RE: AC outlet max current

.23(a)? Why would plug-and-cord loads be treated separately if they could be classified as continuous or noncontinuous anyway? Best regards, JP Hare From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Robert Johnson Sent: Monday, May 05, 2003 10:48 AM To: &#x

RE: AC outlet max current

Hi Rocky, Article 210 of the NEC lists the requirements for branch circuits and associated receptacles. Table 210.21(B)(2) shows the receptacle load limits and section 210.23 discusses the permissible loads in more detail. On a related topic, I recently had a discussion with a colleague regardi

RE: Acoustic noise calculations for multiple shelves

Hi Alan, Your confusion over 3 and 6dB is understandable. Sometimes "sound intensity" and "sound pressure" are improperly used interchangeably. Intensity is proportional to the square of pressure. If the intensity is doubled, one would say that there is a 3dB increase in sound intensity; 10*lo

RE: Acoustic noise calculations for multiple shelves

Hi Mark, If you understand the fact that adding two sources of the same level gives you a 3dB increase, you can do some quick addition. Let's say one of your small chassis has a noise level of 75dB. If you add a second one you would get a total noise level of 78dB. (Of course this does not con

RE: Circuit pack ESD drain

Hey Dave, You might try looking at GR-78-CORE. I know it has guidance for ESD requirements on circuit packs and stand-alone assemblies. Later, Paul Hare -Original Message- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of David Heald Sent: T

RE: FCC Authorization (Form 731) for ITE class B ; Do I need a TCB ?

ssage- From: Barbara Judge [mailto:bju...@ccsemc.com] Sent: Monday, July 01, 2002 7:18 PM To: 'JP Hare'; Pierre SELVA; Forum Safety-emc Subject: RE: FCC Authorization (Form 731) for ITE class B ; Do I need a TCB ? Paul, Forgive me, but you are incorrect in your description of the ser

RE: FCC Authorization (Form 731) for ITE class B ; Do I need a TCB ?

Dear Selva, Can you tell us a little more about your product? You mention that it is ITE class B. Does it have a transmitter section? If not, then you should be aware that class B IT equipment falls under the Declaration of Conformity rules (See 47 CFR 15.19, I think...) There is no need to c

RE: Shielded DC Power Cable Vendors

Hi Dan, I saw your previous post and was wondering if it would receive any attention. As I recall, you are trying to shield a 200A DC power cord. I am assuming you want a shielded cable because of radiated EMI problems. Usually shielded power cords are not theoretically sound solutions for EMI