[PSES] FCC Appliance Exemptions

2018-11-14 Thread Rob Oglesbee
This may be a stupid question, but in Part 15.103(d), does "appliance" refer to household appliances only? Or does it also include commercial appliances? It doesn't say in either the definitions section or in the exemptions section. The only relevant OET knowledge base publication I could

Re: [PSES] Cable current clamp with 4-20mA output

2017-12-08 Thread Rob Oglesbee
What accuracy class? If this is for sub-metering, something like this probably won’t work, but it does meet the cheap requirement: https://www.olimex.com/Products/Components/Sensors/SNS-CURRENT-CT013-100A/ If you need something more accurate, AEMC has a wide selection of probes, but they

Re: [PSES] Differences between IEC and UL 60730-1

2017-09-21 Thread Rob Oglesbee
Ted, Thanks. I found the right person and they were able to find that file. Regards, Rob From: Ted Eckert [mailto:ted.eck...@microsoft.com] Sent: Thursday, September 21, 2017 11:01 AM To: Rob Oglesbee <rob.ogles...@rheem.com>; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: Differences betwe

[PSES] Differences between IEC and UL 60730-1

2017-09-21 Thread Rob Oglesbee
Pardon my ignorance, but is there a place I can purchase just the differences between an IEC standard and the UL version? Regards, Rob - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.

Re: [PSES] Another benefit of Time Domain EMI receivers

2017-08-14 Thread Rob Oglesbee
I've had experience with them at a private test lab, and it makes going to those test labs that are still stuck in the 1990's an excruciating experience. Rob From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Monday, August 14, 2017 12:08 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re:

Re: [PSES] IEC 61010-2-030 Transient Overvoltage Testing

2015-08-05 Thread Rob Oglesbee
Tubes conduct they won't let go once the MOVs short. The Other Brian From: Rob Oglesbee [mailto:rogles...@radianresearch.com] Sent: Tuesday, August 04, 2015 3:23 PM To: EMC-PSTC@LISTSERV.IEEE.ORGmailto:EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] IEC 61010-2-030 Transient Overvoltage Testing I

Re: [PSES] IEC 61010-2-030 Transient Overvoltage Testing

2015-08-05 Thread Rob Oglesbee
engineering. My guess is that the standard-writers wished to stress a MOV into failure by not allowing it to fully cool between surges. Regards, Rob From: ce-test, qualified testing bv - Gert Gremmen [mailto:g.grem...@cetest.nl] Sent: Wednesday, August 05, 2015 2:43 PM To: Rob Oglesbee rogles

[PSES] IEC 61010-2-030 Transient Overvoltage Testing

2015-08-04 Thread Rob Oglesbee
I have a circuit I'm using to reduce the Overvoltage Category Level from 600V/CAT IV to 600V/CAT II before hitting an instrumentation transformer. I wish to test it per IEC 61010-2-030 Clause 14.101 (Circuits or components used as Transient Overvoltage limiting devices in measuring circuits

Re: [PSES] Quasi Peak - Length of Measurement Time for Final Spot Measurement?

2015-03-26 Thread Rob Oglesbee
James, Since you are aware of it, you need to make sure you capture the max reading. Rob Oglesbee Radian Research (765) 449-5505 This message, and any attachments to it, may contain information that is privileged, confidential, and exempt from disclosure under applicable law

Re: [PSES] Noisy DC / DC converter

2014-12-02 Thread Rob Oglesbee
, Rob Oglesbee Radian Research (765) 449-5505 This message, and any attachments to it, may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are notified that any use, dissemination

Re: [PSES] Noisy DC / DC converter

2014-12-02 Thread Rob Oglesbee
Right. I was thinking discrete design, but if it is a module with certs you don't have many options other than keeping the noise from finding an antenna. Rob Oglesbee Radian Research (765) 449-5505 This message, and any attachments to it, may contain information that is privileged, confidential