Document Title

The Tata Power Company Ltd

Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Permit-To-Work (PTW) Procedure

Rev
Reason for Revision Prepared By Checked By Approval by
No.
Rev 00 First Release - - -
Sunil Bartakke Navendra Singh Vijay Chourey
Standardization of
Rev 01 (Head-Biogas & (Group Head – P & (Chief – Corp
Procedure
Lavasa Project) CB; Corp Safety.) Safety)

Alignment With SAP's

Permit-To-Work Navendra Singh
Rev 02 Vijay Chourey
(PTW)Management Sudhir Kumar (Head – Operation
Process (Corporate Safety) (Chief – Corp
Safety; Corp
Safety)
Safety.)

Note: Uncontrolled once printed Page 1 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Contents

Section Description Page No.

1.0 OBJECTIVES 3
2.0 SCOPE 3
3.0 EXPECTED RESULTS 3
4.0 ACCOUNTIBILITY & RESPONSIBILITY 3
5.0 GLOSSARY / DEFINITION 6
6.0 PROCEDURE 7
7.0 RECORDS 14
8.0 TRAINING & COMMUNICATION 14
9.0 VERIFICATION 14
10.0 EXCEPTION 14
11.0 REFERANCES 14
12.0 REVIEW 15
13.0 ATTACHMENTS/APPENDIX 15
- Annexure-1 : Permit- To-Work (PTW) - Status Sequence 16
- Annexure-2 : Permit -To-Work (PTW) Issuance Process 18
- Annexure-2 : Sheet 2 - Permit-To-Work (PTW) Return Process 19
- Annexure-3 : SAP Permit-To-Work (PTW) Process Flow 20
(Tabular Form)
- Annexure-4 : SAP Standard Report 21
- Annexure-5 : Permit-To-Work (PTW) Revalidation 22
(TPSMS/CSP/PTW/008/FORM/001)
- Annexure -6 {Tool-Box-Talk (TBT) TPSMS/CSP/PTW/008/FORM/ 23
002}.

Note: Uncontrolled once printed Page 2 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

1. OBJECTIVE:
To provide a standardized & uniform procedure for obtaining authorization to perform jobs require
special consideration to ensure the safety of personnel, and protection of facilities by using a safe
system of work and clear understanding between the working agencies / departments involved.

2. SCOPE:
This procedure applies to all operating and project sites of Tata Power Group companies.
3. EXPECTED RESULTS:
3.1. Manage jobs being done under Permit-To-Work (PTW) safely.

3.2. Control of incidents in Jobs related to Permit-To-Work (PTW).

3.3. Compliance to Regulatory requirements related to Permit-To-Work.

4. ACCOUNTABILITY & RESPONSIBILITY:

4.1 ACCOUNTABILITY: Concerned Division’s Heads / SBU Heads / Assets Custodian.
4.2 RESPONSIBILITY: Working department, Contractors.
4.2.1 SBU Head / Assets Custodian:
 Implement and manage the PTW system and provide necessary resources of expertise
in its application.
 Implement, apply, monitor and audit the Permit-To-Work System within the
respective area.
 Delegate various levels of authority in accordance with needs, subject to
appropriate training and competency.
 Oversee training programs for Permit Acceptors, Permit Issuers, Permit
Approvers, Area Operators and Gas Testers as applicable.
 Ensure that those who are appointed as Permit Acceptors, Permit Issuers,
Approvers and Area Operators are certified and competent to undertake the role.
 Ensure updated list persons certified and competent for PTW are available.
Preferably list to be displayed at conspicuous location.
 Ensure regular audit of PTW process as a whole.
 Receive feedback from the users of the PTW system.

4.2.2 Permit Creator / Initiator / Applicant / Acceptor

The permit creator / initiator / acceptor / Applicant is a person who initiate the PTW and after its
approval he accept it for performing the job. He / She shall be responsible for executing the entire
job in full compliance with the PTW requirements. His/her responsibilities include the following:

Note: Uncontrolled once printed Page 3 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

 Understand the potential hazards involve in the job.

