Some of the product specific standards include requirements for protection against siesmic effects, although I don’t know of any which are harmonised under the Machinery Directive. Probably the one closest is: BS ISO 11031. "Cranes. Design principles for seismic load” which is still a draft (12/30269745 DC). Purchaseable from BSI for GBP20.
I’ve just had a quick look at it, and it contains quite a lot of maths, but it also gives risk factors for different territories worldwide. I’d say it’s probably a good start for answering the question you asked (and since it’s a draft, it’s cheap!). I’m not sure whether or not I agree with Lauren that the MD does not require you to consider siesmic effects. What I do know is that it’s wrong to think that just because the risk is very low in places like the UK then you never need to do anything about earthquake protection.* If you are designing serious infrastructure (rail, power stations etc) then earthquake risk definitely needs to be on your radar. Nick. *note: not that I’m accusing you of this! > On 24 Nov 2014, at 21:37, Pete Perkins > <[email protected]> wrote: > > ok group, > > I'm dealing with a large machine which, by design, seems top-heavy. > The issue of stability in an active seismic environment has been raised. > Are there any specific requirements or guidance in Euro standards pertaining > to seismic stability? > > :>) br, Pete > > Peter E Perkins, PE > Principal Product Safety Engineer > PO Box 23427 > Tigard, ORe 97281-3427 > > 503/452-1201 fone/fax > [email protected] > - ---------------------------------------------------------------- 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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
