Rectifiers / Battery Chargers
IEC950 clause 1.1.3 explicitly excludes battery backup systems and transformers , which are not an integral part of the equipment;.. Searching the IEC data base for applicable standards for rectifiers for stationary battery systems does not provide any results. The only examples of this type of equipment I have seen claim compliance to UL1950 or EN60950, or the applicable Australian Standard Am I missing something here or is there really no applicable international standard for rectifiers for stationary battery systems and the only way around the problem to take a very liberal view of the term integral part and apply the standard for the connected equipment? -- Chris Healy Liaison Manager, Standards and Approvals Lucent Technologies email: ch...@jna.com.au JNA Telecommunications Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 AUSTRALIA Fax : +61 2 9417 3862 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Australian electricity supply
Any thing other than 415/240 will be a problem. 240/120 or 480/240 does not exist in the normal distribution system. Where these exist it is from a specific customer installation. It is my understanding that the 250V areas of Western Australia are now the same as the remainder of Australia and have been for some time. jrbar...@lexmark.com wrote: Chris, The 1996 World Electricity Supplies shows Australia as : * 50Hz +/-0.1% frequency. * 415/240V or 240/120V +/-6% for households. * 415/240V or 480/240V +/-6% for commercial. * 22kV, 11kV, or 6.6kV +/- 6% for industrial. The 1991 edition of Electric Current Abroad shows: * Albany, Kalgoorie, and Perth as nominal 250/440V. * The rest of Australia as nominal 240/415V. John Barnes Advisory Engineer Lexmark International chris.colgan%tagmclarenaudio@interlock.lexmark.com on 04/29/99 04:47:33 AM Please respond to chris.colgan%tagmclarenaudio@interlock.lexmark.com To: emc-pstc%majordomo.ieee@interlock.lexmark.com cc:(bcc: John Barnes/Lex/Lexmark) Subject: Australian electricity supply Hello group Can anyone tell me the limits of the Australian consumer mains supply voltage, ie 240V +?% -?%. I have ordered a copy of World Electricity Supplies but it hasn't arrived yet. Thanks Chris Colgan EMC Safety TAG McLaren Audio Ltd mailto:chris.col...@tagmclarenaudio.com = Authorised on 04/29/99 at 09:47:52; code 37160057E31C4EB1. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). -- Chris Healy Liaison Manager, Standards and Approvals JNA Telecommunications Limited email: ch...@jna.com.au A Lucent Technologies CompanyPh (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 AUSTRALIA Fax : +61 2 9417 3862 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Australian electricity supply
Chris, Try the following URL: http://www.standards.org.au/standardization/electrotechnology/news/1999%2D03%2D25/1999%2D03%2D25.htm There has been much discussion as to how to safely migrate to the standard IEC 230V and the article describes the current situation and proposals for the future. Colgan, Chris wrote: Hello group Can anyone tell me the limits of the Australian consumer mains supply voltage, ie 240V +?% -?%. I have ordered a copy of World Electricity Supplies but it hasn't arrived yet. Thanks Chris Colgan EMC Safety TAG McLaren Audio Ltd mailto:chris.col...@tagmclarenaudio.com = Authorised on 04/29/99 at 09:47:52; code 37160057E31C4EB1. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). -- Chris Healy Liaison Manager, Standards and Approvals JNA Telecommunications Limited email: ch...@jna.com.au A Lucent Technologies CompanyPh (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 AUSTRALIA Fax : +61 2 9417 3862 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: low-watt transformer fusing
Jeff, The normal practice is to wind a thermal protective device in the transformer. For larger transformers it is normally a resetable device but for small transformers, a one time operation type is often used. On Fri, 4 Dec 1998, JENKINS, JEFF wrote: Hi folks, I have a question about transformer fusing. I have an application that uses a 10W transformer connected across 400Vac mains. It is my understanding that this requires a fuse rated to at least 400V, which would mean 500V because that's the next larger size available. However, the smallest amperage fuse available at that voltage rating is 100mA. This by far exceeds the transformer rating. I thought about performing the EN 60742 test of loading the transformer until the primary current is 2.1 x 100 mA = 210 mA and taking thermal measurements, but I am quite sure the transformer will burn up under this large a load. The standards being used to evaluate this product are: EN 50178 UL 1012 CSA C22.2 No. 107.1 Any suggestions? Regards, Jeff Jenkins Senior Regulatory Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, CO USA 80525 Opinions are my own and not necessarily shared by Advanced Energy Industries, Inc. or its affiliates. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). Chris Healy Liaison Manager, Standards and Approvals JNA Telecommunications Limited email: ch...@jna.com.au A Lucent Technologies CompanyPh (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 AUSTRALIA Fax : +61 2 9417 3862 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Australia EMC Limits
