Re: Does San Diego Require NRTL Marking to Install ITE

2002-04-12 Thread Doug McKean

You have been able to get Early Use Letters from UL, 
but I think that policy has recently changed a little. 
Contact your test engineer. 

Regards, Doug McKean 


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Measuring Instruments Directive

2002-04-12 Thread Nick Martin

I have come across some information on the web specifically to do with 
electricity and gas meters that infers  that a new directive called the 
Measuring Instruments Directive is about to come into force.

I have searched the Europa website for information on this but can not find any.

Does anyone have any info or ideas on this?

Thanks
Nick Martin




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JWDS00028

2002-04-12 Thread Jasmine TAN

Hi,

Does anyone aware of what this standard JWDS0028 is meant for ?
Where is it originate from ?


Thanks in advance!
Jasmine



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Does San Diego Require NRTL Marking to Install ITE

2002-04-12 Thread Matt Campanella

All,

Is NRTL marking a mandatory requirement to install a CMTS router in a
cable head end in San Diego?

We have a 48 VDC powered CMTS router which needs to be installed in a
cable operator’s head end in early May.  Although the basic UL
evaluation of the product has been completed without incident, marking
authorization is not expected until late in May after the line filter
vendor has approvals for the line filters.

I have heard that a letter from UL or some other NRTL indicating that
the product is under evaluation and listing the NRTL project number may
be sufficient to install the product.  If San Diego is a municipality
that requires NRTL marking to install an ITE product, can a project
notice letter or other procedure be used to allow early installation of
the ITE product?

Any assistance or information will be appreciated.

Regards,


Matt Campanella

Compliance Engineer
Motorola, Inc.
Broadband Communications Sector
3 Highwood Drive East
Tewksbury, MA 01876

matthew.campane...@motorola.com



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Output short circuit testing

2002-04-12 Thread Chris Chileshe

Hi Group,

In a previous life when I developed frequency converters, we used to perform 
short circuit tests to UL508C. 

I am developing automotive ESA's which may find use in non-automotive 
applications ( Mains - DC power source ).

Is output short circuit testing covered by some generic standard, safety or 
otherwise that one can use as a guideline for test setups, parameters and 
performance criteria? 

Thanx in advance.

- Chris Chileshe




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