During the Internet search for explosions in the USA, SERGI noticed that most of the sites were equipped with fire fighting
    systems which had failed to extinguish the fire. This evidence was highlighted recently by the National Fire Protection
    Association Handbook, Edition 2002, Vol II Section 13, pages 292 & 293. 

    Because of the large number of fire fighting system failures, the NFPA Handbook emphasizes the TRANSFORMER 
    PROTECTOR technology for acting before explosion.