have been conducted on the appliance then such a hazard
would have been identified.
Regards,
Duncan.
Duncan Hobbs, Senior Compliance Engineer
Xyratex Product Compliance Lab.
Havant, Hants, U.K.
tel: 02392 496444
fax: 02392 496014
duncan_ho...@xyratex.com
From: marko.radoji
and component
mounting.
I believe that this is a Cyanoacrylate adhesive. When used with the
activator it sets very quickly - ideal when you are attaching lots of
thermocouples.
Hope this helps..
Regards,
Duncan.
Duncan Hobbs, Senior Compliance Engineer
Xyratex Product Compliance Lab.
Havant
,
Duncan.
Duncan Hobbs, Senior Compliance Engineer
Xyratex Product Compliance Lab.
Havant, Hants, U.K.
tel: 02392 496444
fax: 02392 496014
duncan_ho...@xyratex.com
From: Ron Pickard [mailto:rpick...@hypercom.com]
Sent: 15 April 2003 21:22
To: rpick...@hypercom.com
Cc: emc-p
be
installed in a factory (i.e. not consumer equipment)
Many thanks in advance,
Duncan.
Duncan Hobbs, Senior Compliance Engineer
Xyratex Product Compliance Lab.
Havant, Hants, U.K.
02392 496444
duncan_ho...@xyratex.com
This message is from the IEEE EMC Society Product
Duncan Hobbs, Senior Compliance Engineer
Xyratex Product Compliance Lab.
Havant, Hants, U.K.
02392 496444
duncan_ho...@xyratex.com
From: Duncan Hobbs
Sent: 17 December 2002 10:17
To: 'emc-p...@majordomo.ieee.org'
Subject: Antenna Mast Automation
Group,
We are trying to find
, +VI/O, +12V, -12V, +3.3Vaux). The expansion board may
optionally draw all this power from either the +5V or +3.3V rail.
Is this all the spec has to say on power or is there more detail on load
balancing between supply rails etc?
Many thanks in advance,
Duncan.
Duncan Hobbs, Senior
may be able to
obtain these forms?
Many thanks in advance,
Duncan.
Duncan Hobbs, Senior Compliance Engineer
Xyratex Product Compliance Lab.
Havant, Hants, U.K.
02392 496444
duncan_ho...@uk.xyratex.com
---
This message is from the IEEE EMC Society
Group,
Has anyone ever used a combination of metals not listed in annex J of
EN60950 for a protective earthing connection? If so can anyone suggest a decent
source of information on electrochemical potentials for various materials.
The particular materials in question are tin plated copper
Group,
I believe this is what we paid for our Agilent datalogger:
34970A Data aquisition/switch unit with Benchlink software £949 ($1518)
34901A 20 Channel mux module£290 ($465)
so a complete 60 channel thermocouple thermometer costs £1819 ($2910)!
Yes it does sound too good to be true but we
Group,
Does anyone have a list of all the differences between EN60950:1992 and
EN60950:2000? If so may I have a copy.
Many thanks in advance
Duncan Hobbs.
--
The contents of this communication are confidential
to) then why is this National requirement specific to Spain and
not all other continental countries that use this same plug/socket and power
system?
Many thanks,
Duncan. Hobbs.
--
The contents of this communication are confidential
Group,
Does anyone know how the inrush capability of switches is specified? Is
there a particular standard for how inrush (with regard to switches not EMC) is
specified?
Any ideas or comments would be most helpful.
Regards
Duncan.
be greatly recieved.
Many thanks in advance,
Duncan Hobbs
--
The contents of this communication are confidential to the normal user of
the email address to which it was sent. If you have received this email
in error, any use
anyone in the group have a contact in Seagate and Mitsumi who may be able
to assist in matters of regulatory compliance?
Many thanks in advance,
Duncan Hobbs, Product Safety Engineer
Snell and Wilcox Ltd.
--
The contents
.
Duncan Hobbs.
--
The contents of this communication are confidential to the normal user of
the email address to which it was sent. If you have received this email
in error, any use, dissemination, forwarding, printing
.
