In the medical RA where I got a bit of experience a third factor is used
to classify the avoidability of risk.
Avoidability of the risk.
So the risk number is severity times likelihood times avoidability (why
doesn't MS Word like this word ?)
- To use the comet example, it cannot be avoided, so risk number 5.
- A chain saw approaches rather quick, but can be avoided if vigilant,
so number 4.
- The user gets tired , so stop using the chain saw, can be number 2
- Avoid getting pinched by the elevator door is easy so number 1
The exact numbers makes no difference, as long as the scale is the same
for all your projects.
RA is not to make a difference between, just to prioritize risks.
if too much risk end up with the same number, just extend the scale 1-10
or 1-100 if you need to.
Once you see the list of risks ordered, it is more easy to say:
"Below a risk number of 20 I feel safe, and above we will (try to) fix
them"
The RA process is thus an iterative process, governed by the risk
management process.
The RA process might be need repetition for different users, such as
operators
service agents
domestic animal (yes! LVD)
third age and disabled people
children
Regards,
Ing. Gert Gremmen
Approvals manager
------------------------------------------------------------------------
------------
+ ce marking of electrical/electronic equipment
+ Independent Consultancy Services
+ Compliance Testing and Design for CE marking
according to EC-directives:
- Electro Magnetic Compatibility 2004/108/EC
- Electrical Safety 2006/95/EC
- Medical Devices 93/42/EC
- Radio & Telecommunication Terminal Equipment 99/5/EC
+ Improvement of Product Quality and Reliability testing
+ Education
Web: www.cetest.nl (English)
Phone : +31 10 415 24 26
-------------------------------------------------------------------
This e-mail and any attachments thereto may contain information
that is confidential and/or protected by intellectual property rights
and are intended for the sole use of the recipient(s) named above.
Any use of the information contained herein (including, but not
limited to, total or partial reproduction, communication or
distribution in any form) by persons other than the designated
recipient(s) is prohibited. If you have received this e-mail in error,
please notify the sender either by telephone or by e-mail and
delete the material from any computer.
Thank you for your co-operation.
From: John Woodgate [mailto:jmw1...@btinternet.com]
Sent: Thursday 14 April 2016 12:48
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] SV: [PSES] EU's new approach directive transitions
A scale of 1 to 5 has been considered too coarse, but again 'where to
stop?' 1 to 1000 gives, perhaps, a better impression of the RA of a
comet strike to non-technical managers and politicians, but in these
days of big numbers, there is a case for 1 to 1 million.
From: McCallum, Andy [mailto:andy.mccal...@mottmac.com]
Sent: Thursday, April 14, 2016 10:02 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] SV: [PSES] EU's new approach directive transitions
Rich
If you have not done a risk assessment previously it can be daunting -
where do you draw the line with "what if".
In the UK rail industry an example could be "What happens if the train
is hit by a comet". Answer everyone dies. So what mitigation can you do
- run trains in tunnels deep in rock so the train is protected. That's
not practical so the ALARP principal is introduced (As low as reasonably
practical). Also risk is about the likelihood of an event - so a comet
strike chances of happening are so low that it can be ignored.
Your RA could be enormous if you tried to include every risk that was
possible (rumour is someone did consider a comet strike but I have not
seen it!).
So product knowledge and common sense need to be applied. Consider the
risks for your product assign them a risk rating ( say 1 - 5 where 1 is
no risk and 5 is risk of death) and then assign a likelihood (1 is
incredibly unlikely and 5 is a daily occurrence). Multiply 1 by the
other and you have a risk score somewhere between 1 and 25. So a comet
strike is likely to a consequence of death (score 5) but is incredibly
unlikely (Score 1) total risk score 5. Any reasonable mitigation? No
that's the best you will get move on the next risk.
Hope that helps
Andy
From: Gary Swale [mailto:gary.sw...@ditchwitch.com]
Sent: 14 April 2016 00:48
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] SV: [PSES] EU's new approach directive transitions
>>I don't have experience in RA, so I guess I can't do it.<<
No, not experience in RA, experience and knowledge about the product.
The RA is all about presenting "what if" scenarios to product experts
and the experts then work to lower the risk through design, safeguards,
and information.
________________________________________
From: Richard Nute [ri...@ieee.org]
Sent: Wednesday, April 13, 2016 6:19 PM
To: Gary Swale; EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] SV: [PSES] EU's new approach directive transitions
"... Risk Assessment is a qualitative (estimate based on experience)
venture."
I don't have experience in RA, so I guess I can't do it. I guess I have
to hire someone who has RA experience.
This is very much like the certification house manager who told me that
product safety is an art that takes many years (and products) of
experience to master. As a product manufacturer (compared to a
certification house), my experience is limited and I would not likely
master the art.
Rich
This email and any files transmitted with it from The Charles Machine
Works, Inc. are confidential and intended solely for the use of the
individual or entity to which they are addressed. If you have received
this email in error please notify the sender. Our company accepts no
liability for the contents of this email, or for the consequences of any
actions taken on the basis of the information provided, unless that
information is subsequently confirmed in writing. Please note that any
views or opinions presented in this email are solely those of the author
and do not necessarily represent those of the company. Finally, the
recipient should check this email and any attachments for the presence
of viruses. The company accepts no liability for any damage caused by
any virus transmitted by this email.
-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list. To post a message to the list, send your
e-mail to <emc-p...@ieee.org>
All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html
Attachments are not permitted but the IEEE PSES Online Communities site
at http://product-compliance.oc.ieee.org/ can be used for graphics (in
well-used formats), large files, etc.
Website: http://www.ieee-pses.org/
Instructions: http://www.ieee-pses.org/list.html (including how to
unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org>
Mike Cantwell <mcantw...@ieee.org>
For policy questions, send mail to:
Jim Bacher <j.bac...@ieee.org>
David Heald <dhe...@gmail.com>
-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list. To post a message to the list, send your
e-mail to <emc-p...@ieee.org>
All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html
Attachments are not permitted but the IEEE PSES Online Communities site
at http://product-compliance.oc.ieee.org/ can be used for graphics (in
well-used formats), large files, etc.
Website: http://www.ieee-pses.org/
Instructions: http://www.ieee-pses.org/list.html (including how to
unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org>
Mike Cantwell <mcantw...@ieee.org>
For policy questions, send mail to:
Jim Bacher <j.bac...@ieee.org>
David Heald <dhe...@gmail.com>
-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list. To post a message to the list, send your
e-mail to <emc-p...@ieee.org>
All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html
Attachments are not permitted but the IEEE PSES Online Communities site
at http://product-compliance.oc.ieee.org/ can be used for graphics (in
well-used formats), large files, etc.
Website: http://www.ieee-pses.org/
Instructions: http://www.ieee-pses.org/list.html (including how to
unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org>
Mike Cantwell <mcantw...@ieee.org>
For policy questions, send mail to:
Jim Bacher <j.bac...@ieee.org>
David Heald <dhe...@gmail.com>
-
----------------------------------------------------------------
This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
<emc-p...@ieee.org>
All emc-pstc postings are archived and searchable on the web at:
http://www.ieee-pses.org/emc-pstc.html
Attachments are not permitted but the IEEE PSES Online Communities site at
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used
formats), large files, etc.
Website: http://www.ieee-pses.org/
Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html
For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org>
Mike Cantwell <mcantw...@ieee.org>
For policy questions, send mail to:
Jim Bacher: <j.bac...@ieee.org>
David Heald: <dhe...@gmail.com>
