Answers

2015-03-31T19:44:00+05:30
According to me they shut off the main electrical supply for the area because the tanks which are with the firemen contain mostly 98% carbon dioxide,1% lithium and 1% oxygen. The lithium gas when combined with electric current produces a bang which is because of the presence of vibratory organisms in earth's crust.
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2015-03-31T21:36:24+05:30
According to your level-
water is a good conductor of electricity and if water touches any naked wire in that fire the current will flow though the water and may hurt anyone     
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