[PSES] Symbols for CCC Approval
Hello all, I am being asked to add two symbols to my product silkscreen for CCC Approvals. One symbol is a not circle with waves at the bottom (water) and curled lines above (moisture I guess). This is to signify not for use in tropical regions. The second symbol is a circle with mountains and <=2000m inside it. This signifies use only below 2,000 meters in altitude. Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? Thank you in advance for any help provided. 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] Symbols for CCC Approval
Hi Scott, For standard reference we would need to know what type of product this is? Audio & Video products are GB8898-2011 a nationalized version of IEC 60065. IT are standard GB4943 a version of IEC 60950. UL wrote a good guide for GB4943 that includes the symbols at <http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCYQFjAB&url=http%3A%2F%2Ful.com%2Fglobal%2Fdocuments%2Fofferings%2Findustries%2Fhightech%2Fresources%2Fccc%2Fgb8898_2011_upgrade_guidance_cqc_cz_july_10_2012_final.pdf&ei=pDkrVLOoHYKsogS5rIDYCQ&usg=AFQjCNEhIoOtaC7pMdDct_0M6Sq18PAFsw&bvm=bv.76477589,d.cGE> Impact Analysis IEC 60950-1_2nd+A1 vs GB 4943 1_2011_MZ_final<http://ul.com/global/documents/offerings/industries/hightech/resources/ccc/iec60950-1_2nd_a1_vs_gb4943%201_2011_mz_final.pdf> Respectfully, Chuck McDowell Compliance Specialist Meyer Sound Laboratories Inc. From: Scott Douglas [mailto:sdouglas...@gmail.com] Sent: Tuesday, September 30, 2014 3:13 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Symbols for CCC Approval Hello all, I am being asked to add two symbols to my product silkscreen for CCC Approvals. One symbol is a not circle with waves at the bottom (water) and curled lines above (moisture I guess). This is to signify not for use in tropical regions. The second symbol is a circle with mountains and <=2000m inside it. This signifies use only below 2,000 meters in altitude. Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? Thank you in advance for any help provided. 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 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 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)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas mailto:emcp...@radiusnorth.net>> Mike Cantwell mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher mailto:j.bac...@ieee.org>> David Heald mailto:dhe...@gmail.com>> NOTICE: This email may contain confidential information. Please see http://www.meyersound.com/confidential/ for our complete policy. - 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] Symbols for CCC Approval
Hi Scott, This requirement comes from the National Differences published in the CB Bulletin. If the product is ITE, then clause 1.7.2.1 was modified. It is acceptable to provide the Chinese translation of the statements below as well as to use the icons. I can provide the translation if you email me directly. China doesn’t provide nice graphics for the symbol, you have to pull them right out of the CB report. Add requirements of warning for equipment intended to be used at altitude not exceeding 2000m or at non-tropical climate regions: For equipment intended to be used at altitude not exceeding 2000m, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used at altitude not exceeding 2000m." For equipment intended to be used in not-tropical climate regions, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used in not-tropical climate regions.” If only the symbol used, the explanation of the symbol shall be contained in the instruction manual. The above statements shall be given in a language acceptable to the regions where the apparatus is intended to be used. Regards, Mike On 30-Sep-2014, at 5:13 PM, Scott Douglas wrote: > Hello all, > > I am being asked to add two symbols to my product silkscreen for CCC > Approvals. > > One symbol is a not circle with waves at the bottom (water) and curled lines > above (moisture I guess). This is to signify not for use in tropical regions. > > The second symbol is a circle with mountains and <=2000m inside it. This > signifies use only below 2,000 meters in altitude. > > Can anyone tell me where these two symbols come from (standards reference) > and where one can get vector artwork for same? > > Thank you in advance for any help provided. > > 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 > > > 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 > Mike Cantwell > > For policy questions, send mail to: > Jim Bacher > David Heald > - 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] Symbols for CCC Approval
In message , dated Tue, 30 Sep 2014, Scott Douglas writes: Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? I thought they had been added to IEC 60417 or ISO 7000 but I can't find them there. -- OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk Quid faciamus nisi sit? John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] Symbols for CCC Approval