 Ensuring that LOTO is performed at all points as applicable before the
commencement of the job.
 Understand how the hazards are controlled.
 Know the emergency situations likely to occur in the job / area and actions to be taken
including evacuation procedure.
 Ensure that the Permit Holder understands all the hazards and controls, explaining them to the
workers, and ensure that the controls are maintained throughout the execution of job.
 Inform all people who may be directly / indirectly affected by the job.
 Know the status of the job at all times, till its completion.
 Transfer duties formally as and when required.
 Know how to mitigate a possible incident, safe closure of job at such time, rescue of men and
material, arrange / administer medical aid if required.
 Knowledge of first aid and its administration.
 Is aware of the on-site emergency plan.
 Lead and take care of his group at times of emergencies.

Permit Creator / Initiator / Applicant / Acceptor is typically maintenance engineer or equivalent,

however terminology of this designation may vary based upon hierarchy/ organization chart.

4.2.3 Permit Issuer / Issuing Authority (Control Room Engineer)

The Permit Issuer shall be responsible for review the information provided and amend if required.

The Permit Issuer shall be responsible for the following:

 Confirm that all hazards associated with the job have been identified, assessed, managed and
all relevant parties have provided their inputs and agree with the precautions.
 Ensure that the PTW contains scope of the job and the documented controls mentioned are
adequate to ensure that the job can be completed safely.
 Ensure that all necessary supporting PTWs / Certificates / Checklist / JSA / drawings are
attached or referred to in the PTW.
 Ensure that the Permit Acceptor knows the exact location and scope of the job, all the hazards
that may be present and all the precautions and controls that must be taken and maintained
during execution of the job.
 Confirm that all operational preparations, including process clearance and isolations, de-
energizing and de-pressurizing have been completed.
 Lock out and Tag out (LOTO) shall be performed as per Tata Power LOTO procedure
(TPSMS/CSP/LOTO/001) and isolation shall be done as per Standard Operating Procedure.
 Confirm that the job site is safe for the job to proceed.
 Specify on the PTW any additional precautions that need to be taken during the job.

Note: Uncontrolled once printed Page 4 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

 Identify any conflicts between the proposed job and other jobs in the area, and if
necessary, cross-reference necessary controls in all such PTWs.
 Inform all persons who may be affected by the job.
 Know the status of the job at all times till it's completion,
 Ensure shift handover includes all ongoing or suspended PTWs with the upcoming Permit
issuer.

Permit Issuer / Issuing Authority is typically Control Room Engineer or equivalent, however
terminology of this designation may vary based upon hierarchy/ organization chart.

4.2.4 Permit Approver: Shift Incharge shall be a Permit Approver. The Permit Approver
shall be responsible for ensuring that the hazards have been evaluated, adequate controls are
provided and precautions are specified in the PTW. He/she is responsible for the following:
 Know the hazards including potential hazards and confirming that all hazards associated with
the job have been identified, assessed and managed and all relevant agencies / Departments
have provided their inputs and agreed with the precautions.
 Know how to control and manage hazards involve in the job.
 Verify that the job area is safe to commence and carryout job, including checking that
representative atmospheric sampling results are within the acceptable limits.
 Ensure that the PTW contains scope of the job and the documented controls mentioned are
adequate to ensure that the job can be completed safely.
 Ensure that all necessary supporting PTWs / Certificates / Checklist / JSA / drawings are
attached or referred to in the PTW.
 Confirm that the Permit Holder has been explained the exact location of the job, all the hazards
& risks that may be present and all the precautions and controls are taken care of.
 Confirm that all operational preparations, including process clearance, isolations, de-
energizing and de-pressuring etc. have been completed.
 Approve the PTW.
Permit Approver is typically Shift In- Charge or equivalent, however terminology of this designation
may vary based upon hierarchy/ organization chart.

4.2.5 Permit Holder - Person who is supervising the working party at the site and
executing the job.
The Permit Holder shall be responsible for commencing and completing the authorized job while
fully complying with all the requirements as mentioned in PTW. His / Her responsibilities include
the following:
 Know and understand the potential hazards involved in the job.
 Know and understand how the hazards are controlled.
 Know the right kind of PPEs required, ensure correct use and compliance thereof.

Note: Uncontrolled once printed Page 5 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

 Know the emergency situations likely to occur in the job / area and actions to be taken
including evacuating the area.
 Deliver the Tool-Box-Talk (TBT) to the workers involved prior to commence the job and
record the same.

4.2.5 Individuals working within the PTW system should ensure that:
• Received and understood safety instructions during TBT on the particular job and they
understand the hazards and the precautions taken or to be taken.
• Shall not start any job without valid PTW and TBT.
• In case of stop work, the site and any equipment they are using is left in a safe
condition
• If in any doubt or if circumstances change, they must stop work and consult with their
supervisor / Permit holder.