Richard, Barry, Please note that clauses 1, 3.1, 4.1 and 4.2. are modified by the regulations. 4.2 relates to the class A/B issue. The notice can be found at http://www.aca.gov.au/legal/index.htm#Notices, under, Radiocommunications Standards (Electromagnetic Compatibility) No. 1 of 1996 Clasue 8 is the relevant clause. . Standard for information technology equipment 8. (1) Subject to subclause (2), this clause applies to the performance, in the frequency band 9 kHz to 400GHz, of a device that: (a) has any of the following as its primary function in relation to data or telecommunication messages: (i) entry; (ii) storage; (iii) display; (iv) retrieval; (iv) transmission; (vi) processing; (vii) switching; (viii) control; and (b) may be equipped with 1 or more terminal ports typically operated for information transfer; and (c) has a rated supply voltage not greater than 600 volts. (2) This clause does not apply to a device to which clause 5, 6 or 7 applies. (3) For the purposes of paragraph 162 (1) (a) of the Act, the standard for the performance of the device is the standard set out in Australian/New Zealand Standard AS/NZS 3548:1995, other than clause 1 and subclauses 3.1, 4.1 and 4.2. (4) For the purposes of the application of that Standard: (a) telecommunications equipment is class A ITE, and must comply with the class A ITE limits set out in the Standard; and (b) a device (other than telecommunications equipment) is class B ITE, and must comply with the class B ITE limits set out in the Standard, if: (i) it is intended for household use; or (ii) it has no fixed place of use; or (iii) it is a personal computer; or (iv) it is auxiliary equipment that is, or is intended to be, connected to a personal computer; and (c) any other device is class A ITE, and must comply with the class A ITE set out in the Standard. (5) Paragraph (4) (a) ceases to have effect at the end of 31 December 1997. .. On Wed, 18 Nov 1998, Barry Esmore wrote: Richard Yes it provides both Class A and Class B limits and is identical to the European IEC/CISPR 22 specification. Barry Esmore -- From: WOODS, RICHARD wo...@sensormatic.com To: 'emc-pstc' emc-p...@majordomo.ieee.org Subject: Australia EMC Limits Date: Wednesday, 18 November 1998 8:46 Does the Australian ITE emissions standard AS/NZS 3548 provide both Class A and Class B limits? - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). Chris Healy Liaison Manager, Standards and Approvals email : ch...@jna.com.au JNA Telecommunications Limited Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 Fax : +61 2 9417 3862 AUSTRALIA - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: IEC320 and Double insulation
Hans, The obvious problem with the following is in the special appliance coupler. It allows a class I product to be connected without an earth. An IEC320 double insulated coupler has only two pins and can not be connected to a Class I product. A coupler which can be connected to a class I product but not connect the earth can cause a hazard. On Mon, 21 Apr 1997 hans_mellb...@non-hp-santaclara-om4.om.hp.com wrote: Item Subject: cc:Mail Text Fellow professionals; Is there anything in the EN60950 regulations re: LVD that would prevent me from using a IEC three prong receptacle in my product connected to a special power cord with only two wires and to a class 0 plug (two prong for Europe) and the mating IEC 320 connector at the other end? (assume that my product is designed to be double insulated). Best Regards Hans Chris Healy Liaison Manager, Standards and Approvals email : ch...@jna.com.au JNA Telecommunications Limited Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 Fax : +61 2 9417 3862 AUSTRALIA
IT and other Power Syatems
