Firstly, they are determined by the structure. Secondly, they are determined by the circumstances the space is entered. And finally, when a person’s head or upper body enters the space.
DANGERS CONFINED SPACE AND RESCUE
Why do they pose dangers ? Because the space usually is not accessible for people work. Furthermore, poor ventilation usually occurs. As a result, this allows hazardous atmospheres to quickly develop. Above all, hazards are not always obvious and may change from one entry to the next. In conclusion these hazards can make rescue difficult in the event of an incident.
In addition to Height Safety Equipment and PPE, confined space along with rescue equipment usually make up a complete solution. Above all these solutions allow workers safe entry. Specifically, they allow for personnel positioning, fall arrest, patient handling and recovery from the space.