Are these symbols and text required for all EEE shipped to China or only ITE? This is the first I've heard of this. The Other Brian From: Mike Cantwell [mailto:mike.cantw...@outlook.com] Sent: Tuesday, September 30, 2014 8:10 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Symbols for CCC Approval Hi Scott, This requirement comes from the National Differences published in the CB Bulletin. If the product is ITE, then clause 1.7.2.1 was modified. It is acceptable to provide the Chinese translation of the statements below as well as to use the icons. I can provide the translation if you email me directly. China doesn't provide nice graphics for the symbol, you have to pull them right out of the CB report. Add requirements of warning for equipment intended to be used at altitude not exceeding 2000m or at non-tropical climate regions: For equipment intended to be used at altitude not exceeding 2000m, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used at altitude not exceeding 2000m." For equipment intended to be used in not-tropical climate regions, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used in not-tropical climate regions." If only the symbol used, the explanation of the symbol shall be contained in the instruction manual. The above statements shall be given in a language acceptable to the regions where the apparatus is intended to be used. Regards, Mike On 30-Sep-2014, at 5:13 PM, Scott Douglas mailto:sdouglas...@gmail.com>> wrote: Hello all, I am being asked to add two symbols to my product silkscreen for CCC Approvals. One symbol is a not circle with waves at the bottom (water) and curled lines above (moisture I guess). This is to signify not for use in tropical regions. The second symbol is a circle with mountains and <=2000m inside it. This signifies use only below 2,000 meters in altitude. Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? Thank you in advance for any help provided. 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 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 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)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas mailto:emcp...@radiusnorth.net>> Mike Cantwell mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher mailto:j.bac...@ieee.org>> David Heald 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 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 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)<http://www.ieee-pses.org/list.html> List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas mailto:emcp...@radiusnorth.net>> Mike Cantwell mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher mailto:j.bac...@ieee.org>> David Heald mailto:dhe...@gmail.com>> LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - 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 All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pse
Re: [PSES] Symbols for CCC Approval
I did a lot of research on the new CQC requirements when I first found out about them in early 2012 so some of the information, like drop dead date, below may have changed since then but here is a short version of what I learned. I can only speak Audio/ Video Products but this requirement was published in the 2011 version of GB8898 (IEC60065) December 30th 2011. The transition dates for implementation were published by CQC on April 11th 2012. The drop dead date for meeting the new requirements and updating your CCC Mark certificates to the 2011 version of GB8898 was February 1, 2014 after which the certificate would be cancelled by CQC. The short answer is there are two new requirements to consider 1. Altitude: this requires meeting increased creepage requirements based on a max altitude of 5000m. Per IEC60664-1:2007 the clearance spacings increase by 1.48X the spacing for product for install below 2000M. As a result creepage distances will also increase as creepage cannot be less than clearance. 2. Tropical Environment: In addition to testing the product for an ambient temperature of 45C the product must meet reduced limits for Touch Current and for Hazardous Live parts. If you cannot meet the new Altitude and /or Tropical Environment you can mark your product and put information in the user instructions. Here is what I learned about the marking requirements. I can’t include the symbols due to list rules but the UL fact sheet Chuck posted the link for shows the symbols. As an alternative to meeting the increased spacing requirements you can declare the products are not meant for installation at altitudes above 2000m and add the following symbol and verbiage, in Chinese, to the product label. (Symbol for Altitude placed here) “Only suitable for use at areas with altitude less than 2000m” “仅适用于2000m以下地区安全使用” (Chinese translation) If only the symbol is used on the product label, due to size constraints, it shall be explained in the user manual. The safety warning sentence shall use the language acceptable to the country where the apparatus is intended to be sold (simplified Chinese is acceptable). For low voltage product with an external wall/floorwart power supply only the power supply will need be marked with the symbol or verbiage if noncompliant. The low voltage product is exempt from the marking requirement. 