Re: Three-phase mains emissions testing

I agree with Mr. Richards. Not placing the other LISNs in-line would affect the measurement on the LISN that was in-line. From: Bob Richards b...@toprudder.com List-Post: emc-pstc@listserv.ieee.org Date: Fri, 10 Sep 2004 10:49:56 -0700 (PDT) To: emc-p...@ieee.org Subject: Re: Three-phase

Re: Three-phase mains emissions testing

Bill, You must have a LISN on all three phases, and neutral if the product has that. All the LISNs not being measured must have the measurement port terminated by a 50 ohm load. You can either use a LISN that has all three phases, or you could use multiple single-conductor LISNs. The

Three-phase mains emissions testing

Esteemed homologists, Is anyone familiar with the requirements for conducted emissions testing on three-phase mains? Can one impoverished tester insert one rented (30A-capable) LISN to each line in turn, or must the LISN involve all three lines simultaneously? CISPR 16-1 is a little vague on

Re: EN61000-3-3 Flicker 24 switching cycles.

In article C8E28FDB460D664AA3AD73D1D53AEF1906B946@post.hursley- emc.co.uk, Julian Jones ju...@hursley-emc.co.uk writes Has anyone found a way round having to perform the 24 power on and off cycles in the new flicker standard regarding inrush currents ? No; it works to the manufacturer's

EN61000-3-3 Flicker 24 switching cycles.

Has anyone found a way round having to perform the 24 power on and off cycles in the new flicker standard regarding inrush currents ? Perhaps by using phase sensing ensure switching to ensure power on occurs at 90 deg and 270 deg. Has this been accepted by any accreditation agencies ? I'd be

Re:Few questions on ESD testing

Vinod, 1. The ESD test allows reduction in function during the testing as long as it returns to normal operation when the test is complete without operator intervention. As long as these bit errors don't cause the system to hang it should be ok. If it hangs up to where it has to be reset by the

RE: Few questions on ESD testing

I'm not familiar with any standards that require air discharges to metallic surfaces. (However, I'm not familiar with every ESD standard in the world.) Air discharges are usually only performed on insulated surfaces, seams, keypads and semi-insulated surfaces. As a matter of fact, I do contact

Few questions on ESD testing

Dear Group, I have a few questions on ESD testing. 1. When ESD testing a communications equipment, it is passing the tests at 4KV( Contact Discharge) and 8 KV (Air Discharge) without any bit errors on the line. However, when an Air Discharge is done on metallic surface, we are getting errors at