Peter, We have the same situation with my company's products. We use the nominal line to neutral voltage even when no neutral is present. Our experience has been that the certifying agencies accept this.
Best Regards, Jeff Jenkins Senior Regulatory Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, CO USA Opinions are my own, etc. -----Original Message----- From: pe...@itl.co.il [mailto:pe...@itl.co.il] Sent: Tuesday, July 06, 1999 1:57 PM To: emc-p...@ieee.org Cc: al...@itl.co.il; ico...@itl.co.il; zoh...@itl.co.il; plei...@itl.co.il; sgn...@itl.co.il Subject: UL1950/EN 60 950 Spacings Dear All, The subject standards specify that Tables 3, 4, 5 (clearances) are based on nominal line to neutral supply voltages. For equipment powered by 3 phase (L1,L2,L3 and earth) WITHOUT a neutral, how should the nominal supply voltage be treated? Regards, Peter 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). --------- 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).
