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Re: 921 Proposal Regarding Evidence of Electrical Arcing
Posted by: John J. Lentini, CFEI (IP Logged)
Date: February 24, 2007 10:51PM

Not speaking for the committee, but the general approach has been to avoid the use of photos not taken during test fires. Any photo, even one that clearly illustrates the point, is usually rejected unless the submitter KNOWS what caused the artifact. Some really excellent photos have been rejected because of this policy.

Because there are those who look for opportunities to disparage the document, the committee tries very hard to make everything that goes in like Caesar's wife--above reproach.

My suggestion is to resubmit the table, sans references to photos, as a comment. Tell the committee that they should have done an AIP (accept in principle) and simply deleted the photos and references thereto. BUT, I would suggest that you explain more clearly what you mean by "hydrocarbon flames." It is well known that the TEMPERATURE of a well ventilated gasoline fire does not exceed the TEMPERATURE of a well-ventilated wood fire. If any part of the table is incorrect, the whole table is likely to be rejected.

In its curent form, I would urge the committee to reject the table because of the "hydrocarbon flames" issue. It seems to promulgate the MYTH that hydrocarbon fires burn at higher temperatures than other fires, when what they really have is a higher heat release rate.

John Lentini, CFI, D-ABC
Fire Investigation Consultant
Florida Keys
[www.firescientist.com]



Subject Views Written By Posted
  921 Proposal Regarding Evidence of Electrical Arcing 1894 Mike Learmonth 02/24/2007 06:20PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 949 Jim Mazerat 02/24/2007 06:51PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 966 Nick Markowitz 02/24/2007 07:11PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 934 Mike Learmonth 02/24/2007 07:30PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 1042 John J. Lentini, CFEI 02/24/2007 10:51PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 886 Jim Mazerat 02/25/2007 11:04AM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 937 Mike Learmonth 02/25/2007 08:19PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 983 Gerald Hurst 02/26/2007 01:05PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 955 Mike Learmonth 02/26/2007 05:57PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 923 G Van Doren 02/25/2007 10:50AM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 912 John J. Lentini, CFEI 02/26/2007 01:22PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 877 Jim Mazerat 02/26/2007 02:29PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 902 G Van Doren 02/26/2007 04:05PM
  Re: 921 Proposal Regarding Evidence of Electrical Arcing 871 John J. Lentini, CFEI 02/26/2007 08:17PM


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