Re: Surge (immunity) requirement for equipment in telecommunication c enters

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

Re: Surge (immunity) requirement for equipment in telecommunication c

Hello all. One related NEBS interpretation is based on the occurrence of the building housing the equipment being hit by lightning. If the frame of the building is carrying this large current spike, on the longer cables that are run through the building (likely over 10m) enough energy

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