WORK PERMIT SYSTEM
Definition: = MeaningAn organized method which authorizes specific
activity such as
Construction,
Maintenance,
Inspection
or
Repair
in areas identified by
management as restricted and which represent
a potential
Hazard
to company operations,
personnel or equipment
AIM OF THE WORK
PERMIT SYSTEM
? AUTHORIZATION-of Specific Work, in a Specific Location, inside Restricted Areas
? SAFETY – provide a Safe Work Location by
identification and elimination of Hazards and lists Minimum Precautions for working Safely
? COMMUNICATIONS – awareness
? RECORD KEEPING – provides an official record of events and agreements
? ACCESS CONTROL – limits personnel in Hazardous Areas
WORK PERMIT SYSTEM
BASIC TERMS
RESTRICTED AREAS:
1. AREAS WHERE HYDROCARBONS, FLAMMABLE LIQUIDS, GASES OR OXIDIZING AGENTS, ARE HANDLED, STORED, PIPED OR PROCESSED, IN SIGNIFICANT QUANTITIES.
2) WITHIN 200 FEET OF POWER LINES.
3) WITHIN 100 FEET OF PIPELINES.
4) AREAS OR ACTIVITIES WHICH HAVE BEEN
WORK PERMIT SYSTEM BASIC TERMS
? DESIGNATED REPRESENTATIVE: (CHOSEN)
A COMPETENT EMPLOYEE, DESIGNATED
(CHOSEN) BY THE ISSUER, WHO IS FAMILIAR
WITH THE REQUIREMENTS OF THE WORK PERMIT SYSTEM AND IS ABLE TO PERFORM ASSOCIATED WORK PERMIT DUTIES. HE DOES NOT SIGN THE WORK PERMIT.
? ISOLATION:
A PROCESS WHEREBY THE SYSTEM OR
COMPONENT, IS REMOVED FROM SERVICE AND IS COMPLETELY PROTECTED AGAINST THE
UNPLANNED ENTRY OF ENERGY, WHETHER IT BE CHEMICAL, MECHANICAL, ELECTRICAL OR
REQUIREMENTS OF
ISSUING/RECEIVING PERMITS
?
KNOWING THE
SCOPE
OF WORK
?
KNOWING
AND
UNDERSTANDING
THE
TYPE(S) OF PERMIT(S) NEEDED
?
SPECIFIC
HAZARD IDENTIFICATION
?LOCATION
?
JOINT SITE INSPECTION
SCOPE means RANGE OF WORK SPECIFIC means (ACCURATE)
HOT WORK
ANYTHING THAT CREATES
FLAMES
,
HEAT OR OTHER
IGNITION SOURCES
SUCH AS:
?
HOT TAPPING.?
WELDING AND TORCH CUTTING.?
VEHICLE ENTRY.?
FLASH PHOTOGRAPHY, ABRASIVE GRINDING BLASTING, AND GRINDING.COLD WORK
WORK THAT DOES NOT CREATE AN IGNITION
SOURCE - HEAT, FLAME OR SPARK
?
BRUSH PAINTING
?
HAND TOOL WORK
?
INSPECTION
RELEASE PERMIT
POTENTIAL RELEASES OF HAZARDOUS
GASES & CHEMICALS SUCH AS:
?
SWINGING BLINDS
?
GAS FREEING EQUIPMENT
?
VENTING TO ATMOSPHERE
?
OPENING LINES
?
DEPRESSURIZING HIGH PRESSURE AIR
LINES
CONFINED SPACE PERMIT
ENTRY OF PERSONNEL INTO ANY SPACE OR
STRUCTURE
NOT
NORMALLY INTENDED
FOR HUMAN OCCUPANCY, IN WHICH
ENTRY
,
MOVEMENT
OR
EXIT
IS
RESTRICTED
? TANKS,
TOWERS,
VESSELS,
EXCAVATIONS 4
ftOR
DEEPER,
SUMPS,
SEWERS,
VALVE PITS,
VESSEL SKIRTS
PEOPLE INVOLVED IN
WORK PERMITS
EACH CRAFT MUST HAVE A SEPARATE PERMIT
?
CERTIFIED ISSUER
? ISSUES WORK PERMIT ONLY AFTER:
? VISITING THE SITE TOGETHER WITH THE RECEIVER
? PERFORMING GAS TEST
PEOPLE INVOLVED IN
WORK PERMITS (CONT.)
? CERTIFIED RECEIVER
? REQUESTS WORK PERMIT FROM OPS.
