Heber, I had the same problem with fuses in one of my products. We shipped "American" 5x20 mm fuses and they did not blow. However, when replaced by a fuse bought locally in the UK, they did blow prematurely. The only way we found around this was to specify a replacement fuse supplied by our company or that matched the specific manufacturer name and part number. We added a statement that said "replacing the mains fuse with a fuse other than the ones listed below may cause premature failure of the mains fuse" in our service notes.
Scott Douglas Principal Compliance Engineer ECRM Incorporated Telephone: 1-508-851-0207 Facsimilie: 1-508-851-7016 e-mail: [email protected] _______________________________________________________________________________ From: Farnsworth,Heber on Tue, Jun 17, 1997 1:00 AM Subject: How to specify IEC fuses To: Post News I want to specify in a user manual the use of IEC 127 fuses rather than U.S./Canadian fuses, and need to find wording that is clear and concise, especially to Americans. Suggestions please? Since the fuse curves are significantly different, the use of the American style fuse can lead to premature fuse opening. The fuse I want: 5 x 20 mm F 1A 250V (Low or High break capacity) per IEC 127-2 sheet 1 or 2, typically SEMKO approved, UL and CSA recognized, such as Bussmann GDA or GDB Littelfuse 216 Schurter SP or SFS The fuse I DON'T want: 5 X 20 mm fast-blo 1A 250V per UL & CSA standards, Listed by UL and CSA, such as Bussmann GMA Littelfuse 235 Anyone have any favorite wording? ------------------ RFC822 Header Follows ------------------ Received: by macgtwy.ecrm.com with SMTP;17 Jun 1997 01:00:00 -0400 Received: by highlight.ecrm.com (AA20095); Tue, 17 Jun 97 00:30:13 EDT Received: from ruebert.ieee.org by maildrop.ecrm.com (AAA17108); Tue, 17 Jun 1997 00:27:59 -0400 (EDT) Received: (from daemon@localhost) by ruebert.ieee.org (8.7.5/8.7.3) id RAA20382 for emc-pstc-list; Mon, 16 Jun 1997 17:43:53 -0400 (EDT) Message-Id: <c=US%a=_%p=Physio-Control%l=PHYSIOCONT/PHYSIO/[email protected]> From: "Farnsworth,Heber" <[email protected]> To: Post News <[email protected]> Subject: How to specify IEC fuses List-Post: [email protected] Date: Mon, 16 Jun 1997 14:39:00 -0700 X-Mailer: Microsoft Exchange Server Internet Mail Connector Version 4.0.837.3 Encoding: 21 TEXT Sender: [email protected] Precedence: bulk Reply-To: "Farnsworth,Heber" <[email protected]> X-Resent-To: Multiple Recipients <[email protected]> X-Listname: emc-pstc X-List-Description: Product Safety Tech. Committee, EMC Society X-Info: Help requests to [email protected] X-Info: [Un]Subscribe requests to [email protected] X-Moderator-Address: [email protected]
