|Chapter 6122 Hot Work (i.e. Welding, Cutting, Brazing, and Grinding) Safety Program|
Hot work (e.g. welding, brazing, or spark producing grinding or cutting) is a common part of Jefferson Lab's fabrication and construction activities. Because of the high temperatures involved and the potential for fire and serious personal injury, care is taken to ensure that work is performed safely. This hot work safety program has been developed to document Jefferson Lab's minimum safety requirements for this type of work.
This program satisfies applicable federal, state, and local requirements as outlined in ES&H Manual Chapter 2410 Appendix T1 Hazard Issues List. (Note: A copy of the "American National Standards Institute (ANSI) document Z49.1, Safety in Welding, Cutting, and Allied Processes" is available through the Environmental, Safety, Health, and Quality (ESH&Q) Department, contact the Technical Point-of-Contact for this document.)
This chapter and its associated appendices apply to all hot work performed at Jefferson Lab.
At Jefferson Lab there are two types of areas in which hot work is permitted. These are:
(i.e. a weld shop) - established by an Operational Safety Procedure (OSP). (See ES&H Manual Chapter 3310 Operational Safety Procedure Program for more information.)
The following special welding operations require the following considerations over and above that of the permanent welding area:
Requires a Hot Work Permit outlining the specific safeguards to be used. (See ES&H Manual Chapter 6900 Appendix T1 Fire Protection: Hot Work Permit for more information.)
Table 1: Required Hot Work Safety Training by Job Classification
T1 Hot Work Station Set-up and Safe Operating Procedures (Includes Oxygen/Fuel Safety)
There are a number of inherent hazards associated with hot work operations. Appropriate work station set-up is one method to avoid hazards. ES&H Manual Chapter 6122 Appendix T1 Hot Work Station Set-Up and Safe Operating Procedures (includes Oxygen/Fuel Safety) outlines Jefferson Lab's minimum requirements for station set-up and equipment maintenance.
T2 Hot Work Personal Protective Equipment (PPE)
Jefferson Lab recognizes that hot work exposes workers to certain recognized hazard issues, some of which can be mitigated through the use of appropriate personal protective equipment (PPE). ES&H Manual Chapter 6122 Appendix T2 Hot Work Personal Protective Equipment (PPE) provides information on how to: determine the appropriate PPE, and obtain it.
T3 Inspection of Welding and Cutting Equipment
Annual inspections of welding and cutting equipment are required to ensure it is kept in good operating condition. ES&H Manual Chapter 6122 Appendix T3 Inspection of Welding and Cutting Equipment outlines the responsibilities and process steps established by Jefferson Lab to ensure compliance with this requirement.
T4 Hot Work Area Posting Requirements
Jefferson Lab recognizes that hot work is inherently dangerous. ES&H Manual 6122 Appendix T4 Hot Work Area Posting Requirements defines Jefferson Lab's labeling and posting requirements; and how to update, repair, and maintain these labels.
T5 Hot Work Ventilation/Respiratory Requirements
Respiratory hazards are often associated with hot work operations (in particular welding). In order to control exposure to harmful gases/fumes, local or general exhaust ventilation is required during welding operations. ES&H Manual 6122 Appendix T5 Hot Work Ventilation/Repiratory Requirements provides Jefferson Lab's minimal hot work ventilation requirements.
Note: Management authority may be delegated at the discretion of the responsible manager.
Qualified Hot Work Operator
Supervisor/Subcontracting Officer's Technical Representative (SOTR)/Sponsor
QA/CI Senior Technical Specialist
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