Hello Charlie, The United States National Electrical Code does not require NRTL Listing for general installations, but it is a benefit. Products that are not NRTL marked are subject to the approval of the local electrical inspector. That person has the ability to accept unmarked product, but then you have to deal with their preferences and prejudices in your design. NRTL approval dramatically reduces the risk of a local inspector rejecting your equipment. Of course, you will find some local inspectors who will reject any product without NRTL marking. Although there are legal ways to avoid NRTL marking, it has essentially become a requirement based on local inspections.
In terms of NEBS, each of the US telephone companies has their own requirements based on the Telcordia NEBS standards. You need to comply with the specific requirements of your customer. http://www.nebs-faq.com/do_the_rbocs_have_requirements_over.htm You are correct that the RBOC has the right to make the final decision on any product. Ted Eckert American Power Conversion Corporation The items contained in this e-mail reflect the personal opinions of the writer and are only provided for the assistance of the reader. The writer is not speaking in an official capacity for APC nor representing APC's official position on any matter. "Charles Blackham" <charles.blackham To @sulisconsultants [email protected] .com> cc Sent by: [email protected] Subject NRTL mark required for goods shipped into USA? 06/14/2006 04:18 AM Group Client wishes to ship wirelss Telecom equipment to US customer for use at RBOC central office or commercial sites. The unit meets IEC60950-1, but does not yet have an NRTL mark. As I understand it OSHA requires electrical equipment in a place of work to be NRTL listed / field marked or similar, through this does not apply to RBOCs as they operate their own (NEBS) rules. Also, AIUI, the right to install and operate of a piece of equipment at an RBOC premise is given by the person responsible for that building - its not a "given right" based on any particular level of NEBS compliance or non-compliance. Please could someone confirm that I'm right, or correct any mis-understanding. Also - do US customs take any interest in electrical equipment arriving in the US without an NRTL mark? regards Charlie Charles Blackham Sulis Consultants Ltd - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
