I don't know if dumping water on an electrical arc with a melted two liter is a good idea. The principal is good but if it doesn't trip the breaker or the plug it may cause more arching in other areas increasing the problem. I'm pretty sure sprinkler systems have a electrical disconnect installed incase they are activated. Sorry to repeat this part but the AFCI (Arc fault circuit interrupt) type breakers are designed to trip with non normal arcing. (normal arc is like flipping a light switch or plugging something in)



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