If the cables are longer than 10 meters, there is a good chance that they may run in cable troughs along side of cables that may come in from the out of doors.
====================== Zohar Zosmanovich <zohar_zosmanov...@radwin.com> on 12/20/2000 05:47:20 AM Please respond to Zohar Zosmanovich <zohar_zosmanov...@radwin.com> To: "'emc-p...@majordomo.ieee.org'" <emc-p...@majordomo.ieee.org> cc: (bcc: Robert E. Heller/US-Corporate/3M/US) Subject: Surge (immunity) requirement for equipment in telecommunication c enters Hi, The EN 300 386 (EMC requirements for telecommunication network equipment) require to perform a surge of 1.2/50 Tr/Th us, 0,5 kV to ports for indoor signal lines (in telecommunication centers), when cables longer than 10 m are connected ! Can some one explain my the rational of divided up to 10 m and more than 10 m, anyway all cable is in the building (indoors) ? Zohar (Jana) Zosmanovich Compliance Engineer, RADWIN ltd. 34 Habarzel St., Tel Aviv 69710, Israel Tel.: 972-3-7666735 ; Fax: 972-3-7657535 Email: <mailto:zohar_zosmanov...@radwin.com> ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org