I have found some use for the PAG's - I have a subscription the the on-line
PAG's.
A few of them I have found usefull, most of them I have taken the time to
look up have shed no more light than reading the standard itself. I have
gotten my monies worth out of the few that have been usefull, but
Joe:
I believe you are correct.
Check the following URL
http://www.osha-slc.gov/dts/otpca/nrtl/nrtlmrk.html, and you will find the
following:
...OSHA accepts only those products that contain the NRTL's mark and that
the NRTL has certified within its scope of recognition, which includes the
Make life easy...just set the current high enouph to cook the cow. Label on
fence could read ...Quick Delivery to Restaraunt Recommended...
- Mel
-Original Message-
From: David Gelfand [mailto:gelf...@memotec.com]
Sent: Friday, November 10, 2000 2:24 PM
To: emc-p...@majordomo.ieee.org
little reason for suspicion.
Just my humble thoughts on the matter.
Regards,
Mel Pedersen
-Original Message-
From: Grant, Tania (Tania) [mailto:tgr...@lucent.com]
Sent: Wednesday, October 25, 2000 1:07 PM
To: 'Loop, Robert'
Cc: emc-p...@majordomo.ieee.org
Subject: RE: Got another beef
Hello Peter:
According to IEC 384-14, the capacitor types suitable to bridge BASIC
INSULATION are Y2, Y3, or Y4 capacitors. According to the voltages you
specify, a Y4 cap would be suitable.
The thing to keep in mind here is clause 1.5.3 of IEC 384-14, which defined
an X capacitor as: A
are:
Diversified Technical Services
1400 Distributors Row
Harahan LA 70123
Sola/Hevi-Duty
Unit of General Signal
1101 S Wells Street
Lake Geneva W1 53147
Vicor Corp
25 Frontage Road
Andover MA 01810
Hope this helps,
Mel Pedersen
Homolgations Engineer
Ph: (605) 882-8535
mailto:mpeder...@midcom
Hello:
I believe we should consider what precedents the Medical Equipment community
has laid out hereat least as a startIEC 60601, FDA regs, etc
these address safety concerns for implanted.
Just my humble thoughts on the matter.
- Mel
-Original Message-
From: Barry Ma
not
be acceptable in all countries...
Also, I do not know that anyone (CB's at least) is testing to IEC 60950 yet?
Let me know if I'm wrong on this..
Regards,
Mel Pedersen, Midcom Inc.
mailto:mpeder...@midcom-inc.com
-Original Message-
From: helmut.hi...@alcatel.de [mailto:helmut.hi...@alcatel.de
interpretations...then you have an NRTL refusing its own mark!
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
-Original Message-
From: Scott Douglas [mailto:s_doug...@ecrm.com]
Sent: Monday
UL does have a UL1950 seminar: I took it a few years ago, and thought they
did a very good job.
- Mel
-Original Message-
From: Dick Grobner [mailto:dick.grob...@medgraph.com]
Sent: Wednesday, March 08, 2000 11:16 AM
To: 'Compliance'
Cc: 'emc-p...@ieee.org'
Subject: RE: Certification
Not if your running ±130VDC on Tip/Ring...but of course, this would be
something other than POTS.
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
-Original Message-
From
:
Limited Current (RFT-C), Limited Voltage/Restricted Access (RFT-V).
Hope this helps...I do not know the current status of HDSL with the FCC.
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
I saw this one also. It seems to me the oil companies can use something
much less toxic as a gasoline oxygenate, such as Ethanol. Ethanol is very
common in my part of the country...perhaps they don't want thier profits
being cut into by the ag industry?
Mel Pedersen
of hazardous materials so that they can be properly disposed
of...I believe most in industry are. But...
Any comments?
Thanks!
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
-Original
believe has a point here.
Just my humble observations.
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone
Is this online? - Mel
-Original Message-
From: wo...@sensormatic.com [mailto:wo...@sensormatic.com]
Sent: Wednesday, January 12, 2000 1:24 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: transient suppression
World Products, a supplier of MOVs, has a very good, free presentation on
component.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mailto:mpeder...@midcom-inc.com Fax: (605) 882-8633
-Original Message-
From: Terry Meck [mailto:tjm...@accusort.com]
Sent: Wednesday, November 03, 1999
these things into words is sometimes
a challenge for me.
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
-Original Message-
From: John Juhasz [mailto:jjuh...@fiberoptions.com
with various National Deviations on many issues.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mailto:mpeder...@midcom-inc.com Fax: (605) 882-8633
-Original Message-
From: b...@anritsu.com [mailto:b...@anritsu.com
I have a copy, and I believe I purchased it at the Document Center also.
Thier number now is: 650-591-7600
It was less than $100. I think around $50...not too expensive.
- Mel
-Original Message-
From: Robert Walch [mailto:rwa...@vectron.com]
Sent: Friday, July 30, 1999 9:07 AM
I would look into the Intrinsic Safety - Electrical Apparatus for
Potentially Explosive Atmospheres standards.
