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A confined space is a space with limited entry and egress and not suitable for human inhabitants. Alternative names for a confined space are enclosed space and dangerous space. [1] An example is the interior of a storage tank, occasionally entered by maintenance workers but not intended for human occupancy.
Confined space rescue is a subset of technical rescue operations that involves the rescue and recovery of victims trapped in a confined space or in a place only accessible through confined spaces, such as underground vaults, storage silos, storage tanks, or sewers. A warning label on a storage tank, indicating that it is a confined space.
The use of lockout–tagout is not currently enforced in the UK but has been proven to be best practice for multiple UK industries. BS7671:2008 is a regulation in the UK that ensures that all wiring and electrical installations completed within any building is of the highest standard. It also states that "Every employer shall ensure that where ...
3D zone control: The strategy of 3D zone control intended to improve the safety of firefighters operating inside a burning structure.It attempts to safeguard the immediate locality of any space occupied by firefighters in resorting to various defensive actions that (a) confine the fire; (b) remove combustion products safely and effectively; or (c) mitigate dangers in the hot-gas layers.
A self-contained breathing apparatus (SCBA) is a respirator worn to provide an autonomous supply of breathable gas in an atmosphere that is immediately dangerous to life or health from a gas cylinder. [1]
In probability theory, reflected Brownian motion (or regulated Brownian motion, [1] [2] both with the acronym RBM) is a Wiener process in a space with reflecting boundaries. [3] In the physical literature, this process describes diffusion in a confined space and it is often called confined Brownian motion. For example it can describe the motion ...
Any reading between 20% LEL and 80% LEL in a confined space. Any reading on a pipeline operating at 30 percent specified minimum yield strength (SMYS) or greater, in a class 3 or 4 location, [clarification needed] which does not qualify as a Grade 1 leak. Any reading of 80% LEL, or greater, in gas associated sub-structures.
Air changes per hour, abbreviated ACPH or ACH, or air change rate is the number of times that the total air volume in a room or space is completely removed and replaced in an hour. If the air in the space is either uniform or perfectly mixed, air changes per hour is a measure of how many times the air within a defined space is replaced each hour.