RE: Group:

Donald At the risk of pre-empting others with more time to give a comprehensive answer, within Europe this type of product would fall under the General Product Safety Directive 92/59/EEC http://europa.eu.int/eur-lex/en/lif/dat/1992/en_392L0059.html Currently this is rather vague on applicable

RE: Safety Critical etc - the future

Hi Folks I agree with John W - and a single fire can (and does!) kill and injure FAR more people than a single electric shock. Additionally, a large number of products are SELV and/or battery operated where there is no shock hazard but is often a fire hazard - think of the power available from

RE: CLASS 11(DOUBLE INSULATED) 2/3-CORE CABLE

Andrew Don't try to explain that double insulation and earthing are both acceptable alternatives - only 1 persion in 10 will understand and the public won't care! Option 1 - I think knowledgeable technical people in most countries would actually prefer this for the reasons you mention in your

RE: Safety Critical etc - the future

Hi Folks Having just logged on this morning, I am somewhat surprised at some of the comments against the concept of standard definitions for safety critical, compliance critical, etc. The very fact that this thread was started in one country and has spread across national boundaries with a wide

Safety Critical etc - the future

Hi Folks We have now had this discussion and it brought out a number of useful and enlightening points, and Lauren's and Rich's summaries of the various inputs are both interesting and thought-provoking. However, I now come back to a point that I made in one of my earlier messages: Where do we

RE: Definition for Safety Critical Component

George friends As I actually said in one of my earlier messages, the metal enclosure/housing CAN be a safety critical part AND can also be a compliance critical part, so I think it SHOULD show up on the critical parts list. John Allen -Original Message- From: geor...@lexmark.com

RE: Definition for Safety Critical Component

Hi Folks I agree strongly with Oscar's comments and previous approach - Compliance critical is a far better term. It also means that you can have EN60950 compliance critical, EMC compliance critical etc, as you like without confusion. However the widespread existing use of safety critical

RE: Definition for Safety Critical Component - Safety Critical Fe atures

Hi Folks This is sent separately to my reply regarding IEC 61508 etc., as it addresses an entirely different issue. The decision as to what should be classified as a safety critical component (SCC) in the context of 60950 (etc.) should take into account the overall construction and use of the

RE: Definition for Safety Critical Component

Hi Folks A few words of warning on the context of the above Most of the definitions or descriptions for safety critical component given so far are reasonably accurate and straightforward in the context of strict compliance with IEC/EN/UL EQUIPMENT safety standards such as 60335, 60950 61010

RE: EMI filter hazards

Hi Enci Other Folks Comments: 1) The actual value of the capacitor may not the most significant factor - it is the actual voltage effect on the user that is most important, and that can be significant even if the filter meets the 0.1uF limit requirements. Even if the capacitor is smaller than

RE: EMI filter hazards

The normal answer is to fit filters with bleeder resistors across the Line-to-Neutral capacitor, which is the main culprit for shocks. In fact, I would ALWAYS advocate these - having known of several cases where people have picked up unplugged equipment, and then dropped it due to the reaction

Product Certification Approvals Specialist seeks position in So uthern UK

Hi Folks Due to possible redundancy (or enforced relocation to another part of the UK from the London and Thames Valley area) I may be available in 2-3 months, and am looking for a new and interesting position.Full CV/Resume available on request, but here is a summary: I am an experienced and

RE: Power Plugs

HI Folks Over the last few years I have had very little difficulty in buying rewireable mains plugs in high-street shops in Greece, Crete, Turkey and France - and, of course, the UK!! John Allen -Original Message- From: Rich Nute [mailto:ri...@sdd.hp.com] Sent: 07 October 2001 22:44

RE: LED Color Assignments

Joe See IEC/EN60073 for the major colour assignments - and any sector-specific standards (e.g. for medical see IEC/EN60601, or for industrial equipment see EN60204 - but no special requirements for IEC/EN60950). 60073 requirements are very similar to what you quote for the Telecordia spec.

