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HSE_Steve  
#1 Posted : 13 August 2014 15:04:15(UTC)
Rank: Forum user
HSE_Steve

Afternoon All,

wonder if I could pick your collective brains for a quick minute...

I'm currently writing the control of vibration documentation for my company and wondered about the following point.

Our engineers use vibrating tools (grinders, polishers etc) and because they all do a full range of activities including assembly etc then 99% of the time they will be nowhere near the ELV of 5m/s^2. However, there could be the odd day (and it really would be occasional - talking once a year if that) where they may exceed it i.e. for some reason one of them had to do a full day of polishing.

Is this allowed in the regs? With noise, I know you can use a weekly average if its more representative but I can't find anything similar in the vibration regs.

Comments, thoughts appreciated as always.

Steve.
teh_boy  
#2 Posted : 13 August 2014 15:20:13(UTC)
Rank: Super forum user
teh_boy

http://www.legislation.g...5/1093/regulation/6/made

This answers your question - if in doubt read the regs :)

“exposure limit value” means the level of daily exposure set out in regulation 4 for any worker which must not be exceeded, save as set out in regulation 6(5);
JohnW  
#3 Posted : 13 August 2014 15:43:30(UTC)
Rank: Super forum user
JohnW

Steve, I suggest reading through the HSE guidance before trying to read the regulation.

On the HSE website look for guidance document indg175.pdf

It will explain that the ELV 5 m/s2 is the maximum amount of vibration an employee may be exposed to on ANY SINGLE DAY.

And it will also explain that there is an Exposure Action Value (EAV) which is a daily amount of vibration exposure above which employers are required to take action to control vibration exposure. For hand-arm vibration the EAV is a daily exposure of 2.5 m/s2.

So in effect your employee can exceed the EAV occasionally but should never exceed the ELV.

If the employee is exposed to vibration daily between the EAV and ELV then the employer should take some action to avoid this e.g. new tools, new processes, share out the jobs.

There is a HSE calculation tool which simplifies HAVS assessments with a points system. Use that so that employees (and the employer!) can easily understand the results of assessments.

John
teh_boy  
#4 Posted : 13 August 2014 15:47:59(UTC)
Rank: Super forum user
teh_boy

HSE_Steve wrote:
Afternoon All,

Is this allowed in the regs? With noise, I know you can use a weekly average if its more representative but I can't find anything similar in the vibration regs.


Steve.


@JohnW - although helpful that doesn't answer the question - the answer is YES

(5) Paragraph (4) shall not apply where the exposure of an employee to vibration is usually below the exposure action value but varies markedly from time to time and may occasionally exceed the exposure limit value, provided that–

(a)any exposure to vibration averaged over one week is less than the exposure limit value;
(b)there is evidence to show that the risk from the actual pattern of exposure is less than the corresponding risk from constant exposure at the exposure limit value;
(c)risk is reduced to as low a level as is reasonably practicable, taking into account the special circumstances; and
(d)the employees concerned are subject to increased health surveillance, where such surveillance is appropriate within the meaning of regulation 7(2),
HSE_Steve  
#5 Posted : 13 August 2014 16:07:20(UTC)
Rank: Forum user
HSE_Steve

Thanks for the quick replies, superb yet again :-)

@JohnW - thanks John, i'm quite happy we have all that covered, we do HAVS assessment at the same time as audiometry, we've had trigger time measured, look to purchase lower magnitude equipment and also implement working methods such as holding equipment in specially designed vices. We rarely exceed the EAV and very rarely (if ever) exceed the ELV on a given day - I was just checking that if we did on one day would we be going against the regs, turns out we wouldn't. Many thanks for the input though.

@Teh_Boy, thanks for that, exactly what I needed. I did think it must be in there somewhere, just couldn't see where - I promise I've read the regs and guidance ;-)

thanks everyone.
JohnW  
#6 Posted : 13 August 2014 16:55:04(UTC)
Rank: Super forum user
JohnW

Steve and the_boy,

From your first posting Steve I wasn't sure what knowledge you had, so I was suggesting a gentle approach to the subject and for you to work out your answer. As you do have a good understanding then the 'exceptions' that teh_boy quoted should help you in your decisions.

John
Canopener  
#7 Posted : 13 August 2014 18:27:46(UTC)
Rank: Super forum user
Canopener

teh_boy - I am doing some work on this as well and thank you for your post at #4 - very helpful.
teh_boy  
#8 Posted : 13 August 2014 20:47:34(UTC)
Rank: Super forum user
teh_boy

No worries guys - glad to be of help, it's rare I get time on the forums nowadays...
I am a bit confused however, that one of my posts simply hasn't resulted in loads of arguments :)
billstrak  
#9 Posted : 20 August 2014 05:14:22(UTC)
Rank: Forum user
billstrak

Just throwing something out there to mull over.........Since leaving UK some 8 years ago to ply my trade overseas in generally warmer climates I have yet to see an issue or workers comp claims relating to HAVS.

Currently working in Oz and have been for the last three years and have to report that Oz legislation does not have anything in place for the management of HAVS as there are so few instances of related illness and reporting.

Conclusion, albeit unsubstantiated is environmental conditions in the form of cold wet weather has a very large part to play in the realisation of this syndrome.

Canopener  
#10 Posted : 20 August 2014 10:51:42(UTC)
Rank: Super forum user
Canopener

I think that the HSE do recognise that. Somewhere in their various 'guidance' etc they do say that while there is no effective PPE against HAVS (in so much as anti-vibration gloves) gloves that keep the hands warm in winter are beneficial at helping to maintain circulation and therefore help mitigate the onset of the vascular component of HAVS.
descarte8  
#11 Posted : 20 August 2014 11:18:22(UTC)
Rank: Super forum user
descarte8

https://www.jstage.jst.g...5/54_12-0089-RA/_article

Its only 1 paper but interesting conclusion
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