Derek: A 10 amp LISN can usually handle 30 amps for a little while. (It's only a matter of ohmic heating at the external and internal connections and the inductor wire.)
Uhh, well, maybe with a strong fan. Or, as I once did, filled with silicon oil. Or, as I also once did, fitted with a pipe nipple to allow a continuous blast of compressed air to blow through the case. Or, as I even once did, fitted with a copper tube to admit a trickle of CO2. Yes, I have always been plagued with smaller LISN's than I needed. But seriously, if it's only for one job, and higher current models are really costly, than maybe the above isn't so weird. :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) Ed Price [email protected] Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 619-505-2780 (Voice) 619-505-1502 (Fax) Military & Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis :-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-):-) > -----Original Message----- > From: [email protected] [SMTP:[email protected]] > Sent: Tuesday, September 14, 1999 5:02 PM > To: [email protected] > Subject: Alternitive to LISN > > > Hi folks, > > I'm trying to make a conducted emissions measurement on a device that > draws > more current ( 30 amps ) than my LISN can handle ( 10 amps ). I believe > that > CISPR 11 ( at least ) allows the use of a voltage probe. If this is the > case, > how do I address: > > 1) the voltage probe construction in case I can make one? > 2) the power source impedance? > 3) where can I buy one of these? > 4) protect my analyzer? > 5) whatever I've forgotten;-)? > > Thanks, > > Derek. > > --------- > 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).