5 GLOSSARY/ DEFINITIONS:

PTW - Permit-To- Work

Permit-To-Work (PTW) system: A PTW system is a formal written system used to control and
execute certain types of jobs safely, which are identified as potentially hazardous. It is also a means
of communication between different departments, plant supervisors, operators, agencies etc.
Permit Creator / Initiator / Applicant / Acceptor: The Permit Creator / Initiator / Acceptor
/ Applicant is a person who initiate the PTW and after its approval he accept it for performing the
job. He / She shall be responsible for executing the entire job in full compliance with the PTW
requirements. Permit Creator / Initiator / Applicant / Acceptor is typically maintenance engineer or
equivalent, however terminology of this designation may vary based upon hierarchy/ organization
chart.
Permit Issuer / Issuing Authority (Control room engineer): The Permit Issuer shall be
responsible for review the information provided and amend if required. Permit Issuer / Issuing
Authority is typically Control Room Engineer or equivalent, however terminology of this
designation may vary based upon hierarchy/ organization chart.
Permit Approver: Shift Incharge shall be a Permit Approver. The Permit Approver shall be
responsible for ensuring that the hazards have been evaluated, adequate controls are provided
and precautions are specified in the PTW. Permit Approver is typically Shift In- Charge or
equivalent, however terminology of this designation may vary based upon hierarchy/
organization chart.
Permit Holder: Person who is supervising the working party at the site and executing the job. The
Permit Holder shall be responsible for commencing and completing the authorized job while fully
complying with all the requirements as mentioned in PTW.
Job Safety Analysis: Job safety analysis (JSA) is a procedure which helps integrate
accepted safety and health principles and practices into a particular task or job. In a

Note: Uncontrolled once printed Page 6 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

JSA, for each basic step of the job, it is to identify potential hazards and to recommend the
safest way to do the job.

6 PROCEDURES:
6.1 Applicability:
Valid Permit-To-Work (PTW) and approve Job Safety Analysis (JSA) shall be taken for all jobs
other than approved exception list. Exception list shall be prepared at each division and shall be
approved by division chief.
The Plant / installation which is completely under the supervision / custody of External party
/ contractor; as a principle employer, company has to ensure the PTW system must be in place.
Such PTW system those are from external party / contractors shall be approved by concerned
division chief.

6.2 Preparation
6.2.1 Co-ordination: It is important to ensure that job requiring PTW, shall be planned and
coordinated in order to avoid risks caused by simultaneous activities.

6.2.2 Planning : Careful planning of job requiring a PTW shall take place to ensure:
• Appropriate approval for the job.
• All persons in charge of areas which may be affected are made aware and hence take
precautions against possible interaction with other work activity
• Sufficient time to identify all potential hazards, implement precautions and prepare the
worksite. One suggested technique of achieving this is a Job Safety Analysis.

6.2.3 Job safety Analysis (JSA): Job safety Analysis (JSA) shall be done directly into the
system or alternatively it can be done externally and uploaded in the system.
6.2.4 Types of Permit-To-Work (PTW): The types of work for which PTW systems shall be
applied include maintenance and repair, inspection, testing, construction, dismantling,
modification and cleaning.
The types of Permit-To-Work (PTW) as per SAP-EHS include:
- General Permit
- Confined Space Entry Permit
- Electrical Permit
- Excavation Permit
- Hot Permit
- Lifting and slinging Permit
- Project Nature Permit
- Radiography Permit
- Working at Height Permit

Note: Uncontrolled once printed Page 7 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

6.2.5 Cross Reference: The objective of cross reference is to ensure that no interaction takes
place between work activities which might endanger the safety of personnel or the installation. The
PTW issuer shall, by knowledge of work going on in his area of responsibility, be aware of potential
interaction when issuing multiple PTWs for the same piece of equipment or system, or where there
may be potential conflict with adjacent work activities.
Such situations should be minimized by careful planning and suitable precautions which should
include an appropriate method of cross referencing the different tasks.

It may be that the interacting activities are covered by separate PTW issuers, in such cases close co-
ordination shall be necessary.

