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Work In Confined Spaces

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Presentation on theme: "Work In Confined Spaces"— Presentation transcript:

1 Work In Confined Spaces

2 What is a Confined Space?
Any space of an enclosed nature where there is a risk of death or serious injury from a specific risk Examples: Storage tanks, silos, enclosed drains, sewers, chambers, vats, ductwork, unventilated rooms

3 Hazards Lack of oxygen Poisonous gas, fume or vapour
Ingress of liquids or free-flowing solids Fire and explosion from flammable vapours, excess oxygen etc. Residues which give off gas, fume or vapour Dust Hot conditions

4 Control Measures

5 Avoid Entering Confined Spaces
Modify confined space itself so that entry is not necessary Have work done from outside

6 Safe System of Work If entry cannot be avoided, SSoW will need to be developed from risk assessment Properly train and instruct everyone in SSoW

7 Supervision Supervisors should be given responsibility to:
Ensure that necessary precautions are taken; Check safety at each stage Possibly remain present while work is carried out

8 Suitable Employees Trained and competent Physically suitable
Fit to wear breathing apparatus Not susceptible to claustrophobia Medical advice may be necessary

9 Isolation Mechanical & electrical if necessary
Physical isolation of pipework Physical checks to ensure safety Sign isolation points

10 Ventilation Increase amount of openings Provide mechanical ventilation
Never use petrol fuelled equipment in confined spaces

11 Air Testing Check for presence of toxic and flammable vapours
Check for oxygen levels Carried out by competent person using suitable gas detector which is correctly calibrated Continuous monitoring may be necessary

12 Tools and lighting Non-sparking tools and specially protected lighting where flammable or explosive atmospheres are present RCDs and low voltage equipment may be necessary to prevent electric shocks

13 Breathing Apparatus Essential if air is not fit to breathe due to gas, fume or vapour, or lack of oxygen Never try to sweeten air with oxygen as this increases risk of fire or explosion

14 Emergency Arrangements
Contact with emergency services Practice drills Rescue equipment e.g. Lifelines & harnesses Train and instruct all staff in emergency procedures Top man to raise alarm in case of emergency Trained first aiders on hand Fire fighting equipment nearby Rescuers need to be fit and capable of carrying out rescue

15 Communication Adequate communication system to allow people inside the space to communicate with people outside the space if necessary Adequate communication system to allow people outside the space to summon help immediately if necessary

16 Permit-to-Work Systems
Written system Ensures all elements of safe system are in place Clearly identifies responsibilities Should include contractors Everyone will need to be trained and instructed

17 Other Controls Cleaning and purging Steam cleaning

18 Confined Spaces Regulations 1997
Avoid entry to confined spaces If entry to a confined space is unavoidable, follow a safe system of work Put in place adequate emergency arrangements before the work starts “Due diligence” defence

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