EN 50014 and EN 50020 cover these.
Factory Mutual, UL, and the Instrument Society of America also have similar
standards for this type of equipment.
Hope this helps.
Mel
very benign, however...I
would check with the above in mind just to be sure.
The above (you probably are aware...) can be found under the Introduction,
Principles of Safety Section.
Perhaps I am just too careful? One does want to be sure however.
Hope this helps,
Mel Pedersen
to lunch on this one...
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
--
From: Rich Nute[SMTP:ri...@sdd.hp.com]
Sent: Tuesday, December 01, 1998 10:49 AM
To: pe
and SELV, or PRIMARY and TNV, or PRIMARY and
SELV, ELV, and TNV would be considered zero. However, between SELV and TNV, or
ELV and TNV, one must take into account the difference in voltages between both
the SELV and TNV circuits, or ELV and TNV circuits.
See clauses 2.2.7.2 and 2.2.7.3.
Mel
?
Hope this helps Barry.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
--
From: Barry Esmore[SMTP:bar...@melbpc.org.au]
Sent: Friday, October 09, 1998 11:47 PM
To: Mel
(assuming a
maximum ringing voltage of 280Vpeak...this, I believe, would be a very safe
guess).
- Mel
--
From: Mel Pedersen[SMTP:mpeder...@midcom.anza.com]
Sent: Monday, October 12, 1998 8:42 AM
To: emc-p...@majordomo.ieee.org; 'Diaco Davari'; 'Barry Esmore'
Subject:RE
.
It is possible that your consultants are correct for your particular
case...however, it would be a very unusual case...
They are correct about one thing...EN 60950 is the correct standard.
feel free to call if you have any further questions,
Mel PedersenMidcom, Inc
they all make life a little easier and address this
issue in the same location? Oh well...
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
--
From: Lesmeister, Glenn
report or
product approvals.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
--
From: JENKINS, JEFF[SMTP:je...@ftc2.aei.com]
Sent: Tuesday, September 08, 1998 11:31 AM
will adopt this
however.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
--
From: Jim Lyons[SMTP:jly...@gtech.com]
Sent: Friday, August 28, 1998 10:09 AM
To: emc-p
to the proper specifications, or that he has not
changed the design in a manner that will invalidate your approvals. No CofC's,
no supplier audits, etc.
Hope this helps,
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder
Where would one look for the burner required by IEC 695?
Thank you all,
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
-
This message is coming from the emc-pstc discussion
meet requirements for any components (transformers, capacitors, etc.)
that might be bridging this barrier. Then you should be fine.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605) 882-8633
not enough to help you.
What I have given you on safety is a good start, I do not believe that there
are additional requirements for safety.
Either TREG or this group is fine for this question.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882
these days simply refers to clause 6
of EN 60590. Therefor, if you comply with EN 60950, then you comply with EN
41003.
Hope that this helps...
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom-inc.com Fax: (605
be the primary standard for the
type of equipment you describe.
You are correct, both FCC part 68 and part 15 would apply here also.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
to apply to
cable modems. One would want Reinforced isolation from mains to the cable
plant.
Would IEC 65 apply?
Any FCC requirements to be aware of?
Thank you for entertaining these simple questions.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone
Virginia Insulated Products
Highway 91
P.O. Box 459
Saltville, VA 24370
Phone: (540) 496-5136
UL File #: E177572; UL1950/CSA 950, IEC 950 Annex U, REINFORCED INSULATION
They are very nice fellows to work with.
Mel PedersenMidcom, Inc.
Homologations Engineer
Not sure...but maybe 600V wiring is required based on the primary protectors
which are rated at 600V.
Hope this helps,
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
%, or Routine
electrical strength testing. Other questions to ask..
Are you relying on reduced clearances (see annex R)?
Are your barrier components approved?
Are you bridging your barriers in a manner that may affect compliance?
Hope this helps,
Mel PedersenMidcom, Inc
about this topic than myself.
Hope this helps Dwight,
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
--
From: Dwight Hunnicutt[SMTP:dwight.hunnic...@vina-tech.com]
Sent
cycling test if taking this approach.
If neither of the above apply to your case, you must take the worst case CIT
rating of the two materials with common surfaces. If you have no rating, you
must assume material group III.
Hope this helps.
Mel PedersenMidcom, Inc
times. I am sure CSA or BSI would be good help also.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
--
From: WOODS, RICHARD[SMTP:wo...@sensormatic.com]
Sent: Wednesday
for the transformer?
Thank you all,
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
Forgot to forward this to newsgroup. - Mel
--
From: Mel Pedersen[SMTP:mpeder...@midcom.anza.com]
Sent: Thursday, March 19, 1998 9:18 AM
To: 'Peter E. Perkins'
Subject:RE: more Recognized Plastics Directory
Hello Peter,
Your point is well taken, however, I am
Hello All:
Is there any test lab or authority other than UL that publishes a Plastics
Recognized Component Directory? I am interested in finding ratings on
materials based on IEC standards rather than UL standards.
