Key Questions
The following key questions are answered in this module:
What is a line break?
The opening of a pipe, line, duct, or vessel that contains or has contained hazardous material. This can be an accidental or intentional opening.
What are some line break hazards?
Flammable or combustible materials, oxidizing materials, corrosive materials, toxic materials, carcinogens, very cold materials, very hot materials, pressurized fluids and gases, steam, and strong vacuum.
What should be done before starting a line break?
Making a job plan and getting an approved line break permit.
What does a job plan include?
Reason line break is being made, potential hazards, plan for isolating or clearing line or equipment, PPE needed, personnel roles and responsibilities, and an emergency plan.
Should lockout/tagout procedures be used during a line break?
Yes, follow standard lockout/tagout procedures.
What are four methods for reducing the chances of an accidental release of hazardous materials?
Isolating, venting, draining, and purging.
What are two methods of isolation?
Blanking and double-block and bleed.