Lockout-Tag Out (MOL)

7/26/2019 Lockout-Tag Out (MOL)

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You will learn

1. Purpose of Lockout - Tagout

2. Requirements for LOTO3. Types of Hazardous Energy

4. Procedures for LOTO


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Why Logout / Tagout

1. Protects maintenance personnel from powerbeing reapplied by mistake

2. Recommended by API RP 54 for electricalsystems in drilling and servicing operations

3. Recognized hazard


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Definitions

Affected employee

Job requires employee to

o Operate or use a machine or equipment onwhich servicing or maintenance is beingperformed under lockout or tagout, or

o Work in an area in which such servicing ormaintenance is being performed


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Definitions

Authorized employee

o Locks out or tags out machines orequipment in order to performservicing or maintenance

o

Affected employee whose dutiesinclude servicing or maintenance underthis section


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DefinitionsEnergized

Machines and equipment are energized when

o Connected to an energy source or

o Contained residual or stored energy.

Energy isolating Device

This is any mechanical device that can physicallyprevent the transmission or release of energy.

These include, but are not limited to, manuallyoperated electrical circuit breakers, disconnectswitches, line valves, and blocks.


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Definitions

Lockout device

Any device that uses positive means such as a

lock, either key or combination type, to hold an

energy- isolating device in a safe position.

Tag out device

The tag indicates that the machine or

equipment to which it is attached is not to be

operated until the tag out device is removed.


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LOTO Deviceso Durable

o Standardizedo Substantial

o Identifiable

Tags must also warn against hazardousconditions, must include a legend such as thefollowing:

o DO NOT START

o

DO NOT OPENo DO NOT CLOSE

o DO NOT ENERGIZE

o DO NOT OPERATE


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LOTO Devices


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LOTO Devices

Mechanical Energy LOTO

o Chains, Blocking, Locking Pins, or otherhardware shall be used for isolating,securing, or blocking of machines or

equipment from mechanical energy sources.Process, Hyd. & Pneumatic Energy LOTO

1. Single block valves

2. Double block and bleed3. Disconnection of piping

4. Blinding


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Types of Energy

1 Electrical

2 Mechanical

3 Chemical

4 Thermal

5 Hydraulic

6 Pneumatic

7 Gravitational

8 Nuclear

9 Process


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Electric Shock Can Kill

As little as 30 volts can carry enough current

to kill


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Safe Electrical Practices

1. Use non-conducting tools

2. Check circuits dead before working

3. Lock & Tag source breakers not switches

4. Ensure all control power is de-energized

5. Discharge all capacitors after Lockout


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Mechanical Energy Hazards

2 Types

Kinetic - in motion

Potential - Stored


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Kinetic Energy Hazards

Energy of moving machinery can cause

AmputationsLacerations

Fractures

Loss of life


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Potential Energy Hazards

1. Energy stored in machinery

2. Weights& Springs

3. Pistons under pressure4. Hydraulic controls

Stored potential energy can be released

during work causing injury or death


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Chemical Energy Hazards

Chemicals have energy that can

Start fires

Cause skin burns

Generate harmful gases or fumes

Before working

Release

Drain

Vent chemicals safely


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Thermal Energy Hazards

Energy of Heat (and cold)

1. Hot equipment & fluids will burn you

2. Cold fluids can also cause injury

3. Quick release of compresses gases can freeze

your skin

4. Allow equipment to reach a safe temperature

before starting work.


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Hydraulic Energy

Energy of Liquids Under Pressure

Can cause equipment to move

Rapid release can cause injury

Or ejection of system parts

Relieve pressure slowly into a proper container


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Pneumatic Energy Hazards

Energy of Compressed Gases

1. Uncontrolled release can cause injury

2. Rapid de-pressurization creates extreme

low temperature

Properly vent all systems before starting work


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First Step In LOTO

Know your equipment & systems

1. Hazards

2. Isolation points

3. Procedure for lockout

Working on unfamiliar machinery is a hazard


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Who Can Lockout / Tagout

Only Employees who have beentrained and authorizedby

management


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Items needed for LOTO

1. Written LOTO SOP

2. Locks & Tags - identified to the worker

3. Hasps- for placing locks & tags

4. Breaker Clips - for electrical LOTO

5. Blank Flanges - for fluid lines

6. Valve Covers - for LOTO of Valves

7. Plug Buckets - for electrical plugs


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Use of Locks & Tags

1. Use only those issued to you

2. Never use another workers lock or tag

3. Ask if you need more LOTO equipment


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6 Step LOTO Procedure

1. Prepare for Shutdown

2. Shutdown Equipment

3. Isolate all energy sources4. Release Stored Energy

5. Place Locks & Tags

6. Verify Equipment Isolation


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1. Prepare for Shutdown

1. Understand equipment hazards

2. Notify other workers of shutdown


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2. Shutdown Equipment

1. Use normal shutdown procedure

2. Turn all switches to OFF

3. Shut all control valves

4. Disable all sources of energy


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3. Isolate All Energy Sources

1. Shut valves

2. Open breakers & disconnects


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4. Place Locks & Tags on

1. Valves

2. Breakers / electrical disconnects

3. Block or disconnect all lines

4. Lock and tag blank flanges


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5. Release / Block Stored Energy

1. Discharge capacitors

2. Block or release springs

3. Block elevated parts

4. Stop rotating flywheels

5. Relieve system pressure

6. Drain fluids7. Vent gases

8. Allow system to cool


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6. Verify Equipment Isolation

1. Check all other workers are clear

2. Check locking devices securely placed3. Check isolation

4. Attempt normal startup

5. Return Controls to OFF / Neutral


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Release from LOTO

1. Inspect Area and Equipment

2. Ensure all Machine Guards in place

3. Move tools away from equipment

4. Inform others of startup

5. Restore system connections

6. Remove Locks & Tags7. Restore equipment to normal

8. Conduct normal startup


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Who can remove Locks & Tags?

Only the employee who placed the tag

ORa supervisor, After Obtaining Permission

from the worker who placed the tag


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Already LOTO. Do I have to place my own

LOTO ?????

YESEach person working on the quipment must place

their own locks and tags to ensure their safety.


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Lockout-Tagout Protects YOU!

USE Proper Lockout

Tag-out Procedures

Please be careful

when working on

equipment


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Thank You

Documents

Lockout-Tag Out (MOL)