Identifying
and Controlling Hazards
Course 101
Safety Certified Supervisor Series
MODULE FIVE: CONTROLLING HAZARDS
Engineering Controls
Enclosure of Hazards
When you cannot remove a hazard and cannot replace it with a less hazardous alternative, the next best control is enclosure. Enclosing a hazard usually means that there is no hazard exposure to workers during normal operations.
There still will be potential exposure to workers during maintenance operations or if the enclosure system breaks down. For those situations, additional controls such as safe work practices or personal protective equipment (PPE) may be necessary to control exposure.
Some examples of enclosure designs are: