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Advice needed on emergency rescue of persons dangling on harness
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Posted By Taff2
In line with the WAH regs - we provide harnesses for persons working on lorry-tankers.
The system works well & we've done most of what we woudl deem necessary - but we have one remaining issue:
At night, when these guys may be working alone, there is a risk of suspension trauma if the harness does its job. As they are lone workers - but with security cover available 24x7, we'd like to get an alarm system established that indicates when the harness / restrainer activated / under tension. Has anyone seen / heard of such a device?
Any other comments??
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Posted By Renny Thomson
Hi Taff,
I used to work in the haulage industry and spent a few years operating powder tankers. As per the WAH Regs, PPE should be seen as a last resort.
A suitable workplace should be provided. This could be achieved by a work platform on the top of the tanker with a suitable hand-rail. This could be used with a harness to limit the driver from moving across to the other unguarded side if the platform is only on one side of the tank top.
If the operation is at a loading point where there is limited headroom and it is not possible to deploy a handrail on the vehicle, suitable access could be from a fixed platform (with guarding). If in the open, where do your drivers attach the harness from? A movement limiting harness and short lanyard should be used in preference to a fall arrest system.
Another system used at a flour mill that I used to load from had an overhead travelling inertia reel system that the driver clipped on to. If there was a fall, it would slowly lower the driver to ground level. This was open to abuse though as it was a quicker and easier method of returning to ground, than the proper method of returning to the loading platform and descending via the stairs.
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Rank: Guest
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Posted By Renny Thomson
Hi Taff,
I used to work in the haulage industry and spent a few years operating powder tankers. As per the WAH Regs, PPE should be seen as a last resort.
A suitable workplace should be provided. This could be achieved by a work platform on the top of the tanker with a suitable hand-rail. This could be used with a harness to limit the driver from moving across to the other unguarded side if the platform is only on one side of the tank top.
If the operation is at a loading point where there is limited headroom and it is not possible to deploy a handrail on the vehicle, suitable access could be from a fixed platform (with guarding). If in the open, where do your drivers attach the harness from? A movement limiting harness and short lanyard should be used in preference to a fall arrest system.
Another system used at a flour mill that I used to load from had an overhead travelling inertia reel system that the driver clipped on to. If there was a fall, it would slowly lower the driver to ground level. This was open to abuse though as it was a quicker and easier method of returning to ground, than the proper method of returning to the loading platform and descending via the stairs.
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Rank: Guest
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Posted By Renny Thomson
Hi Taff,
I used to work in the haulage industry and spent a few years operating powder tankers. As per the WAH Regs, PPE should be seen as a last resort.
A suitable workplace should be provided. This could be achieved by a work platform on the top of the tanker with a suitable hand-rail. This could be used with a harness to limit the driver from moving across to the other unguarded side if the platform is only on one side of the tank top.
If the operation is at a loading point where there is limited headroom and it is not possible to deploy a handrail on the vehicle, suitable access could be from a fixed platform (with guarding). If in the open, where do your drivers attach the harness from? A movement limiting harness and short lanyard should be used in preference to a fall arrest system.
Another system used at a flour mill that I used to load from had an overhead travelling inertia reel system that the driver clipped on to. If there was a fall, it would slowly lower the driver to ground level. This was open to abuse though as it was a quicker and easier method of returning to ground, than the proper method of returning to the loading platform and descending via the stairs.
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Rank: Guest
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Posted By Taff2
Thanks Renny
Ref: "Another system used at a flour mill that I used to load from had an overhead travelling inertia reel system that the driver clipped on to. If there was a fall, it would slowly lower the driver to ground level".
Where can you get these? - do they operate auomatically? - even if the operator ahs passed out (knocked head)
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Posted By Robert K Lewis
Renny
I think your system, only worked with slow falls or was badly set up, as most inerta reels lock out at sudden loading. However you are absolutely right about using restraint harnesses rather than fall protection. Many harnesses only fully deploy after approx 4 metre drop, at which point most people have hit the groundfrom the average tanker, althogh not all.