RE: Request for a Compliance Matrix

Hi Folks I have just come across a very useful page on the NEMKO UK Ltd site, at: http://www.nemko.ltd.uk/cert/direct.htm The site is essentially advertising for NEMKO services but has tables which give thumbnail sketches of the requirements for electrical and electronic equipment approvals

RE: EU Parliament Unexpectedly Votes to Ban BDEs

Hi folks There appear to be a number of documents published this year on related subjects Try this Search Engine URL http://www3.europarl.eu.int/omk/omnsapir.so/pv2?PRG=TITREAPP=PV2LANGUE=EN; TYPEF=TITREYEAR=01Find=restrictionsFILE=BIBLIOPLAGE=1 The key word restrictions in the arguement

Military Equipment and the EU

Hi Folks Here are the URL's for the EC Commission Enterprise Websites for the lists of national implementations of the directives listed below: General site URL: European Commission Enterprise Site http://europa.eu.int/comm/enterprise/site-map.htm This leads you on the following URL's which

RE: Military Equipment and the EU

Hi Folks We have been into this subject in some detail as we supply a lot of equipment into this market. The situation varies enormously between Directives - there is certainly not a common approach in the New Approach Directives. Our current reading of the situation is LVD - No exemptions

RE: TCF for EMC directive

Hi Folks This topic has rather drifted and I cannot remember what the original point was. But, as a reminder, the following document on the UK Department of Trade and Industry might be of some use: http://www.dti.gov.uk/strd/emcps00.pdf This is the DTI guidance note on compliance with the

RE: Mains fusing - Purchase specifications

Hi Folks Kyle make a very valid and serious point in his last paragraph = re-engineering of vendors' products. CE Marking of a vendor's product is a minimum requirement - suitability for the intended application in YOUR system is at least as important. This means preparing an adquate

RE: Use of Mercury in test equipment...

Hi Folks The proposed new EU Directive is 500PC0347(02) Proposal for a Directive of the European Parliament and of the Council on the restriction of the use of certain hazardous substances in electrical and electronic equipment http://europa.eu.int/eur-lex/en/com/dat/2000/en_500PC0347_02.html

RE: New laser standards

Hi Folks WRT the IEC standard(s), as I understand it, IEC documents are - and always have been - advisory documents which only have legal force when they have been officially adopted in a particular country or region (e.g. the EU) by the relevant regulatory or standards body(ies) [ or adopted in

RE: FW: Product Safety: A Matter of Law or Litigation?

Chris Friends See 85/374/EEC, as amended by 1999/34/EC, The General Product Liability Directive http://europa.eu.int/eur-lex/en/lif/dat/1999/en_399L0034.html Regards John Allen Thales Defence Bracknell -Original Message- From: Chris Maxwell

RE: EN60950 - Changes between 1992 2000 Editions

Hi Folks Many thanks to all who responded publically and privately to my enquiry. Quite a number of comparison documents appear to exist in both the public and private domains. I will try to put together for the forum a brief summary of the various sources of information sometime in the near

EN60950 - Changes between 1992 2000 Editions

Hi Folks The requirements of the various clauses have been re-arranged between these two editions, so does anyone know of any guides or cross-references as to how the requirements have actually moved around? Thanks in advance. John Allen Thales Defence Communications Division Bracknell UK

RE: US Mains Plug/Earthing

Hi Folks From my days (about 10 years ago) of dealing with UL on this issue, I seem to remember that pluggable Listed products had to a power cord and that power cord had to have a fitted plug that was suitable and legal for the country in which the product was to be used - and that certainly

RE: Capacitor Discharge Test

Martin Having read several other contributors comments on your question, I have to say that I totally agree with them (test with the switch in both positions) for one very practical reason. I know of several occasions where personnel have lifted disconnected equipment by wrapping their arms

RE: Odd CE Marking Question

Hi Folks Hate to be a doom-bringer on this one and introduce another issue, but - to bring a note of sanity - I think the General Product Safety Directive (92/59/EEC) might actually apply to this type of kit! It applies to virtually anything where there is no sector-specific directive. However,

RE: Battery terminals isolation

Hi Folks Another possibility: try to find fully-insulated quick-release terminals which have a manually-operated lock and don't require a tool. (We had to do this recently when we had a similar problem with batteries n confined spaces in vehicles) John Allen Thales Defence Ltd Bracknell, UK