? ISSUER & RECEIVER ARE RESPONSIBLE FOR: ? COMPLYING WITH CONDITIONS AND
REQUIREMENTS
? KEEPING COPY OF PERMIT IN POSSESSION OR WITHIN VIEW OF THE JOB SITE
? STOPPING WORK
JOINT SITE INSPECTIONS
? DISCUSS SCOPE OF WORK ? GAS TESTING
? LOCKOUT/HOLD TAGS
? SAFETY EQUIPMENT NEEDED ? PROCESS HAZARDS
? ISOLATION/DEPRESSURIZATION ? PHYSICAL HAZARDS
CLOSING A WORK PERMIT
? “WORK PERMITS SHALL BE CLOSED BY RECEIVER AND ISSUER EXCEPT WHEN:”
? DISTANCE OR REMOTENESS MAKE SIGNING IMPRACTICAL
PERMIT HAZARDS
?
FLAMMABILITY/COMBUSTIBILITY
? LOWER EXPLOSION LIMIT (LEL) – TOO LEAN? UPPER EXPLOSION LIMIT (UEL) – TOO RICH ? FLAMMABLE RANGE – MIXTURE WILL BURN LIMITS:
? ANY READING ABOVE 0% LEL- NO HOT WORK PERMITTED.
? 5% TO 50% LEL- SCOT AIR PAK USED FOR COLD WORK ONLY
? ABOVE 50% LEL – NO ENTRY PERMITTED NO WORK PERMITTED
PERMIT HAZARDS (CONT.)
?
HYDROGEN SULFIDE- TOXICITY
?
10 PPM,
CAN SMELL,
PERMISSIBLE
FOR
8 HOURS
ONLY
.
?
100PPM,
KILLS SMELL IN
3-15 MINUTES
?500PPM,
UNCONSCIOUS IN
15 MINUTES
?700PPM, BREATHING
STOPS WITHIN
MOMENTS
?
1000PPM, IMMEDIATE
UNCONSCIOUSNESS AND
DEATH
IF NOT
PERMIT HAZARDS (CONT.)
?
OXYGEN
?
21% - IS NORMAL
?
LESS THAN
20%
, REQUIRES
DIV. HEAD
APPROVAL + SAP
?
ABOVE 23.5%
EXTREME
FLAMMABILITY HAZARD
?
EXPOSURE TO
LESS THAN 16%
CAUSES
DURATION OF WORK
PERMITS & EXTENSIONS
? NORMAL DURATION IS FOR 8 –HOURS ONLY
? CAN BE INCREASED TO 16 – HOURS IF SIGNED BY ISSUER AND RECEIVER COMING ON SHIFT
? UP TO 30 DAYS FOR CERTAIN JOBS WITH DIVISION HEAD APPROVAL
GAS TEST LIMITS
H2S )PPM) 0 - 10 OK TO WORK
11 – 100 SCOTT AIR PAK
> 100 SCOTT AIR PAK & SUPT. APPROVAL
OXYGEN (%) 20 – 23.5 OK TO WORK
<29 & > 23.5 SCOTT AIR PAK & SUPT. APPROVAL
FLAMMABLE GAS (% LEL)
0.0 HOT WORK
0.5 CONFINED SPACE ENTRY
5 – 50 COLD WORK WITH SCOTT AIR PAK
ISOLATION, LOCKOUT, AND
USE OF HOLD TAGS
? TYPES OF ENERGY SOURCES EXAMPLES: ? ELECTRICAL ? FLUID ? GASEOUS ? MECHANICAL ? CHEMICAL
ISOLATION, LOCKOUT, AND
USE OF HOLD TAGS
? MEANS OF ISOLATION
WHEN THERE IS A POTENTIAL ENERGY, THE SOURCE SHALL BE ISOLATED
? BLINDS
? CLOSING AND LOCKING OF VALVES ? REMOVAL OF PIPING
? OPENING AND LOCKING CIRCUIT BREAKERS ? DISCONNECT POWER SUPPLIES
ISOLATION, LOCKOUT, AND
USE OF HOLD TAGS
? PROCEDURES
? SPECIFIC ISOLATION, LOCK, HOLD AND TAG PROCEDURES
? EACH DEPARTMENT IS RESPONSIBLE FOR
IMPLEMENTING LOCKOUT PROCEDURES AND TRAINING
? OPERATIONS AND MAINTENANCE SHALL PROVIDE LOCKOUT EQUIPMENT
? OPERATIONS SHOULD BE FIRST ON AND LAST OFF LOCK
ISOLATION, LOCKOUT, AND
USE OF HOLD TAGS
? LOCKS
? EACH CRAFTSMAN SHOULD HAVE HIS OWN LOCK ? ONE LOCK, ONE KEY
? TAG MUST HAVE NAME AND PHONE NUMBER AT MINIMUM
? FORCED REMOVAL REQUIRES TWO
EXCEPTION TO OBTAINING A
WORK PERMITS
? EMERGENCY ONLY
? STILL MUST DO THE JOB SAFELY