The discussion on IT power systems has returned me to a subject which has caused problems for some time. In Australia TT and IT power systems are not allowed, and a PE is always provided. This makes life relatively straight forward locally, but as some of our equipment has features which rely on this situation, it causes problems when we export products where the power systems are inconsistent. A main problem is that there is a general lack of appreciation that the equipment requirements can vary depending with the power system. It is also common that a customer, often including technical types, are not even aware there are different types of power systems. Now it is possible to make most equipment double insulated and compatible with almost all requirements for the different systems, but for some types of equipment this requires a reduction in functions or features in the equipment, or versions with different implementations. There are a number of lists available on the net which list voltages and even plug types for various countries, but we really need some more details, including; PE availability (always, where required or installation specific, rarely) Power System (TN-(C, C-S, S), TT, TI other) Voltage tolerance. Is any one aware of a comprehensive listing of this nature? From the discussions re Norway, it appears that would be a useful tool. Chris Healy Liaison Manager, Standards and Approvals email : ch...@jna.com.au JNA Telecommunications Limited Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 Fax : +61 2 9417 3862 AUSTRALIA
Re: C-Tick mark
Bill, I feel a bit like a PR rep. for Standards Australia and the SMA today. Both the C-tick and the RCM are available as software and hard copy format from Standards Australia. The catch is that you need to supply a copy of an authorization to use the mark from the relevant regulator. Foreign manufacturers will need to obtain a copy if required from their Australian agent, representative etc. A representation of the C-tick is available on the SMA web site, http://www.sma.gov.au. A specification for the RCM is in; AS/NZS4417 Marking of electrical products to indicate compliance with regulators Part 1: General rules for use of the mark. On Wed, 15 Jan 1997, Bill Lyons wrote: In message pine.ult.3.95.970115070827.27600a-100...@clix.jna.com.au Chris Healy wrote: Chris, Can you advise where definitive representations of the C-tick and RCM can be obtained? Quite a number of people (myself included) would like to know what they actually look like. Art Michael amich...@connix.com is one of those who have been asking this. Regards, Bill. -- Bill Lyons - b...@lyons.demon.co.uk / w.ly...@ieee.org Chris Healy Liaison Manager, Standards and Approvals email : ch...@jna.com.au JNA Telecommunications Limited Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 Fax : +61 2 9417 3862 AUSTRALIA
Re: EMC and Safety approvals
On Thu, 9 Jan 1997 hans_mellb...@non-hp-santaclara-om4.om.hp.com wrote: Item Subject: cc:Mail Text Author: HANS MELLBERG at non-hp-santaclara,om4 Date:01/09/97 02:03 PM Please also report on the Australian C-tick mark. How do I get one, and is it good for New Zealand? Hans, As already stated, the Australian Spectrum Management Agency's web page has most of the information you require for Australia under EMC Framework. http://www.sma.gov.au. While the SMA in Australia and the Department of Commerce in New Zealand both use the C-Tick mark, the rules for using the mark are currently different. There are moves to align the requirements but this is likely to take a couple of years. The one important point in both countries is that the responsibility for placing the mark on the equipment and meeting the other requirements must be accepted by the importer or local manufacturer of the product in the country of sale. Chris Healy Liaison Manager, Standards and Approvals email : ch...@jna.com.au JNA Telecommunications Limited Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 Fax : +61 2 9417 3862 AUSTRALIA
Re: DC Power entry
On Sun, 5 Jan 1997, Robert Johnson wrote: Does anyone know any reason why the IEC 320 C-14 connector style cannot be used for DC power? Specifically, we have an application for primary power entry in the 48-70 Vdc range, typical of telecom applications, and I see no clear reason for redesign to implement a different connector. Bob Johnson I have searched all the standards and other information I have regarding this subject and not found an answer. On talking to test labs and others on the issue, it tends to make them very nervous. The main issue relates to the use of IEC320 appliance couplers (mains cables with IEC320-C14 connectors). These are so freely available and so widely used for mains connection that it is very likely that equipment using a IEC320-C14 connector will be connected to the mains at some time, at least by accident. The products I was concerned with started out as mains equipment which required a 48VDC version. The problem was solved by designing a supply which ran from 35VDC to 264VAC. This made everyone happy. After much effort, I never did get a conclusive answer to using the IEC320 for a 48V only application. Designing a wider range power was a safer(as in less solution risk as well as user risk) solution. Chris Healy Liaison Manager, Standards and Approvals email : ch...@jna.com.au JNA Telecommunications Limited Ph (direct) : +61 2 9935 5728 16 Smith St, Chatswood, NSW 2067 Fax : +61 2 9417 3862 AUSTRALIA
