Friday, 4 May 2012

SAFETY IN CONFINED SPACE



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.
All three criteria have to be met before a space is defined as a confined space.
confined space
Hazards in confined spaces can be categorized as either physical hazards or atmospheric hazards.

Physical hazards 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
Dangerous atmospheres have killed those working in confined spaces as well as those attempting rescue. Atmospheric hazards include:
  • 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.

1 comment:

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