6.2.6: Process Flow of Permit-To-Work (PTW) in SAP:

SAP Notification Allotment to Maintenance Engineer

(By Operation Dept.) (By Concerned Head)

Self-Approval PTW Preparation NO Is it high

(Maintenance Engineer) (Maintenance Engineer) risk Job?

Yes
Approval of PTW
(Concerned Head) Safety Approval
(Safety Head)

PTW Clear Refer to Control Room Engineer

(By Shift In charge) for LOTO (Shift In charge)

PTW Acceptor PTW approved LOTO applied

(Maintenance Engineer) (Shift In charge) (Control Room Engineer)

PTW Holder Tool-Box-Talk (TBT) Site Restoration

(Supervisor) & Job Execution & PTW Closure

Note: Uncontrolled once printed Page 8 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

For all high risk jobs and Project nature Job, it is mandatory to take approval to
safety while processing the PTW.

If the job is high risk in nature then concerned Head has to change the status to High Risk Job
(HRJB) while assigning the Notification to Person responsible. Only concerned Head is authorized
to set the User Status LRJB & HRJB.

Permit initiator while preparing permits can still change job as high risk even if Concern head has
marked it as low risk.

If the Notification Status is “High Risk Job”, system will not allow to delete the concerned Head &
Safety Approvals in all types of PTW. If User tries to delete the Approvals, System will show error
message.

Concerned Safety Advisor shall check the adequacy of control measures defined in PTW and JSA
for all such high risk jobs. He may further recommend additional control measures before grant of
approval. At PTW clearing stage s/he is responsible to give their inputs in JSA & PTW and during
this s/he may not visit site, however subsequently during site visit s/he shall check deployment of
control measures.

Line management is wholly responsible for the implementation of JSA & PTW at site which has
been cleared by safety. Tool box talk (TBT) shall be done prior to start of each job and to be
recorded as per Annexure -6 {Tool-Box-Talk (TBT) TPSMS/CSP/PTW/008/FORM/ 002}.
PTW shall be displayed at site or alternatively it should be made available at site. Permit Holder
shall remain present at site during entire period of job.

6.2.7 Extension of Permit-To-Work (PTW): In order that effective control is maintained in

changing circumstances there shall be a limit on the life of a permit. Depending on the job,
extension of all PTW other Project Nature Permit shall be up to 7 days. Maximum extension
in case of project nature permit may be upto 30 days. It shall be necessary to intimate about
the extension of PTW to all concerns involved. All concerns shall maintain all existing
controls measures in place as mentioned in PTW & JSA.

6.2.8 Tagging: An essential ingredient of any safe system of work is the method and integrity of
the isolation procedure. The isolation principle to be adapted, prior to carry out maintenance or
repair, will be determined by a number of factors e.g. potential for pressure, dangerous
substances, lack of oxygen, moving machinery etc. It is beyond the scope of this document to
provided guidance on the isolation required for each potential hazards, please refer Standard
operating procedure of each equipments and Tata Power LOTO procedure -
TPSMS/CSP/LOTO/001. In case isolations are required,

Note: Uncontrolled once printed Page 9 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

the Issuing Authority will maintain the required isolations. Electrical team will be involved in
this step if electrical isolations are required.

The following additional points should be considered within the isolation

procedures:
• Complex isolations should be planned and recorded on a working drawing. This should be
discussed between the Permit Issuer and Permit Acceptor to ensure all isolation points are
clearly understood and agreed. The marked up drawing should be readily available to all
concerned. Consideration should be given to attaching a copy to the PTW.
• It is essential that the isolation standard is commensurate with the type of job being carried
out, plant operating conditions and other local influences.
• Isolation procedures should include all energy sources, i.e. mechanical, electrical, hydraulic
pressure etc.
• The tag or key number should be recorded on the PTW form or on a separate form which
should in turn be cross referenced and attached to the PTW form.
• isolation should only be applied and removed on instruction from the person issuing the PTW
• If more than one task is to be carried out on part of a plant or piece of equipment, there is a
risk that on completion of one of the tasks the isolations are removed and the equipment is
put back into service. Controls should be in place to prevent premature de-isolation where
dual tasks are involved
• if the work is not able to be completed within the shift the site should be checked by both the
Permit Acceptor and the Permit Issuer to ensure it is left in a safe condition and equipment
cannot be reinstated until all job shall be properly completed
• If the PTW is suspended, the status of the job site should be left on display in a suitable
location e.g. Control Room, and the isolation padlock keys kept in a secure place to ensure no
unauthorized access.