Taff
You do appear to have opted for harnesses in a situation where they are unsuitable - if you are using them you must have a rescue plan implemented BEFORE the task is commenced. This means equipment and practice and a risk assessment. I do not think an automatic remote alarm is acceptable, think of Buncefield and the problems of remote signalling failures for tank levels. I would go for either a walk deck affixed to the tankers or one on the offloading gantry.
Bob
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Posted By Taff2
Robert,
I inherited the issue - new to position / company - not new to H&S. HSE have been involved and they were the ones that raised the rescue plan. Due to size of loading bays - x4 tankers / bay - each tanker is different and dimesions are at the whim of the customer. It appears that harnesses/PPE is the only practcal solution. HSE (like you) raisedthe issue of a rescue plan - so we ahve some equipment, video of a practice session and a documented risk assessment. HSE propsed the automatic remote alarm as being acceptable - but this adds another link to the chain (weakest point).
I wish we ahd the space for either a walk deck affixed to the tankers or one on the offloading gantry.
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Posted By MT
I suspect it wasn't an inertia reel that was being used, but an auto belay, which is a device which will lower someone slowly to the ground. They are commonly used in climbing, often on climbing walls where novices are learning. http://www.modneyconcepts.co.uk/autobelay.html
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Posted By Frank Macleod
In the event that you or anyone else has to wear safety harnesses for WAH...are you aware of the fact that you can now purchase straps for attching to the harness, which whe deployed can be used for taking the weight from your feet (almost like stirrups)thus preventing the effects of suspension trauma. Granted the individual needs to be conscious at the time. Would be well worth investigating further for all those interested.
Regards
Frank
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Posted By Robert K Lewis
Taff
Typical HSE - question something in one place and recommend it in another.
I am surprised at the lack of walkway on the tanker tops themselves as this has been a longtime common feature, even back in the 70s. The recent change, which is relatively easy as a retro-fit, is the fold down handrails for use during offloading. I think you need to challenge the delivery companies on their risk assessments for their operatives and/or the use of their equipment in the provision of a safe place of work. I would have thought you would have enough clout with the delivery companies to make them concerned at the prospect of being barred from site that they would respond positively without the stick actually striking a blow. Without their assistance I cannot see any option but two persons for offloading. Think of the cost of maintaining a remote automatic system and when it fails the HSE will be quite ready to prosecute for lack of a safe system.
Bob
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Posted By David Bruce
Might not be exactly what you are looking but worth phoning to see if suitable. You can buy man down systems that are also fitted with panic alarms. These work on the basis that they are triggered when no movement occurs in certain positions, they can also be used if in difficulty. Of course all these systems are based on the fact that you can have someone practiced in the rescue procedure with suitable equipment there in a short time. You can't hang very long on a harness before severe damage occurs! Your rescue plan should take account of the maximum time they could be stranded before rescue!
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Posted By Richard Hinckley
Can I suggest that you take a look at www.rescue-genie.com for a very suitable remote rescue device for the retrieval of workers in suspension.
We recently installed a safety system in an aircraft hangar which used an inertia reel fall arrest block that had an in built controlled descent, maybe this could be a solution.
Please email me richard@totalaccess.co.uk if you would like any further information.
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Posted By Ms B
I would advise, that no one should ever be permitted to work alone whilst wearing a harness. The 15 minute guide is just that, suspension trauma can be unpredictable, should remote systems fail, it's almost impossible to self rescue in a harness. Perhaps a good read of the manufacturers instructions as well as advice from manufacturers would help.
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Posted By Granville Jenkins
At most you would have 15 minutes but this is an average time some people may have inherent health problems that put them in imminent danger in such situations, also what happens if the person goes into cardiac arrest - is anyone going to get to them in time to be of any use!! As this cleaning is a regular occurrence you should give serious consideration to using a small mobile elevated work platform (MEWP), which will also mean getting your guys trained/certificated in its use. You should not use ladders as there is no way of maintaining 3 points of contact when working at height.
Lone working is a separate issue.
Regards
Granville
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Advice needed on emergency rescue of persons dangling on harness
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