2. Tropical conditions Products must now comply for use in Tropical conditions and ambient temperatures above 45°C. If the product is evaluated for compliance for those conditions and is found non-compliant the product must have the following symbol and verbiage on the label. (Symbol for Tropical conditions placed here) “Only suitable for use at non-tropic climate areas” “仅适用于非热带气候条件下安全使用” (Chinese translation) If only the symbol is used on the product label, due to size constraints, it shall be explained in the user manual. The safety warning sentence shall use the language acceptable to the country where the apparatus is intended to be sold (simplified Chinese is acceptable). For a system comprised of an external power supply and low voltage product both may need the markings if they don’t comply with all of the heating, reduced touch current and accessible hazardous voltage limits. So you do have the choice of complying with the new requirements or marking your product and including information in the user’s manual. Hope this helps and please feel free to correct anything you feel is not valid in my post. Here is a link to the original CQC notice that started my research http://www.cqc.com.cn/english/published/TechnicalStandards/InformationonNewVersionStandard/webinfo/2012/04/1333591221336637.htm From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Wednesday, October 01, 2014 8:30 AM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Symbols for CCC Approval Are these symbols and text required for all EEE shipped to China or only ITE? This is the first I’ve heard of this. The Other Brian From: Mike Cantwell [mailto:mike.cantw...@outlook.com] Sent: Tuesday, September 30, 2014 8:10 PM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Symbols for CCC Approval Hi Scott, This requirement comes from the National Differences published in the CB Bulletin. If the product is ITE, then clause 1.7.2.1 was modified. It is acceptable to provide the Chinese translation of the statements below as well as to use the icons. I can provide the translation if you email me directly. China doesn’t provide nice graphics for the symbol, you have to pull them right out of the CB report. Add requirements of warning for equipment in
[PSES] 回复: [PSES] Symbols for CCC Approval
Hi Scott, The symbols are from GB 4943 and GB8898. There is no vector artwork in the standard. You can design it by yourself or you can print the Chinese characters to indicate the condition if you have enough space on the lable. Best regards, Paul Wang - Reply message - 发件人: "Chuck McDowell" 收件人: 主题: [PSES] Symbols for CCC Approval 日期: 周三, 10月 1 日, 2014 年 07:27 Hi Scott, For standard reference we would need to know what type of product this is? Audio & Video products are GB8898-2011 a nationalized version of IEC 60065. IT are standard GB4943 a version of IEC 60950. UL wrote a good guide for GB4943 that includes the symbols at Impact Analysis IEC 60950-1_2nd+A1 vs GB 4943 1_2011_MZ_final Respectfully, Chuck McDowell Compliance Specialist Meyer Sound Laboratories Inc. From: Scott Douglas [mailto:sdouglas...@gmail.com] Sent: Tuesday, September 30, 2014 3:13 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Symbols for CCC Approval Hello all, I am being asked to add two symbols to my product silkscreen for CCC Approvals. One symbol is a not circle with waves at the bottom (water) and curled lines above (moisture I guess). This is to signify not for use in tropical regions. The second symbol is a circle with mountains and <=2000m inside it. This signifies use only below 2,000 meters in altitude. Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? Thank you in advance for any help provided. 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher David Heald NOTICE: This email may contain confidential information. Please see http://www.meyersound.com/confidential/ for our complete policy. - 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
[PSES] 回复: [PSES] Symbols for CCC Approval
Hi Brian, It is only required for ITE and A/V equipment which is supposed to be used under 2000m or non-tropical zone. Best regards, Paul Wang - Reply message - 发件人: "Kunde, Brian" 收件人: 主题: [PSES] Symbols for CCC Approval 日期: 周三, 10月 1 日, 2014 年 20:30 Are these symbols and text required for all EEE shipped to China or only ITE? This is the first I’ve heard of this. The Other Brian From: Mike Cantwell [mailto:mike.cantw...@outlook.com] Sent: Tuesday, September 30, 2014 8:10 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Symbols for CCC Approval Hi Scott, This requirement comes from the National Differences published in the CB Bulletin. If the product is ITE, then clause 1.7.2.1 was modified. It is acceptable to provide the Chinese translation of the statements below as well as to use the icons. I can provide the translation if you email me directly. China doesn’t provide nice graphics for the symbol, you have to pull them right out of the CB report. Add requirements of warning for equipment intended to be used at altitude not exceeding 2000m or at non-tropical climate regions: For equipment intended to be used at altitude not exceeding 2000m, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used at altitude not exceeding 2000m." For equipment intended to be used in not-tropical climate regions, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used in not-tropical climate regions.” If only the symbol used, the explanation of the symbol shall be contained in the instruction manual. The above statements shall be given in a language acceptable to the regions where the apparatus is intended to be used. Regards, Mike On 30-Sep-2014, at 5:13 PM, Scott Douglas wrote: Hello all, I am being asked to add two symbols to my product silkscreen for CCC Approvals. One symbol is a not circle with waves at the bottom (water) and curled lines above (moisture I guess). This is to signify not for use in tropical regions. The second symbol is a circle with mountains and <=2000m inside it. This signifies use only below 2,000 meters in altitude. Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? Thank you in advance for any help provided. 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher David Heald - 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 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 Mike Cantwell For policy questions, send mail to: Jim Bacher David Heald LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - 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 C
Re: [PSES] 回复: [PSES] Symbols for CCC Approval
The national difference for China regarding tropical conditions is very similar to national differences for Singapore, Mexico and a few other tropical countries. It is relatively simple to meet this requirement with temperature/humidity preconditioning before the electric strength tests. As such, it isn’t too difficult to design products to meet the tropical condition requirements and thereby eliminate the need to apply the “no tropical conditions” marking. The altitude marking is more of a challenge. The Chinese national difference requires equipment to be designed for altitudes of 5000 meters minimum before this marking can be removed. This requires a significant change to spacings in power supplies. The way the regulation is written, unless the product is designed for use at 5000 meters, it must be marked for use at less than 2000 meters. There is no option for marking at altitudes between the two. That being said, the altitude marking is not required for SELV powered products where the spacings do not apply. For example, a laptop with an external supply would have the altitude marking on the power supply but not the laptop. Ted Eckert Compliance Engineer Microsoft Corporation ted.eck...@microsoft.com<mailto:ted.eck...@microsoft.com> The opinions expressed are my own and do not necessarily reflect those of my employer. For that matter, the opinions expressed do not necessarily reflect the opinions of the Chinese national standards body, test agencies or possibly reality. From: paulw...@gmcompliance.com [mailto:paulw...@gmcompliance.com] Sent: Wednesday, October 1, 2014 7:17 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] 回复: [PSES] Symbols for CCC Approval Hi Brian, It is only required for ITE and A/V equipment which is supposed to be used under 2000m or non-tropical zone. Best regards, Paul Wang - Reply message - 发件人: "Kunde, Brian" mailto:brian_ku...@lecotc.com>> 收件人: mailto:EMC-PSTC@LISTSERV.IEEE.ORG>> 主题: [PSES] Symbols for CCC Approval 日期: 周三, 10月 1 日, 2014 年 20:30 Are these symbols and text required for all EEE shipped to China or only ITE? This is the first I’ve heard of this. The Other Brian From: Mike Cantwell [mailto:mike.cantw...@outlook.com] Sent: Tuesday, September 30, 2014 8:10 PM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Symbols for CCC Approval Hi Scott, This requirement comes from the National Differences published in the CB Bulletin. If the product is ITE, then clause 1.7.2.1 was modified. It is acceptable to provide the Chinese translation of the statements below as well as to use the icons. I can provide the translation if you email me directly. China doesn’t provide nice graphics for the symbol, you have to pull them right out of the CB report. Add requirements of warning for equipment intended to be used at altitude not exceeding 2000m or at non-tropical climate regions: For equipment intended to be used at altitude not exceeding 2000m, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used at altitude not exceeding 2000m." For equipment intended to be used in not-tropical climate regions, a warning label containing the following or a similar appropriate wording, or a symbol as in annex DD shall fixed to the equipment at readily visible place. "Only used in not-tropical climate regions.” If only the symbol used, the explanation of the symbol shall be contained in the instruction manual. The above statements shall be given in a language acceptable to the regions where the apparatus is intended to be used. Regards, Mike On 30-Sep-2014, at 5:13 PM, Scott Douglas mailto:sdouglas...@gmail.com>> wrote: Hello all, I am being asked to add two symbols to my product silkscreen for CCC Approvals. One symbol is a not circle with waves at the bottom (water) and curled lines above (moisture I guess). This is to signify not for use in tropical regions. The second symbol is a circle with mountains and <=2000m inside it. This signifies use only below 2,000 meters in altitude. Can anyone tell me where these two symbols come from (standards reference) and where one can get vector artwork for same? Thank you in advance for any help provided. 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 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 Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in