James – Thank you! I see they do a Stainless Steel M3 x 6mm long plain stud so I will pass that onto our DO and see what they think: electrically it’s ideal for a crocodile clip and pointed probe for a four terminal resistance test.
With best regards, Mark From: James Pawson (U3C) <ja...@unit3compliance.co.uk> Sent: 03 September 2018 10:21 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] Re: [PSES] Sometimes the simple aspects aren't Hi Mark, What about stud welding? https://www.taylor-studwelding.com/about-stud-welding#problems HTH James From: Mark Hone <mark.h...@tpgroup.uk.com<mailto:mark.h...@tpgroup.uk.com>> Sent: 03 September 2018 10:17 To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: [PSES] Sometimes the simple aspects aren't Dear List Members, I have been asked for a simple solution to a simple challenge. But I can’t think of anything better than what we do at present. Background: the equipment will be installed in a slightly damp environment and will be expected to have a life of much more than twenty years, so keeping rust at bay is a challenge. The problem: earth bond test points are needed on a metal frame, made up of multiple robustly painted steel sections, a test point on each section. In the past, 6 mm diameter patches were zinc plated and masked when the sections were painted – but probing on them over the years scratched the plating letting corrosion grab hold (and even when new they didn’t look nice). More recently, blind rivet nuts are being used in the hollow section frame, these looked quite good as well as providing robust test points (heads masked during painting). They seem to be reliable test points that don’t cause a rust problem. But on a new design, C-section frame is to be used in places, which means the back of the blind rivet nuts will be exposed to view, which is considered unsightly. My request for help: does anyone know of a simple-something that can be used on/in/through C-section steel prior to painting, that can subsequently be used as an earth bond (at 10 A DC) test point, that will last for decades, and look good? Ever hopeful, Mark Mark Hone Electrical Manager TPG Maritime Ltd [cid:image002.png@01D44373.33558650]Email: mark.h...@tpgroup.uk.com<mailto:mark.h...@tpgroup.uk.com> Tel: 023 9262 9239 Mob: 07919 047775 Web: www.tpgroup.uk.com<http://www.tpgroup.uk.com/> Dolphin House, Williams Road, Portsmouth, Hampshire, PO3 5FP, UK Disclaimer TP Group plc, A2/1064 Cody Technology Park, Farnborough, Hampshire, GU14 0LX, United Kingdom. Registered No. 3152034 This email and any attached files are private and confidential and for the use of the addressee(s) only. If you are not the intended recipient, please notify the sender immediately and delete the material from any computer. 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Registered No. 3152034 This email and any attached files are private and confidential and for the use of the addressee(s) only. If you are not the intended recipient, please notify the sender immediately and delete the material from any computer. Copying or disseminating this email or any information contained herein other than to the intended recipient is prohibited. This email has undergone all reasonable checks for viruses. However, TP Group plc cannot accept responsibility for any loss or damage arising from the transmission or use of this message and we therefore recommend that it be subjected to your own virus checking procedures. This message is attributed to the sender and may not necessarily reflect the views of TP Group plc. - ---------------------------------------------------------------- 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>