All persons authorized to carry out isolations should be assessed for their competence prior to
appointment i.e. they should
• Be suitably qualified
• Have experience on the plant/equipment
• Have received specific instructions on the plant, methods of isolation etc.
• Be able to demonstrate their knowledge by examination.
Their areas of responsibility shall be made quite clear.

6.2.9 Gas Testing: PTW preparation may involve a consideration of the likely presence of
flammable or toxic gases, or oxygen deficiency/enrichment, at the worksite.

Note: Uncontrolled once printed Page 10 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Where such a consideration is necessary then gas testing shall be undertaken.

Persons involved in gas testing shall be adequately trained in the use of gas testing equipment, and in
the interpretation of results.
The responsibility of what to test for, where to take samples, and the minimum number of samples to
take should lie with the Permit Issuer. Gas testing shall be done as close to the commencement of
work as possible.

Results of any gas testing shall be recorded and timed, as per Tata Power confined space entry
procedure (TPSMS/CSP/CSE/003- Annexure 05/form No TPSMS/CSP/CSE/003/FORM/003). In
case ambient parameters changes beyond acceptable levels during the work, the PTW shall be
suspended.

6.2.10 Signatures: Once PTW approved, auto generated mail shall go to Permit Initiator to
execute the job as requested in PTW. Signature of Permit Holder and respective field operation
engineer (area / equipment owner) shall be taken on initial issue of PTW and thereafter for
revalidation on each day/shift as applicable.

6.3 Process

6.3.1 Display of Permit-To-Work (PTW): It is important that permits shall be displayed so the
persons who need to be aware of them, or to refer to them, are able to do so.

Copies should normally be distributed/displayed as follows:

• At the worksite. Where this is not practicable (e.g. at an exposed location), the Permit
Acceptor of the job should retain the copy, having ensured that the working party members
are familiar with its content and control measures.
• At the main control / co-ordination room, where these should be displayed in a systematic
arrangement.

6.3.2 Revalidation: Permit-To-Work (PTW) should be revalidated in order that the Permit Issuer
can satisfy himself that the conditions under which the PTW was originally issued remain
unchanged to allow work to continue.

Revalidation shall be done on next day before start of the same job as per Annexure 5
Permit-To-Work (PTW) Revalidation
(TPSMS/CSP/PTW/008/FORM/001). It can be revalidated upto 7 days only except project
nature permit. For project nature permit revalidation may be done upto 30 days. The
maximum validity of the permits is defined and revalidation beyond this period are not
allowed. In such cases, the PTW is closed and a new PTW shall be issued.

6.3.3 Suspension: In the event of any of the following circumstances occurring during the course
of an activity under permit, the Permit Holder must refer back to the Permit Issuer (through Permit
Acceptor) on the appropriate course of action:

Note: Uncontrolled once printed Page 11 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

 The specified equipment or tools to be used not being available.

 Any changes in the type and nature of work.
 Occurrence of any condition / situation during the progress of the work that was not
anticipated.
 Any change in the process condition or the surrounding. (E.g. unexpected release of gas from
a nearby tank).
 An emergency in the area.
 Any change in the weather condition.

6.3.4 Shift Hand-overs: Shift changeovers can be one of the most vulnerable times for the PTW
system. The failure to pass on information or the correct information has been shown to be
the cause of many accidents. There is sufficient overlap to allow proper review and
discussion of the status of all Permit-To-Work.

Written means of communicating information can be by:

• PTW Log Book
• PTW Files
• Display Boards
• Computer Screen/Print Out
Or a combination of any of the above. Whichever arrangements are adopted, the shift
handover arrangement shall be monitored regularly to ensure its continued effectiveness.

6.3.5 Action in an Emergency / break down situation: During emergencies, when working
party is not able to generate notification, PM order and hence PTW; in such situation control
room will use WCT6 and WCT7 to create safety tag number for the outage. However,
maintenance engineer will have to generate - notification, PM order, PTW subsequently and
attach safety tag (by using WCLE & WCD transaction) number. No safety norms to be
violated and standard SOP to be followed. For more details please refer "SAP – PM Training
Manuals (Use of WCT6 & WCT7 - Guidelines Emergency Outages) available at Sangam
web page at following path -
Saarthi > Project Saarthi > Training > Module > Plant Maintenance (PM) > 2.
PM Processes - Others> 06. Creating Safety Tags (WCT6 & WCT&) without
PTW-Emergency Outages.

