Re: [PSES] UL Standards Effectivity Dates

[David Nyffenegger]

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  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
> doug...@gmail.com
> http://www.linkedin.com/in/dougp01
> -
> 
>
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Re: [PSES] UL Standards Effectivity Dates

[Richard Nute]

 

 

Hi Doug:

 

In my opinion:

 

1.  UL certifications for a particular equipment are good for the lifetime 
of the equipment, and don’t need to be updated… unless...  
2.  If the equipment is refurbished or updated, UL has a program to update 
the certification to the latest version of the original standard.

 

Stay safe, and best regards,

Rich

 

 

From: Douglas E Powell  
Sent: Thursday, May 6, 2021 12:16 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] UL Standards Effectivity Dates

 

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
doug...@gmail.com <mailto:doug...@gmail.com> 
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 


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formats), large files, etc.

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[PSES] UL Standards Effectivity Dates

[Douglas E Powell]

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
doug...@gmail.com
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 


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 
Mike Cantwell 

For policy questions, send mail to:
Jim Bacher:  
David Heald: