This message has been converted via the evaluation version of Transend Migrator. Use beyond the trial period specified in your Software Evaluation Agreement is prohibited. Please contact Transend Corporation at (650) 324-5370 or [email protected] to obtain a license suitable for use in a production environment. Thank you. <br> ---------------------------------------------------------------------<br> Hello Joel, IEC/EN 60335-1 has a diagram (figure 10) indicating ‘example’ parts of an earthing terminal. It distinguishes parts providing earthing continuity from parts providing or transmitting contact pressure. Generally most product safety standards (including 60335) do not specify ‘explicit’ construction requirements for protective earthing connections only that certain requirements shall be met. An issue that can sometimes be overlooked is that of not double fixing when crimping a connector onto an earth wire – ideally the conductor AND the insulation should be fixed. I have never seen this explicitly stated but it goes with the ‘spirit’ of most product safety standards and good engineering practice. I will see if I can extract the diagram. Best regards, ___________________________________________ Steve Richardson Blackwood Compliance Laboratories Unit 8 Woodfieldside Business Park Pontllanfraith Blackwood NP12 2DG United Kingdom Tel: +44(0)1495 229219 Fax: +44(0)1495 228331 www.blackwood-labs.co.uk <http://www.blackwood-labs.co.uk/> Limited places available *** EMC seminar - Millennium Stadium Cardiff *** <http://www.blackwood-labs.co.uk/trainingcourses> Click here or visit <http://www.blackwood-labs.co.uk/trainingcourses> www.blackwood-labs.co.uk/trainingcourses
From: [email protected] [mailto:[email protected]] On Behalf Of Joel Sandberg Sent: 17 March 2008 02:37 To: [email protected] Subject: Protective Earthing Terminal Construction Requirements To Members of the Product Safety Group; I am trying to find the construction requirements, and the standards that set these requirements, for a protective earth(ing) terminal. Many of us have learned that there needs to be locking washers and nuts between each ring lug. But where is this actually called out and required? I am trying to show the engineering department were I work which parts of this "good practice" are actually requirements of the requirements we will be claiming to meet. I have found a diagram at www.phihong/html/grounding.html (Phihong.com) that shows reasonable grounding technique. But this web site does not site any standard as a basis for the technique. I have searched 60601-1:1988 and 60950:95 looking for requirements and a diagram. I have found resistance requirements, 0.1 ohm max in 60601-1, section 18 f), but I can not find construction explicit requirements. Does anyone know if any standard includes explicit construction requirements for a protective earth terminal and for connections to a PE terminal? Thank you. Joel Sandberg Lake Worth, FL _____ Looking for last minute shopping deals? Find <http://us.rd.yahoo.com/evt=51734/*http /tools.search.yahoo.com/newsearch/category.php?category=shopping> them fast with Yahoo! Search. - ----------------- ---------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
