In general 10-40 degrees Celcius is sufficient for indoor use. Most batteries keep enough energy to get the product started/operating, but I personally have experienced Iphones that crash when taking pictures outdoors in winter. ( below say 5 degrees Celcius) Same for (some) canon cameras (probably others too) operating from ordinary rechargeable penlites.
It did not prevent most manufacturers to just specify 10-40 degrees, and since consumers never read this stuff (do consumers ever read ? If they did so we would not call them consumers !) it obviously does not stop them from consuming when it's cold anyway. When integrating products into larger systems I use this range for non-specified products. It means that the inside temperature of these systems should not exceed 40 degrees, and this is very confronting to some manufacturers, used to integrate OEM stuff inside. Regards, Ing. Gert Gremmen Approvals manager ------------------------------------------------------------------------------------ + ce marking of electrical/electronic equipment + Independent Consultancy Services + Compliance Testing and Design for CE marking according to EC-directives: - Electro Magnetic Compatibility 2004/108/EC - Electrical Safety 2006/95/EC - Medical Devices 93/42/EC - Radio & Telecommunication Terminal Equipment 99/5/EC + Improvement of Product Quality and Reliability testing + Education Web: www.cetest.nl (English) Phone : +31 10 415 24 26 ------------------------------------------------------------------- This e-mail and any attachments thereto may contain information that is confidential and/or protected by intellectual property rights and are intended for the sole use of the recipient(s) named above. Any use of the information contained herein (including, but not limited to, total or partial reproduction, communication or distribution in any form) by persons other than the designated recipient(s) is prohibited. If you have received this e-mail in error, please notify the sender either by telephone or by e-mail and delete the material from any computer. Thank you for your co-operation. From: Scott Xe [mailto:[email protected]] Sent: Saturday 5 November 2016 17:27 To: [email protected] Subject: Re: [PSES] Operating temperature range for consumer electronics & electrical appliances Hi Adam, Thanks for your views/comments! In summary, most of suppliers produce uniform products for all countries including very cold weather ones. If the products are used indoors, the ambient temperature would not go to low temperature extreme. Thus general consumers including those lived in very cold areas do not need special design of products. If the product is transported from outdoors to customer house, a once-off warm-up time could be tolerated by most of consumers. For products used in tough environment, special design is required and cost is higher for small group of users only. Regards, Scott From: Adam Dixon <[email protected]> Date: Saturday, 5 November 2016 at 7:21 PM To: Scott Xe <[email protected]> Cc: <[email protected]> Subject: Re: [PSES] Operating temperature range for consumer electronics & electrical appliances Hi, Scott, Apple informs its customers about temperature extremes and battery/device performance in an easy-to-find article titled "Keeping iPhone, iPad, and iPod touch within acceptable operating temperatures." Apple users in Norway should have the same hardware as those in the US, so should be no unique thermal design for Norway. All consumer electronics manufacturers should have transportation/storage/operating temperature ranges, though it is difficult sometimes to locate the numbers in their documentation. I designed with LCD panels for several years and there are similar design challenges with liquid crystal temperature behavior at high/low temperature extremes. There was one panel design for worldwide use. Only when the panel was being designed into a product for outdoor use (ex: digital signage), were additional heating/cooling hardware added to ensure the panel itself stayed within the required liquid crystal temperature range. In the case of EU consumer electronics, the TV's listed on Tesco's site look quite similar to those on WalMart's and both have travelled from factories in Asia, so the temperature ranges are likely identical or very similar (though difficult to locate!). I expect your concern is more for portable electronics like cell phones and tablets? For larger appliances like the refrigerator and washer that you mention, there typically would be a temperature transition time associated with the delivery and installation which would likely satisfy the operating range (i.e. warm up to within operating range before being powered on for the first time). While not related to the EU consumer electronics market, there are some easy to find articles on NEBS compliance that describe the transition temperature times/rates to which NEBS hardware is tested -- just a comparison reference specific to the transition temp/time behavior since your concern seems more related to portable electronics and lithium batteries. Also, Panasonic has a short article describing Mil-Std-810G testing of their Toughbook family, but that's a "ruggedized" laptop compared to what most consumers use. Regards, Adam On Sat, Nov 5, 2016 at 4:51 AM, Scott Xe <[email protected]> wrote: John, Thanks for your sharing! It is really beyond our knowledge and experience. I thought UK is seldom to have such low temperature. It seems most of normal electrical appliances may really not work in some countries where their lowest temperature below 0 degC such as Norway. Do they have specially designed products for their markets? Regards, Scott From: John Woodgate <[email protected]> Date: Saturday, 5 November 2016 at 4:33 PM To: 'Scott Xe' <[email protected]>, <[email protected]> Subject: RE: [PSES] Operating temperature range for consumer electronics & electrical appliances It's largely unknown in Britain, I think. In recent years in the south of the island, an interior temperature near 0 C has probably been very rare, but that would not apply much further north, in the Highlands of Scotland. With best wishes DESIGN IT IN! OOO – Own Opinions Only www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Scott Xe [mailto:[email protected]] Sent: Saturday, November 5, 2016 8:16 AM To: [email protected] Subject: Re: [PSES] Operating temperature range for consumer electronics & electrical appliances Hi Ted, I am referring to general electrical products such as TVs, audios, refrigerators, washing machines, etc. for indoors use. The lowest operating temperature of lithium battery triggered us to talk about this subject. The lithium battery is not allowed to operate at 0 degC or less – it is actually not working well below 10 degC. We found most of electrical products are claimed to operate from 0 to 35-40 degC. If the users return home at night in winter and find all electrical products become malfunctioned. They have to turn on the heater and wait for the ambient temperature going upto 0 degC or higher. Is it a norm and acceptable user experience in EU? For the products used outdoors, the mobile devices using lithium battery are very common nowadays. How can they survive for outdoors use? Understand EV cars do have a heater helping the starting up but most of mobile devices do not have such luxury facility. Thanks and regards, Scott From: Ted Eckert <[email protected]> Date: Saturday, 5 November 2016 at 8:04 AM To: Scott Xe <[email protected]>, "[email protected]" <[email protected]> Subject: RE: [PSES] Operating temperature range for consumer electronics & electrical appliances Hi Scott, What is the product type? If this is something that could be used outdoors, you need to plan for winter temperatures in northern Sweden and summer temperatures in southern Spain. Consumer products intended for indoor use will still be used in un-air-conditioned residences in southern Europe in the summer. Ted Eckert Microsoft Corporation The opinions expressed are my own and do not necessarily reflect those of my employer. This email message may contain confidential and privileged information. Any unauthorized use is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. From: Scott Xe [mailto:[email protected]] Sent: Friday, November 4, 2016 4:18 PM To: [email protected] Subject: [PSES] Operating temperature range for consumer electronics & electrical appliances What is operating temperature range satisfying most conditions for EU? Thanks and regards, Scott - ---------------------------------------------------------------- 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]> - ---------------------------------------------------------------- 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]> - ---------------------------------------------------------------- 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]> - ---------------------------------------------------------------- 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]> - ---------------------------------------------------------------- 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]>
