Showing posts with label Confined Space Hazards. Show all posts
Showing posts with label Confined Space Hazards. Show all posts

Friday, May 11, 2018

Confined Space, Confined Space Hazards And Control Measures

CONFINED SPACE ENTRY:

In order for a work area to be defined as a confined space it must meet all three of the following criteria:

1. Limited Openings for Entry and Exit. 

A confined space may be difficult to enter and perform repair work, or general maintenance. If something goes wrong while you are inside a confined space, escape/rescue may be difficult. Just because a work area has more than one way of escape, does not necessarily mean it is not a confined space. If the space has limited ways to get in and out, it could be a confined space. An open top tank would have limited openings for entry and exit.

2. The Space is not intended for Continuous Human Occupancy. 

This means that the space was designed to hold something other than people. Examples include tanks and manholes.

3. The Space is Large Enough for You to Enter and Conduct Work. 

If you cannot fit your body into the space you cannot become trapped inside. 

CONFINED SPACE HAZARDS:

Toxic Gases Hazards (H2S, Cl2, NH3 & CO Gases)

Flammable Gases Hazards (LPG, DA, Hydrogen)

Oxygen Deficiency Hazard

Oxygen Enrichment

Explosion Hazard

Fire Hazard

Excessive Heat Hazard

Physical Hazards:

Noise, heat / cold, radiation, vibration, electrical and Illumination hazard.

Biological Hazards:

Viruses, Bacteria, Sludge, Fungi or molds.

CONFINED SPACE ENTRY CONTROL MEASURES:

The key elements to be considered when drawing up a safe system of work are:

Competence, training, supervision and suitability

Permit-to-work procedure

Gas purging and ventilation

Dangerous residues

Testing and monitoring of the atmosphere

Mechanical, electrical and process isolation

Respiratory protective equipment

Other personal protective equipment

Safe use of work equipment

Communications

Entry & Exit

Flammable or explosive atmospheres

Combustible Materials