Many thanks in advance,
Duncan Hobbs, Product Safety Engineer
Snell and Wilcox Ltd.
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc
recieved.
Regards,
Duncan Hobbs, Product Safety Engineer
Snell and Wilcox Ltd.
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
To cancel your subscription, send mail to:
majord
I know that most safety standards require the equipment to remain safe under
single fault conditions. In this case the single fault I would consider would be
that of failure of the thermostat (i.e short circuited)
The first thing to consider would be, can the failure of this device allow the
where I can
obtain such a fuse?
Many thanks is advance,
Duncan Hobbs.
---
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
To cancel your subscription, send mail to:
majord...@ieee.org
Peter and Group,
Try a company called Genesys Telecom. I know that they produce such
documents called 'Regulatory Factfiles' and that they cover all of the items
mentioned in your note as well as EMC and safety info.
Their website is at www.gentel.co.uk, the fact files are about £15 each
Dan,Rich Dick,Dirk and group.
I would also aggree. years ago I served an apprenticeship with a major computer
manufacturer and for my final year and a half chose to work in product safety.
At the end of the apprenticeship I decided that I wanted to go to university and
get a degree and I set out
Scott and group,
I agree this is a well thought out site. I'm doing a similar exercise at the
moment and trying to get hold of all of the approval certificates for components
within one of our products. This can be hard work owing to the variation in the
quality and quantity of information
Chris,
Whilst considering a 'standard office environment' it is worth considering
how mobile the equipment is and the variety of environments in which it could be
used. Although most P.C.'s sit on a desk in a heated office, condensation is not
really a problem, however, such equipment is not
Group,
In one of our products we use a certified laser transmitter. The unit is
class 1, is internally protected so it cannot exceed this limit and it has an
FDA ascession number i.e. a report on the product is filed with the FDA.
The other day whilst searching the FDA website I found laser
Group,
I am trying to construct a simple earth leakage test circuit as in Annex D
of EN60950. I am finding it impossible to find a capacitor for Cs (0.22uF) as I
cannot find one that is the required value, tolerence and voltage rating.
Am I missing somthing here? Even if I use a network of
Group,
Forgive me if this subject has been covered before but I am finding it very
hard to determine the EXACT regulatory requirements for the states. As far as I
understand it is the responsibility of the installer or business using
electrical equipment to ensure that it satisfies the
Group,
What safety and EMC standards would I have to consider for a piece of
equipment initially intended for use in a TV studio, but that is requested to be
able to be used in a helecopter or plane? I am also interested in what other
requirements and standards there may be for shock and
Group,
Thanks for your thoughts on this.
The main problem is not the power supply as this derives its power from the
backplane and so it is not powered up if removed. The main problem is the other
slots where the cumulative power from all of the redundant power supplies is
avaialable and this is
Group,
Has anyone had any experience of problems with energy hazards on modular
products and may be able to give some advice. The problem is that some of our
equipment uses the compact PCI standard for interconnection. One of the main
problems with the compact PCI standard is that it uses
I have a product that has an LCD display with an Inverter that operates at
100Khz 2KV and I believe is capable of supplying 6.5mA The question is does it
require a fire enclosure?
If it does what are the requirements for the flamability of the screen and any
plastic protective covers fitted to
Paul,
I know that EN60950 specifies that the minimum flamability requirement for
plastic 'decorative covers' external to the fire enclosure is HB, and I am sure
that UL1950 requirements are the same.
The relevant section of the standard is section 4.4.4 and this reads as follows:
Brian,
In the past I have had to do similar tests on large test equipment racks. In
this case I used a large power supply to achieve the required current and used a
seperate milliohmeter to measure the resistance. This method seemed to satisfy
the witness testers when they came to see the
I have two products, one that incorperates an LED transmitter of 1330nm
wavelength and optical output of -14dBm and one that uses a class 1 laser
transmitter. Both are pulsed duration.
As far as I understand, the LED transmitter falls outside the IEC825
requirements as it is below the 1mW limit
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