1、 81/246/RVCRESULT OF VOTING ON CDV Project number:IEC 62305-2,Ed.1 Reference number of the CDV 81/241A/CDV IEC/TC or SC TC 81 Date of circulation 2004-08-13 Title of the TC or SC concerned Lightning protection Title of the committee draft:IEC 62305-2,Ed.1:Protection against lightning-Part 2:Risk man
2、agement The above-mentioned document was distributed to National Committees with a request that voting take place for approval for circulation as an FDIS(or publication as a Technical Specification or Report)Voting results see printout attached Comments received see annex 1)In the case that the appr
3、oval criteria for acceptance have been met,a The committee draft for vote(CDV)will be registered as an FDIS by(date)b The draft technical report(DTR)will be published as a Technical Report The draft technical specification(DTS)will be published as a Technical Specification by(date).DECISION OF THE C
4、HAIRMAN(in cooperation with the secretariat),in the case that the approval criteria for acceptance have not been met c A revised committee draft for vote(CDV)will be distributed by(date).d A revised committee draft(CD)will be distributed by(date).NOTE In the case of a proposal c or d made by the cha
5、irman,P-members objecting to such a proposal shall inform the Central Office with copy to the secretary in writing within 2 months of the circulation of this compilation(see ISO/IEC Directives,Part 1,2.6.5).The comments will be discussed at the next meeting of the TC/SC on(date)2004-10 Name or signa
6、ture of the Secretary G.B.Lo Piparo Name or signature of the Chairman C.Bouquegneau FORM RVC(IEC)2002-03-20 1)to be collated on Form Comments and annexed.2 81/246/RVC ANNEX A Result of Voting on CDV-Document 81/241A/CDV Project:IEC 62305-2 Ed.1 IEC 62305-2,Ed.1:Protection against lightning-Part 2:Ri
7、sk management-This document cancels and replaces document 81/241/CDV due to modifications on the cover page.The closing date remains unchanged.Circulation Date:2004-01-16 Closing Date:2004-06-11 Country Status Received Vote Comments Austria P 2004-06-08 Y-Belgium P 2004-04-29 Y-China P 2004-06-03 Y-
8、Colombia P 2004-06-10 Y Y Denmark P 2004-06-04 N Y France P 2004-06-03 Y Y Germany P 2004-06-08 N Y Greece P 2004-06-11 N Y Ireland O 2004-06-02 Y-Italy P 2004-06-10 Y Y Japan P 2004-06-10 Y Y Korea(Rep.of)P 2004-06-11 Y-Luxemburg P 2004-06-09 Y-Mexico O 2004-06-11 A Y Netherlands P 2004-05-19 Y Y N
9、orway P 2004-06-10 N Y Poland P 2004-06-08 Y Y Portugal P 2004-06-09 Y-Romania O 2004-05-13 Y-Russian Fed.P 2004-06-10 Y-Serbia&Montenegro P 2004-05-17 Y-Slovenia O 2004-06-10 Y-Spain P 2004-06-07 Y-Sweden P 2004-06-10 A-Switzerland P 2004-05-18 Y-U.S.A.P 2004-06-07 N Y United Kingdom P 2004-06-08 N
10、 Y Approval CriteriaResult P-members voting:22 P-members in favour:16=73%=67%APPROVED Total votes cast:25 Total against:6=24%20and Hb300m.81/241A/CDV suggests,that protection in such cases is impossible!?(see DE-Annex B)d)Examples do not use default parameters(without any explanation)and several res
11、ults are incorrect.A completely revised 2ndCDV should be prepared:a)Symbols and indicesshall be brought in a systematical order throughout all parts of IEC 62305(For examples see DE comments and DE Annex).b)The examples in Annex H shall becalculable using software of Annex J(at least the most simple
12、 example)and shall be in agreement with all rules and values in Main text and in Annexes.c)Parameters shall be adapted to enable protection also for such cases:parameters PB 0,02 and PSPD 0,01 are possible and needed(see DE comment on current sharing).d)The examples should use default values of Main
13、 text and Annexes A to C(or explain why other values are used).Editorial matters will be checked during the preparation of FDIS document.Annex J will be fully aligned with parameters values and rules of main text.Loss parameters are now rough estimated;they will be evaluated and fixed by designer/ow
14、ner.Smaller values of probabilities will be allowed in case of measures having better protection characteristics compared with the requirements defined for LPL I.All parameters in examples comply with main text when only one zone structure is considered.Default Loss values are mean values for the wh
15、ole structure;therefore they are to be amended when a multiple zone structure is considered,to take into account the different zone characteristics.DE 2 General General andTechnical Symbols,indices and formulae are confusing and without systematical order.EXAMPLE for Annex A:Symbols,indices and form
16、ulae shall be brought in a systematical order.For examples see in DE-Annex column“Symbol new”or in the following See DE 1.4 81/246/RVC National Committee Clause/Subclause Paragraph Figure/Table Type of comment(General/Technical/Editorial)COMMENTS Proposed change OBSERVATIONS OF THE SECRETARIAT on each comment submitted Results o.k.,but confusing indices and formulae:Structure“a”:La,Wa,Ha,see NDa Structure“b”:L,W,H?=Hb?see area Ad S2:subtracting direct strikes in Am S4:subtracting direct strikes
