
4.3
Supervising
Authority Inspection Checklist
a. Inspect the equipment to be used for the hot work. Verify that it is in satisfactory operating condition and in good repair. Do not continue until it is.
b. Move all combustibles at least 35ft (10.7 m) away from the hot work area or provide appropriate protection. Be aware of combustibles that, because of their characteristics (dust, fibers, fumes), could ignite even though they may be >35ft from the work area. Be especially alert to fragments that may be hurled by grinders. Mitigate hazards.
c.
Assess the work area
for processes that may be directly or indirectly affected by the hot work. (Examples: cryogenics, pneumatics,
electrical, compressed gas systems.)
Denote the hazard and the control used. (Example: lockout/tagout.)
4.4
Fire System Safety
a. Determine if the sprinkler system is fully functional. Contact Facilities Management (ext. 7400) for information or assistance.
b. Determine if smoke and heat detectors need to be temporarily
disarmed. Contact Facilities Management
x7400 to disarm alarms.
i.
Develop an alternative
alarm mechanism, if necessary, for periods when alarms are disarmed.
c. Ensure that there is a fully charged, operable, and appropriate
type fire extinguisher available to the fire watch. A fire watch
must possess a dedicated appropriate type fire extinguisher at all times during
the watch. Facilities Management (x7400)
can provide the appropriate type.
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d. Note the location of the nearest fire alarm pull station
e. Note the location of the nearest building fire extinguisher
4.5
Other Considerations
a. Communicate potential hazards to any potentially affected
individuals.
·
Brief any affected
workers on the system of the heat and smoke alarm status.
b. Evaluate the ventilation system (if in doubt, contact Jefferson
Lab safety staff for guidance before beginning the work)
c. Determine and provide appropriate PPE to workers.
d. Additional industrial hazards may be involved with the planned work that must be considered and mitigated. Determine if the work involves:
· Pressurized Systems
4.6
Special Precautions
Note any special precautions taken (fire resistive
blankets, wetting of floors, screens, etc.).
4.7
Authorizations
a. Supervising Authority – signs to indicate that all job preplanning
and notifications have been accomplished.
b. Fire Protection Engineer – signs to denote final approval of HWP.
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ISSUING
AUTHORITY |
APPENDIX
AUTHOR |
APPROVAL
DATE |
EFFECTIVE
DATE |
EXPIRATION
DATE |
REV. |
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ESH&Q Division |
01/15/2009 |
01/15/2009 |
01/15/2012 |
1 |
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