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7/28/2019 Workpermitsys PLL http://slidepdf.com/reader/full/workpermitsys-pll 1/30  WORK PERMIT HSE DEPARTMENT PETRONET LNG LIMITED, DAHEJ

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Page 1: Workpermitsys PLL

7/28/2019 Workpermitsys PLL

http://slidepdf.com/reader/full/workpermitsys-pll 1/30

 

WORKPERMIT

HSE DEPARTMENT

PETRONET LNG LIMITED, DAHEJ

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Page 3: Workpermitsys PLL

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CONTENTS

The session includes the following:-  Presentation on PLL Work Permit

system followed by discussion

Role of Issuing & Executing Authority

How to fill the permits.

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WHY WORK PERMIT?

Basic purpose of permit system is to

prevent injuries to personnel.

Protect property from damage.

Avoid fire.

Ensure that all work is carried out in

safest manner. Permit specifies the conditions and

procedure for safe execution of the

 job.

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WORK PERMIT REQUIREMENTPermit is required for the following jobs :

Major & Minor Maint. work.

Inspection.

Construction / Alteration.

Height job.

Process Equipment cleaning

Entry into confined space.

Excavation

Vehicle entry into plant areas, etc.

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WORKS -

PERMIT NOT REQUIRED Works carried out as a part of routine

operation.

FIRE STATION activity

GTG Operation

Regular activity in non-ops area.

Housekeeping

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TYPES OF PERMITS

Hot Work Permit

Cold Work Permit

Electrical Lock Out Permit

Excavation Permit

Vehicle Entry Permit

Vessel Entry Permit

Work at height Permit

Photography Permit

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COLD WORK

Any work which does not likely to produce

sufficient heat capable of igniting flammable

gases or combustible material.

 

Insulation job

Painting jobCivil job

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WORK AT HEIGHT PERMIT

Required for all areas in the plant.

For any job more than 2 meter height or above head level height or fall hazard

exists at the location. (Telephone tower,

roof work, light replacement work, HVAC

work, etc)

Clearance from HSE is required.

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EXCAVATION PERMIT

Required for all areas in the plant.

For any job more than 300 MM (1 feet)

Depth.

Excavation route / Location drawing is

required.

Clearance from Operation, Electrical,

Instrument, Fire, IT & HSE is required.

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VESSEL ENTRY PERMIT

Confined Space  Required for entry of all closed vessel &

pipeline, Sintex water tank, Sewage tank,

etc. Clearance from Operation & HSE is

required.

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VEHICLE ENTRY PERMIT

Required for entry of all Vehicles.

Clearance from Operation & Security is

required.

Clearance from HSE is required in case of 

entry of HSD tanker, N2 tanker, Crane etc.

Document Required (Valid driving Licence,

RC book, PUC, Vehicle insurance, CCOElicence in case of HSD & N2 tanker and load

test certificate for crane)

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WORK PERMIT CONTENT Date of work Permit issued

Date & Time up to which Work Permit is authorizedwith validity period

To whom Work Permit is issued

For What job Work Permit is issued

Hazard & risk Associated with the job.

Precautions & Safeguard to be taken for the job.

PPE to be used & wear by the person carrying out

the job.

 Additional Precautions & Safeguard to be taken for 

the job.

Name & Signature of person/s authorized the work

permit.

Daily Permit closure information.

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Special instructions printed on thepermit

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RESIDUAL HAZARDS

Lack of oxygen

Chlorine or any other toxic gases

Combustible gases

Corrosive chemicals

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PROTECTION MEASURES

Protective clothing

Hearing protection

Safety Harness

Eye protection

Face protection Respiratory protection

Keep fire equipment stand-by

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PROTECTIVE MEASURES 

CONTD.

Barricade the area

Remove flammable and combustible

Cover with fire retardant sheet

 Attendance with Airline set

keep man ways open

 Allow minimum possible no. of personsinside confined space

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PROTECTIVE MEASURES

CONTD.

To ensure positive isolation & maintain

it all through.

Ensure adequate ventilation all through.

Display copy of entry permit near entry

manhole.

Standby person outside confined space,

manhole, water tank, etc.

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GAS TEST FOR WORK

PERMIT

Why gas test is required ?

Most of the gases are unwanted.

Hazards involved – 

Flammability (Fire & Explosion)

Toxicity (health hazard)

Oxygen Deficiency

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GAS TEST CONTD

Common flammable gases/liquids interminal are -

Methane (Natural Gas)

HSD

Hydrogen

Chlorine

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WORKS NEED GAS TEST

Gas tests are required for all hotwork and confined space entrypermits .

Issuing authority shall determine therequirement of gas test & frequencyof re-checking.

Trained Gas tester only shall carryout the test.

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RESPONSIBILIES OF GAS

TESTING AUTHORITY To check & confirm that the gas testing

instrument is working in perfect condition

before proceeding for the area/equipment

To carry out gas test at all criticallocations/positions

To advise on safe method to work inside/at

the location i.e., further gas freeing , use of PPE etc.

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ELECTRICAL ISOLATION

Before issuing a Work Permit, it isessential to ensure that the equipment /

facility to be worked on is electrically safe

and electrical power is isolated to the

extent necessary for the safe conduct of the authorized work.

Issuing, Executing authorities and

Electrical Maintenance shall jointly decide

the extent of isolation required.

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‘DO NOT OPERATE’ tag shall be usedwhen isolation by local switch is decided

as adequate protection.

Multi-lock systems to be used when

different permits are involved.

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REQUIREMENTS FOR

CONFINED SPACE ENTRY The process vessel / equipment is to be

positively isolated by blinding.

Shall be made safe for entry by

depressurizing, venting, draining,steaming, washing and ventilating.

Radiation sources, if any, shall be

removed.

The atmosphere within the confinedspace shall be checked initially and

periodically (Oxygen gas test, LEL

checking).

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Work Permit Flow ChartUnderstand the task Identify

hazards

& assess risks

Identify precautionsto be taken &

PPE to be used

Fill up the permit at MCR.Permit acceptance by receiver

Ensure all precautionare taken

Handover the permit

to supervisor tocarry out the task

Explain the detailsto person carrying

out the job

Carry out the job safe wayas per work permit

After job completion,receiver signs the permit

Permit closure

Ensure supervisor presenceat the site

START

END

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DISCUSSION

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