Andrew -
Please clarify something for me. Is the utility
distribution star configured (WYE connected), rather than
DELTA? Or are you speaking only wrt typical distribution
within a building? (In the US, "distribution" is generally
used to reference utility power distribution, for instance,
"di
Hi Dave,
According to Annex B of ETSI document EG 201212 "Electrical safety;
Classification of interfaces for
equipment to be connected to telecommunication networks":
"48 Volt" Station Battery is to be considered as SELV where Vmax =< 57Vdc.
"60 Volt" Station Battery is to be considered as TNV
Dave,
Quote of 950: "there shall be insulation between circuitry intended to be
connected to a telecommunications network and any parts or circuitry that
will be earthed , EITHER WITHIN THE EQUIPMENT OR VIA OTHER EQUIPMENT."
The equipment of Ed might not derive its power directly from th
Hi all
Why doesn't marine equipment under 96/98/EC have a page on:
http://europa.eu.int/comm/enterprise/newapproach/standardization/harmstds/reflist.html
with more details as the other directives. Is there another place on the
Web where I can get more details about this directive ?
Best regards
Dear Group,
I am looking for CE rules (Directive, Article, ...) for maximum period of
time that the manufacturer must provide repair and service after the
equipment has been discontinued. Please advise. Thank you.
Michael Gus
Does your equipment plug into a primary (AC) circuit? Any TNV circuit
is considered a secondary circuit and if any and all power is derived
from the TNV network, the notes you referenced would not apply as a
primary circuit is not present.
Best Regards,
Dave Heald
Ed Eszlari wrote:
>
> All,
Bob:
This is not from personal experience, but from a two page ad in
the IEEE Antennas & Propagation magazine for Dec 2001 that I was
just reading:
DASY4 Dosimetric Assessment System
Schmid & Partner Engineering AG (Switzerland)
www.semcad.com
www.speag.com
i...@speag.com
It looks impressive (a
A ROM (rough order of magnitude) estimate of magnetic radiation from power
lines at 1 km yields a very small magnetic field. I used H = I/(6.28*r)
with I = V/R and r = 1 km. I assumed V = 1 Volt and R = 100 Ohms to yield
an I = 10 mA. Then H is on the order of 1 uA/m , very close to 1 pT which
Bob:
Email Kathy MacLean at Aprel she will be able to assist you. Her email is
k.macl...@aprel.com web site www.aprel.com
Regards
Kevin Keegan
KES & Associates
613-592-0820
- Original Message -
From:
To:
Sent: Thursday, January 17, 2002 12:23 PM
Subject: SAR Test Equipment
>
> We
DENSO uses the DASY 3 from http://www.speag.com/ .
I would recommend the unit,
Regards.
Ronald Chernus
Compliance Engineer, DENSO
rehel...@mmm.com on 01/17/2002 09:23:44 AM
Please respond to rehel...@mmm.com
To: emc-p...@majordomo.ieee.org
cc:(bcc: RON CHERNUS/LALAB)
Subject: SAR T
Although there is no AM broadcast below 530kHz, there are still many
services using the frequencies between 200kHz and 530kHz, the most important
of which is the aviation industry. Called NDB's, these low frequency signals
are still used for navigation globally and instrument approaches in airport
Ed,
I do not know your specific application.
Therefore - if your TNV-2 circuit is connected to a telecom network -
EN60950, 2nd ed/A4 andNorway/Sweden requires SI for the mains. (see
EN60950:1992/A4:1997, AnnexZB)
SI means clearance, creepage, DTI and dielectric strength for 230V mains.
Why don's
We are looking into SAR testing. Anyone know of manufacturers of SAR test
equipment?
Bob Heller
3M Product Safety, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
---
This message is from the IEEE EMC Society Product Safety
Technica
A 25 ms burst of noise at a high enough frequency to get out of the radio
speaker would sound like a click or pop. A momentary interruption that
would be annoying but have no significant impact on information content.
--
>From: "Chris Maxwell"
>To: ,
>Subject: RE: Company close down d
Scott,
You are correct in pointing out that the CB Scheme is geared
to IEC standards, not EN standards or any other local country
equivalent of IEC standards.
We ask our suppliers to obtain a CB Report which stipulates
compliance to IEC 60950 (whatever edition and amendments) and
the country d
touche' (That's "too-shay" for those not into French, fencing or
watching Gilligan's Island reruns)
I see your point.
I see that you are from a cellular company. What would an entire nation
of cellular phones be like? Noisy? Yes, but still functional (sort of
like my house). Even though all
Guys,
I don't think we want to forget that just one of these units will be in
use. What would a whole country full of these units do to a mains
network? I'd guess it to be very noisy indeed!
Michael Sundstrom
NOKIA
TCC Dallas / EMC
ofc: (972) 374-1462
cell: (817) 917-5021
amateur
All,
I have a DC to DC "filter" which is rated 32 - 72 VDC input and output which I am considering to be TNV-2 according to EN60950/IEC60950 2nd edition.
This filter has a metal chassis which is earthed, and it will be installed in a service access area only by qualified service personnel. It
That's exactly what we do here. Follow the OJ.
John P. Wagner
Regulatory Compliance & Mandatory Standards
AVAYA Strategic Standards.
