RE: Attachment Plugs and Power Cords
Robert, I see your point (as it relates to a typcial 'consumer' item like a TV) ), but I also agree with Richard's interpretation (as it relates to ITE equipment a la UL 1950, EN60950). There are 'consumer' ITE equipment and one would expect to get a plug. But also take into consideration that the plug may be added by the domestic importer/distributor prior to placing the item on the consumer market. This is typical in many cases, especially for high-end ITE equipment which is installed in office/business environments. Many consumer ITE equipment manufacturers also use detachable power cords, and the appropriate ones are thrown into the box prior to shipment to the country of destination. John Juhasz Fiber Options Bohemia, NY -Original Message- From: Robert Johnson [mailto:robe...@ma.ultranet.com] Sent: Thursday, October 07, 1999 9:37 AM To: IEEE Subject: Re: Attachment Plugs and Power Cords If you went to the store to buy a TV and one of the sets came without a plug on the end of the cord, what would your thoughts be? You can get away without plugs in some markets, but most customers expect a functioning product, not a do it yourself project. WOODS, RICHARD wrote: I can find nothing in IEC 950 nor EN 60950 that defines the requirements for an attachment plug for equipment that is not permanently connected. Due to the silence of the standard, I conclude that an attachment plug is not required per the standard. Therefore, it appears that the plug wiring methods and strain relief must be per the national standards and/or electrical codes of each country. For example, UL 1950 has a national deviation that specifies the need for a plug. I conclude that it is acceptable to CE mark a product that has no plug and allow a certified plug to be attached in any of the EU member states. CE marking compliance will not be affected. I conclude that it is acceptable to replace a plug on a CE marked product with a nationally acceptable plug without affecting CE marking compliance. I understand that the power cord must be acceptable for use in the target country. Therefore, it is not possible to ship a single attached power cord to Asia, Eastern Europe, Africa and South America since the power cord may not be legal in the target country even if a national plug is attached. Are my conclusions and understandings correct? - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Attachment Plugs and Power Cords
Richard: If I am not mistaken, IEC 950 refers to IEC 390. Furthermore, attachment caps and appliance inlets you should be abl;e to find in IEC 320. IMHO, you make your life unnecessirily hard on yourself if you try to interpret standards. Bogdan. WOODS, RICHARD wrote: I can find nothing in IEC 950 nor EN 60950 that defines the requirements for an attachment plug for equipment that is not permanently connected. Due to the silence of the standard, I conclude that an attachment plug is not required per the standard. Therefore, it appears that the plug wiring methods and strain relief must be per the national standards and/or electrical codes of each country. For example, UL 1950 has a national deviation that specifies the need for a plug. I conclude that it is acceptable to CE mark a product that has no plug and allow a certified plug to be attached in any of the EU member states. CE marking compliance will not be affected. I conclude that it is acceptable to replace a plug on a CE marked product with a nationally acceptable plug without affecting CE marking compliance. I understand that the power cord must be acceptable for use in the target country. Therefore, it is not possible to ship a single attached power cord to Asia, Eastern Europe, Africa and South America since the power cord may not be legal in the target country even if a national plug is attached. Are my conclusions and understandings correct? - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Attachment Plugs and Power Cords
If you went to the store to buy a TV and one of the sets came without a plug on the end of the cord, what would your thoughts be? You can get away without plugs in some markets, but most customers expect a functioning product, not a do it yourself project. WOODS, RICHARD wrote: I can find nothing in IEC 950 nor EN 60950 that defines the requirements for an attachment plug for equipment that is not permanently connected. Due to the silence of the standard, I conclude that an attachment plug is not required per the standard. Therefore, it appears that the plug wiring methods and strain relief must be per the national standards and/or electrical codes of each country. For example, UL 1950 has a national deviation that specifies the need for a plug. I conclude that it is acceptable to CE mark a product that has no plug and allow a certified plug to be attached in any of the EU member states. CE marking compliance will not be affected. I conclude that it is acceptable to replace a plug on a CE marked product with a nationally acceptable plug without affecting CE marking compliance. I understand that the power cord must be acceptable for use in the target country. Therefore, it is not possible to ship a single attached power cord to Asia, Eastern Europe, Africa and South America since the power cord may not be legal in the target country even if a national plug is attached. Are my conclusions and understandings correct? - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Attachment Plugs and Power Cords
Richard, Refer to my answers in the body of your text: I can find nothing in IEC 950 nor EN 60950 that defines the requirements for an attachment plug for equipment that is not permanently connected. Due to the silence of the standard, I conclude that an attachment plug is not required per the standard. Therefore, it appears that the plug wiring methods and strain relief must be per the national standards and/or electrical codes of each country. For example, UL 1950 has a national deviation that specifies the need for a plug. Agree! However you should include safety instructions on proper way of attaching a plug meeting the national regulations. I conclude that it is acceptable to CE mark a product that has no plug and allow a certified plug to be attached in any of the EU member states. CE marking compliance will not be affected. Agree! See above I conclude that it is acceptable to replace a plug on a CE marked product with a nationally acceptable plug without affecting CE marking compliance. Agree! See above. I understand that the power cord must be acceptable for use in the target country. Therefore, it is not possible to ship a single attached power cord to Asia, Eastern Europe, Africa and South America since the power cord may not be legal in the target country even if a national plug is attached. Power Cord must be of the UL Liste Type for North America and an HAR Type for Europe which is also accepted in most countries worldwide. I have also seen (but do not remember the manufacturer) of a Listed cord set which is also HAR. Are my conclusions and understandings correct? See above and Best Regards from Jerusalem. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). PETER S. MERGUERIAN MANAGING DIRECTOR PRODUCT TESTING DIVISION I.T.L. (PRODUCT TESTING) LTD. HACHAROSHET 26, P.O.B. 211 OR YEHUDA 60251, ISRAEL TEL: 972-3-5339022 FAX: 972-3-5339019 E-MAIL: pe...@itl.co.il Visit our Website: http://www.itl.co.il - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
