AWGkcmil size wire and cables in IEC 60228 - PowerPoint PPT Presentation

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AWGkcmil size wire and cables in IEC 60228

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    1. AWG/kcmil size wire and cables in IEC 60228 CANENA March , 2005

    3. History An international ad-hoc Task Force (Canada, Mexico and US industry and NRTLs) was set up by NEMA to hammer technical and tactical details. Liaisoning : IEEE, UL, ICEA, ASTM, CSA, ANCE, USNC, CSC, etc. ASTM tables were aligned with IEC 60228

    4. History Submittal options: in some countries clause to get the tables in the printed standard and then negotiate an EDR Annex E of Part 2 IEC directives - size. Not sure how powerful a tool this could be. EDR request. Not acceptable in the CDV phase, need to wait the maintenance cycle. New and unknown tool.

    5. History Tactical option considered Create a CANENA 60228 and get IEC to refer to it as a normative reference. Not clear if possible since IEC 60228 exists already and the CANENA IEC agreement targets CANENA areas not covered by IEC. Time was also a factor.

    6. History At CDV stage: Mexico and US voted negative with the AWG system proposal as comment Canada vote affirmative with in certain countries request

    7. History CDV ballot was successful. 2 negative votes N. American countries comments were noted but not really addressed. Canadas request initially not even noted. After negotiations a note was included in the Foreword with a small conversion table

    8. History FDIS ballot All North American countries voted again negative Ballot passed (only 3 negative votes) Maintenance phase established for 2010

    9. History TC 20 meeting, Berlin Nov.2004 Two documents essentially raising barriers for AWG inclusion were presented. A study group was established to discuss the two documents. It is chaired by the most vocal opponent of the proposal.

    10. Future actions Submit the EDR and support it at all levels Learn form previous EDR submittals: Define infrastructure linked to AWG sizing system Support relevant market share argument with data Ensure the ballot limits the voting options to those defined by the EDR policy Try to find allies before the vote Keep SMB informed

    11. Major issues Limited market size (30% of world market in over 60 countries!) Long term commitment towards a single metric system IEC 60228 is a fundamental building block for all insulated cables, connectors, wiring devices, boxes, current protection devices. Inclusion of AWG could affect all.

    12. Role of CANENA ?