Confined spaces

1. KEEP THE CELL PHONE
IN SILENT / SWITCH
OFF MODE

2. TRAINING ON CONFINED SPACE

3. WHAT IS CONFINED SPACE

4. Work place which is of the following nature , shall
be considered space : -
Which is large enough and so configured that an
employee can enter bodily and perform work .
Which is limited or restricted means of entry or
exit .

5. Example of Confined Space

6. considered as confined space :-
Manhole Trenches
Boliers Tunnels
Furnaces Ducts
Sewers Bins
Silos Pits
Tank Pipes
Hoppers

7. Hazards in Confined Space
Oxygen Deficiency
Flammable like – Methane , Hydrogen , Acetylene ,
Propane , Gasoline fumes etc.
Toxic like – Carbon monoxide, Hydrogen Sulphide ,
Welding fumes .
Electricity
Mechanicals Hazards like – Mixers , Crushers etc.

8. Confined Space Entry Procedure
Isolate the confined space from all hazards
Ventilate the space
Conduct a Tool Box meet
Fill entry permit form
Test the atmosphere
Enter the space and proceed with work
Close the permit when job is completed

9. Confined Space Entry
Requirement

10. Isolate the confined space from all hazards :-
Close valves – Double block , Blank Flange
Empty the space – De-pressurize the , vent. , Drain
Lock out / Tag out Equipments – Electrical sources ,
rotating / Hazardous materials .
Clean residues from the confined space .
Ventilate the space

11. Use fan or air movers to ventilate the confined
space . Make sure that the air supply is not
contaminated .
If welding / Gas cutting shall be carried out in side
the confined space , ventilate at the space.
Use air supplied respirators or self contained
breathing apparatus , if mechanical ventilation can
not be provided or it is not effective .

12. Conduct a Tool Box meet
Make sure that all the Crew members
(Attendants , entrants , entry supervisor , and all
workmen) attend the meeting .
Review hazards of entry and work
Review Requirement of PPE .
Review Procedure for Emergency rescue .

13. Fill entry permit form
Fill permit Form Completely .
No Entry Shall be allowed without a valid permit
.
Permits are Valid for one days and renew the
permit , if required .

14. Test the atmosphere
Test the atmosphere using calibrated tester prior to
the human entry inside the confined space
Stop the ventilation at least 15 minutes before the
test to allow time for the confined space atmosphere
to normalize . Records the results of the test on the
permit register .
Check the oxygen content . it should be at least
19.5% and less than 21 % .

16. Enter the space and proceed with work
Check for in-flammables . it should be less than 10%
of the lower explosive limit of the flammable material
contained in the confined space .
Check the toxic gases .
An attendant shall be posted near the entrance for
the duration of the work . He shall be in constant
communication with the entrants while the job is in
progress .
All entrants shall sign the sign in log when entering
the space and sign out when exiting .

17. The attendant shall maintain the permit and
sign in log for duration of the work .
Hot work in confined space can cause heat
stress concerns appropriate rest regimes shall be
followed .
Permit shall be posted at the entrance of the
confined space and at a location that is readily
visible by personnel entering the space .

18. Close the permit when job is completed
Remove all personnel tools and equipments .
Remove the debris and residues .
Sign off the entry register .
Close the confined space .
Close the permit and return permit to Control
room .

19. THANKS