A confined space is defined as a place
- that is partially or fully enclosed
- that is not both designed and constructed for continuous human occupancy, and
- where atmospheric hazards may occur because of its construction, location, or contents, or because of work that is done in it.
often present a greater danger inside an enclosed space than they do outside. Examples include:
- Noise and vibration
- Temperature extremes
- Cramped work spaces
- Poor access or exit
- Rotating or moving equipment
- Electrical hazards
- Uncontrolled movement of liquids and solids
- Reactive or corrosive residues
- Slick or wet surfaces
- Lighting
- flammable, combustible, or explosive atmosphere
- toxic atmosphere
- oxygen-deficient atmosphere
- oxygen-enriched atmosphere
Hazard Assessment
Before each time that a worker enters a confined space, a competent worker must perform a written hazard assessment. The hazard assessment must take into account- the hazards that may exist in the confined space
- the hazards that may develop while work is performed inside the confined space
- general safety hazards in the confined space.
Confined Space Program
Before letting a worker enter a confined space, the employer must develop a written confined space program meeting the requirements of the Construction Regulation . The employer must maintain the program.The confined space program can apply to one or more confined spaces. Program elements must include
- a method of recognizing each confined space
- a method for assessing the hazards to which workers may be exposed
- a method for developing plans for controlling the hazards
- a method for training workers
- an entry permit system setting out measures and procedures to be followed when working in a confined space.
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