6.3.6 Monitoring: The monitoring of the PTW shall be during entire span of job execution by
Permit Holder.

Note: Uncontrolled once printed Page 12 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

6.3.7 Trial Required After Maintenance Work: If trial of equipment is required to be taken
after the maintenance work is completed, the temporary un-tagging cycle is initiated. (Refer
Tata Power LOTO procedure (TPSMS/CSP/LOTO/001 Rev 01) 6.5 Temporary Removal of
Lockout/Tag out Devices)

Process is initiated by authorized person by activating the button “Untag temporarily” in the work
clearance document, and system status is updated as BTUG - Untag temporarily. (Annexure-1
Permit- To-Work (PTW) - Status Sequence)

Tags are removed from the field and system is restored to original condition. After the tags are
removed and the system condition is restored the authorized person activates a button in the work
clearance document “Temporarily untagged” and the system status is up-dated as ETUG –
Temporarily Untagged.

Trial is taken for the system and after successful completion of the trial, the authorized person
activates the button “Tagged” in the Work Clearance document and system status is updated as
ETG – Tagged.

If trial is unsuccessful then Maintenance team (Permit Initiator) have two options based on the
scenario.

If work can be done to rectify the problem, then the isolations of the field equipments will be done
again using the temporary untagging cycle as explained above. Temporary untagging cycle will be
repeated using the same tags and field equipments will be isolated. Work will be executed in the
equipment and further trial will be taken.

However, if work cannot be executed again and a scope change in work is required then the PTW
shall be closed. Untagging of the field equipments will be done and work clearance document shall
be closed. Scope change in work shall be handled by creating a sub order through Work Order
Management and new PTW will be created.

6.4 Completion
6.4.1 Work Completion: When the maintenance work is completed then maintenance person
indicates in the work order system that work is completed by activating Work Completed
Button on order header and the System Status is updated to WOCO – Work completed.
Order operations are confirmed and order is updated with a system status as CNF –
Confirmed.

Note: Uncontrolled once printed Page 13 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

6.4.2 Closing of Permit-To-Work (PTW): After the Work is completed the Permit-To-
Work (PTW) is surrendered and the PTW is closed and the System Status is updated as CLSD –
Closed.

The system provides a facility to automatically set CLSD status on the Permit-To-Work (PTW)
when Maintenance order gets WOCO status.

6.4.3 Un-Tagging Process: After the Permit-To-Work (PTW) is surrendered then un-
tagging process is initiated by activating the button “Untag” in the Work clearance document
and the System status is up-dated as BUG – Untag.

System is restored to original condition as per the un-tagging conditions in the Work Clearance
document and tags are removed from the field equipment and with proper housekeeping of job site.
Authorized person will activate the button “Untagged” in the Work Clearance Document and the
system status is updated as EUG – Untagged.

6.4.4 Closing the work Clearance Documents: After untagging of the isolation the Work
Clearance Document is closed and the system status is updated as CLSD – Closed.

6.4.5 Closing of Maintenance Order: After the PTW is closed, the order is technically
completed and the system status is set to TECO – Technically Completed. The order cost is
then settled by the finance section to the respective cost center and order is business
completed and system status is up-dated as CLSD - Completed.

6.4.6 Housekeeping: Housekeeping shall be ensured before the start of job as well as after the
completion / cancellation of job. Permit-To-Work (PTW) shall be closed only after
restoration of housekeeping of the Job site.

7 Records:

Filled Permit-To-Work (PTW) – Retention Period - One year

Filled Permit-To-Work (PTW) Revalidation (TPSMS/CSP/PTW/008/FORM/001) -– Retention
Period - One year
Record of Tool-Box-Talk (TBT) TPSMS/CSP/PTW/008/FORM/ 002} – Retention Period -
One year

8 TRAINING & COMMUNICATION

8.1 Training of Permit-To-Work procedure shall be carried out to cover for following-
(i) Permit Issuer,
(ii) Permit acceptor,

Note: Uncontrolled once printed Page 14 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

(iii) Permit Holder,

(iv) Permit approver.
List of trained and competent person in PTW as a Permit Issuer, acceptor, holder & approval shall be
displayed at conspicuous location.
8.2 Initial Communication to be done through Corporate Communication, Email and
subsequently shall be made available at safety portal at Sangam

9 VERIFICATION
Verification of implementation shall be done during Permit-To-Work (PTW) procedure audit, field
safety visit and site inspections.

