|Chapter 3320 Temporary Work Permits|
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:
Because of the severe consequences which could incur 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.
Confined Space Entry Permit
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:
Energized Electrical Work
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. Refer to ES&H Manual Chapter 6220 Appendix T1 Energized Electrical Work Permit (EEWP).
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. Refer to ES&H Manual Chapter 6900 Appendix T1 Fire Protection: Hot Work Permit.
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). Refer to the Jefferson Lab Radiological Control Supplement.
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:
Digging and Excavating Permit Request
See https://www.jlab.org/fm/Digging_Permit.pdf. Permits are required on JLab property for any mechanized excavations or any excavation using hand tools that penetrate the ground greater than 12 inches. Before the permit can be approved, a competent person must locate and mark the utilities.
Floor, Wall and Ceiling Penetration Permit Request
See https://www.jlab.org/fm/Blind_Permit.pdf. Cutting/Drilling blind penetrations into walls, floors, and ceilings at Jefferson Lab requires a Floor, Wall and Ceiling Penetration Permit Request before work is performed. If you need to penetrate further than 1.5 inches into Concrete Masonry Unit (CMU) walls, through the thickness of gypsum-board sheet (self-drilling wall anchors do not require a permit), or over 2 inches into the top side of a concrete floor/slab (less than 2 inches requires that you use a drill stop); complete a Floor, Wall and Ceiling Penetration permit Request. Permits are always required for any penetrations into the bottom side of any concrete floor.
Responsibilities are outlined within the associated documents.
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