RE: Looking at leakage current specs

Hi folks I (and I believe, a number of other people) disagree with the last sentence of David's message - in so far as it is NOT merely a question of having a longer grounding pin. IEC and EN60950 - and I think also the common UL/CSA standard (but not having seen the latest edition) - allow

RE: European connectors

Hi folks Not an EN60320 device - I think this is the 16A European 2-pin plug with dual (French pin in socket + German spring-loaded side) earthing contacts to Standard Sheet VII of the old CEE 7 standard. This plug is designed to fit almost all Continental European 2-pin sockets, and provides

RE: power factor

Hi Folks I completely agree with CC. In order to avoid rating plate non-compliance with the marking requirements of safety standards, and to allow for unit variations and product upgrades everyone (well - almost everyone!) allows a good margin for error on the rated current/watts/VA markings.

RE: An old chestnut.

Enci The need to pay for standards is not confined to the UK. Virtually all countries and organisations do the same - from ANSI and UL in the USA to SA in Australia. In some countries I understand you even have to pay to be represented on the committees that prepare standards!! This money goes

EU - Proposal for Directive on Energy Efficiency Labelling of ITE Communications Equipment

Hi Folks I came across the following Commission Document 501PC0142 Amended proposal for a Regulation of the European Parliament and of the Council on a Community Energy Efficiency Labelling Programme For Office and Communication Technology Equipment =

RE: WEEE Directive

John Friends For the draft directives, see http://europa.eu.int/eur-lex/en/com/dat/2000/en_500PC0347_01.html Can't help with the date. Regards John Allen -Original Message- From: John Juhasz [mailto:jjuh...@fiberoptions.com] Sent: 06 December 2001 21:39 To: 'emc-p...@ieee.org'

FW: Power Cord Length

Hi Folks I agree with Ron, but you should note that the two standards mentioned are standards for cordsets - not for the appliances with which they are used. John Allen -Original Message- From: WELLMAN,RON (A-PaloAlto,ex1) [mailto:ron_well...@agilent.com] Sent: 06 December 2001

RE: External Power Supplies-DoC

Hi Courtland Should the external cert be enough? I think not. The LVD and EMC Directives (etc) also require you to ensure that your design and production documentation and processes are adequate. A simple external test certificate on the testing of a single unit does not ensure this. Maybe,

RE: International Equivalent of EN50116

Hi folks IEC/EN60950: 2000 Clause 5.2.2 Note 1 refers to routine electric strength tests of 1 second duration being permissable. There is also the following ECMA std which says pretty much as EN50116: ECMA-166 Information Technology Equipment - Routine Electrical Safety Testing in Production

RE: International Power Cords

Kurt friends The rationale for using a 13A fuse in cords with lower amperage ratings is simple: The fuse in the UK plug is essentially in place to take account of the use of the UK 30A/32A ring main distribution system which is uses 2.5 sq mm (or larger) conductors in the building wiring

RE: Automotive EMC Directive

Ned For more information see the Year 2000 Compliance Engineering Reference Guide - in the European edition (at least) there is a quite good and long article on this Directive. http://europa.eu.int/geninfo/query_en.htm will take you to the EU Commission Search Engine Enter 95/54/EC as the

RE: Weight Limits for Lifting

Jim In the UK there are - as far as I know - no specified regulatory limits but there are guidelines issued by the Health Safety Executive - see http://www.open.gov.uk/hse/hsehome.htm Additionally, very similar recommendations are given in the UK Ministry of Defence standard DEF 00-25 Part 3 -

RE: Ladders and work platforms

Hi Folks BSI moved from the address with the 0908 phone number quite a few years ago! The current phone number is +44-20-8996-9001, or try the website on www.bsi.org.uk Otherwise, as Lou says. John Allen Thomson Racal Defence Electronics Ltd Bracknell UK -Original Message- From: Lou

RE: Red LED's

Hi folks A comment - I would urge a little caution if IT products are being used in the industrial or medical environments since it is these where the traffic light approach is mandated in the appropriate sector standards (e.g. EN60204 EN/IEC 601 respectively). Also, correctly coloured LED's

