Re: [PSES] Pilot rating

2017-12-11 Thread Ralph McDiarmid
for capacitive elements) Ralph McDiarmid Product Compliance Engineering Solar Business Schneider Electric From: Peter Tarver [mailto:ptar...@enphaseenergy.com] Sent: Friday, December 08, 2017 5:23 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating Hi, Jon. Switching a

Re: [PSES] Pilot rating

2017-12-08 Thread Peter Tarver
ailto:ri...@ieee.org] Sent: Friday, December 08, 2017 13:09 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating The ultimate issue is what safety issue occurs if the contactor fails to open or close when it is supposed to? If there is no safety consequence, then the contactor contro

Re: [PSES] Pilot rating

2017-12-08 Thread Richard Nute
constitute a safeguard and must be “reliable,” and must meet the intent of the standard. Not so cynical Rich From: Jon Keeble [mailto:j...@wattwatchers.com.au] Sent: Thursday, December 7, 2017 12:29 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Pilot rating I am using a Panasonic

Re: [PSES] Pilot rating

2017-12-08 Thread Richard Nute
“Agreement is usually a compromise for both sides.” Unfortunately, the process denigrates science and engineering (but saves face for both sides, especially the certification house). Still cynical Rich - This me

Re: [PSES] Pilot rating

2017-12-07 Thread John Shinn
le > Engine, Land Instrument Airplane. 😊 And you? > > Ghery S. Pettit > > From: Jon Keeble [mailto:j...@wattwatchers.com.au] > Sent: Thursday, December 7, 2017 12:29 PM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: [PSES] Pilot rating > > I am using a Panas

Re: [PSES] Pilot rating

2017-12-07 Thread Pete Perkins
G Subject: Re: [PSES] Pilot rating Interesting. The test engineer at the NRTL (not UL) I always work with always says we (the lab and the client) must always apply sound engineering judgment when applying standards when something isn’t completely clear or straightforward in the standard. An

Re: [PSES] Pilot rating

2017-12-07 Thread Nyffenegger, Dave
their reports can withstand the scrutiny of the OSHA auditor. -Dave From: Richard Nute [mailto:ri...@ieee.org] Sent: Thursday, December 07, 2017 6:12 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating According to https://www.macromatic.com/blog/relays/what-are-pilot-duty-ratings

Re: [PSES] Pilot rating

2017-12-07 Thread Richard Nute
, for the hint of a web search. From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Thursday, December 7, 2017 2:00 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating A web search for 'OPTOMOS pilot duty rating' produces useful information, including references to

Re: [PSES] Pilot rating

2017-12-07 Thread Ralph McDiarmid
: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating I only pilot paper airplanes and this isn't my area of expertise, but it looks like this potential requirement originates in NEMA ICS 5 "Industrial Control and Systems:  Control Circuit and Pilot Devices" and perhaps also in IEC 6

Re: [PSES] Pilot rating

2017-12-07 Thread Adam Dixon
; Ghery S. Pettit >> >> >> >> *From:* Jon Keeble [mailto:j...@wattwatchers.com.au] >> *Sent:* Thursday, December 7, 2017 12:29 PM >> *To:* EMC-PSTC@LISTSERV.IEEE.ORG >> *Subject:* [PSES] Pilot rating >> >> >> >> I am using a Panason

Re: [PSES] Pilot rating

2017-12-07 Thread John Woodgate
8 *To:* EMC-PSTC@LISTSERV.IEEE.ORG *Subject:* Re: [PSES] Pilot rating UL does not have a sense of humor that we are aware of. TOB - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a me

Re: [PSES] Pilot rating

2017-12-07 Thread John Allen
UL, AND every other certification body – especially if there is “money” in it L From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: 07 December 2017 21:48 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating UL does not have a sense of humor that we are aware of. TOB

Re: [PSES] Pilot rating

2017-12-07 Thread John Woodgate
hursday, December 7, 2017 12:29 PM *To:* EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> *Subject:* [PSES] Pilot rating I am using a Panasonic AQH3213A PhotoMOS optical isolator to control a small contactor. At 110VAC the contactor coil draws 30mArms. T

Re: [PSES] Pilot rating

2017-12-07 Thread Kunde, Brian
UL does not have a sense of humor that we are aware of. TOB From: Jon Keeble [mailto:j...@wattwatchers.com.au] Sent: Thursday, December 07, 2017 4:45 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating We are getting a somewhat innovative product through UL at the moment. So

Re: [PSES] Pilot rating

2017-12-07 Thread Jon Keeble
j...@wattwatchers.com.au] > *Sent:* Thursday, December 7, 2017 12:29 PM > *To:* EMC-PSTC@LISTSERV.IEEE.ORG > *Subject:* [PSES] Pilot rating > > > > I am using a Panasonic AQH3213A PhotoMOS optical isolator to control a > small contactor. > > > > At 110VAC the contact

Re: [PSES] Pilot rating

2017-12-07 Thread Ghery Pettit
, December 7, 2017 12:29 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Pilot rating I am using a Panasonic AQH3213A PhotoMOS optical isolator to control a small contactor. At 110VAC the contactor coil draws 30mArms. The coil contacts are wired to a PCB via a terminal block plug and socket

[PSES] Pilot rating

2017-12-07 Thread Jon Keeble
I am using a Panasonic AQH3213A PhotoMOS optical isolator to control a small contactor. At 110VAC the contactor coil draws 30mArms. The coil contacts are wired to a PCB via a terminal block plug and socket. On the PCB is a series 10ohm fusible resistor, and a SMBJ400AC bidirectional zener. When