10 EXCEPTION: Any Exception to this procedure shall only be done as per Document
Control .Procedure (TPSMS/GSP/DC/014).

11 REFERENCES
 EPM 04.01.02 - Safe Working Procedures
 Indian Factory Act 1948 and State Factory Rules (As amended)
 SAP PM Work Permit Management Process - PM_Work_Permit_Management_04
 Excavation Safety (Shoring and Sloping) Procedure - TPSMS/CSP/EXS/002
 Tata Power LOTO Procedure - TPSMS/CSP/LOTO/001
 Tata Power Job Safety Analysis (JSA) Procedure - TPSMS/CSP/JSA/009
 Tata Power Hazard Identification & Risk Assessment (HIRA) Procedure -
TPSMS/GSP/HIRA/005
 Tata Power Confined Space Entry Procedure - TPSMS/CSP/CSE/003
 Tata Power Work At Height Procedure - TPSMS/CSP/WAH/004

12 REVIEW: Review of this procedure shall be done as and when but not later than once in every
three (03) years. Typical Factors like Changes in legislation, Review of Incident Reports,
Inspection & Audit findings, Feedback from users, Recommendations in Incident investigation
reports may be inputs for the review and revision of the procedure.

13 ANNEXURES:
Annexure-1: Permit- To-Work (PTW) - Status Sequence Annexure-2:
Sheet 1 - Permit -To-Work (PTW) Issuance Process
Sheet 2 - Permit-To-Work (PTW) Return Process
Annexure - 3: SAP Permit-To-Work (PTW) Process Flow (Tabular Form)

Note: Uncontrolled once printed Page 15 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Annexure -4: SAP Standard Report

Annexure-5: Permit-To-Work (PTW) Revalidation
(TPSMS/CSP/PTW/008/FORM/001)
Annexure-6: Tool-Box-Talk (TBT) TPSMS/CSP/PTW/008/FORM/ 002}

Annexure -1

Permit- To-Work (PTW) - Status Sequence

During the process of the isolations, execution and completion of work, the system status of Header
and Item level gets up-dated based on the processing phase. The processing phase could be as
follows –
- Tagging Phase
- Un-tagging phase
- Temporary Un-tagging Phase

System Description Remarks

Status
CRTE Created When the Work Clearance Document is created the system status
is set to CRTE – Created.
PREP Prepared After review of the Work Clearance Document Header and Item
data the WCD system status is set to PREP –
Prepared. This will allow for the approval and Tagging process.

CHNG Change WCD status PREP is revoked.

CLSD Closed After the items are untagged the WCD status is set to CLSD –
Closed and the WCD is completed in the system.
ITG Initial Tagging WCD items system status is set to ITG – Initial Tagging Condition
Condition when the WCD is set to Prepared condition. The
items cannot be deleted from the WCD document after ITG status
is set to the items.
PROC Processing When the Tagging process is initiated System status is set to
Processing.
BTG Begin Tagging WCD items system status is set to BTG- Begin Tagging status
when tagging process is initiated by activating the
“TAG” button.
PTAG Print Tag WCD items status is set to “PTAG” status when tag printing
button is activated for printing the Tags from the system
ETG End of WCD items system status is set to “ETG” - Tagged status when
Tagging “Tagged” button is activated after the items are physically isolated
and tags are placed on the isolated
items.
INAC Inactivated WCD item status is set to INAC- Inactivated status if WCD item is
not relevant and items already have system status
ITG.

Note: Uncontrolled once printed Page 16 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

BTUG Begin Temporary WCD items status is set to “BTUG” status when “Untag
Untagging Temporarily” button is activated for Trial purposes.

ETUG End of WCD items status is set to “ETUG” status when

Temporary “Temporarily Untagged” button is activated after conditions are
Tagging restored for trial purposes.
TEST TEST Cycle Permit trial cycle in progress
PTST Print Test Tag WCD items get “PTST” status when tag printing button is
activated for printing the Tags from the system for test cycle.

UNT Untaggable WCD items get UNT – Untaggable status to indicate items
can be untagged.
BUG Begin WCD items get “BUG” untag status when “Untag” button is
Untagging activated to begin Untagging Process
EUG End of WCD items are set to “ETG” Untagged status when “Untagged”
Untagging button is activated.

