PERMIT TO WORK (PTW)

TOPIC- PERMIT TO WORK SYSTEM (PTW)

INTRODUCTION

A permit to work system provides a systematic discipline approach to assessing a risk of job & specifying the precautions to be taken while performing hot work. Cold work or working in a confined space.

The Permits to Work Systems

1)       Specifies the work to be done & to be equipment to be used.

2)      Specifies the precautions to be taken when performing the task.

3)     Gives permission for the work to start.

4)     Advises occupants of building that work is being performed within their building.

5)     Provides a check to ensure that all safety consideration have been taken into account. Including the validity of permits & certificates & compliance to the policies & procedures

6)      On completion of work it provides a checking mechanism that all work has been completed for the satisfaction.

Purpose

The PTW system termalised process to control work and access to identified areas designed to prevent incident in the work place. The written system is used to control certain types of work areas that are potentially hazardous and contains a permit to work document which specifies the work to be done. & the precautions to be taken. The process authorizes work only after safe procedures have been defined and they provide a clear record that all foreseeable hazards have been considered.

Scope:-

This guideline outline the permit to work system in at reducing the risk of incident related to potential hazardous activities or work areas. This guideline is applicable to all staff and contractors working at all locations.

Types of Permit:-

Following are the types of permit

1)       Hot work permit

2)      Cold work permit

3)     Confined space entry work permit

4)     Electrical isolation work permit

5)     Blanket permit

6)      Vehicle entry work permit

7)      Radiation Permit

1)       Hot Work Permit

A permit issued for works like welding, cutting, grinding etc.  A work in which a flame, spark or heat and heavy machinery involved.

2)      Cold work permit:-

A permit issued for works likes housekeeping, painting, washing etc.

3)     Confined space entry work permit:-

A Permit which is specially given to perform works in all types of confined space. E.g. works in vessel tanks, pipeline, trench etc.

4)     Electrical Isolation Work Permit:-

A permit given to perform all types of electrical works like new erection, repairing, maintained etc.

5)     Vehicle entry work permit:-

A permit given mainly for vehicles to enter or roam within the plant

Note: - As a safety to enter in to the plant spark arrester should be fitted to the silence of the vehicles.

6)      Blanket permit

These are special types of permit which are usually given once in a six month or a year. Such permit is mainly given to laboratory, workshops and hot working areas.

7)      Radiation work permit

Radiation Work Permits (RWPs) are used to control radiological work by specifying Dress requirements for a job, respiratory protection requirements, dosimetry Requirements, and work restrictions. Special work instructions may be added to protect Members of the project.

Work not requiring a permit:-

Activities involving a routine production & process operation including start up, changes in operational mode & shut down do not require a permit to work. Routine work includes & first line maintained carried out by operations personnel such as topping up oil / water, tuning controls etc.

Following are areas there are permit are not required like-

a)     Fire station

b)     Fire training ground

c)      Works carried out by operations departments as petrol routine operations.

The Validity of a permit:-

Is mainly for eight hour (One Shift) & it can be renewed necessary for one more shift.

Issuing Authority:-

Generally granted to shift supervisor and officers or any person who is responsible to issue a permit should have through knowledge of the work to be perform and the condition under which is the work will be perform.

(SOME IMPORTANT PTW QUESTION & ANSWER)

1.        What Is Permit To Work?

Ans: - A permit to work system provides a systematic discipline approach to assessing a risk of job & specifying the precautions to be taken while performing hot work, Cold work or working in a confined space.

2.      What Is Hot Work Permit?

Ans: - A permit issued for works like welding, cutting, grinding etc.  A work in which a flame, spark or heat and heavy machinery involved.

3.      What Is Cold Work Permit?

Ans: - A permit issued for works likes housekeeping, painting, washing etc.

4.      Explain The Different Section/Contains In The Permit?

Ans:-

1)       Job Layout

2)      Hazard Identification

3)     Preventive measures/controls

4)     PPE Requirement

5)     Supplementary Documents

6)      Signature of issuer & acceptance

7)      Permit revalidation

8)     Work completion/cancellation

5.      What Is Vehicle Entry Work Permit?

Ans: - A permit given mainly for vehicles to enter or roam within the plant

6.      What Is Confine Space Work Permit?

Ans: - A Permit which is specially given to perform works in all types of confined space. E.g. works in vessel tanks, pipeline, trench etc.

7.      What Is Electrical Isolation Work Permit?

Ans: - A permit given to perform all types of electrical works like new erection, repairing, maintained etc.

8.      What Is Radiation Work Permit?

Ans: - Radiation Work Permits (RWPs) are used to control radiological work by specifying Dress requirements for a job, respiratory protection requirements, dosimetry Requirements, and work restrictions.

9.      What Is Blanket Permit?

Ans: - These are special types of permit which are usually given once in a six month or a year. Such permit is mainly given to laboratory, workshops and hot working areas.

10. Some non- work routine which required Permit to work?

Ans. Non routine activities such as:

ü  Working at height

ü  Working on high voltage electrical system

ü  Working or entering at confine space

ü  Hot work activities

ü  Maintenance work of Heavy Machinery.