OSHA only governs safety in the work place and has no authority over residential installations. The requirements for consumer products come >from the local electrical codes. The vast majority of electrical codes are based on NFPA 70, the National Electrical Code (NEC). Strictly speaking, the NEC does not require equipment to be Listed. However, equipment that is not listed is subject to review by the local inspector. The NEC states "It is the intent of this Code that factory-installed internal wiring or the construction of equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage, if the equipment has been listed by a qualified electrical testing laboratory...." Practically speaking, local inspectors don't want to review the construction of every device, so they insist on the use of only Listed products.
Any modifications may be considered to violate the Listing of a product. Modifications to the enclosure would definitely violate the Listing. These modifications may not touch the electrical circuits, but there may still be changes affecting safety. The modified enclosure may no longer properly serve as a fire enclosure. It may not properly restrict accessibility to electrical, thermal or mechanical hazards. Spacings may be unacceptably reduced. Flammable materials may be introduced. In my opinion, the supplier needs to contract with an NRTL to get their modified product Listed. Ted Eckert American Power Conversion/MGE http://www.apc.com/ 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-MGE or Schneider Electric. The speaker does not represent APC-MGE's or Schneider Electric's official position on any matter. Christine Rodham <chrisrodham@yaho o.com> To Sent by: [email protected] [email protected] cc Subject 07/13/2007 06:45 NRTL Listing for Home Use Products AM Hi List Members, While I know not all products require a NRTL ( UL, MET, TUV, etc ) mark, I understood that products used for home use ( 120V) in the USA required a NRTL listing. Is this correct? Isn't this an OSHA requirement? We are looking at buying a product that would be used in the home from a supplier. The supplier gets the product >from an OEM, modifies the chassis / enclosure, and then sells it to us. Their modified chassis has no regulatory marks on it but they think.......that since the OEM listed the product that they are ok marketing it...even though they made changes. ( No electrical changes ) We are not buying it to this but need to specifically know what is required by law Can anybody shed any light on this......particularly who is the legal authority in the USA? ( OSHA...right? ) Thank you! Christine Rodham Food fight? Enjoy some healthy debate in the Yahoo! Answers Food & Drink Q&A. - ---------------------------------------------------------------- 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 ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