RE: CE-mark compliance

Amund Do you mean just the CE Mark, or the CE Mark accompanied by the appropriate DoC? Here is a an example of what can happen if you accept the Mark on its own, A few years ago, in a well-publised legal case in the UK, a PC reseller had his own badge placed on the equipment. However, when

Re: [PSES] Is this common knowledge - Electrical Ratings

Fully agree with Jim! John Allen London, UK On 27 January 2012 15:39, Jim Hulbert jim.hulb...@pb.com wrote: It's probably common knowledge on THIS forum that 120-240V indicates an autoranging power supply and 120/240V indicates there is a switch setting for one or the other. I'll bet the

RE: European and North American Cordage

Peter I remember this too - I think it was an Austrian/German company (possibly Feller). However, be warned, that I also seem to remember that the cordage was dual certified only as part of extension cordsets with male and female IEC60320 couplers on the ends (e.g. as used with many PC's) - not

RE: South Korean Power System Schuko Plugs

Hi Folks A few years ago I worked for BSI Technical Help to Exporters and helped to update their publication World Wide Plugs and Sockets Survey - which I assume is still available from BSI (see www.bsi-global.com) I remember looking at the Korean standards for plugs and sockets:- Yes - they

RE: Compliance After Repairs in the Field

Hi Folks The concept of hipotting equipment in the field after repairs may theoretically be a good one - but is fraught with both practical and safety problems. For example: a) Some equipment needs special hipot equipment or equipment settings, e.g. if it has large filter capacitors on the

RE: EEC compliance for a ground based radar

The RTTE Directive, Article 1 Scope and aim, Clause 5 states: 5. This Directive shall not apply to apparatus exclusively used for activities concerning public security, defence, State security (including the economic well-being of the State in the case of activities pertaining to State security

RE: Power Supply Cord Plug for Saudi Arabia

Hi Folks Bear in mind that there are some import and certification formalities to be observed. See the atached two emails from a few months ago: John Allen Thales Bracknell, UK -Original Message- From: WELLMAN,RON (A-PaloAlto,ex1) [mailto:ron_well...@agilent.com] Sent: 31 January 2002

FW: EOTC News: New Portal Launched! - www.ConformityAssessment.o rg ( Special Edition: January - 2002)

Hi Folks FYI for those who have'nt come across this site yet - very much regulations and standards oriented, but may well not tell many of you any more than you already know!! Regards John Allen Thales Bracknell, UK -Original Message- From: EOTC News [mailto:n...@eotc.be] Sent: 31

RE: SV: Generic emissions - EN 61000-6-3

Hi Folks To answer Jim's point: LVD Annex IV Internal Production Control states: 1) Internal production control is the procedure whereby the manufacturer or his authorized representative established within the Community, who carries out the obligations laid down in point 2, ensures and

RE: Zero Crossing Question

Hi Folks Could this ON Semiconductors problem be something to do with: a) The fact that the neutral is generally not at ground potential, but has floated up due the current flowing in it? or b) The actual PSU has a filtering arrangement that is non-symmetrical wrt true ground?

RE: certification mark identification

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

RE: product modifications by the end user

Chris I would be inclined to look at the General Product Safety Directive http://europa.eu.int/eur-lex/en/lif/dat/1992/en_392L0059.html and the Product Liability Directive http://europa.eu.int/eur-lex/en/lif/dat/1999/en_399L0034.html You would probably also have to look at case law which

RE: CE marking of equipment for military facilities

Hi Folks Slight error in my previous message: In the Treaty of Rome, the possibility of exemptions for military equipment is now covered in Article 296 - not 226 as previously mentioned. Sorry for any confusion caused. John Allen --- This message is

RE: RTTE

Rich Possibly worth taking another look at my previous messages as attached. Regards John Allen Thales Bracknell -Original Message- From: richwo...@tycoint.com [mailto:richwo...@tycoint.com] Sent: 04 March 2002 16:01 To: emc-p...@majordomo.ieee.org Subject: RTTE Have any European

RE: CE marking of equipment for military facilities

Alexandru Friends Been there, done that (many times!): LVD: - No exemptions in Directive, or none found in any national legislation. EMC Directive: - No Exemption in Directive, but most EU countries (Not Holland and a couple of others) have implemented exemptions in national legislation