Hey Don, Thank you for the information very enlightening and surprising. I was going to have my ME's check the pressure (force) because the unit under test will be an unsupported touch panel assembly and I was a bit concerned that the water pressure would distort the touch sensors and pull them free of the bezel. If that was the case I was thinking about 3D printing a backstop for the panel. (We don't have the full assembly at this plant so doing the test on a subset of the equipment)
Again thank you for the effort and for teaching me something new Gary From: Gies, Don (Nokia - US) [mailto:don.g...@nokia-bell-labs.com] Sent: Friday, June 10, 2016 10:17 AM To: Gary McInturff; EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] RE: slightly off target but NEMA 4 Gary, The short answer for the difference in tests is because the NEMA 250 and IEC 60529 standards evolved separately and became the norms for North America and the rest of the world, respectively. A mechanical engineer colleague of mine once pointed out that the pressure coming out of the nozzle for the IPX6 test nozzle, 100 liters per minute through a 12.5 mm diameter circular opening, is actually higher than that of the NEMA Type 4 Hosedown Test, conducted at 240 liters per minute (65 gallons per minute) through a 25 mm (1 inch) diameter circular opening. I can confirm this because when we put a set-up in our facility at Bell Labs, Murray Hill, NJ by having a fire-hose spigot put into the main water line, we had enough water pressure to conduct the NEMA Type 4 Hosedown Test, but not enough to conduct the IPX6 test. We installed a fire pump in the water line to boost the pressure up in order to conduct the IPX6 test. Best regards, DON GIES NOKIA Bell Labs SENIOR PRODUCT COMPLIANCE ENGINEER GLOBAL PRODUCT COMPLIANCE LABORATORY 600-700 Mountain Avenue Room 5B-104 Murray Hill, NJ 07974-0636 USA Phone: +1 908 582 5978 Mobile: +1 732 207 7828 don.g...@nokia-bell-labs.com<mailto:don.g...@nokia-bell-labs.com> From: Gary McInturff [mailto:gary.mcintu...@esterline.com] Sent: Friday, June 10, 2016 12:51 PM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: [PSES] slightly off target but NEMA 4 Have a request from a customer to do a NEMA 4 Spray test. I had always equated NEMA and the EU IPX series as roughly equivalent - and in fact have pumps and equipment to do the IPX6 test but was double checking to see that it was sufficient for NEMA 4. Turns out NEMA is about double the flow requirement of IPX6 requiring 65 gallons per minute. Yikes! Anybody know a reason why that, to me, outrageous flow rate. I'll get the pumps etc. but that just seems way overkill so I'm just trying to put some reasoning behind the number. Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products 600 W. Wilbur AvenueCoeur d'Alene, ID 83815-9496 Toll Free: 800-444-5923 Tel: (208) 635-8306 www.esterline.com/interfacetechnologies<http://www.esterline.com/interfacetechnologies> Technology, Innovation, Performance... "Information in or attached to this e-mail message may be subject to export control restrictions of the International Traffic in Arms Regulations (ITAR) (22 CFR pts. 120-130) or the Export Administration Regulations (EAR) (15 CFR pts. 730-774). Before exporting this information outside the United States or releasing it to a foreign person in the United States, you need to determine whether a license under the EAR or the ITAR is required to do so. If you have any questions about this obligation, please contact me." Click here<http://www.esterline.com/governance/email_disclaimer/tabid/1532/Default.aspx> to read disclaimer - ---------------------------------------------------------------- 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<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_emc-2Dpstc.html&d=DQMFAg&c=0hKVUfnuoBozYN8UvxPA-w&r=RJLDFgHJo89sjFN46b74hFXEuxvz4Z1iAx-glaOgP0k&m=OPciQj4UmSB57oppICtLLZ__ln3Tj08uzB5QS-fQx3A&s=tqjxQ7aK0pE3b0OQLDm7L3v3W1_5LN3W2Rdc_dg11Qs&e=> Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/<https://urldefense.proofpoint.com/v2/url?u=http-3A__product-2Dcompliance.oc.ieee.org_&d=DQMFAg&c=0hKVUfnuoBozYN8UvxPA-w&r=RJLDFgHJo89sjFN46b74hFXEuxvz4Z1iAx-glaOgP0k&m=OPciQj4UmSB57oppICtLLZ__ln3Tj08uzB5QS-fQx3A&s=b9bYbKeI45QAlNZyJnEyDuuJdZRW8H6gvRN6dOJ7Uw4&e=> can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_&d=DQMFAg&c=0hKVUfnuoBozYN8UvxPA-w&r=RJLDFgHJo89sjFN46b74hFXEuxvz4Z1iAx-glaOgP0k&m=OPciQj4UmSB57oppICtLLZ__ln3Tj08uzB5QS-fQx3A&s=1bUtGkM2gcCw7_YjDUaEuaZvC5-GIzbQt7ZnmVxt94U&e=> Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_list.html&d=DQMFAg&c=0hKVUfnuoBozYN8UvxPA-w&r=RJLDFgHJo89sjFN46b74hFXEuxvz4Z1iAx-glaOgP0k&m=OPciQj4UmSB57oppICtLLZ__ln3Tj08uzB5QS-fQx3A&s=mYzPSSB5UuThmydO8TV6UAMWUWoyhLMXInkyN4P-uyo&e=> List rules: http://www.ieee-pses.org/listrules.html<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_listrules.html&d=DQMFAg&c=0hKVUfnuoBozYN8UvxPA-w&r=RJLDFgHJo89sjFN46b74hFXEuxvz4Z1iAx-glaOgP0k&m=OPciQj4UmSB57oppICtLLZ__ln3Tj08uzB5QS-fQx3A&s=TbmCwKncieTOPwt3sQusWNOJg9BSgeWwhEOIDHTuCcM&e=> For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org<mailto:sdoug...@ieee.org>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto: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>
