The IEC 571-1/90 is an outdated standard. The standard valid now is IEC60571 that is nearly the same as the EN50155. The IEC 571-1/90 surge testing was, altough not directly comparable, much easier to live with (impedence 500 Ohm) than IEC 801-5. The normal amplitude is 1800 V. Even the new IEC60571 has only 100 Ohm impedence and provision for lower imoidence under agreement between user and manifacturer. Sorry for my bad English!
Regards, Roberto Vigliarolo Ferrovie dello Stato SpA Attività Elettronica Viale Lavagnini,58 50129 Firenze Italy Tel: +39-055-235-3848 Fax: +39-055-235-3581 Email: [email protected] > ---------- > Da: Beard, Susan[SMTP:[email protected]] > Risposta a: Beard, Susan > Inviato: martedì 25 gennaio 2000 14.16 > A: '[email protected]' > Oggetto: IEC 571-1 > > > > Does anyone have info on IEC 571-1/90? Our customer is refering to this > document as the EMI transient specification most applicable to our railway > program. I'd like to learn more as to why it is applicable and also how > this spec compares to the one to which we've already tested (IEC 801-5). > > Thanks, > Susan Beard > GE Harris Railway Electronics > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
