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6110 Lock,
Tag, Try (LTT) Program |
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1.0
Purpose
Lock, Tag, and
Try (LTT) is the approved method for securing hazardous
energy sources in order to provide personal protection while performing
maintenance and service work. Refer to Environmental, Safety, and Health (ES&H) Manual Chapter 6111
Administrative Control Using Locks and Tags for administrative
control applications.
This program satisfies the requirements of OSHA 29 CFR1910.147 The Control of Hazardous Energy (Lockout/Tagout); the standard used when servicing and maintaining equipment/systems.
Jefferson Lab’s construction subcontractors follow OSHA 29 CFR1926 Safety and Health Regulations for Construction; which is the standard for construction work activities. Subcontracting Officer’s Technical Representatives (SOTRs) are tasked with reviewing subcontractors programs for compliance.
2.0
Scope
LTT is required
whenever there is the potential for someone to be injured by the unexpected
start-up of equipment or by a release of stored energy during maintenance and
service work. Some typical situations
are when:
· Making repairs or performing routine maintenance to equipment that someone else might remotely activate.
·
Clearing a jammed mechanism.
·
Removing or bypassing a guard
or other safety device.
·
Placing any part of your body
where it could be caught by moving machinery.
·
Placing any part of your body
within the limited approach boundary of an exposed or un-insulated electrical
circuit.
·
Working on high-pressure
systems or on piping which contains hazardous
materials.
3.0
Responsibilities
NOTE: Management authority may be delegated at the discretion of the responsible manager.
3.1
Anyone
at Jefferson Lab
·
Recognize and respect LTT measures.
· Do not remove any lock or tag except those meeting the criteria outlined within ES&H Manual Chapter 6110 Appendix T2 Special Lock and Tag Removal Procedure.
3.2 Qualified Tagger
· Maintain appropriate LTT training (SAF 104 Lock, Tag, Try).
·
Obtain specific LTT training on equipment being serviced.
·
Perform LTT process
steps (in accordance with ES&H Manual Chapter
6110 Lock, Tag, Try (LTT) Procedure) only after authorization from the supervisor
of the equipment which requires the securing of the hazardous energy source.
3.3
Supervisor
·
Only assign Qualified Taggers,
and provide equipment-specific LTT training, for equipment under your authority.
·
Maintain familiarity with Jefferson Lab's LTT programs and procedures. (If you supervise employee(s) who use LTT procedures.)
·
Perform inspections for
compliance with lock and tag procedures as part of regular supervisory oversight.
3.4
Subcontracting
Officer’s Technical Representative
(SOTR)
·
Maintain LTT
qualifications. (If they supervise subcontractors
who perform LTT
on site.)
· Provide equipment-specific LTT procedures to subcontractors as needed.
·
Verify that long-term
service subcontractors are trained as Jefferson Lab Qualified Taggers and their training is current.
·
Implement group
LTT, and act as Group LTT Coordinator, in accordance with ES&H Manual Chapter 6110 Appendix T3 Group Lock, Tag and Try
Procedure, if Jefferson Lab employee(s) and subcontractor(s) under your authority are
concurrently working on the same equipment/system.
· Review and approve subcontractors’ Lockout/Tagout program. Ensure that:
o Construction – subcontractors’ program meets or exceeds the requirements of OSHA 29 CFR 1926 Construction Industry Regulations, when doing construction type work activities.
o Maintenance subcontractors’ program meets or exceeds the requirements of OSHA 29 CFR 1910 General Industry Regulations, when doing service or maintenance on machines or equipment.
·
Ensure all energy sources are
under LTT.
·
Account for all persons working
on the job/task.
·
Ensure all steps of the group LTT procedure are
properly carried out.
3.6
Safety
Warden
·
Assess effectiveness of the
functional locks and tags observed during routine safety inspections.
3.7
Electrical Safety Engineer
·
Conduct annual review of the
application of LTT procedures as outlined in OSHA 1910.147.
· Conduct inspections to ensure LTT procedures and requirements are being followed.
·
Provide
LTT training.
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NOTE: Questions concerning outsiders' actions and knowledge of LTT procedures should be made to the Electrical Safety Engineer. See also ES&H Manual Chapter 3410 ES&H Aspects of Procurements |
3.8 ESH&Q Training Committee
·
Coordinate LTT training
and regularly offer this training.
4.0
Technical Appendices
4.1
Lock,
Tag, Try (LTT) Procedure
ES&H Manual Chapter 6110 Appendix T1 Lock, Tag, Try (LTT) Procedure contains the guidelines for locking and tagging out of hazardous energy sources when maintenance or service work is to be performed. LTT references in this appendix apply to maintenance, service, and construction applications. Refer to ES&H Manual Chapter 6111 Administrative Control Using Locks and Tags for administrative configuration control applications.
4.2 Special Lock and Tag Removal Procedure
In accordance with Jefferson Lab procedures (ES&H Manual Chapter
6110 Appendix T1 Lock, Tag, Try (LTT) Procedure and ES&H Manual Chapter 6111
Administrative Control Using Locks and Tags) a lock and/or tag is removed
only by the Qualified Tagger who placed it on the equipment, or an authorized
person in the administrative
control scenario. If the Qualified Tagger
is unavailable, or the information is missing or illegible, ES&H Manual Chapter
6110 Appendix T2 Special Lock and Tag Removal Procedure is utilized.
4.3
Group
Lock, Tag, Try (LTT) Procedure
ES&H
Manual Chapter 6110 Appendix T3 Group Lock, Tag, Try (LTT) Procedure
provides members of a group a way to secure hazardous energy sources with
protection equivalent to that provided by the individual procedure outlined in ES&H Manual Chapter
6110 Appendix T1 Lock, Tag, Try (LTT) Procedure.
5.0
Revision Summary
Revision 1.2 – 02/18/13 - Clarification
of process steps per TKujawa.
Revision 1.1 – 12/01/11 - Clarification of process steps and updates made to format. Qualifying periodic review, no substantive changes required.
Revision 1 – 11/02/09 – Update to reflect current laboratory operations.
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ISSUING
AUTHORITY |
TECHNICAL POINT-OF-CONTACT |
APPROVAL
DATE |
REVIEW REQUIRED
DATE |
REV. |
Page 1 of 4 |
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ESH&Q Division |
11/02/09 |
12/01/14 |
1.2 |