Hi Pete:
You said: > In the North American > market the approval of a Nationally Recognized Test > Laboratory (NRTL) is required for any equipment attached to > the power grid. While in a practical sense NRTL is "required" for equipment attached the power grid, such a criterion is not true in the regulatory sense. Safety certification of electrical products by a NRTL is required by OSHA for electrical products used by employees in the workplace. Safety certification of electrical products is also required by local electrical codes. Local electrical code authorities decide which certification houses are acceptable to them, which may or may not include NRTLs. Such certification requirements may or may not include electrical products attached to the power grid. For example, laptop computers do not attach to the power grid, although their external power supplies do attach to the power grid. OSHA rules do not require a laptop computer to be certified by a NRTL, but the external power supply must be certified by a NRTL. Local electrical codes may or may not require safety certification of low-voltage electrical products. As a general rule, certification by a NRTL satisfies both OSHA and local electrical codes. Best regards, Rich - 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 ______________________________________________________________________
