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Posted By santhosh vasudev
I have read the requirements of OSHA non-permit required confined spaces and is a bit confused. Is it required to have ventilation running all the time in a non permit required confined space. Also in a confined space like a ballast tank in a barge, what all control measures can one take considering the risk of collapse of a person. Is it required that persons entering such spaces wear safety harnesses attached to lifelines/tripod retrievel systems? I am a bit inexperienced as well. I need advice please.
Is there any standard size for manhole openings?
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Posted By Kevin Forbes
With reference to procedures for entry into tanks here are some things you need to consider most of them are standard in an offshore environment
What was previous contents of the tank? residual fluids? gasses? possible H2S from stale water in bottom of tank.
What isolations need to be put in place? electrical? mechanical? process? and is there a suitable lock out system? has equipment been drained and depressurised?
Is there an emergency rescue plan in place?
Gas testing prior to work and during by competent person
Escape sets for personnel in tank and rescue sets on standby outside tank in case an emergency arises - Personnel may need to be face fit tested for BA and ascape sets.
Standby man should be appointed and have suitable means of rasing the alarm in an emergency and must never enter confined space
Work party will need suitable lighting it may need to be air powered depending on atmosphere and aditional ventilation should be considered.
Radios or some other means of communication will be needed with work party and standby man and work party should be attached to a rescue line of some sort
Liase with other work groups in area. use barriers and signs to make people aware of task and communicate rescue plan and procedures via toolbox talks.
where the risk assessment proves nessesary we provide a rescusitator outside of tank for extreme emergencys this would be used by the medic and saves him carrying it with him
Also a log of entry might be required along with any additional PPE protective suits, goggles special gloves etc.
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Posted By Frank Hallett
Hi Santhosh
You identify that you have been considering the OSHA requirements for Confined Spaces working. These are specific to the USA - and also have specific requirements for different types of confined space!
The OSHA requirements are not relevant in the UK as the Confined Spaces Regs are in place; other EU countries will have their own versions and you should check to ensure that you're looking at the correct legislation for whichever country that you're working in.
If you get really stuck feel able to contact me direct.
Frank Hallett
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Posted By garyh
I suggest reading the excellent HSE Books publication "Safe work in confined spaces. Confined Spaces Regulations 1997.Approved Code of Practice, Regulations and guidance L101 HSE Books 1997 ISBN 0 7176 1405"
If you follow this you won't go wrong in terms managing "entries" safely.
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Posted By Helen - Confined Space Assessor As an earlier post states, in the UK, L101 (Confined Space Regulations, Approved Code of Practice and Guidance) applies. Please call me if you need any help applying this to your situation. Everything is based upon your initial risk assessment and any elimination or control measures will stem from this. Helen 01925 244144 hcollins@csts.co.uk
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