TITLE:

ES&H Manual

 

DOCUMENT ID:

3320 Temporary Work Permits

 

 

1.0          Purpose

 

Certain hazardous, recurring activities performed at Jefferson Lab are restricted and only undertaken when authorized by a temporary work permit.  These work permits ensures that all hazards have been considered and associated risks have been acknowledged and mitigated. 

 

The following activities have been identified as requiring a temporary work permit prior to execution:

 

·       Permit-Required Confined Space Entry

·       Energized Electrical Work

·       Fire Hazardous Work

·       Radiological Work

·       Dig/Blind Penetration

 

2.0          Scope

 

Because of the severe consequences which could occur during the above noted activities, they have been provided for in separate documents as noted above.  These procedures, as outlined, provide for a thorough hazard evaluation.

 

3.0          Responsibilities

 

Responsibilities are outlined within the associated documents.

 

4.0          Referenced Documents

 

4.1            Confined Space Entry Permit (See ES&H Manual Chapter 6160 Confined Space Entry)

 

Jefferson Lab defines a “PRCS” to be any area that meets all of the following criteria:

 

·       Sufficient space for a person to enter and perform work;

·       Limited/restricted means for entering/exiting;

·       Not designed for continuous occupancy;

AND

·       An actual or potential hazard.

 

Typical PRCS hazards include:

 

·       A hazardous atmosphere;

·       Toxic materials that affect the skin or can be absorbed through it;

·       A material with the potential for engulfing a person or hindering quick escape;

·       Internal configuration that could trap a person.

 

Entry is not allowed into a PRCS if there is a hazard that cannot be mitigated to RC<2 or lower by use of conventional controls (as listed on a permit).  Inform the Confined Space Coordinator if this situation exists.

 

4.2            Energized Electrical Work (See ES&H Manual Chapter 6220 AC Electrical Equipment Safe Work Program)

 

Work performed on AC electrical power distribution system at Jefferson Lab with equipment in an energized state requires an approved Energized Electrical Work Permit as described in ES&H Manual Chapter 6220 AC Electrical Equipment Safe Work Program.  The permit establishes the justification for working on “live” equipment, the required training qualifications of the workers, and any unusual aspects of the work.  See ES&H Manual Chapter 6220 Appendix T1 Energized Electrical Work Permit (EEWP). 

 

NOTE:  Diagnostic work is permitted without an EEWP as long as it is performed in accordance with ES&H Manual Chapter 6220 AC Electrical Equipment Safe Work Program Paragraph 4.1.2.

 

4.3            Hot Work Permit (See ES&H Manual Chapter 6900 Appendix T1 Fire Protection: Hot Work Permit)

 

Work that presents an inherent risk of creating a fire is restricted at Jefferson Lab.  Open-flame and spark-producing activities such as welding or soldering, are authorized by a Hot Work Permit.  See ES&H Manual Chapter 6900 Appendix T1 Fire Protection: Hot Work Permit.

 

4.4            Radiological Work (See Jefferson Lab Radiological Control Supplement)

 

Activities which present the possibility of significant exposure to ionizing radiation are restricted at Jefferson Lab.  Such activities are allowed only after careful analysis and planning to minimizing personnel exposure.  Exposure must be As Low As Reasonably Achievable (ALARA).

 

Jefferson Lab’s Radiation Control Group initiates and authorizes Radiological Work Permits (RWP).  It informs workers of entry requirements and radiological conditions in the work area, and provides mechanisms to reduce worker exposure.

 

A Radiological Work Permit is required for any of the following situations:

 

·       Anticipated radiation dose rate to the trunk of a worker's body – usually measured 30 cm (1 ft) from the work piece – is greater than 25 mR/hr

·       Total estimated dose to a worker exceeds 25 mrem

·       Workpiece measures 250 mR/hr or greater on contact

·       Entry into a posted contamination, High Radiation Area, or Airborne Radioactivity Area is necessary

 

Contact Radiation Control at x7551 (876-1743 cell phone) to initiate a RWP.

 

4.5            Dig/Blind Penetration Permit (See Facilities Management’s Excavations and Blind Penetrations into Walls & Floors)

 

Excavation, digging, boring into soil; drilling or cutting blind penetrations into floors and wall; and demolition at Jefferson Lab is performed only after utilities have been located and marked by a competent person.

 

If you have work that requires digging or drilling into soil or blind penetration into walls or floors with tools or fasteners complete a permit request found at http://www.jlab.org/fm/ under Fillable Forms – Digging/Excavation Permit.

 

5.0          Revision Summary

 

Revision 0.2 – 10/12/12 – Periodic Review.  Minor clarification edits only.

Revision 0.1 – 03/23/12 – Update to Web Chapter format.

Revision 0 – 10/05/09 – Update to reflect current laboratory operations.

 

 

 

ISSUING AUTHORITY

TECHNICAL

POINT-OF-CONTACT

APPROVAL DATE

EXPIRATION DATE

REV.

 

 

ESH&Q Division

Harry Fanning

10/05/09

10/12/15

0.2

 

This document is controlled as an on line file.  It may be printed but the print copy is not a controlled document.  It is the user’s responsibility to ensure that the document is the same revision as the current on line file.  This copy was printed on 10/12/2012.