Dear Peter,
Thanks for the feedback. For one product we went through TUV and
found that for everything they follow UL standards. They demand UL file
number for all the critical parts. In that way we felt UL is the master and
leading in defining the standard hence continuing with UL.
Sincerely                                                         Â
SCM
Microsystems (India) Pvt. Ltd.
K. Balasubramanian                 Â
                       Modules 0506,
0507 & 0508, D – Block,
Manager – Hardware    Â
                                   South
Wing,
TIDEL Park,
Tel : +91 44 42931391Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
                      #4, Rajiv
Gandhi Road,(formerly Canal Bank Road)
Fax :+91 44
22540029Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Taramani,
Chennai – 600113. India
E-mail:kbalasubraman...@scmmicro.co.in         Web :
http://scmmicro.com
‘This email and any attachment may contain confidential information and are
intended solely for the use of the named recipient(s). If you have received
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peter merguerian
<pmerguerian2001@
yahoo.com> To
emc-p...@ieee.org,
11/07/2008 11:03 kbalasubraman...@scmmicro.co.in
AM cc
"EMC-PSTC@LISTSERV.IEEE.ORG"
<EMC-PSTC@LISTSERV.IEEE.ORG>
Please respond to Subject
pmerguerian2001@y Re: UL 60950 preliminary inspection
ahoo.com / design review
Dear Mr Balasubramanian,
Looks like you need to try and use another National Recognized Test
Laboratory (NRTL). Have you tried TUV Rheinland - the North American
office is NRTL accredited by OSHA and Standards Council of Canada - Out of
19 countries in Asia, TUV Rheinland has 8 offices in India with test
laboratory capabilities for world markets.
http://www.tuv.com/in/en/regional_offices.html
Best Regards,
Peter Merguerian
--- On Thu, 11/6/08, kbalasubraman...@scmmicro.co.in
<kbalasubraman...@scmmicro.co.in> wrote:
From: kbalasubraman...@scmmicro.co.in <kbalasubraman...@scmmicro.co.in>
Subject: UL 60950 preliminary inspection / design review
To: emc-p...@ieee.org
Cc: "EMC-PSTC@LISTSERV.IEEE.ORG" <EMC-PSTC@LISTSERV.IEEE.ORG>
Date: Thursday, November 6, 2008, 6:45 AM
Dear Experts,
We submit most of products to UL for 60950 listing. Almost 95 % of
our products are UL listed. We find it very difficult to complete the
cycle. Many times we come across situations that the parts used are not
meeting UL spec. and a redesign is inevitable. This further complicates
the
things and delay the cycle. We look for some consultants who can help us
by
participating from the design review stage itself.
The most sad part is many times we submit the product to UL for
preliminary inspection during the proto stage and UL (India office
located
at Bangalore) gives pass report. Then we go for pilot production
(simultaneously we initiate procurement for mass production also) and
submit the pilot samples to the same UL office for final certification.
At
this time UL is coming with new findings and ultimately product fails to
get UL listing. All the times I am sure that there is no difference
between
the proto samples and pilot samples. Mostly some resistor values get
changed between proto and pilot.
It is not clear to me whether it is the competence issue at UL
India
or UL is greedy in money making. I look for advise from the experts of
this
forum. I have been told that UL Taiwan is more proficient in 60950
standard. Is this true?
Sincerely
SCM
Microsystems (India) Pvt. Ltd.
K. Balasubramanian
Modules 0506,
0507 & 0508, D – Block,
Manager – Hardware
South
Wing,
TIDEL Park,
Tel : +91 44 42931391
#4, Rajiv
Gandhi Road,(formerly Canal Bank Road)
Fax :+91 44
22540029
Taramani,
Chennai – 600113. India
E-mail:kbalasubraman...@scmmicro.co.in Web :
http://scmmicro.com
‘This email and any attachment may contain confidential information and
are
intended solely for the use of the named recipient(s). If you have
received
this information in error, you are prohibited from reading, copying,
distributing and using the information. If you are not a named addressee
or
otherwise an intended recipient you are requested to immediately notify
the
sender and to delete this email and all attachments from your system.’
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