1 Normalisation Wim De Kesel Codes and standards Challenges General overview

1Normalisation

Wim De Kesel

Codes and standards ChallengesGeneral overview

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Normalisation Wim De Kesel

The International Electrotechnical Commission

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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IEC family (2011-03-18)Full members 60

Associate members 21

Affiliate countries 81

IEC – Central officeGeneva

IEC – Regional centersBoston, 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

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IEC in Figure (2011-03-18)IEC Technical Committees and Subcommittees (TC/SC)

174

Working Groups (WG) 425

Project Team (PT) 221

Maintenance (MT) 543

IEC Experts 10512

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IEC SMB SG4

Set up in 2009Title:

LVDC distribution systems up to 1500V DCThe 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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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 ashWashington (2010-09)Frankfurt (2011-02)

Next meetings are planned forJapan (2011-11/12)USA (2012/04)

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IEC SMB SG4

Main topics achievedThe title

Dc linked to energy efficiency or wider? Decision:

LVDC distribution systems up to 1500V DC

The scopeThe objectivesThe deliverables

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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

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IEC SMB SG4 The objectives – applications

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

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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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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 technologyThe 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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Normalisation

IEC SMB SG4 The deliverables – technical work

technical bodies responsible for products generating, distributing and consuming energy to analyze the impact of dc within their fieldTC82 TC13 TC2

TC88 SC17B TC34

TC105 SC17D TC59

TC114 TC20 TC61

TC22 TC62

TC23 TC69

SC32B TC96

SC37A TC100

TC64 TC108

TC94

Technical bodies represented in the SG4Technical 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

There is need for participation of

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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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IEC SMB SG4 The deliverables – challenges

Distribution voltage Challenges

dc Life cycle of equipment

Fire hazard Insultion faults

Making and breaking – no ‘0’ crossing

Overcurrent

Arcing/ignition

Overvoltage

Corrosion

400V dc(+/-200V)

Electric shock – RCD

Impact on insulation characteristics of material

48V/19V dc Voltage drop in the installation

SELV in the fixed installation

Class II in fixed installation

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Global standards – global solutions

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

Documents

1 Normalisation Wim De Kesel Codes and standards Challenges General overview