Jeff, It's a bit difficult to provide an exact answer since it's dependent on the design of your system. Is the system approved by an NRTL? What is the nature of the approval (i.e. listed, recognized, field investigated, etc.). Different AHJ's may interpret and accept different markings from some NRTLs as opposed to all markings from any NRTLs and it would have to be on your shoulders to convince him/her otherwise.
I suspect the inspector is drawing upon section 90-7 of the NEC and also the definition of "Listed" in article 100. My 2 Cents, Kaz Gawrzyjal [email protected] > -----Original Message----- > From: JENKINS, JEFF [SMTP:[email protected]] > Sent: Thursday, March 11, 1999 10:48 AM > To: 'emc-pstc' > Subject: NRTL requirement in the NEC? > > Hello Group, > > Has anyone heard of a requirement in the National Electrical Code that > power > supplies which are components of larger systems be approved by an NRTL? I > have an inspector telling me this, but our copy of the NEC is 20 years > old, > and I can't find it, anyway. In this case, the power supply is part of a > rack system. It was my understanding that the supply could be evaluated > as > a component of the system. Is that not true? > > Thanks, > > Jeff Jenkins > Senior Regulatory Compliance Engineer > Advanced Energy Industries, Inc. > Fort Collins, CO USA 80525 > > Opinions are my own and not necessarily shared by Advanced Energy > Industries, Inc. or its affiliates. > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