Thanks,
Mel PedersenMidcom, Inc.
Homologations
What is the point? - Mel
--
From: CTL[SMTP:c...@prodigy.net]
Sent: Monday, February 23, 1998 12:22 PM
To: emc-p...@ieee.org
Subject:EN50092-1:1997
the flame retardency of the
materials, the component needle flame test may be performed. You will still
need to verify that they are building the components with the same materials
that you had it tested with.
Hope this helps,
Mel PedersenMidcom, Inc.
Homologations
Hello Rich: it is a challenge to find a flame retardant material with a good
CTI rating. The flame retardant in use tend to lower CTI ratings.
- Mel
--
From: Rick Busche[SMTP:rbus...@es.com]
Sent: Thursday, February 19, 1998 12:23 PM
To: emc-p...@ieee.org
Subject:
??
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
--
From: MartinJP[SMTP:marti...@perkin-elmer.com]
Sent: Tuesday, February 17, 1998 2:51 PM
To: emc-p...@ieee.org
seminar. You don't do any hands
on testing, but they will make very good basic understanding of the standard,
walking you through the basic concepts and rational behind the requirements.
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
UL, BSI, or CSA would, I'm sure be happy to help, especially if you've done
buisiness with them. The operator at UL would be able to direct your call.
They may even help you obtain the different national deviations to IEC 950.
Hope this helps,
Mel Pedersen
!
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
concerning this issue would also be helpful.
Thank you all!
Mel Pedersen Midcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax: (605) 886-6752
). I would be glad
to fax a copy of it to you. Regarding your second question, I believe you
would need to test your notebook to IEC 950. My little HP 48G calculator has
even been tested to EN 60950 (it states that inside the front cover of the
users manual).
Just my $.02,
Mel Pedersen
of the 950 standard.
Sorry to burst your bubble, but unless the transformer is overdesigned with
regard to 950, I do not think it will pass IEC 601-1.
hope this helps,
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com
You should be able to obtain a list of the Japanese national deviations to IEC
950 from UL, CSA, BSI, or other participants in the CB scheme. I obtained a
list of the deviations from CSA. This list references IEC 950 amendments 1 2.
hope this helps, Mel Pedersen, Midcom, Inc
operating at such low power that they are
intrinsically safe?
Thank you for any input.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax:(605) 886-6752
Hope I'm not repeating myself, but I was confused as to whether this got to you
guys. Long story, see below for my two cents on this issue.
Thank you emc-pstc'ers.
--
From: Mel Pedersen[SMTP:mpeder...@midcom.anza.com]
Sent: Tuesday, June 10, 1997 9:05 AM
To: 'rob.ziel
yourself with in a
situation like this.
Good luck Chris.
The above is solely the opinion of one who does not yet know all.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax:(605) 886-6752
--
From
Mark:
I took a look in the BHS Guidebook and PNS 256 appears to be the appropriate
set of requirements. These requirements are based on IEC 65 (in case you
didn't know). Hope this helps.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8525
mpeder
...
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
mpeder...@midcom.anza.com Fax:(605) 886-6752
--
From: WOODS, RICHARD[SMTP:wo...@sensormatic.com]
Sent: Friday, April 25, 1997 12:20 PM
To: Safety; EMC
Subject:ITE
on, but that should give you a start. Let
me know if you have any more questions!
All known disclaimers apply.
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
e-mail: mpeder...@midcom.anza.com Fax: (605) 886-6752
no information on safety requirements.
Mel Pedersen, Midcom, Inc.
e-mail: mpeder...@midcom.anza.com
Disclaimers Apply
--
From: Bill Pedersen[SMTP:wpede...@gentner.com]
Sent: Wednesday, January 08, 1997 3:35 AM
To: emc-p...@ieee.org; t...@world.std.com
Subject:Korea
in.
Also, any literature on the topic?
IEC 601-1 I understand is the proper standard for Europe. Are there any
others? How harmonized are the US, Canada, Europe, Asia, etc.
Thank you all very much for your help!
Mel PedersenHomologations Engineer
Midcom, Inc
(table IV)
-6mm of creepage and clearance, or 5mm of special conditions of section 4.3.3
or 9.3.5 are met (Table II).
keep in mind that this is the 1976 publication, so I do not know if sections
and tables are consistent in topic with the latest versions of IEC 65.
Thanks a lot!
Mel Pedersen
Dear emc-pstc colleagues:
I have heard a rumor that IEC 950 amd. 4 is removing the two layer option for
supplementary insulation. (see section 2.9.4.2: Thin Sheet Material). This
leaves only the three layer option. Does any one know if this is true? Thanks
a lot for your feedback!
Mel
Dear emc-pstc'ers:
Has anyone heard of an approvals body called BEAB? If so, any information on
them would be helpful.
Thanks a lot
Mel PedersenMidcom, Inc.
Homologations Engineer Phone: (605) 882-8535
e-mail: mpeder...@midcom.anza.com Fax
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