1300 W. 120th Ave, Room B3-D16
Phone/Fax: (303) 538-4241
johnwag...@avaya.com
> --
> From: Colgan, Chris[SMTP:chris.col...@tagmclaren.com]
> Rep
Brian,
The CB Scheme is based on IEC standards, not EN standards (although in many
cases they are identical with the
exception of some national or group deviations). The engineer may be referring
to the IEC equivalent to the 01 Nov
2001 EN version of 61010.
Just because IEC publishes a standar
I would agree that whether a safety standard is published
in the OJ against the LVD should never be an issue.
I would remind everyone that the LVD states "electrical
equipment which complies with the safety provisions of
harmonized standards shall be regarded...as complying".
"FOR PURPOSES OF I
I read in !emc-pstc that Allen, John
wrote (in <999c839e7e27d41185ec00d0b7473692024cd...@norway.int.rdel.co.u
k>) about 'date of publication relevance to CB Certs', on Thu, 17 Jan
2002:
>Surely, notification in the OJ is rather irrelevant to a CB certificate -
>which is a cert to the basic IEC, n
I read in !emc-pstc that John Woodgate wrote (in
) about 'EN60529', on Thu, 3 Jan
2002:
>I read in !emc-pstc that Crabb, John
>wrote (in cr.com>) about 'EN60529', on Thu, 3 Jan 2002:
>>John, I have forwarded this information to the chairman of
>>BSI committee EPL/74 (which deals with EN60950),
British Standards manages to confuse the issue even more by calling the
standard "BS EN 61000-3-2:1995 Incorporating Amendments Nos 1, 2, 3 and 4.
I've decided I'm going to put "EN61000-3-2:1995 + A1:1998 + A2:1998 +
A14:2000" on the DoC because that's what the OJ seems to want.
Chris Colgan
Co
It sounds as though...
The instantaneous emissions aren't as high as an EFT burst or other type
of transient phenomenon. So, this product causing a hard upset of
electronics is probably not a problem.
When the conducted emissions limits were set, they were mostly dealing
with whether the prod
I concur with you John. A CB Certificate is issued on the basis of testing
to IEC standards. When I apply to a test lab for a product to be tested, I
ask for additional testing for national differences to IEC60065 as required.
What I end up with is a CB Certificate that states "Tested and found
Terry
Then nominal EU phase to phase voltage is 400VAC with a +6/-10% Tolerance.
Distribution is Three Phase Star, Earthed Neutral.
Some countries are still a little behind in the voltage harmonization e.g..
Belgium is a nominal 380VAC. Other have not
changed as they fall within the tolerance
Gary
I believe that the Ex mark is the "Epsilon X" Mark signifying compliance to
the new ATEX (from the French phrase "atmospheres explosible") Directive,
94/9/EC. It is used on products designed for use in explosive atmospheres.
Chris Colgan
Compliance Engineer
TAG McLaren Audio Ltd
The Summit
It is associated with electrical equipment for explosive atmospheres in
Europe.
It is called for in both the old approach (76/117/EEC) and new approach
(94/9/EC) directives.
http://europa.eu.int/comm/enterprise/atex/
Bill Lawrence
Factory Mutual Research
-Original Message-
From: owner-
Gary
The Ex inside a hexagon refers to hazardous area equipment ( explosive
atmospheres).
The following website (no connection) may a good starting point.
WWW.Epsilon-ltd.com
Andy.
> -Original Message-
> From: Gary McInturff [SMTP:gary.mcintu...@worldwidepackets.com]
> Sent: 17 Januar
Gary
That sounds like a certification mark for Hazardous/Flammable atmospherem
equipment - now covered by the ATEX Directive in Europe and similar
legislation and standards elsewhere (e.g in the US NEC).
It is always qualified by additional characters denoting the type of
protection incorporated
Hi Folks
(and I have read some of the subsequent posts on this subject)
Surely, notification in the OJ is rather irrelevant to a CB certificate -
which is a cert to the basic IEC, not the EN, and is for worldwide use!
Therefore if the IEC CB has already adopted that underlying latest IEC
61010-1
Hello Gary,
The epsilon-x mark shows compliance with the EU ATEX directive 94/9/EC or
European certificate that shows compliance with the older EU directives
76/117/EEC + 79/196/EEC for surface industries or 82/130/EEC for mines
susceptible to firedamp.
You will find more information about the AT
I read in !emc-pstc that am...@westin-emission.no wrote (in ) about 'Company close down
due to EMC phenomena', on Wed, 16 Jan 2002:
>Questions:
>1. Is it possible to have different approaches within EU ?
No.
>2. Since PLC/PLT is "quite new" technology and since we do not have any EU
>product stan
Does anybody recognize an Ex inside of a hexagon? Think it might be
French. Its on a Capri part. Not even one of mine but trying to do a good dead
for one of our suppliers.
Thanks in advance
Gary
---
This message is from the IEEE E
Close down? That's alarming. And probably not what needs to happen.
Power Line communication is controversial at the moment, especially with trials
underway in the Netherlands and some
deployments in Germany which generated high levels of RFI. (And appear to have
been exceedingly vulnerable to
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