subject: Types Of Confined Spaces [print this page] Confined spaces are very common in workplaces, and the more a business understands them, the better it can take steps to ensure that employees are safe while on the job. Below, find information about the various types of confined space.
Close Quarters
This type of confined space is typically the most recognizable. In a sense, it refers to any space in which a person would get claustrophobic. Think underground vaults, pits, pipes, manholes or any other space in which movement is very limited. For these types of confined spaces, the right confined space rescue tools are essential. If a person becomes trapped or panicked in a tight squeeze, rescue can become very difficult. It is recommended that a trained expert be on hand to provide assistance if a worker is required to squeeze into any tight spot.
Limited Entry and Exit
Unlike items that would fall in the "close quarters" category, spaces with limited entry and exit points can be massive. Silos and storage areas are a good example of this type of confined space. Exits can be either difficult to locate or hard to reach. These areas can be dangerous because rescue is often difficult. Larger confined spaces present such challenges as locating a person, communicating with workers and escaping a dangerous situation.
For tasks in this type of space, it is suggested that a trained professional capable of descents and retrieval be on site. In addition, a worker in this type of space should have open lines of communication with someone on the outside. If the space is too large, a person could become trapped without his fellow workers knowing about it.
Areas with Hazardous Gases or Limited Oxygen
Examples of this type of confined space can include accessible or inaccessible, tight or wide open -- but they have the added danger of the occupant falling unconscious or dying because of the presence of a noxious gas or a lack of oxygen.
Fertilizer tanks can be highly hazardous, for example, as can sewer systems. Underground tanks and vaults that typically receive very little ventilation can become hazardous simply because of the lack of oxygen. A person could become weak very quickly, meaning he or she is unable to communicate and ultimately escape. Safety workers should be trained to retrieve an unconscious person and administer first aid, if necessary.
The United States Department of Labor's Occupational Safety & Health Administration (OSHA) maintains a state-by-state and federal list of industry regulations pertaining to confined spaces. For additional information, visit the OSHA website or consult a professional confined space rescue company.