Note: Uncontrolled once printed Page 17 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Annexure-2

Sheet 1

Permit -To-Work (PTW) Issuance Process

Note: Uncontrolled once printed Page 18 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Annexure- 2

Sheet 2

Permit-To-Work (PTW) Return Process

Note: Uncontrolled once printed Page 19 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

Annexure- 3
SAP Permit-To-Work (PTW) Process Flow (Tabular Form)

Work Work Step Description SAP T-code/Out of

Step # SAP/Other
Permit Issuance Process
1 Create Work permit in maintenance order IW31/IW32
2 Identify affected departments & types of work permit IW32/IPMD
required for the job like PTW (Hot Work Permit,
Confined Space)
3 Attach JSA/HIRA if required
4 Prepare the work Permit & inform operations for WCLE
approvals.
5 Can maintenance of equipment be done? (YES:7 Manual
NO:6)
6 Reject the work Permit Document with comment WCLE
and Email alert to all the concerned Dept
7 Approve Permit WCLE
8 Are other maintenance dept involved? (YES:9 NO:12) Manual

9 Notify relevant departments Workflow

10 Preparedness is ensured Manual
11 Confirm preparedness WCLE
12 Print Permit Document & TAGS WCLE
13 Carry out Isolations at site/LOTO & inform the Manual
concerned to activate the work Permit
14 Safety tags are assigned Manual
15 Activate Work Permit/Tagging WCLE
16 Email alert to person who created the order Workflow
Permit Return Process
1 Job is executed in field Manual
2 Clear WCD and LOTO WCLE
3 Is Equipment trail required (YES 4, NO 10) Manual
4 Take Operating Permit
5 Trail Taken Manual
6 Record Results
7 Is Trail is OK (YES 10 NO 8)
8 Create new WCD/Safety Tags WCLE

Note: Uncontrolled once printed Page 20 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

9 Carry Out LOTO Manual

10 All permits are returned & Work Permit is WCLE
closed/Untagging
11 Email alert will be sent to Shift In Charge/Section Head Manual
for breakdown Main for Equipment Category A and B

Annexure- 4

SAP Standard Report

Report title Transaction Comment

code ( SAP GUI)
List Work Approvals IP16 A list of all work approvals will be displayed
with respective status such as ‘created’, ‘closed’,
etc.
List Work Clearance WCL6 A list of all work clearance applications will
Applications be displayed
List maintenance IW39 A list of all selected maintenance orders is
orders displayed.
Equipment list IH08 An equipment list with general data and more
information.
List of Work Clearance WCL2 A list of all work clearance document templates
Document templates will be displayed

Note: Uncontrolled once printed Page 21 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

TPSMS/CSP/PTW/008/FORM/001 Annexure- 5

Permit-To-Work (PTW) Revalidation

Details: Day 2 Day 3 Day 4 Day 5 Day 6 Day 7

Date:

Time: From

Time :To

Signature & Name of Permit

Issuer

Signature & Name of Permit

Accepter / Holder

Signature & Name of Area

Operator (if applicable)

Note: Uncontrolled once printed Page 22 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

TPSMS/CSP/PTW/008/FORM/002 Annexure- 6

Tool-Box-Talk (TBT) Record

Tool-Box-Talk (TBT) Date :

Location/Venue :
Permit-To-Work (PTW) No. :

Time :
Tool Box Talk conducted by :
Name of the Contractor / dept. :
Name of the Contractor’s Supervisor :
Number of Workmen Present :

COMMON POINTS TO BE STATUS Brief Discussion on Job to be performed

DISCUSSED
 Use of proper PPEs
 Use of proper Tools
 Barriers & Signs
 Emergency Vehicle &
First Aid Box
 Enquiry of Health Status

SN. Name of the Workmen Gate Pass No. Sign

1
2
3
4
5
6
7
8
9
10
11
12
13
14

Note: Uncontrolled once printed Page 23 of 23

 Document Title
The Tata Power Company Ltd
Permit-To-Work Procedure
Document Ref No.
TPSMS/CSP/PTW/008 Rev 02 Date of Issue: 16/01/2017

15

Sign & Name of Tool-Box-Talk (TBT) conducted by:

Note: Uncontrolled once printed Page 24 of 23