Transcript Codes and standards Challenges General overview
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Codes and standards Challenges General overview
Wim De Kesel
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The
International Electrotechnical Commission
2 The world’s leading organization that prepares and publishes International Standards for all electrical, electronic and related technologies. Over 10 000 experts from industry, commerce, government, test and research labs, academia and consumer groups participate in IEC Standardization work.
All information is on www.iec.ch
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Wim De Kesel
The
International Electrotechnical Commission
3 Wim De Kesel
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The
International Electrotechnical Commission
IEC family (2011-03-18)
Full members Associate members Affiliate countries 60 21 81 4
IEC – Central office
Geneva
IEC – Regional centers
Boston, USA – 2 Technical Officers + 2 Assistants Singapore – 2 Technical Officers + 2 Assistants + 1 Editor + 1 Office Manager Sao Paulo, Brazil – 1 Regional Manager + 1 assistant Wim De Kesel
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IEC in Figure (2011-03-18)
IEC Technical Committees and Subcommittees (TC/SC) Working Groups (WG) Project Team (PT) Maintenance (MT) IEC Experts Wim De Kesel 174 425 221 543 10512
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IEC SMB SG4
6 Set up in 2009 Title: LVDC distribution systems up to 1500V DC The objective a global systematic approach to align and coordinate activities in many areas where LVDC is used such as green data centres, commercial buildings, electricity storage for all mobile products (with batteries), EVs etc, including all mobile products with batteries, lighting, multimedia, ICT etc. with electronic supply units.
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Wim De Kesel
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IEC SMB SG4
The SG4 had 4 meetings Twice in Stockholm (2009-12 and 2010-01) Tokyo was held as an ad hoc meeting due to little participation due to the Icelandic volcano ash Washington (2010-09) Frankfurt (2011-02) Next meetings are planned for Japan (2011-11/12) USA (2012/04) Wim De Kesel
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IEC SMB SG4
Main topics achieved The title Dc linked to energy efficiency or wider?
Decision: LVDC distribution systems up to 1500V DC The scope The objectives The deliverables Wim De Kesel
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IEC SMB SG4 The scope
To address the IEC standardization needs on systems and products to be used with dc voltages up to 1500 V and to indicate to SMB the directions for future standardization in this field. To facilitate the effective and safe use of dc to address market needs, such as. Energy efficiency Reduction of EM phenomena Reduction of the use of natural resources To inform the concerned technical bodies on the draw backs related to dc, such as. Arcing Corrosion Overvoltages
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IEC SMB SG4 The scope
To set up a road map on how to reach global systematic approach on LVDC Defining a structure for cross TC cooperation which promotes coordination of the work. Encouraging the transfer of information between product committees and horizontal committees (bidirectional). Encouraging regular TC reports on progress and planned work. To accompany the progress in the implementation of the road map. To support SMB to clear up possible overlaps between responsibilities of the related TCs and SCs To address certain topics to the advisory committees if relevant and necessary
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IEC SMB SG4 The objectives
Measuring methods Architecture of the system: 100% dc or hybrid System earthing (Grounding) Operation of equipment. Life cycle of equipment. Protective measures for hazards of LVDC distribution systems. Fire hazard: Insulation faults, making and breaking of current, overcurrent, arcing Electric shock / worker safety Overvoltage protection The impact of dc on corrosion The characteristics of insulation material insulation coordination ignition and arcing Wim De Kesel
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IEC SMB SG4 The objectives – applications
12 LVDC can be used in applications, such as: in the frame of Energy efficiency (reduction of conversion losses) green data centres in US, JP, FR, SE, … high tech buildings – continuous supply of electricity (e.g. In hospitals) commercial buildings with a lot of lighting DC-Grid / Sub-Grid easy integration of renewable energy sources (dc), such as Photovoltaic, fuel cells, wind turbines, osmotic power island energy network (including local production and storage) Easy integration of storage in the network (e.g. Batteries, flywheels) to easily accommodate existing and new applications, e.g. all mobile products (with batteries) all products having electronic supply units (lighting, multi-media equipment, ICT equipment, etc) wiring system for data transfer for charging electrical vehicles / vehicle to grid Wim De Kesel
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IEC SMB SG4 The deliverables
Analysing market and industry developments in its area, Identifying the TCs (technical committees) and SCs (subcommittees) concerned, Analysing the current level of TCs/SCs (technical committees/subcommittees) activities and identify where future activity is required, Defining a structure for the coordination of cross TC/SC work, where required, Monitoring TC/SC work to highlight any overlap of work or potential inconsistencies.
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Wim De Kesel
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IEC SMB SG4 The deliverables -
market and industry developments Analyzing market and industry developments in its area, Workshops are organized Now Washington 2011/09 Frankfurt Goals of the Frankfurt workshop: To identify the market drivers for using LVDC (market drivers are e.g. E², safety, easy to install, reliability, maintenance, cost, availability of energy, size factor, EMC) Challenges and available technology The conclusion of the workshop is to report on market needs/reality to IEC SMB SG4 The SG4 can use, during it’s further work, the report to work on the roadmap,
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IEC SMB SG4 The deliverables – technical work
Identifying the TCs (technical committees) and SCs (subcommittees) concerned, Analysing the current level of TCs/SCs (technical committees/subcommittees) activities and identify where future activity is required, Defining a structure for the coordination of cross TC/SC work, where required, Monitoring TC/SC work to highlight any overlap of work or potential inconsistencies.
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IEC SMB SG4 The deliverables – technical work
There is need for participation of technical bodies responsible for products generating, distributing and consuming energy to analyze the impact of dc within their field TC82 TC13 TC2 TC88 TC105 TC114 SC17B SC17D TC20 TC22 TC23 SC32B SC37A TC64 TC94 TC34 TC59 TC61 TC62 TC69 TC96 TC100 TC108 Technical bodies represented in the SG4 Technical bodies represented in the SG4 via liaisons technical bodies responsible for horizontal issues, to analyse the impact of dc within their field SG1 SG3 TC8 TC15 TC64 (IEC61140) TC73 TC77 TC89 TC106 TC109 TC112
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IEC SMB SG4 The deliverables – technical work – challenges
To further analyze the hazards linked to the use of dc and to find the appropriate technical body to do the standardization work (see next slide on Challenges) To make a final report on the standardization needs (Road Map) To receive reports on dc of the different technical bodies and analyze the progress and report to SMB
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Wim De Kesel
IEC SMB SG4 The deliverables – challenges
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Distribution voltage
dc
Challenges
Life cycle of equipment Fire hazard Insultion faults Making and breaking – no ‘0’ crossing Overcurrent Arcing/ignition 400V dc (+/-200V) 48V/19V dc Overvoltage Corrosion Electric shock – RCD Impact on insulation characteristics of material Voltage drop in the installation SELV in the fixed installation Class II in fixed installation Wim De Kesel
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Global standards – global solutions
19 If the market decides, dc is a solution on certain case, this will give us the opportunity to create a package of real international standards applicable in all major markets To achieve this, there is need for contributions of experts specialized in IEC type installations and NEC type installations
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Progress of the work on dc in IEC
SG4: plans to have a workshop to define the market drivers for the use of dc – September 2011 TC23 WG8: has set together general rules for dc accessories: future TR61916-2 is working on a standard for 5A-10A/400V dc plugs and SO TC64: is analysing the installation rules to define the gaps in the standard where the use of dc is not covered SC23E: is to start a discussion on protective devices for dc circuits
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Thank you
Wim De Kesel
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