[PSES] Using ISM standards is a privilege not a requirement.

Experts, I am considering industrial machinery that might include as components all manner of devices (fluorescent lights, control computers, monitors, PWM motor drives, various sensors) and what radiated emission limits might be in either the CE or FCC realm. In the case that ISM devices (suc

Re: [PSES] 16 AWG wire usage

UL/CSA60950-1 has very specific material requirements for motors. And 508C being deprecated, we now have UL61800-5-1, so that might be helpful if this is a controlled-drive motor, but have not read so not certain. IEC60204 has broad scope, so there an 'equivalent' ANSI or CSA standard not availa

Re: [PSES] 16 AWG wire usage

I'm trying a preemptive attack on the design to make sure it complies before we get questioned by any AHJ or NRTL. Perhaps I should clarify the my original question is relevant to wiring internal to machinery hence the reference to NFPA 79. I'll take a look at NFPA 70 in a bit. Next on my lis

Re: [PSES] 16 AWG wire usage

Have an aphorism for this that was derived from another common one (Shaw), that found its way into a product's installation instructions: Do not argue with an AHJ, you will get dirty and the AHJ probably likes the dirt. Brian -Original Message- From: John Woodgate [mailto:j...@jmwa.dem

Re: [PSES] 16 AWG wire usage

In message .com>, dated Wed, 15 Apr 2015, Brian Oconnell writes: Article 430 should be referenced for this stuff. In general, overload protection required for each branch circuit at the distribution panel. Less bother doing it that way, than arguing with the AHJ. -- OOO - Own Opinions Only.

Re: [PSES] Schaffner net filter FN 2080

If you are trying to do an A-B comparison between two filters or simply characterize at different impedances, it is possible to use a 10:1 BALUN in line with your spectrum analyzer and tracking generator setup to intentionally introduce a mismatch in impedance.   I recommend doing three measurem

Re: [PSES] 16 AWG wire usage

Article 430 should be referenced for this stuff. In general, overload protection required for each branch circuit at the distribution panel. My experience with current interrupt stuff embedded within motor is typically to meet the EIS ratings (limits of windings), and unless it is thermomagneti

Re: [PSES] Schaffner net filter FN 2080

In message <64D32EE8B9CBDD44963ACB076A5F6ABB026D936A@Mailbox-Tech.lecotech.local>, dated Wed, 15 Apr 2015, "Kunde, Brian" writes: You may just want to characterize the line filter yourself. Then you will know. You will need a receiver or spectrum analyzer with a tracking generator, a network

Re: [PSES] Schaffner net filter FN 2080

You may just want to characterize the line filter yourself. Then you will know. You will need a receiver or spectrum analyzer with a tracking generator, a network analyzer, or a sig gen and power meter combination. Our lab uses a simple labview program for characterizing amps, filters, cables, a

[PSES] SV: [PSES] Schaffner net filter FN 2080

I was just curious because Schurter have diagrams up to 400MHz on their filters, and since I have a RF field immunity issue at 100-150MHz (induced noise on AC cable disturb PSU), I'm looking for some potential net filters. #Amund -Opprinnelig melding- Fra: John Woodgate [mailto:j...@jmwa

Re: [PSES] Schaffner net filter FN 2080

In message <00c701d0774a$2d0b60b0$8710$@westin-emission.no>, dated Wed, 15 Apr 2015, Amund Westin writes: What kind of filter attenuation can be expected in the frequency region 100-150MHz? You have to ask the manufacturers. Can only find filter diagrams up to 30-40MHz. That's partly

[PSES] Schaffner net filter FN 2080

What kind of filter attenuation can be expected in the frequency region 100-150MHz? Can only find filter diagrams up to 30-40MHz. B.regards Amund - This message is from the IEEE Product Safety Engineering Society emc-pstc discussio