LOTO Pre-outage Activity Guidelines

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The objective of the Lock Out Tag Out (LOTO) checklist is to provide a tool to identify and then secure the various energy sources related to a gas or steam turbines.

This should be used by the customer as a guide and may not include all energy sources. Therefore, this should be verified using the Piping Instrumentation Diagram (P&ID), Electrical System Schematics, walking down the local configuration and any other tools to ensure the equipment has been identified that will be de-energized.

The checklist is intended to engage the end-customer and verify the completeness of their LOTO process during pre-outage. It will also be used during the verification walk down of the LOTO process prior to commencement of works along with TAB M of the OneGE Plan

LOTO CHECKLIST OBJECTIVES

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Pre-outage Activities / Timeline

Pre-planning Period

Outage Execution

Outage Start

2 Months Prior 3-Month

Pre-outage meeting

7 days

prior

TCM / CPM

sends the LOTO

Checklist to

customer

Customer Identifies the

system Idenfitication numbers& Secondary

Control

(Grounds, breaker,

etc.)

"Appendix K"

filled by SM /

CPM / TCM GE Lead FE or

TCM review the

" LOTO

checklist "

7 days

prior

GE Lead FE /

TCM / CPM /

Customer

"system

walkdown" to

identify the

additional

LOTO point

Customer provides

"LOTO Checklist to

GE" and feedback

session held

During

System LOTO

GE Lead Fe / TA &

Customer use the

last revision of

"LOTO cheklist"

and

fills "TAB M"

GE TCM / CPM

release the

last revision of

"LOTO

checklist"

7 days

prior 1 Month Pre-outage

meeting

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WHEN : 7 days prior to 3- month Pre-outage Meeting

WHO : TCM / CPM

WHAT: TCM / CPM sends the LOTO Checklist to customer

HOW:

Chose proper LOTO checklist.V2 as per the scope

Consult with LTA

If the scope does not MI, HGP or CI, chose proper one which covers the lines needs to be isolated.

Pre-outage Activities

Just Version 2

has this detail !

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WHEN : Until 3- month Pre-outage Meeting

WHO : Customer

WHAT: Customer Identifies the system Idenfitication numbers & Secondary Control (Grounds, breaker, etc.)

HOW:

By drawings or customer lists

If system Idenfitication numbers is not available, note the location of the respected isolation point

Pre-outage Activities

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WHEN : 3- Month Pre-outage Meeting

WHO : TCM / CPM / SM

WHAT :

a) Customer provides "LOTO Checklist to GE" and feedback session held.

b) Fill the "Appendix K"

HOW :

Review the "LOTO Checklist" which customer added system Idenfitication numbers & Secondary Control"

Appendix K includes generic information of customer LOTO

Pre-outage Activities

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WHEN : 7 days prior to 1 month Pre-outage Meeting

WHO : TCM / Lead FE

WHAT : GE Lead FE or TCM review the " LOTO checklist "

HOW :

Does any other line needs to be isolated for this scope? (as per experience & knowledge)

Additional controls needed?

Review !

Pre-outage Activities

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WHEN : 1 month Pre-outage Meeting

WHO : GE Lead FE / TCM / CPM / Customer

WHAT : GE Lead FE / TCM / CPM / Customer "system walkdown" to identify the additional LOTO point point

HOW :

Physical system walkdown.

Verify last "LOTO checklist" reviewed by Lead FE,

Be open for constructive discussion with customer.

Pre-outage Activities

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WHEN : 7 Days Before Outage Start

WHO : CPM / TCM

WHAT : GE CPM / TCM release the last revision of "LOTO checklist"

HOW :

Share with customer, GE SM, Lead FE

Lead FE shares it with shift TA.

Pre-outage Activities

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WHEN : Outage day during LOTO Walkdown

WHO : Shift FE, Safety Specialist, Customer

WHAT : During System LOTO GE TA & Customer use the last revision of "LOTO cheklist" and fill "TAB M"

HOW : Perform LOTO Walk down, place GE LOTO locks on

identified points or Customer LOTO Box (depend on the GE aggreed Customer system)

Ensure that all the lines isolated properly and Lock&Tag applied.

Record the key numbers vs isolated lines.

Fill Tab M - Lock Out/Tag Out Clearance Control Proof of Isolation Agreement ( as per OneGE EHS Plan requirement)

Outage Activities

GT & ST LOTO Checklists V2

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GAS TURBINE Checklist

CI HGPI MI GENERATOR

STEAM TURBINE Checklist

Minor Major Valves GENERATOR

GT & ST LOTO Checklist V2

Just Version 2

has this detail !

Questions