It would seem that this is one issue of signiicant difference between UL913
and ATEX - UL913 recommends constructing a portable device out of a non
sparking material such as plastic or brass (clause 14.1). Here UL is
addressing a valid concern about the risk of ignition caused by the unit
I have heard of several people fighting a ticket with claims of the radar gun
not working or being used right. In all cases they lost (all people I know). I
wish you luck and please let us know how it turned out.
Looking at it from their side, if a Judge ruled that the radar (or laser) guns
In support of Doug's comments, check this out
I wonder what kind of disposal statements are with these batteries?
I bet you they are revising this now :)
http:www.support.dell.com/battery/
Regards,
Regan Arndt
Sr. Engineer
TUV Rheinland of North America, Inc.
Chris Maxwell wrote
There is no such thing as the Bovine/Equine Equipotential Directive.
No, there isn't, but the Low Voltage Directive (73/23/EEC) in its principle
protection requirements in Article 2 says:-
The member states shall take all appropriate measures to ensure that
electrical
Short range device? Look at ETSI 300-683, EMC Std for Short Range Devices -
operating freq. 9kHz to 25GHz. Chapter 8 deals with emissions.
Hope this helps!
-Original Message-
From: wo...@sensormatic.com [mailto:wo...@sensormatic.com]
Sent: Wednesday, November 15, 2000 3:10 PM
To:
All,
There is no such thing as the Bovine/Equine Equipotential Directive.
However, all this talk about Stray Voltage is very much on the minds of
farmers. I replied to Gert offline on this subject because I thought nobody
else had any interest. But the list of serious and not-so-serious
Hello group -
I'm looking for help regarding the safety of equipment for use in hazardous
locations, especially intrisically safe systems.
Specifically, I have questions regarding clause 7.3.2 of standard EN
50014:1997, concerning electrostatic charges of enclosures of plastic
materials.
If
I would like to add that I (my employer) also have used Tania's #1
suggestion with regards to a similar device. Has worked out well over the
past years. Responsibility of compliance stays within the manufacturer's
facility and not ours!
-Original Message-
From: Gary McInturff
Hi Jeffrey:
As far as the EPA is concerned, Li-ion batteries are not considered as
hazardous material. Remember, the EPA is NOT concerned with the safety of
your customer, only the effects on the environment. The Battery Management
Act is Public Law 104-142, 104th Congress, and there is an EPA
Peter:
I acted as a professional witness in a similar claim that clocked a
neighbour doing 110 in an 80 Km zone. The neibour lost.
I attempted to prove there was the possibility of EMI from a local 50Kw
broadcast transmitter which was less than 1/4 mile away. Since the reading
taken is a gated
A few months ago, I posted a design for a reference source which emitted
harmonics of 250 MHz from 1 to 10 GHz. Since then I have received inquiries
as to whether it will be made commercially available. Unfortunately, plans
to do so have not materialized.
While the description given should
I am going to ask my previous question in a different (and, hopefully,
improved) way. Assume I have an ITE device that is an unintentional radiator
(i.e., it is not a transmitter). Also assume the device has spurious
emissions above 1 GHz that may not be insignificant. In order to comply with
the
Hi Peter,
I am by no means an expert on this subject but I believe they use a tuning
fork
to calibrate the standard radar guns (the ones based on Doppler shift) so
you
may have asked to see the cal cert for the tuning fork. I think the police
usually calibrate there standard guns daily and if
Just another vote for Tania's plan outlined below. I have used that
in the past, and used path 1. Including I changed potential vendors, when
the first guy didn't want to work with me. I paid the investigation fee's,
and he paid the follow-up just as Tania described. I'm sure the cost
Paul,
Would it be possible for you or anybody else to summarize main points of
modifications made in the new edition of IEC61010-1?
Regards,
Barry
--
On Wed, 15 November 2000, O'Shaughnessy, Paul wrote:
Dear List,
I've received word of an Edition 2 for IEC 61010-1 which was
Peter,
I suggest you check out the National Motorists Association web site at
www.motorists.com. In case you have not heard of this organization before
they are a National Motorists rights group. They were largely responsible
for the repeal of the National 55 mph speed limit. They have lots of
-Original Message-
From: Art Michael [mailto:amich...@connix.com]
Sent: Tuesday, November 14, 2000 9:03 PM
To: CE-test - Ing. Gert Gremmen - ce-marking and more...
Cc: Emc-Pstc@Ieee. Org
Subject: Re: safe voltage limits for cattle ( cows horses etc)
Hello Gert,
After watching the
Dear All,
Yes, I did get a speeding ticket today! I am not sure if I was speeding or
not - I do not have my eyes on the speedometer all the time! I asked the
policewoman to show me the calibration certificate on her speed measuring
gun. She did not know what I was talking about! I inspected the
John,
Most of the time these batteries are not replaceable (ie they are soldered
to the board) and servicing of the board is not likely in the field. In
this case, you need to provide service instructions with the battery
statement. Now, if servicing is done at your factory, it simply means that
Please be advised that the emission limit figures you quote in your
referenced e-mail are _not_ for ClassA Grp2 equipment, but for ClassA, Grp1
equipment. CISPR 11 also specifies 10m distance for this 40dB level.
---
This message is from the IEEE EMC
Hello Richard,
Is the device a blue tooth using wireless radiation to communicate with other
devices, if yes the device is a subjet for the RTTE directive.
You may use the ETSI standards:
EN 301 489-3 V1.2.1 (2000-08)
Electromagnetic compatibility and Radio spectrum Matters (ERM);
Hello Bruce and EMC-ESPC Group,
The latest draft on next edition of (EN/) IEC 61800-3 is using the CISPR 11
Class A group 2 limits for power drive systems to be used in Second
environment = Industrial use.
The radiated emission limits are 40 dB from 30 - 230 MHz and 50 dB from 230 -
1000 MHz
I am presently faced with a similar concren on a much smaller 50VA switching
transformer that I have told the vendor to get construction only recognition
(category XORU2).
My decision is based on how the UL Engineer describes the transformer in MY
report.
If he calls out the mfg P/N and maybe
Chris,
Per your description, your Current Transformer is in a safety circuit. The
fact that normally you do not have high voltages on the primary side does
not cut it. (Besides, what is high voltage???) You have several choices
(in order of what my preference would be, and money being no
Question - What is the simplest, least expensive, way to define an isolation
transformer used in a UL508 (or similar standard) recognized product? The
transformer is a custom design made by a magnetics vendor for use in our
industrial products.
The product is manufactured under a UL
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