Group,
Has anyone performed or can point me to a 100V, 100ms transient/surge spec for ETSI? I have a product that needs to meet this requirement and the client states it's required under ETSI 132-2 which it is not. ( At least not under the current revision ) However, I have found several DC brick manufacturers claiming compliance to an ETSI 132-2 spec for a 100V, 100ms transient. One dc brick manufacturer states: The impetus for the change to 100V for 100ms input voltage transient protection is primarily due to a particular interpretation of the ETSI ETS300 132-2 specification. A number of our customers have uniquely interpreted this document to indicate that a 100V input transient for 100ms is a necessary requirement of all dc/dc converters to meet this specification. We feel that this interpretation of the ETSI spec will become more widespread and eventually could become an industry standard for dc/dc converters. The specific requirement states that all dc/dc converters must have the ability to withstand a transient that lasts between 10ms and 100ms of 100V amplitude without shutting down or being damaged. The actual ETSI specification is admittedly very vague and does not even mention the amplitude of the voltage step. Many companies have interpreted the exact same document differently and indicate that 100V for 10 μs input voltage transient capability is acceptable. In fact, nearly all dc/dc converters available on the market today provide a lower level of protection. We havedecided to implement this design change on new products so that we can satisfy both sets of customers, regardless of how they interpret this ETSI specification. Therefore, we are providing protection above and beyond what is expected and required in the marketplace. Meeting the demanding requirements of our global customers will result in increased worldwide compliance for our product line. Any experience, updates or comments on this is appreciated. Thanks, Jeff - ---------------------------------------------------------------- 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://listserv.ieee.org/request/user-guide.html 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]>
