1、81/226/INFFor IEC use only2003-07-25INTERNATIONAL ELECTROTECHNICAL COMMISSIONTECHNICAL COMMITTEE No.81:LIGHTNING PROTECTIONTC 81/WG 9 Convenors report(to be discussed under draft agenda item 8 at the forthcoming TC 81 meeting to be held in Palma deMallorca 29th and 30th September 2003)As decided at
2、the last meeting of TC 81 held in Florence,task of the WG 9 is to prepare a CD relevant toproject IEC 62305-2:Risk management for structures and services.A meeting has been done in Rome on December 2002 in which the comments received on 81/173/NP havebeen punctually considered and discussed,taking a
3、lso into account the new task relevant to the servicesand the results of discussions during the Beijing meeting.Valuable contributions have been received from Mr.Landers and Mr.Kern(Germany),Mr.Flisowski(Poland),Mr.Rousseau(France),Mr.Darveniza(Australia),Mr.Kransteiner(Austria),Mr.Surtees and Mr.Gu
4、thrie(USA),and from the convenor of WG10,Mr.Zeddam,in order to agree the part of document relevantto the management of risk for protection of services entering the structure.During this meeting the way of calculation the fundamental parameters for risk assessment have beenextensively discussed.A tas
5、k force(Mr.Kern,Mr.Flisowski,Mr.Surtees,Mr.Gillespie,Mr.Rousseau)was set up with the aim toprepare a simplified software for risk assessment.A new advanced draft(81/213/CD)has been prepared by the convenor and circulated by the end of Marchamong the National Committees.Deadline for comments was the
6、20th June 2003 and CC was immediatelycirculated among the WG9 members.A new meeting of WG 9 was held in Roma on 17th and 18th July 2003.In this meeting:comments to 81/213/CD were discussed;a first release of software prepared by the task force was exsamined.A complete document for CDV stage could be prepared according to the established TC 81 workprogramme._