Dave, EN 60204-1 is really only any use as a means of addressing the electrical safety and some of the control system/interface requirements of the Machinery Directive. You certainly can’t use it as the basis for compliance with the requirements for guard design or any of the other EHSRs related to mechanical hazards.
EN 953 covers the points in EHSR 1.4.1 (and more besides) although frankly there is not a great deal in it which is not common sense for someone experienced in machine design. EN 953 is a CEN standard, EN 60950 is an IEC/CENELEC standard and I doubt the people who wrote the two standards speak to each other much, if at all. EN 60950 is really not a good starting place for compliance with the Machinery Directive (even the electrical safety aspects) - if EN 60204-1 won’t tell you what you need to know then for machine designers the second port of call should be EN 60335-1 (which, unlike EN 60950, is listed in the OJ under the Machinery Directive). IEC 60950 is probably the most globalised of all the safety standards and so it has to be acceptable to many territories outside of Europe where there is no local equivalent of the Machinery Directive. I don’t think you can expect to see it listed in the OJ under the Machinery Directive any time soon. One key message that people who come from an electrical apparatus background need to understand when they start dealing with the Machinery Directive is that (with the possible exception of EN ISO 12100, which contains general guidance only) there is no one standard they can use as the basis of compliance with all EHSRs. Being a machinery designer means having familiarity with a range of typically 20 or more standards and applying only the bits which are relevant to your particular application. Happy to discuss/debate further if you have any more questions. Regards Nick. > On 20 Nov 2014, at 19:26, Nyffenegger, Dave <[email protected]> > wrote: > > Folks, > > The Machinery Directive MD 2006/42/EC ANNEX I states > > 1.4. REQUIRED CHARACTERISTICS OF GUARDS AND PROTECTIVE DEVICES > 1.4.1. General requirements > Guards and protective devices must: > - be of robust construction, > - be securely held in place, > - not give rise to any additional hazard, > > We normally use EN 60204-1 Safety of machinery - Electrical equipment of > machines - Part 1: General requirements to certify paper and mail handling > machinery to the Machinery Directive. I don't really see anything in there > that addressed the first and third bullets above. > > The OJ for MD harmonized standards lists EN 953:1997+A1:2009 Safety of > machinery - Guards - General requirements for the design and construction of > fixed and movable guards. I don't currently have a copy. Does anyone know > if this standard addresses the above requirements? Sounds like it should. > Is there any other harmonized standard to apply to meet these requirements? > > EN 60950-1 has requirements for flammability and mechanical strength of > guards well defined but EN 60950-1 itself is not in the list of harmonized > standards for the MD. It is applicable to the Low Voltage Directive and the > MD does state that the requirements of the LVD apply. I'm wondering if the > EN 953 standard has the same requirements in the same level of detail or if > they are at least consistent. > > Thanks > -Dave > > David P. Nyffenegger, PMP, SM-IEEE > Product Development Manager > Nick Williams Director Direct line: +44 1298 873811 Mobile: +44 7702 995135 email: [email protected] ----- Conformance Ltd - Product safety, approvals and CE-marking consultants The Old Methodist Chapel, Great Hucklow, Buxton, SK17 8RG England Tel. +44 1298 873800, Fax. +44 1298 873801, www.conformance.co.uk Registered in England, Company No. 3478646 - ---------------------------------------------------------------- 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]>
