Hi Doug, I assume what you are really asking about is an NRTL listing to a UL standard. The NRTL listing certifies that the original equipment met the applicable standard when new as of the date of manufacture. The NRTL/certification makes no representation as to the state of the equipment after it leaves the factory as the NRTL has no control of repair/maintenance/refurbishing. The exception is refurbishing done in a facility specifically certified by the NRTL for refurbishing. Therefore whatever happens with equipment repair/maintenance/relocation/ownership change etc is irrelevant to the original certification. Typically AHJs and OSHA will accept the original certification/label for the life of the equipment.
The NRTL will work with the manufacturer to determine what standard needs to be applied to the current product being manufactured and whether/when a recertification is required to a newer standard. Typically a product can be manufactured and maintain certification under the standard it was originally certified to provided the product itself is not changed. Anytime the product is revised it opens the door for the NRTL to recertify it to the current standard. If there is a question or concern with the safety/certification of installed equipment regardless of age or condition, the owner can have the equipment "field inspected" and certified/labeled by an NRTL or other agency accepted by an AHJ. The NRTL would determine the applicable current standard(s) to apply at the time when inspecting the equipment on site. The certification is specific and applicable to only the equipment physically inspected. Typically the field label is only good for the location the equipment is installed at when inspected. The equipment need not have been originally NRTL certified at the time of manufacturer for field inspection but that typically makes for a smoother field inspection. -Dave On Thu, May 6, 2021 at 3:16 PM Douglas E Powell <[email protected]> wrote: > Hello all, > > I would like to understand the use of effectivity dates, specifically for > UL standards, when dealing with rather large leased equipment used in > association with an energy production facility. The plan is that an > original manufacturer will build, install, monitor, and maintain the > equipment as a lease and not for sale. The idea is that the equipment is > put into service with the required certifications of the day. > > If at some later time, possibly a few years later, the equipment is taken > out of service, moved to a new location to be put into service once again > (the ownership has not changed) and if in that interim period the > applicable product standards have been revised, effectivity dates > established, and the new edition of the standard is mandatory for new > products, is it necessary to re-certify that equipment? > > In my scenario that equipment may or may not involve refurbishing or > updating when it is relocated. > > Thanks, Doug > > -- > > Douglas E Powell > [email protected] > http://www.linkedin.com/in/dougp01 > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to < > [email protected]> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in > well-used formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) <http://www.ieee-pses.org/list.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]> > - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
