Principle of Risk Control (HOC)
Principle of Risk Control (HOC) :
Elimination - Eliminate the need to perform tasks on mechanical equipment, process systems, and human contact with hazardous energy through robust design (e.g., installation of long-range refueling systems to eliminate the need for manual intervention by human).
Engineering measures - Reduce the possibility of exposure to dangerous energy when performing tasks on mechanical equipment, process systems through engineering control measures (e.g. physical protection and ensuring that all energy isolation devices are locked, etc.).
Management - Minimizes exposure to hazardous energies through engineering control measures (e.g., implementation of risk assessments, establishment of safe operating procedures, licensing, training, supervision, etc.).
Personal Protective Equipment (PPE) - Use personal protective equipment (PPE) such as arc protective clothing to minimize the possibility of exposure to dangerous energies.
Site Hazardous Energy Risk Assessment (HERA) - All site must carry out HERA for operations performed on conveyors (e.g., belt conveyor, reamer, zipper, bucket conveyor) and operations requiring LOTO approval. HERA will serve as the basis for developing hazardous energy control procedures for equipment and process systems. The oHERa must be documented using the appropriate risk assessment template.
Hazardous energy Control procedures for machinery, equipment, process system - After completion of HERA, the site must develop a specific set of equipment and process system HECP to clearly indicate each equipment and process system HECP to clearly indicate the safety isolation measures for each equipment and process system hazardous energy source.