IEC TC 10 MT 22, meeting in Vienna for the revision of 60422 ed. 3-2005

On 10^th June 2010, in Vienna at the premises of Wien Energie Wienstrom a Viennese multi-utility serving 2 million people the meeting of IEC TC 10 MT 22 was held. The objective of the working group, coordinated by doct. Bruce Pahlavanpuor, is revising the important technical standard 60422 (Mineral insulating oils in electrical equipment – Supervision and maintenance guidance). In particular, the various editorial and technical comments received from the different national technical committees were discussed.

Vander Tumiatti participated to this working group in his position as Assistant Secretary IEC TC 10, and he, thanks to his great background of experience on this subject, was able to stimulate and deepen the discussion on this normative scenario. 15 international experts participated to the meeting contributing actively in the discussions (please find the list of the participants here below).

In more details, during the meeting the revisions to technical standard IEC 60422 Ed. 3 were formalised in accordance with the decisions of the Plenary Meeting IEC TC 10 held in October 2005 in Cape Town (South Africa).

The revision work of the standard has currently completed the CD (committee draft) phase, and shall move within this year into the CDV (committee draft for voting) phase, during which the revisions shall be voted by the national committees. It is foreseeable that during the first half of 2011, there shall be the FDIS (final draft international standard) preceding the printing, that shall be subject again to voting before becoming a definitive standard (IEC 60422 ed. 4) presumably during the second half of 2011.

This norm represents the synthesis of the best Available Techniques (MTD – BAT) for the management of the Life Cycle (LCM) of mineral insulating oils and the equipment containing them, related to the type of equipment and the functional category (type, voltage, capacity etc.).

The main points being subject to the revision have been:

1. corrosive sulfur and DBDS – definition of the threshold of DBDS at 10mg/kg with monitoring of the additives (type and concentration) and the passivator (I.E. Irgamet 39). The standard shall not miss the techniques for the reduction and/or mitigation of the concentrations of DBDS and other sulfur corrosive compounds.
2. moisture in insulating oil and solid insulations – monitoring and treatment in relation with the thermal profile of the equipment.
3. polar acid compounds – minimising the effects through the monitoring and treatment with different techniques.
4. PCBs – validation of the methods of analysis and decontamination and dehalogenation techniques.

Dr. Behrooz (Bruce) PAHLAVANPOUR, Convenor, Nynas Naphtenics UK
M. Yves BERTRAND, EDF R&D Department LME, FRANCE
Mr. Hans Peter, GASSER, WEIDMANN Electrical Technology AG, SWITZERLAND
Mr. Marius GRISARU, The Israel Electric Corporation Ltd, ISRAEL
Dr. Ivanka HOHLEIN-ATANASOVA, Siemens AG Katzwangerstr. GERMANY
Mr Volker KARIUS, Trench Switzerland AG, SWITZERLAND
Dr. Herbert KRATKY, WIENSTROM – Chemical laboratory, AUSTRIA
Mr. Bernd LOHMEYER, Shell Global Solutions GmbH, GERMANY
Ms. Marielle MARUGAN, (Representing Mr. C Perrier), AREVA T&P Power Transformers, FRANCE
Mr. Gerfrid NEWESLEY, Nynas-Techno! Hauoiels-GmbH, AUSTRIA
Mr. Stanislaw SLOWIKOWSKI, POLAND
Mr. Randy D. STEBBINS, S D Myers, Inc., USA
Dr. Maria SZEBENI, Tisza Pharrna VET Kft – HUNGARY
Mr. Vander TUMIATTI, Assistant Secretary IEC TC10, SEA Marconi Technologies, ITALY
Ms Julie VAN PETEGHEM, Laborelec, BELGIUM
Dr. Gordon WILSON, National Grid, UK